Use the labels in the right column to find what you want. Or you can go thru them one by one, there are only 33,864 posts. Searching is done in the search box in upper left corner. I blog on anything to do with stroke. DO NOT DO ANYTHING SUGGESTED HERE AS I AM NOT MEDICALLY TRAINED, YOUR DOCTOR IS, LISTEN TO THEM. BUT I BET THEY DON'T KNOW HOW TO GET YOU 100% RECOVERED. I DON'T EITHER BUT HAVE PLENTY OF QUESTIONS FOR YOUR DOCTOR TO ANSWER.
Changing stroke rehab and research worldwide now.Time is Brain!trillions and trillions of neuronsthatDIEeach day because there areNOeffective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.
What this blog is for:
My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.
You lost 5 lost years of brain cognition due to your stroke and your incompetent? doctor HAS NOTHING TO FIX THAT, RIGHT? You can't do this on your own, that would be practicing medicine without a license. Don't listen to me, I'm not medically trained.
A new clinical trial shows that the right kind of brain training may actually rejuvenate the brain’s communication system.
What if you could reverse brain aging with behavior alone? A double-blind trial funded by the National Institute on Aging found that "speed training" (exercises that challenge you to identify and respond to visual information faster and faster) reversed neurotransmitter decline in older adults. The changes matched what's typically seen only with medication. It took just 10 weeks.
The concept that cognitive health can be preserved or improved is often expressed as "use it or lose it."
Numerous modifiable risk factors are associated with "losing" cognitive
abilities with age and a cognitively active lifestyle may have a protective effect.
Yuko Hara, PhD
But what is a "cognitively active lifestyle" — do crosswords and Sudoku count?
One
popular approach is "brain trfaining." While not a scientific term with
an established definition, it "typically refers to tasks or drills that
are designed to strengthen specific aspects of one's cognitive
function," Yuko Hara, PhD, director of Aging and Alzheimer's Prevention
at the Alzheimer's Drug Discovery Foundation, told Medscape Medical News.
Manuel
Montero-Odasso, MD, PhD, director of the Gait and Brain Lab, Parkwood
Institute, London, Ontario, Canada, elaborated. "Cognitive training
involves performing a definitive task or set of tasks where you increase
attentional demands to improve focus and concentration and memory," he
told Medscape Medical News. "You try to execute the new things that you've learned and to remember them."
Manuel Montero-Odasso, MD, PhD
In a commentary on Medscape Medical News,
neuroscientist Michael Merzenich, PhD, professor emeritus at University
of California San Francisco, said that growing a person's cognitive
reserve and actively managing brain health can play an important role in
preventing or delaying Alzheimer's disease. Important components of
this include brain training and physical exercise.
Brain Training: Mechanism of Action
Montero-Odasso,
who is also team leader at the Canadian Consortium on Neurodegeneration
in Aging and team co-leader at the Ontario Neurodegenerative Research
Initiative, explained that cognitive training creates new synapses in
the brain, thus stimulating neuroplasticity.
"When
we try to activate networks mainly in the frontal lobe, the prefrontal
cortex, a key mechanism underlying this process is enhancement of the
synaptic plasticity at excitatory synapses, which connect neurons into
networks; in other words, we generate new synapses, and that's how we
enhance brain health and cognitive abilities."
The more neural
connections, the greater the processing speed of the brain, he
continued. "Cognitive training creates an anatomical change in the
brain."
Executive functions, which include attention, inhibition,
planning, and multitasking, are regulated predominantly by the
prefrontal cortex. Damage in this region of the brain is also implicated in dementia.
Alterations in the connectivity of this area are associated with
cognitive impairment, independent of other structural pathological
aberrations (eg, gray matter atrophy). These patterns may precede
structural pathological changes associated with cognitive impairment and
dementia.
Neuroplasticity
changes have been corroborated through neuroimaging, which has
demonstrated that after cognitive training, there is more activation in
the prefrontal cortex that correlates with new synapses, Montero-Odasso
said.
Henry Mahncke, PhD, CEO of the brain training company Posit
Science/BrainHQ, explained that early research was conducted on rodents
and monkeys, with Merzenich as one of the leading pioneers in developing the concept of brain plasticity. Merzenich co-founded Posit Science and is currently its chief scientific officer.
Henry Mahncke, PhD
Mahncke
recounted that as a graduate student, he had worked with Merzenich
researching brain plasticity. When Merzenich founded Posit Science, he
asked Mahncke to join the company to help develop approaches to enhance
brain plasticity — building the brain-training exercises and running the
clinical trials.
"It's now well understood that the brain can
rewire itself at any age and in almost any condition," Mahncke said. "In
kids and in younger and older adults, whether with healthy or unhealthy
brains, the fundamental way the brain works is by continually rewiring
and rebuilding itself, based on what we ask it to do."
If we
understand the principles of brain plasticity, "we can build an adaptive
brain and give it exercises to rewire in a healthy direction, improving
cognitive abilities like memory, speed, and attention," Mahncke said.
Unsubstantiated Claims and Controversy
Brain training is not without controversy, Hara pointed out. "Some manufacturers of brain games have been criticized and even fined for making unsubstantiated claims," she said.
