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Examining Gesture Production in the Presence of Communication Challenges
Published on: January 26, 2024
Gesturing by speakers with aphasia: how does it compare?
Lisette Mol1, Emiel Krahmer, Mieke van de Sandt-Koenderman
1Tilburg Center for Cognition and Communication, Tilburg University, the Netherlands. l.mol@uvt.nl
Journal of Speech, Language, and Hearing Research : JSLHR
|January 1, 2013
Summary
In aphasia, gesture becomes less informative and uses fewer techniques as verbal language declines. However, gesture and speech production processes remain closely linked.
Area of Science:
- Neurolinguistics
- Cognitive Science
- Speech-Language Pathology
Background:
- Gesture production is crucial for communication, especially in individuals with language impairments.
- Understanding the relationship between gesture and verbal language in aphasia can reveal insights into cognitive processes.
Purpose of the Study:
- To investigate the semantic contribution of gesture in aphasia.
- To compare gesture use and depiction techniques between individuals with aphasia and controls.
- To determine if gesture can compensate for verbal language deficits.
Main Methods:
- Assessed gesture informativeness using forced-choice studies with video clips.
- Analyzed gesture depiction techniques in speakers with moderate and severe aphasia and controls.
- Compared gesture use with and without verbal communication allowance in controls.
Main Results:
- Gestures from individuals with severe aphasia were less informative than those with moderate aphasia.
- Individuals with severe aphasia used fewer gesture representation techniques compared to controls.
- Limb apraxia may influence gesture production in aphasia.
Conclusions:
- Gesture informativeness and complexity degrade alongside verbal language decline in aphasia.
- Despite partial independence, verbal language and co-speech gesture production are intricately linked.
- Gesture may serve a compensatory role, but its effectiveness diminishes with increasing aphasia severity.
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