I really don't give a shit about predictions, I want to know what the solution is to fix the aphasia problem. It's really quite simple, solve the damned stroke problems, don't just describe them.
http://journal.frontiersin.org/Journal/10.3389/fnhum.2014.00845/full?utm_source=newsletter&
Alexandra Basilakos1*,
Paul T. Fillmore1,
Chris Rorden2,
Dazhou Guo1,
Leonardo Bonilha3 and
Julius Fridriksson1
- 1The Aphasia Lab, Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC, USA
- 2Department of Psychology, University of South Carolina, Columbia, SC, USA
- 3Department of Neurosciences, Medical University of South Carolina, Charleston, SC, USA
Recently, two different white matter regions that support speech
fluency have been identified: the aslant tract and the anterior segment
of the arcuate fasciculus (ASAF). The role of the ASAF was demonstrated
in patients with post-stroke aphasia, while the role of the aslant tract
shown in primary progressive aphasia. Regional white matter integrity
appears to be crucial for speech production; however, the degree that
each region exerts an independent influence on speech fluency is
unclear. Furthermore, it is not yet defined if damage to both white
matter regions influences speech in the context of the same neural
mechanism (stroke-induced aphasia). This study assessed the relationship
between speech fluency and quantitative integrity of the aslant region
and the ASAF. It also explored the relationship between speech fluency
and other white matter regions underlying classic cortical language
areas such as the uncinate fasciculus and the inferior longitudinal
fasciculus (ILF). Damage to these regions, except the ILF, was
associated with speech fluency, suggesting synergistic association of
these regions with speech fluency in post-stroke aphasia. These
observations support the theory that speech fluency requires the
complex, orchestrated activity between a network of pre-motor,
secondary, and tertiary associative cortices, supported in turn by
regional white matter integrity.
More at link.
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