A 2016 review
found that brain-training interventions do improve performance on
specific trained tasks, but there is less evidence that they improve
performance on closely related tasks and little evidence that training
improves everyday cognitive performance. A 2018 review
reached similar conclusions, calling evidence regarding prevention or
delay of cognitive decline or dementia through brain games
"insufficient," although cognitive training could "improve cognition in
the domain trained."
"The general consensus is that for most
brain-training programs, people may get better at specific tasks through
practice, but these improvements don't necessarily translate into
improvement in other tasks that require other cognitive domains or
prevention of dementia or age-related cognitive decline," Hara said.
Hara
noted that most brain-training programs "have not been rigorously
tested in clinical trials" — although some, such as those featured in
the ACTIVE trial, did show evidence of effectiveness.
Mahncke
agreed. "Asking whether brain training works is like asking whether
small molecules improve health," he said noting that some brain-training
programs are nonsense and not evidence-based. He believes that his
company's product, BrainHQ, and some others are "backed by robust
evidence in their ability to stave off, slow, or even reverse cognitive
changes."
BrainHQ is a
web-based brain game suite that can be used independently as an app or
in group settings (classes and Webinars) and is covered by some Medicare
Advantage insurance plans. It encompasses "dozens of individual
brain-training exercises, linked by a common thread. Each one is
intensively designed to make the brain faster and more accurate," said
Mahncke.
He
explained that human brains "get noisy as people get older, like a
radio which is wearing out, so there's static in the background. This
makes the music hard to hear, and in the case of the human brain, it
makes it difficult to pay attention." The exercises are "designed to
tamp down the 'noise,' speed up the brain, and make information
processing more accurate."
Screenshot
from a BrainHQ game used in the ACTIVE study. One of two possible
targets flashes in the center of gaze (car), while a third target
appears on the periphery (Rte66). With correct answers, the exercise
speeds up, distractors appear on the periphery, periphery widens, and
contrast lowers between targets and background.
Mahncke called this a "bottom-up" approach, in contrast to many previous cognitive-training approaches that come from the brain injury rehabilitation field.
They teach "top-down" skills and strategies designed to compensate for
deficits in specific domains, such as reading, concentration, or fine
motor skills.
By contrast, the approach of BrainHQ is "to improve
the overall processing system of the brain with speed, attention,
working memory, and executive function, which will in turn impact all
skills and activities."
Supporting Evidence
Mahncke cited several supporting studies. For example, the IMPACT study
randomized 487 adults (aged ≥ 65 years) to receive either a brain
plasticity–based computerized cognitive training program (BrainHQ) or a
novelty- and intensity-matched general cognitive stimulation treatment
program (intervention and control group, respectively) for an 8-week
period.
Those who underwent brain training showed significantly
greater improvement in the repeatable Battery for the Assessment of
Neuropsychological Status (RBANS Auditory Memory/Attention) than those
in the control group (3.9 vs 1.8, respectively; P =.02). The
intervention group also showed significant improvements on multiple
secondary measures of attention and memory. The magnitude of the effect
sizes suggests that the results are clinically significant, according to
the authors.
The ACTIVE study
tested the effects of different cognitive training programs on
cognitive function and time to dementia. The researchers randomized 2802
healthy older adults (mean age, 74 years) to a control group with no
cognitive training or one of three brain-training groups comprising:
In-person training on verbal memory skills
In-person training on reasoning and problem-solving
Computer-based speed-of-processing training on visual attention
Participants
in the training groups completed 10 sessions, each lasting 60-75
minutes, over a 5- to 6-week period. A random subsample of each training
group was selected to receive "booster" sessions, with four-session
booster training delivered at 11 and 35 months. All study participants
completed follow-up tests of cognition and function after 1, 2, 3, 5,
and 10 years.
At the end of 10 years,
those assigned to the speed-of-processing training, now part of
BrainHQ, had a 29% lower risk for dementia than those in the control
group who received no training. No reduction was found in the memory or
reasoning training groups. Participants who completed the "booster"
sessions had an even greater reduction: Each additional booster session
was associated with a 10% lower risk for dementia.
Montero-Odasso was involved in the SYNERGIC study that randomized 175 participants with mild cognitive impairment (MCI; average age, 73 years) to one of five study arms:
Multidomain intervention with exercise, cognitive training, and vitamin D
Exercise, cognitive training, and placebo
Exercise, sham cognitive training, and vitamin D
Exercise, sham cognitive training, and placebo
Control group with balance-toning exercise, sham cognitive training, and placebo
"Sham"
cognitive training consisted of alternating between two tasks
(touristic search and video watching) performed on a tablet, with the
same time exposure as the intervention training.
The researchers
found that after 6 months of interventions, all active arms with
aerobic-resistance exercise showed improvement in the ADAS-Cog-13, an
established outcome to evaluate dementia treatments, when compared with
the control group — regardless of the addition of cognitive training or
vitamin D.
Compared with exercise alone (arms 3 and 4), those who
did exercise plus cognitive training (arms 1 and 2) showed greater
improvements in their ADAS-Cog-13l score, with a mean difference of
−1.45 points (P = .02). The greatest improvement was seen in those who underwent the multidomain intervention in arm 1.
