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A Comparison of Coverbal Gesture Use in Oral Discourse Among Speakers With Fluent and Nonfluent Aphasia.

Title: A Comparison of Coverbal Gesture Use in Oral Discourse Among Speakers With Fluent and Nonfluent Aphasia.
Authors: Pak-Hin Kong, Anthony1 antkong@ucf.edu
Law, Sam-Po2
Wan-Chi Chak, Gigi2
Source: Journal of Speech, Language & Hearing Research. Jul2017, Vol. 60 Issue 7, p2031-2046. 16p. 11 Charts.
Document Type: Article
Subject Terms: SPEECH & gesture -- Research
APHASIC persons
ORAL communication
DISCOURSE
CANTONESE dialects
CHINESE language -- Lexicology
SENTENCES (Grammar)
LANGUAGE & languages -- Ability
APHASIA
COMPARATIVE studies
LANGUAGE & languages
LINGUISTICS
NONVERBAL communication
PROBABILITY theory
RESEARCH -- Evaluation
FINANCING of research
SAMPLING (Statistics)
STATISTICS
VARIABLES (Mathematics)
VIDEO recording
DATA analysis
MULTIPLE regression analysis
NARRATIVES
INTER-observer reliability
MEDICAL coding
KRUSKAL-Wallis Test
NAICS/Industry Codes: 541910 Marketing Research and Public Opinion Polling
Abstract: Purpose: Coverbal gesture use, which is affected by the presence and degree of aphasia, can be culturally specific. The purpose of this study was to compare gesture use among Cantonese-speaking individuals: 23 neurologically healthy speakers, 23 speakers with fluent aphasia, and 21 speakers with nonfluent aphasia. Method: Multimedia data of discourse samples from these speakers were extracted from the Cantonese AphasiaBank. Gestures were independently annotated on their forms and functions to determine how gesturing rate and distribution of gestures differed across speaker groups. A multiple regression was conducted to determine the most predictive variable(s) for gesture-to-word ratio. Method: Multimedia data of discourse samples from these speakers were extracted from the Cantonese AphasiaBank. Gestures were independently annotated on their forms and functions to determine how gesturing rate and distribution of gestures differed across speaker groups. A multiple regression was conducted to determine the most predictive variable(s) for gesture-to-word ratio. Results: Although speakers with nonfluent aphasia gestured most frequently, the rate of gesture use in counterparts with fluent aphasia did not differ significantly from controls. Different patterns of gesture functions in the 3 speaker groups revealed that gesture plays a minor role in lexical retrieval whereas its role in enhancing communication dominates among the speakers with aphasia. The percentages of complete sentences and dysfluency strongly predicted the gesturing rate in aphasia. Conclusions: The current results supported the sketch model of language-gesture association. The relationship between gesture production and linguistic abilities and clinical implications for gesture-based language intervention for speakers with aphasia are also discussed. [ABSTRACT FROM AUTHOR]
(Copyright applies to all Abstracts.)
Author Affiliations: 1Department of Communication Sciences and Disorders, University of Central Florida, Orlando ; 2Division of Speech and Hearing Sciences, University of Hong Kong
ISSN: 1092-4388 (Sherpa/RoMEO, JCR)
PageCount: 2031-2047
volume: 60
issue: 7
issn: 10924388
pubdate: 2017
DOI: https://doi.org/10.1044/2017_JSLHR-L-16-0093
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