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  Electrophysiological and kinematic correlates of communicative intent in the planning and production of pointing gestures and speech

Peeters, D., Chu, M., Holler, J., Hagoort, P., & Ozyurek, A. (2015). Electrophysiological and kinematic correlates of communicative intent in the planning and production of pointing gestures and speech. Journal of Cognitive Neuroscience, 27(12), 2352-2368. doi:10.1162/jocn_a_00865.

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 Creators:
Peeters, David1, Author           
Chu, Mingyuan1, 2, Author           
Holler, Judith3, 4, 5, Author           
Hagoort, Peter1, 6, Author           
Ozyurek, Asli6, 7, 8, Author           
Affiliations:
1Neurobiology of Language Department, MPI for Psycholinguistics, Max Planck Society, Nijmegen, NL, ou_792551              
2University of Aberdeen, UK, ou_persistent22              
3Language and Cognition Department, MPI for Psycholinguistics, Max Planck Society, ou_792548              
4INTERACT, MPI for Psycholinguistics, Max Planck Society, Wundtlaan 1, 6525 XD Nijmegen, NL, ou_1863331              
5Communication in Social Interaction, Radboud University Nijmegen, External Organizations, ou_3055481              
6Radboud University Nijmegen, The Netherlands, ou_persistent22              
7Research Associates, MPI for Psycholinguistics, Max Planck Society, Wundtlaan 1, 6525 XD Nijmegen, NL, ou_2344700              
8Multimodal Language and Cognition, Radboud University Nijmegen, External Organizations, ou_3055480              

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 Abstract: In everyday human communication, we often express our communicative intentions by manually pointing out referents in the material world around us to an addressee, often in tight synchronization with referential speech. This study investigated whether and how the kinematic form of index finger pointing gestures is shaped by the gesturer's communicative intentions and how this is modulated by the presence of concurrently produced speech. Furthermore, we explored the neural mechanisms underpinning the planning of communicative pointing gestures and speech. Two experiments were carried out in which participants pointed at referents for an addressee while the informativeness of their gestures and speech was varied. Kinematic and electrophysiological data were recorded online. It was found that participants prolonged the duration of the stroke and poststroke hold phase of their gesture to be more communicative, in particular when the gesture was carrying the main informational burden in their multimodal utterance. Frontal and P300 effects in the ERPs suggested the importance of intentional and modality-independent attentional mechanisms during the planning phase of informative pointing gestures. These findings contribute to a better understanding of the complex interplay between action, attention, intention, and language in the production of pointing gestures, a communicative act core to human interaction.

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Language(s): eng - English
 Dates: 20152015-10-30
 Publication Status: Published online
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 Rev. Type: Peer
 Identifiers: DOI: 10.1162/jocn_a_00865
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Title: Journal of Cognitive Neuroscience
Source Genre: Journal
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Publ. Info: Cambridge, MA : MIT Press Journals
Pages: - Volume / Issue: 27 (12) Sequence Number: - Start / End Page: 2352 - 2368 Identifier: ISSN: 0898-929X
CoNE: https://pure.mpg.de/cone/journals/resource/991042752752726