The
authors noted that the mean 2.64-point improvement seen in the
ADAS-Cog-13 for the multidomain intervention is actually larger than
changes seen in previous pharmaceutical trials among individuals with
MCI or mild dementia and "approaches" the three points considered
clinically meaningful.
"We found that older adults with MCI who
received aerobic-resistance exercise with sequential computerized
cognitive training significantly improved cognition," Montero-Odasso
said. "The cognitive training we used was called Neuropeak,
a multidomain lifestyle training delivered through a web-based platform
developed by our co-leader Louis Bherer at Université de Montréal."
He
explained that the purpose "is to challenge your brain to the point
where you need to make an effort to remember things, pay attention, and
later to execute tasks. The evidence from clinical trials, including
ours, shows this type of brain challenge is effective in slowing and
even reversing cognitive decline."
Formal
brain-training programs aren't the only way to improve brain
plasticity, Hara said. Observational studies suggested an association
between improved cognitive performance and/or lower dementia risk and
engaging in number and word puzzles, such as crosswords, cards, or board games.
Some studies suggested that older adults who use technology might also protect their cognitive reserve. Hara cited a US longitudinal study
of more than 1800 older adults suggesting that regular internet users
had roughly half the risk for dementia compared to nonregular internet
users. Estimates of daily internet use suggested a U-shaped relationship
with dementia with 0.1-2.0 hours daily (excluding time spent watching
television or movies online) associated with the lowest risk. Similar
associations between internet use and a lower risk for cognitive decline
have been reported in the United Kingdom and Europe.
"Engaging
in mentally stimulating activities can increase 'cognitive reserve' —
meaning, capacity of the brain to resist the effects of age-related
changes or disease-related pathology, such that one can maintain
cognitive function for longer," Hara said. "Cognitively stimulating
activities, regardless of the type, may help delay the onset of
cognitive decline."
She listed several examples of activities that
are stimulating to the brain, including learning a new game or puzzle, a
new language, a new dance, and learning how to play a musical
instrument.
Montero-Odasso emphasized that the "newness" is key to
increasing and preserving cognitive reserve. "Just surfing the
internet, playing word or board games or doing crossword puzzles won't
be enough if you've been doing these things all your life," he said. "It
won't hurt, of course, but it won't necessarily increase your cognitive
abilities."
"For
example, a person who regularly engages in public speaking may not
improve cognition by taking a public-speaking course, but someone who
has never spoken before an audience might show cognitive improvements as
a result of learning a new skill," he said. "Or someone who knows
several languages already might gain from learning a brand-new
language."
He cited research supporting the benefits of dancing,
which he called "an ideal activity because it's physical, so it
provides the exercise that's been associated with improved cognition.
But it also requires learning new steps and moves, which builds the
synapses in the brain. And the socialization of dance classes adds
another component that can improve cognition."
Mahncke hopes that
beyond engaging in day-to-day new activities, seniors will participate
in computerized brain training. "There's no reason that evidence-based
training can't be offered in senior and community centers, as yoga and
swimming are," he said. "It doesn't have to be simply something people
do on their own virtually."
Zoom classes and Medicare
reimbursements are "good steps in the right direction, but it's time to
expand this potentially life-transformative intervention so that it
reaches the ever-expanding population of seniors in the United States
and beyond."
Hara reported having no disclosures.
Montero-Odasso reported having no commercial or financial interest
related to this topic. He serves as the president of the Canadian
Geriatrics Société and is team leader in the Canadian Consortium of
Neurodegeneration in Aging. Mahncke is CEO of the brain training company
Posit Science/BrainHQ.
Batya Swift Yasgur, MA, LSW, is a
freelance writer with a counseling practice in Teaneck, New Jersey. She
is a regular contributor to numerous medical publications, including
Medscape Medical News and WebMD, and is the author of several
consumer-oriented health books as well as Behind the Burqa: Our Lives in Afghanistan and How We Escaped to Freedom (the memoir of two brave Afghan sisters who told her their story).
SAN FRANCISCO, May 08, 2019 (GLOBE NEWSWIRE) -- In a first of its
kind study, computerized brain training was found to improve
hemi-spatial neglect, which is a common and often intractable problem
after stroke or other acquired brain injury. The brain training studied
was from Posit Science, maker of BrainHQ online brain exercises and assessments, and was presented today at the annual meeting of the American Academy of Neurology.
About
a third of patients with a brain injury exhibit a complex and
debilitating array of neurological deficits known as the “neglect
syndrome” (sometimes called, “hemi-spatial neglect” or “neglect”). The
most apparent symptom of neglect is the inability of patients to
efficiently process information on the side of space opposite the
injury. For example, a patient may be unable to navigate, detect food on
half their plate, or even safely cross the street. Patients often
suffer higher rates of disability and respond poorly to conventional
forms of rehabilitation, compared to patients without neglect.
To date, there’s been no widely-applicable intervention for addressing neglect.
In
a new study, conducted at Washington University, Spalding
Rehabilitation Hospital, and the Boston Veterans Administration Medical
Center, researchers (from Harvard, Washington University, and Posit
Science) found a relatively small number of hours of computerized brain
training (self-administered by the patients in their homes) can drive
significant neurological and functional improvements.
