28.4957, FYI: Online Lecture: ''Language Mapping in Aphasia''

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LINGUIST List: Vol-28-4957. Mon Nov 27 2017. ISSN: 1069 - 4875.

Subject: 28.4957, FYI: Online Lecture: ''Language Mapping in Aphasia''

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Date: Mon, 27 Nov 2017 15:33:18
From: Dirk Den Ouden [denouden at sc.edu]
Subject: Online Lecture: ''Language Mapping in Aphasia''

 
Thursday, November 30th, 2pm EDT
https://global.gotomeeting.com/join/667426173
http://cstar.sc.edu/lecture-series/

Language mapping in aphasia

Stephen M. Wilson, PhD
Vanderbilt University

Research on neuroplasticity in recovery from aphasia depends on the ability to
identify language areas of the brain in individuals with aphasia. However,
tasks commonly used to engage language processing in people with aphasia, such
as narrative comprehension and picture naming, are limited in terms of
reliability (test-retest reproducibility) and validity (identification of
language regions, and not other regions). On the other hand, paradigms such as
semantic decision that are effective in identifying language regions in people
without aphasia can be prohibitively challenging for people with aphasia. This
talk describes a new semantic matching paradigm that uses an adaptive
staircase procedure to present individuals with stimuli that are challenging
yet within their competence, so that language processing can be fully engaged
in people with and without language impairments. The feasibility, reliability
and validity of the adaptive semantic matching paradigm were investigated in
sixteen individuals with chronic post-stroke aphasia and fourteen
neurologically normal participants, in comparison to narrative comprehension
and picture naming paradigms. All participants succeeded in learning and
performing the semantic paradigm. Test-retest reproducibility of the semantic
paradigm in people with aphasia was excellent, and was superior to the other
two paradigms. The semantic paradigm revealed known features of typical
language organization (lateralization; frontal and temporal regions) more
consistently in neurologically normal individuals than the other two
paradigms, constituting evidence for validity. In sum, the adaptive semantic
matching paradigm is a feasible, reliable and valid method for mapping
language regions in people with aphasia. 

This lecture will be held at the University of South Carolina:
Room #140, Discovery I, 915 Greene Street, Columbia, SC 29208
Date: Thursday, November 30th, Time: 2pm – 3pm EDT
The event will be catered!

The lecture can also be followed online from your computer, tablet or
smartphone, via the following GoToMeeting address (no password required):
https://global.gotomeeting.com/join/667426173

You can also dial in using your phone. 
United States : +1 (872) 240-3412
Access Code: 667-426-173
First GoToMeeting? Try a test session: http://help.citrix.com/getready

For more information, please contact:

Dirk-Bart den Ouden, Ph.D.
Associate Professor, Communication Sciences and Disorders
Neurolinguistics Lab | http://www.mccauslandcenter.sc.edu/den_ouden/
University of South Carolina | Arnold School of Public Health
Discovery I Building, Office 202 C
915 Greene Street, Columbia, SC 29208
Tel. 803-777-9241 (office) | Email: denouden at sc.edu
 



Linguistic Field(s): Cognitive Science
                     Neurolinguistics
                     Psycholinguistics
                     Semantics





 



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