Cerebral correlates of imitation of intransitive gestures: An integrative review of neuroimaging data and brain lesion studies - Archive ouverte HAL Access content directly
Journal Articles Neuroscience and Biobehavioral Reviews Year : 2018

Cerebral correlates of imitation of intransitive gestures: An integrative review of neuroimaging data and brain lesion studies

Abstract

The aim of the present review is to investigate the cerebral correlates, more particularly the role of the parietal lobe, when imitating intransitive gestures, a task highly sensitive to apraxic errors. By providing an integrative review of functional imaging and brain lesion studies, we focused our attention on the meaning of gestures (meaningful and meaningless) and the body parts (finger and hand). We found that imitation of intransitive gestures is relying upon a bilateral brain network including fronto-parietal areas irrespective of meaning or body parts. Moreover, we observed that while imitation of meaningful and meaningless gestures is predominantly impacted following left parietal lesions, more brain areas are en- gaged during meaningless gesture imitation. Concerning body parts, whereas imitation of hand postures is re- lying upon the left parietal lobe (angular gyrus), imitation of finger postures is more likely to be impaired following lesions in the frontal lobe, insula and basal ganglia. These results question neuropsychological theories on apraxia and open promising avenues for a better un- derstanding of apraxia.
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Dates and versions

hal-02392360 , version 1 (31-10-2022)

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Mathieu Lesourd, François Osiurak, Josselin Baumard, Angela Bartolo, Tim Vanbellingen, et al.. Cerebral correlates of imitation of intransitive gestures: An integrative review of neuroimaging data and brain lesion studies. Neuroscience and Biobehavioral Reviews, 2018, 95, pp.44-60. ⟨10.1016/j.neubiorev.2018.07.019⟩. ⟨hal-02392360⟩
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