While
rehabilitation efforts have previously tended to focus on simple
interventions (e.g. repeatedly reminding patients to look toward the
neglected side), this brain training takes a unique approach by focusing
on underlying post-injury deficits in both general alertness and
momentary heightened attention. The training makes increasing demands on
both general and momentary alertness by having the patient respond to
non-matching stimuli and withhold response to an infrequently-presented
target stimulus. This is referred to in the literature as Tonic and
Phasic Alertness Training (TAPAT), and, notably, does not target spatial
attention.
This
was a multi-site, double-blind, randomized controlled trial, in which
49 patients were randomized into either (1) an intervention group asked
to complete 12 hours of TAPAT training, or (2) an active control group
asked to complete an equal number of hours training on computerized
causal games.
The researchers found a significant improvement in
the primary outcome, a validated measure of spatial bias (Posner cueing
task), and in the secondary composite measure of functional ability, as
compared to the active control.
“Patients with neglect exhibited a
significant reduction in spatial bias, as well as improvements in
functional outcomes following a simple, at-home exercise,” summarized Dr. Tom Van Vleet, who presented the data.
“This is a breakthrough result in an area where there aren’t many treatment options,” observed Dr. Henry Mahncke,
CEO of Posit Science. “This demonstration that plasticity-based
training can personalize to the patient and can be administered at home
is important for access and affordability. We expect to work with
clinicians, payors, and regulators to make this widely available, as
quickly as possible.”
For more information, contact media@brainhq.com
You'll have to ask your doctor what in this newest research worked when earlier research showed no benefits. Do not take, 'I don't know' for an answer. Screaming may be required or call the president and ask why your doctor won't perform doctor responsibilities. Namely keeping current in their field.
The
effects of mental, physical, and combination of these two trainings
were investigated on cognitive performance, serum level of brain derived
neurotrophic factor (BDNF), and irisin in women diagnosed with mild
cognitive impairment (MCI).
Material and Methods:
Forty-four
participants were randomized into 4 groups: physical training (PH; 8
weeks’ aerobic training, n = 11), mental training (ME; special computer
gaming, n = 11), combined (PH + ME; n = 13), and control group (CO; n =
9).
Results:
Analysis of variance with Tukey post hoc test revealed a significant increase in working memory (P = .012) and BDNF (P
= 0.024) in the ME compared with the CO group. Also the ME group in
comparison with the PH group demonstrated better working memory (P = .014) and processing speed (P = .024).
Conclusion:
Positive
effect of mental training on the cognitive parameters, parallel with
BDNF elevation, suggests that mental training is a more useful, safe,
and persistent strategy to attenuate the progression of MCI probably via
BDNF elevation, but the effect size is relatively small elevation
An extensive review of research on exercise, nutritional supplements, drugs, and brain-training techniques concludes there is no definitive evidence that any of them protect against Alzheimer's disease or other types of dementia.
"To put it simply, all evidence indicates that there is no magic bullet," said Dr. Eric B. Larson, executive director of the Kaiser Permanente Washington Health Research Institute in Seattle, in an editorial online December 18 in the Annals of Internal Medicine, where the analyses appear.
The results are important because as the population gets older, the number of people with dementia increases. However, in some regions, such as the United States, Canada and the United Kingdom, the odds of developing dementia seem to be declining. The reasons are not clear.
The analysis of studies looking at the effects of nutritional supplements found that those like ginkgo biloba, folic acid, multivitamins, vitamin D, vitamin E, and beta carotene "did not reduce the risk for cognitive decline."
A second analysis reviewing tests of diabetes medications, hormones, lipid-lowering medicines, dementia medicines, and anti-inflammatory drugs found that they "neither improved nor slowed decline in cognitive test performance" while sometimes posing a risk of side effects.
A third analysis concluded that tests of brain-training programs, sometimes marketed to normal people or people with mild cognitive impairment, revealed the training might help improve specific skills, but produced no real broad improvement in brain functioning.
"If you exercise one of those functions, that function will improve but other areas may not change all," said Dr. Paul Schulz, a dementia neurologist at the University of Texas Health Science Center in Houston. "So if you exercise attention, that may not improve your ability to find the grocery store."
The same lack of evidence was seen when assessing the ability of physical activity to slow the development of dementia in adults who have not been diagnosed with cognitive impairment. The studies included evaluations of things, such as aerobic training, resistance training, and tai chi.
When it comes to the idea that exercise might delay brain deterioration, "we're not very good at actually studying physical activity," Dr. Rhonda Au, a professor of anatomy and neurobiology, neurology and epidemiology at the Boston University School of Medicine told Reuters Health by phone.
"I think it's a little bit unrealistic to think that in a short period of time for something as complex as Alzheimer's disease or dementia that we're going to see real effects," said Au, who was not involved in the reviews. "The overall take-home message is we're not doing a very good job of studying it in a very systematic way."
With nutritional supplements, evidence is limited because "very few have been thoroughly studied," said Schulz, who also was not involved in the reviews. There's also concern that "we don't know if they interfere with the medications that we do give people that we know helps them."
In a phone interview, he cited the case of a patient who was taking 20 supplements for memory "and he was really confused. We just stopped all 20 and he got a lot better. If you put 20 things in a blender, you don't know what's going to come out the other side."
