Multimodal communication in aphasia: perception and production of co-speech gestures during face-to-face conversation
- Preisig, Basil C. Perception and Eye Movement Laboratory, Department of Neurology and Clinical Research, University of Bern Inselspital, Bern, Switzerland - Donders Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
- Eggenberger, Noëmi Perception and Eye Movement Laboratory, Department of Neurology and Clinical Research, University of Bern Inselspital, Bern, Switzerland
- Cazzoli, Dario Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Switzerland
- Nyffeler, Thomas Perception and Eye Movement Laboratory, Department of Neurology and Clinical Research, University of Bern Inselspital, Bern, Switzerland - Center of Neurology and Neurorehabilitation, Luzerner Kantonsspital, Luzern, Switzerland
- Gutbrod, Klemens University Neurorehabilitation Clinics, Department of Neurology, University of Bern Inselspital, Bern, Switzerland
- Annoni, Jean-Marie Neurology Unit, Laboratory for Cognitive and Neurological Sciences, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland
- Meichtry, Jurka R. Perception and Eye Movement Laboratory, Department of Neurology and Clinical Research, University of Bern Inselspital, Bern, Switzerland - University Neurorehabilitation Clinics, Department of Neurology, University of Bern Inselspital, Bern, Switzerland
- Nef, Tobias Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Switzerland
- Müri, René M. Perception and Eye Movement Laboratory, Department of Neurology and Clinical Research, University of Bern Inselspital, Bern, Switzerland - Gerontechnology and Rehabilitation Group, ARTORG Center for Biomedical Engineering Research, University of Bern, Switzerland - University Neurorehabilitation Clinics, Department of Neurology, University of Bern Inselspital, Bern, Switzerland
- 14.06.2018
Published in:
- Frontiers in Human Neuroscience. - 2018, vol. 12, p. 200
English
The role of nonverbal communication in patients with post-stroke language impairment (aphasia) is not yet fully understood. This study investigated how aphasic patients perceive and produce co-speech gestures during face-to-face interaction, and whether distinct brain lesions would predict the frequency of spontaneous co-speech gesturing. For this purpose, we recorded samples of conversations in patients with aphasia and healthy participants. Gesture perception was assessed by means of a head-mounted eye-tracking system, and the produced co-speech gestures were coded according to a linguistic classification system. The main results are that meaning-laden gestures (e.g., iconic gestures representing object shapes) are more likely to attract visual attention than meaningless hand movements, and that patients with aphasia are more likely to fixate co-speech gestures overall than healthy participants. This implies that patients with aphasia may benefit from the multimodal information provided by co-speech gestures. On the level of co-speech gesture production, we found that patients with damage to the anterior part of the arcuate fasciculus showed a higher frequency of meaning-laden gestures. This area lies in close vicinity to the premotor cortex and is considered to be important for speech production. This may suggest that the use of meaning-laden gestures depends on the integrity of patients’ speech production abilities.
- Faculty
- Faculté des sciences et de médecine
- Department
- Médecine 3ème année
- Language
-
- English
- Classification
- Biological sciences
- License
- License undefined
- Identifiers
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- RERO DOC 322922
- DOI 10.3389/fnhum.2018.00200
- Persistent URL
- https://folia.unifr.ch/unifr/documents/307137
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