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:http://oc1dean.blogspot.com/2010/11/my-background-story_8.html

Tuesday, February 28, 2017

Transcranial Direct Current Stimulation in Poststroke Aphasia Recovery

Word salad or weasal words, nothing on a protocol used for this intervention.  Useless.
http://stroke.ahajournals.org/content/48/3/820?etoc=
Susan Wortman-Jutt, Dylan J. Edwards
This article requires a subscription to view the full text. If you have a subscription you may use the login form below to view the article. Access to this article can also be purchased.

Introduction

Transcranial direct current stimulation (tDCS), a form of noninvasive brain stimulation originally studied for its effect on motor limb physiology,1 has been investigated for its use in the treatment of aphasia since 2008.2–3 The experimental use of tDCS for aphasia, however, began differently from those paradigms established for poststroke motor recovery, both conceptually and in method. Not only is aphasia research a relative newcomer to the field of tDCS experimentation, it has thus far been somewhat of an outlier in its limited use of tDCS autonomously.
Theoretically understood to be vastly more complex than our intricate motor systems, cortical language representation has most recently been conceptualized as a dual stream, diffuse network,46 with language processing subcomponents evolved from nonlinguistic primates.7,8 In the dual stream model, human language functions are lateralized primarily in the left hemisphere, with Broca’s area comprising the left complement of a bilateral dorsal stream network devoted to naming and articulation. Conversely, Wernicke’s area constitutes the origin of a bilateral ventral stream in which semantic meaning is attached to components of speech sounds.6,921 Additional activation in homologous right hemisphere language areas seems to be determined by lexical necessity, with increased articulatory demands activated within the bilateral dorsal stream and the decoding of unfamiliar words activated in the bilateral ventral stream network.9 Complex as it may be to optimally prime the motor cortex for poststroke limb rehabilitation using tDCS, it may be considered even more challenging to modulate the cortical plexus which encodes and produces language in all of its richness. The theoretical mechanisms of brain activation during tDCS protocols suggest that tDCS primes the brain for enhanced outcomes in behavioral therapies,22 which may have led to the appeal of combining methods concurrently. The …
View Full Text

No comments:

Post a Comment