Schulz and others said there is a strong sense among researchers that they are closing in on treatments that will be effective at stalling dementia.
Dean Hartley, director of science initiatives for the Alzheimer's Association, noted that other groups that have looked at the evidence have offered more upbeat conclusions than the current studies.
For example, a review published in July in The Lancet estimated that among all the causes of dementia, about one-third of them might be modified by a person's lifestyle. That group calculated that getting a good education cuts the risk by 8%. In midlife, preventing or correcting hearing loss reduces the risk by 9%, treating high blood pressure cuts it by 2%, and not being obese lowers it by 1%. Late in life, the risk goes up 5% among smokers, 4% for people with depression, 3% for folks who are physically inactive, 2% for those experiencing social isolation, and 1% if they have diabetes.
"I'm optimistic about this," Hartley told Reuters Health in a telephone interview. The authors of the new analyses "didn't come to the point to say this specifically would change the course of cognitive decline or dementia. But solid evidence is starting to mount to suggest that lifestyle can have an impact."
"When people ask me how to prevent dementia, they often want a simple answer, such as vitamins, dietary supplements, or the latest hyped idea," Larson writes in the editorial.
They can take many commonsense actions that promote health throughout life and may help to avoid or delay (Alzheimer's and other dementias), namely regular physical activity; control of vascular risk factors, including preventing or effectively managing diabetes; not smoking; and maintaining a healthy diet and weight, he writes.
"Engaging in cognitively stimulating activities and avoiding social isolation also are probably beneficial," Larson continues. So is correcting vision and hearing loss in the elderly, along with avoiding long-term use of certain drugs.
"There are things people can do now that will do no harm," Hartley said. "Most of these things will benefit your general health."
—Gene Emery
http://www.cbsnews.com/news/report-brain-training-games-cognitive-benefits-claims/ NEW YORK -- Can you keep your mind sharp -- as you age -- by playing so-called brain games?
A report Tuesday by AARP focused on what has become a $1.3 billion business.
Ads for online brain-training games
tout their cognitive benefits saying they improve memory, brain speed
and attention. But the report called the evidence behind these claims of
cognitive benefits "weak to nonexistent."
Sarah Lock, executive director of the AARP's Global Council on Brain Health, shed light on the report.
Sarah Lock, executive director of the AARP's Global Council on Brain Health
CBS News
"They
might get better at the game but what we don't know is how that's going
to affect your everyday functioning," Lock told CBS News. "So you might
get better at the game but it's not going to help you manage your
finances any better."
Training to improve one type of cognitive
ability -- like memory -- doesn't end up improving other skills such as
how fast you process information.
And the report says there's often exaggerating when these products are marketed.
Last year, the FTC fined the makers of Luminosity $2 million for claiming its games could help users reduce or delay age-related cognitive impairment.
The
good news is that cognitively stimulating activities are easy to find,
such as learning a new skill. At the Greenwich House Senior Center,
Betty Tiago is taking up art.
"I think anything creative helps to stimulate your brain," Tiago said.
Betty Tiago
CBS News
Other
ideas to help improve cognitive benefits are activities that are novel
and require focus and have a level of depth and engagement.
Some recommendations from the AARP include:
Educational opportunities (formal or informal including volunteering)
Learn new skill (music or language)
Leisure activities (playing cards, playing with children)
Mentally and physically stimulating activities (tennis and dancing)
Brain
training is currently widely used in an attempt to improve cognitive
functioning. Computer-based training can be performed at home and could
therefore be an effective add-on to available rehabilitation programs
aimed at improving cognitive functioning. Several studies have reported
cognitive improvements after computer training, but most lacked proper
active and passive control conditions.
OBJECTIVE:
Our
aim was to investigate whether computer-based cognitive flexibility
training improves executive functioning after stroke. We also conducted
within-group analyses similar to those used in previous studies, to
assess inferences about transfer effects when comparisons to proper
control groups are missing.
METHODS:
We
conducted a randomized controlled, double blind trial. Adults (30-80
years old) who had suffered a stroke within the last 5 years were
assigned to either an intervention group (n = 38), active control group
(i.e., mock training; n = 35), or waiting list control group (n = 24).
The intervention and mock training consisted of 58 half-hour sessions
within a 12-week period. Cognitive functioning was assessed using
several paper-and-pencil and computerized neuropsychological tasks
before the training, immediately after training, and 4 weeks after
training completion.
RESULTS AND CONCLUSIONS:
Both
training groups improved on training tasks, and all groups improved on
several transfer tasks (three executive functioning tasks, attention,
reasoning, and psychomotor speed). Improvements remained 4 weeks after
training completion. However, the amount of improvement in executive and
general cognitive functioning in the intervention group was similar to
that of both control groups (active control and waiting list).
Therefore, this improvement was likely due to training-unspecific
effects. Our results stress the importance to include both active and
passive control conditions in the study design and analyses. Results
from studies without proper control conditions should be interpreted
with care.
But I wonder if they are looking at this wrong. Novel and new tasks build brain reserve so insults like stroke and dementia are not as severe. 2 years old so I wonder if consensus has changed.
October 20, 2014
As the baby boomers enter their golden years with mounting concerns
about the potential loss of cognitive abilities, markets are responding
with products promising to allay anxieties about potential decline.
