Gesture processing in left brain damaged patients and in children with autism

old_uid11290
titleGesture processing in left brain damaged patients and in children with autism
start_date2012/04/19
schedule11h30
onlineno
location_infosalle du conseil
summaryLimb apraxia is an acquired deficit in processing hand gestures, whereas limb dyspraxia refers to a delay in the development of gestural abilities. Praxis deficits can be detected through the assessment of different gesture types (ie, meaningful and meaningless) carried out in different modalities (ie, elicited by a verbal or visual command or by imitation). Recent cognitive models of praxis processing (Rothi et al. 1991; Cubelli et al. 2000) have been developed to account for the complexity of limb apraxia. Based on these cognitive models, we devised and administered a battery of tasks for the assessment of praxis abilities to a group of left-brain damaged patients and to individuals with autism. Results showed dissociations among gestures, suggesting that each gesture calls for specific cognitive skills. References Cubelli, R., Marchetti, C., Boscolo, G., & Della Sala, S. (2000). Cognition in action: Testing a model of limb apraxia. Brain and Cognition, 44, 144-165. Rothi, L. J., Ochipa, C., & Heilman, K. M. (1991). A cognitive neuropsychological model of limb praxis. Cognitive Neuropsychology, 8, 443-458.
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