A neuropsychological perspective on the link between language and praxis in modern humans.

摘要: Hypotheses about the emergence of human cognitive abilities postulate strong evolutionary links between language and praxis, including possibility that was originally gestural. The present review considers functional neuroanatomical praxis in brain-damaged patients with aphasia and/or apraxia. neural systems supporting these functions are predominantly located left hemisphere. There many parallels action for recognition, imitation gestural communication suggesting they rely partially on large, common networks, differentially recruited depending nature task. However, this relationship is not unequivocal production understanding dependent context apraxic remains to be clarified aphasic patients. phonological, semantic syntactic levels seem share some resources praxic system. In conclusion, neuropsychological observations do allow support or rejection hypothesis may have constituted an link tool use language. Rather suggest complexity behaviour based large interconnected networks evolution specific properties within strategic areas cerebral