Computer-based cognitive-training software –popularly known as brain
games– claim a growing share of the marketplace. The promotion of these
products reassures and entices a worried public.
Consumers are told that playing brain games will make them smarter,
more alert, and able to learn faster and better. In other words, the
promise is that if you adhere to a prescribed regimen of cognitive
exercise, you will reduce cognitive slowing and forgetfulness, and will
fundamentally improve your mind and brain.
It is customary for advertising to highlight the benefits and
overstate potential advantages of their products. In the brain-game
market, advertisements also reassure consumers that claims and promises
are based on solid scientific evidence, as the games are “designed by
neuroscientists” at top universities and research
centers. Some companies present lists of credentialed scientific
consultants and keep registries of scientific studies pertinent to
cognitive training. Often, however, the cited research is only
tangentially related to the scientific claims of the company, and to the
games they sell. In addition, even published peer-reviewed studies
merit critical evaluation. A prudent approach calls for integrating
findings over a body of research rather than relying on single studies
that often include only a small number of participants.
The Stanford Center on Longevity and the Berlin Max Planck Institute
for Human Development gathered many of the world’s leading cognitive
psychologists and neuroscientists –people who have dedicated their
careers to studying the aging mind and brain– to share their views about
brain games and offer a consensus report to the public. What do expert
scientists think about these claims and promises? Do they have specific
recommendations for effective ways to boost cognition in healthy, older
adults? Are there merits to the claimed benefits of the brain games and
if so, do older adults benefit from brain-game learning in the same ways
younger people do? How large are the gains associated with
computer-based cognitive exercises? Are the gains restricted to specific
skills or does general cognitive aptitude improve? How does playing
games compare with other proposed means of mitigating age-related
declines, such as physical activity and exercise, meditation, or social
engagement?
The search for effective means of mitigating or postponing
age-related cognitive declines has taught most of us to recognize the
enormous complexity of the subject matter. Like many challenging
scientific topics, this is a devil of many details. The consensus of the
group is that claims promoting brain games are frequently exaggerated
and at times misleading. Cognitive training produces statistically
significant improvement in practiced skills that sometimes extends to
improvement on other cognitive tasks administered in the lab. In some
studies, such gains endure, while other reports document dissipation
over time. In commercial promotion, these small, narrow, and fleeting
advances are often billed as general and lasting improvements of mind
and brain. The aggressive advertising entices consumers to spend money
on products and to take up new behaviors, such as gaming, based on these
exaggerated claims. As frequently happens, initial findings, based on
small samples, generate understandable excitement by suggesting that
some brain games may enhance specific aspects of behavior and even alter
related brain structures and functions. However, as the findings
accumulate, compelling evidence of general and enduring positive effects
on the way people’s minds and brains age has remained elusive.
These
conclusions do not mean that the brain does not remain malleable, even
in old age. Any mentally effortful new experience, such as learning a
language, acquiring a motor skill, navigating in a new environment, and,
yes, playing commercially available computer games, will produce
changes in those neural systems that support acquisition of the new
skill. For example, there may be an increase in the number of synapses,
the number of neurons and supporting cells, or a strengthening of the
connections among them. This type of brain plasticity is possible
throughout the life span, though younger brains seem to have an
advantage over the older ones. It would be appropriate to conclude from
such work that the potential to learn new skills remains intact
throughout the life span. However at this point it is not appropriate to
conclude that training-induced changes go significantly beyond the
learned skills, that they affect broad abilities with real-world
relevance, or that they generally promote “brain health”.
As we take a closer look at the evidence on brain games, one issue
needs to be kept in mind: It is not sufficient to test the hypothesis of
training-induced benefits against the assumption that training brings
no performance increases at all. Rather, we need to establish that
observed benefits are not easily and more parsimoniously explained by
factors that are long known to benefit performance, such as the
acquisition of new strategies or changes in motivation. It is well
established, for example, that improvements on a particular memory task
often result from subtle changes in strategy thatreflect
improvement in managing the demands of that particular task. Such
improvement is rewarding for players (the fun factor) but does not imply
a general improvement in memory. In fact, the notion that performance
on a single task cannot stand in for an entire ability is a cornerstone
of scientific psychology. Claims about brain games often ignore this
tenet. In psychology, it is good scientific practice to combine
information provided by many tasks to generate an overall index
representing a given ability. According to the American
Psychological Association, newly developed psychological tests must meet
specific psychometric standards, including reliability and validity.
The same standards should be extended into the brain game industry, but
this is not the state of affairs today.
To date, there is little evidence that playing brain games improves
underlying broad cognitive abilities, or that it enables one to better
navigate a complex realm of everyday life. Some intriguing isolated
reports do inspire additional research, however. For instance, some
studies suggest that both non-computerized reasoning and computerized
speed-of-processing training are associated with improved driving in
older adults and a reduction in the number of accidents. Another study
revealed, for a sample of younger adults, that 100 days of practicing 12
different computerized cognitive tasks resulted in small general
improvements in the cognitive abilities of reasoning and episodic
memory, some of which were maintained over a period of two years. In
other studies, older adults have reported that they felt better about
everyday functioning after cognitive training, but no objective measures
supported that impression. Additional systematic research is needed to
replicate, clarify, consolidate, and expand such results. To be fully
credible, an empirical test of the usefulness of brain games needs to
address the following questions. Does the improvement encompass a broad
array of tasks that constitute a particular ability, or does it
just reflect the acquisition of specific skills? Do the gains persist
for a reasonable amount of time? Are the positive changes noticed in
real life indices of cognitive health? What role do motivation and
expectations play in bringing about improvements in cognition when they
are observed?
