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Abstract

Behavior

Examining Gesture Production in the Presence of Communication Challenges

Published: January 26th, 2024

DOI:

10.3791/66256

1Department of Speech, Language, and Hearing Sciences, University of Missouri

Abstract

Understanding why speakers modify their co-speech hand gestures when speaking to interlocutors provides valuable insight into how these gestures contribute to interpersonal communication in face-to-face and virtual contexts. The current protocols manipulate the visibility of speakers and their interlocutors in tandem in a face-to-face context to examine the impact of visibility on gesture production when communication is challenging. In these protocols, speakers complete tasks such as teaching words from an unfamiliar second language or recounting the events of cartoon vignettes to an interlocutor who is either another participant or a confederate. When performing these tasks, speakers are visible or non-visible to their interlocutor, and the speaker is visible or non-visible to the participant. In the word learning task, speakers and interlocutors visible to one another produce more representational gestures, which convey meaning via handshape and motion, and deictic (pointing) gestures than speakers and interlocutors who are not visible to one another. In the narrative retelling protocol, adolescents with autism spectrum disorder (ASD) produced more gestures when speaking to visible interlocutors than non-visible interlocutors. A major strength of the current protocol is its flexibility in terms of the tasks, populations, and gestures examined, and the current protocol can be implemented in videoconferencing as well as face-to-face contexts. Thus, the current protocol has the potential to advance the understanding of gesture production by elucidating its role in interpersonal communication in populations with communication challenges.

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