29.518, FYI: Online Lecture, 2/8: Naming treatment in aphasia

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LINGUIST List: Vol-29-518. Tue Jan 30 2018. ISSN: 1069 - 4875.

Subject: 29.518, FYI:  Online Lecture, 2/8: Naming treatment in aphasia

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Date: Tue, 30 Jan 2018 18:17:19
From: Dirk Den Ouden [ouden at mailbox.sc.edu]
Subject: Online Lecture, 2/8: Naming treatment in aphasia

 
Thursday, February 8, 2pm EDT
https://global.gotomeeting.com/join/667426173
http://cstar.sc.edu/lecture-series/

Predictors and mechanisms of naming treatment response in aphasia

Michael Walsh Dickey, Ph.D.
University of Pittsburgh

Semantically-oriented naming treatments such as Semantic Feature Analysis
(Boyle & Coelho, 1995) can improve both word retrieval and broader
communicative function among people with aphasia. They also show evidence of
improving retrieval of not only treated words but untreated, related stimuli,
a critical goal of efficacious aphasia treatment (Kiran & Bassetto, 2008). 
However, there is considerable variability in how well individual PWA respond
to SFA treatment, both within and across studies (Boyle, 2010; Oh et al.,
2016). Understanding and characterizing this variability can identify
predictors of positive SFA treatment response, and it can also shed light on
the mechanisms behind such treatment response.  

This talk with present three complementary lines of evidence addressing these
issues.  In the first line of evidence, we will present results from a new
meta-analysis of SFA treatment studies (Quique et al., 2017), analyzing
session-level naming-probe performance from 12 published single-subject
studies involving 35 PWA. Results of this meta-analysis provide evidence for a
person-level predictor of treatment response, in particular improvement on
untreated items, as well as preliminary evidence regarding the dose-response
relationship for SFA: how much benefit may be expected from varying amounts of
SFA treatment? 

In the second line of evidence, we will examine which aspects of SFA treatment
contribute most strongly to positive treatment response (Gravier et al., in
press), drawing on data from a large-scale on-going group study of SFA
response. Results identify a promising practice-related predictor of SFA
response: the number of client-generated features during treatment appears to
be predictive of gains for both treated and untreated stimuli. In contrast,
the number of opportunities to retrieve the phonological wordform of treated
items (as well as number of hours of treatment received) appears to be only
weakly related to SFA treatment response.

In the third line of evidence, we will discuss person-level factors that may
determine SFA treatment response (Dickey et al., in prep), again drawing on
group-study data. Results indicate that pre-treatment semantic processing
ability (operationalized as s-weight; Foygel & Dell, 2000) is predictive of
improvement on both treated and untreated words, whereas pre-intervention
phonological processing ability (p-weight) is only predictive of improvements
for treated stimuli. Together with the findings regarding practice-related
predictors (Gravier et al., in press), these results suggest that SFA has its
positive effects by facilitating lexical-semantic aspects of word retrieval
processes (Foygel & Dell, 2000). This is consistent with both the theoretical
motivation of SFA (Boyle & Coleho, 1995) and contemporary models of word
production and its impairments in aphasia (e.g., Dell et al., 2006; Foygel &
Dell, 2000). 

This lecture will be held at the University of South Carolina:
Room #140, Discovery I, 915 Greene Street, Columbia, SC 29208
Date: Thursday, November 30, 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 info:
Dirk-Bart den Ouden, Ph.D.
Associate Professor of Communication Sciences and Disorders
University of South Carolina
Tel. 803-777-9241 (office) | Email: denouden at sc.edu
 



Linguistic Field(s): Clinical Linguistics
                     Neurolinguistics
                     Psycholinguistics
                     Semantics





 



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