In
a balanced evaluation of brain games, we also need to keep in mind
opportunity costs. Time spent playing the games is time not spent
reading, socializing, gardening, exercising, or engaging in many other
activities that may benefit cognitive and physical health of older
adults. Given that the effects of playing the games tend to be
task-specific, it may be advisable to train an activity that by itself
comes with benefits for everyday life. Another drawback of publicizing
computer games as a fix to deteriorating cognitive performance is that
it diverts attention and resources from prevention efforts. The promise
of a magic bullet detracts from the message that cognitive vigor in old
age, to the extent that it can be influenced by the lives we live,
reflects the long-term effects of a healthy and active lifestyle.
We also must keep in mind that studies reporting positive effects of
brain games on cognition are more likely to be published than studies
with null results –the so-called “file drawer effect”– such that even
the available evidence is likely to draw an overly positive picture of
the true state of affairs. Statistical methods such meta-analysis, which
integrates the results of many studies in a given field of inquiry,
allow estimation of effect magnitude as well as the likelihood of the
file-drawer effect. While some meta-analyses report small positive
effects of training on cognition, others note substantial disparities in
methodological rigor among the studies that cast doubt on any firm
conclusion. Further, the problems that haunt individual studies do not
simply disappear when results from such studies are summarized in a
meta-analysis. In particular, the practice of assessing specific tests
rather than broader assays of ability is just as problematic on the
level of meta-analytic integration as it is on the level of individual
studies.
In summary, research on aging has shown that the human mind is
malleable throughout life span. In developed countries around the world,
later-born cohorts live longer and reach old age with higher levels of
cognitive functioning than those who were born in earlier times. When
researchers follow people across their adult lives, they find that those
who live cognitively active, socially connected lives and maintain
healthy lifestyles are less likely to suffer debilitating illness and
early cognitive decline in their golden years than their sedentary,
cognitively and socially disengaged counterparts. The goal of research
on the effectiveness of computer-based cognitive exercise is to provide
experimental evidence to support or qualify these observations. Some of
the initial results are promising and make further research highly
desirable. However, at present, these findings do not provide a sound
basis for the claims made by commercial companies selling brain games.
Many scientists cringe at exuberant advertisements claiming improvements
in the speed and efficiency of cognitive processing and dramatic gains
in “intelligence”, in particular when these appear in otherwise trusted
news sources. In the judgment of the signatories below, exaggerated and
misleading claims exploit the anxiety of adults facing old age for
commercial purposes. Perhaps the most pernicious claim, devoid of any
scientifically credible evidence, is that brain games prevent or reverse
Alzheimer’s disease.
In closing, we offer five recommendations. Some of these
recommendations reflect experimental findings in human populations,
whereas others are based on a synthesis of correlational evidence in
humans and mechanistic knowledge about risks and protective factors.
Much more research needs to be done before we understand whether and
what types of challenges and engagements benefit cognitive functioning
in everyday life. In the absence of clear evidence, the recommendation
of the group, based largely on correlational findings, is that
individuals lead physically active, intellectually challenging, and
socially engaged lives, in ways that work for them. Before investing
time and money on brain games, consider what economists call opportunity
costs: If an hour spent doing solo software drills is an hour not spent
hiking, learning Italian, making a new recipe, or playing with your
grandchildren, it may not be worth it. But if it replaces time spent in a
sedentary state, like watching television, the choice may make more
sense for you.
Physical exercise is a moderately effective way to improve general
health, including brain fitness. Scientists have found that regular
aerobic exercise increases blood flow to the brain, and helps to support
formation of new neural and vascular connections. Physical exercise has
been shown to improve attention, reasoning, and components of memory.
All said, one can expect small but noticeable gains in cognitive
performance, or attenuation of loss, from taking up aerobic exercise
training.
A single study, conducted by researchers with financial interests in
the product, or one quote from a scientist advocating the product, is
not enough to assume that a game has been rigorously examined. Findings
need to be replicated at multiple sites, based on studies conducted by
independent researchers who are funded by independent sources. Moreover,
participants of training programs should show evidence of significant
advantage over a comparison group that does not receive the treatment
but is otherwise treated exactly the same as the trained group.
No studies have demonstrated that playing brain games cures or prevents Alzheimer’s disease or other forms of dementia.
Do not expect that cognitively challenging activities will work like
one-shot treatments or vaccines; there is little evidence that you can
do something once (or even for a concentrated period) and be inoculated
against the effects of aging in an enduring way. In all likelihood,
gains won’t last long after you stop the challenge.
