Deans' stroke musings

Changing stroke rehab and research worldwide now.Time is Brain!Just think of all the trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 493 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:

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's quite disgusting that this information is not available from every stroke association and doctors group.
My back ground story is here:

Tuesday, December 13, 2016

Yale Neuroscientists Can Now Determine Human Intelligence Through Brain Scans

We should have this followed up with stroke survivors as subjects. Then your doctor could objectively determine what cognitive training protocols should be prescribed.
Do you feel like you were born to do something? There is just a certain skill like playing an instrument or sport, or a certain subject, like math, which you naturally excel in? It might have to do with the way your brain is wired. Different people have different aptitudes. The repositories for these lie in different parts of the brain and, as scientists are learning more and more, in the connectome or the connections between regions.
Today, neuroscientists can determine one’s intelligence through a brain scan, as sci-fi as that sounds. Not only that, it’s only a matter of time before they are able to tell each individual’s set of aptitudes and shortcomings, simply from scanning their brain. Researchers at Yale led the study. They interpreted intelligence in this case as abstract reasoning, also known as fluid intelligence. This is the ability to recognize patterns, solve problems, and identify relationships. Fluid intelligence is known to be a consistent predictor of academic performance. Yet, abstract reasoning is difficult to teach, and standardized tests often miss it.
Researchers in this study could accurately predict how a participant would do on a certain test by scanning their brain with an fMRI. 126 participants, all a part of the Human Connectome Project, were recruited. The Human Connectome Project is the mapping of all the connections inside the brain, to get a better understanding of how the wiring works and what it means for things like intellect, the emotions, and more. For this study, researchers at Yale put participants through a series of different tests to assess memory, intelligence, motor skills, and abstract thinking.
They were able to map the connectivity in 268 individual brain regions. Investigators could tell how strong the connections were, how active, and how activity was coordinated between regions. Each person’s connectome was as unique as their fingerprint, scientists found. They could identify one participant from another with 99% accuracy, from their brain scan. Yale researchers could also tell whether the person was engaged in the assessment they were taking or if they were aloof about it.
Emily Finn was a grad student and co-author of this study. She said, “The more certain regions are talking to one another, the better you’re able to process information quickly and make inferences.” Mostly, fluid intelligence had to do with the connections between the frontal and parietal lobes. The stronger and swifter the communication between these two regions, the better one’s score in the abstract thinking test. These are some of the latest regions to have evolved in the brain. They house the higher level functions, such as memory and language, which are essentially what make us human.

Axonal nerve fibers in the real brain, by jgmarcelino from Newcastle upon Tyne, UK (Webs'r'us  Uploaded by CFCF) [CC BY 2.0, via Wikimedia Commons
Yale researchers believe that by learning more about the human connectome, they might find novel treatments for psychiatric disorders. Things like schizophrenia vary widely from one patient to the next. By finding what’s unique to a particular patient, a psychiatrist can tailor treatment to suit their needs. Understanding one’s connectome could give insight into how the disease progresses, and if and how the patient might respond to certain therapies or medications. But there are other uses which we may or may not feel comfortable with.
For instance, your child could have their brain scanned to track them at school, according to study author Todd Constable. It might be used to say whether or not a candidate is qualified for a job or should pursue a certain career. Brain scans could tell who might be prone to addiction, or what sort of learning environment a student might flourish in. School curriculum could even be changed on a day-to-day basis to fit student’s needs. And the dreaded SAT might even be shelved too, in favor of a simple brain scan.
Peter Bandettini is the chief of functional imaging methods at the National Institute of Mental Health (NIMH). He told PBS that barring ethical issues, brain scans could someday be used by employers to tell which potential candidate possesses desirable aptitudes or personality traits, be they diligent, hardworking, or what-have-you. Richard Haier, an intelligence researcher at UC Irvine, foresees prison officials using such scans on inmates to tell who might be prone to violence.
We may even someday learn how to augment human intelligence from studies such as this. It’s important to remember that intelligence research is still in its infancy. Yet, according to Yale scientists, we are moving in this direction.
Some fear a Minority Report-like misuse of said technology. Neuroethicist Laura Cabrera at Michigan State University enumerated for WIRED her concerns. What if insurance companies denied coverage based on such a scan, due to a tendency toward addiction or some other predisposition. Of course, just because someone has a higher risk of something, doesn’t mean they will develop it. Without proper guidelines in place and oversight, we could quickly see banks, schools, universities, and other institutions taking part in “neuro-discrimination.” Strong laws will have to be put in place to defend against misuse.
There are limits to what we now know about the human connectome that have yet to be overcome. For instance, we can only look at the connections as they are now. We don’t know how they form or develop over time. And fluid intelligence is merely one type out of several different kinds. We are still far from applying such technology in the real world. But the potential is there.
To learn more about the Human Connectome Project, click here:

No comments:

Post a Comment