In summary: We object to the claim that brain games offer
consumers a scientifically grounded avenue to reduce or reverse
cognitive decline when there is no compelling scientific evidence to
date that they do. The promise of a magic bullet detracts from the best
evidence to date, which is that cognitive health in old age reflects the
long-term effects of healthy, engaged lifestyles. In the judgment of
the signatories, exaggerated and misleading claims exploit the anxiety
of older adults about impending cognitive decline. We encourage
continued careful research and validation in this field.
Of course some research says that brain training does not work to be followed by the ones that disagree. Which way does your doctor fall? Sounds like you are going to have to do this on your own. Be careful out there, this could be dangerous. http://sharpbrains.com/solving-the-brain-fitness-puzzle-is-the-key-to-self-empowered-aging/
As the concept of brain fitness (or, the brain’s ability to
function efficiently and effectively in personal and professional
life) goes mainstream, the proliferation of scientific findings,
media reports, and commercial claims is generating much noise and
confusion. Knowing what to believe and what to do presents a
real-life puzzle, leading many people to either inaction or toward a
focus on the wrong priorities.
Click to view and download article as a PDF document.
This past October, sixty-nine scientists, convened by the
Stanford Center on Longevity, released an announcement stating that
there is a scientific consensus that brain training does not work
(Allaire et al., 2014). By December, 127 scientists worldwide had
signed another statement, challenging the previous “consensus”
and supporting the value of brain training (Alescio-Lautier et
al., 2014).
The problem here is not seeing the forest for the trees.
Eighty-three percent of more than 3,000 early adopters surveyed by the
independent market research firm SharpBrains (which I co-founded)
agreed that “adults of all ages should take charge of their own brain
fitness, without waiting for their doctors to tell them to”
(Fernandez et al., 2013). When we conducted in-depth focus groups and
interviews with respondents, the main question many had was not what
has perfect science behind, but what has better science than the
other things people are doing—solving crossword puzzle number one
million and one, taking ‘brain supplements,’ or doing nothing at
all until depression or dementia hits home.
And the unequivocal answer to that question, based upon the most
authoritative systematic reviews of the evidence conducted to
date (The Government Office for Science, 2008; AHRQ, 2010), is a
resounding yes—one thing does work better than most common alternatives. The challenge is that “thing” is different for everyone.
Well, well, I can't see any real downside of trying to challenge your brain to prevent cognitive decline even if the brain training industry overhypes the results. Because there seems to be no scientific consensus on how to prevent cognitive decline, that just means once again YOU will need to research and come up with your own solutions. Just like you had to do for stroke rehab. It's a wonder that neurologists can even look any patient in the eye and tell them, 'We have nothing proven to help you'. YOU ARE ON YOUR OWN; DEAL WITH IT. http://longevity3.stanford.edu/blog/2014/10/15/the-consensus-on-the-brain-training-industry-from-the-scientific-community-2/
So if brain training games do not work, what exactly is your doctor prescribing to prevent your cognitive decline post-stroke? http://longevity3.stanford.edu/blog/2014/10/15/the-consensus-on-the-brain-training-industry-from-the-scientific-community-2/
One line from there: However at this point it is not appropriate to conclude that
training-induced changes go significantly beyond the learned skills,
that they affect broad abilities with real-world relevance, or that they
generally promote “brain health”.
And post-stroke your cognitive abilities have probably taken a massive hit. You should expect your doctor to have protocols to address any cognitive decline. But they won't, so you will need to self-prescribe your own cognitive training even though such self-prescribing is extremely dangerous and likely to result in your death. You are going to die anyway so what the hell. http://www.cnn.com/2014/09/09/health/brain-training-apps/index.html
Older adults who underwent a
brief course of brain exercises saw improvements in reasoning skills and
processing speed that could be detected as long as 10 years after the
course ended, according to results from the largest study ever on
cognitive training.
The
findings, published on Monday in the Journal of the American Geriatrics
Society, offer welcome news in the search for ways to keep the mind
sharp as 76 million baby boomers in the United States advance into old
age.
The federally sponsored
trial of almost 3,000 older adults, called the Advanced Cognitive
Training for Independent and Vital Elderly study, or ACTIVE, looked at
how three brain training programs - focusing on processing speed, memory
and reasoning ability - affected cognitively normal adults as they
aged.
Numerous recent studies seem to
provide evidence for the general intellectual benefits of working memory
training. In reviews of the training literature, Shipstead, Redick, and
Engle (2010, 2012) argued that the field should treat recent results
with a critical eye. Many published working memory training studies
suffer from design limitations (no-contact control groups, single
measures of cognitive constructs), mixed results (transfer of training
gains to some tasks but not others, inconsistent transfer to the same
tasks across studies), and lack of theoretical grounding (identifying
the mechanisms responsible for observed transfer). The current study
compared young adults who received 20 sessions of practice on an
adaptive dual n-back program (working memory training group) or an
adaptive visual search program (active placebo-control group) with a
no-contact control group that received no practice. In addition, all
subjects completed pretest, midtest, and posttest sessions comprising
multiple measures of fluid intelligence, multitasking, working memory
capacity, crystallized intelligence, and perceptual speed. Despite
improvements on both the dual n-back and visual search tasks with
practice, and despite a high level of statistical power, there was no
positive transfer to any of the cognitive ability tests. We discuss
these results in the context of previous working memory training
research and address issues for future working memory training studies