Lack of conscious recognition of one's own actions in a haptically deafferented patient

被引:60
作者
Fourneret, P
Paillard, J
Lamarre, Y
Cole, J
Jeannerod, M
机构
[1] Inst Cognit Sci, F-69675 Bron, France
[2] Lab Neurobiol Mouvements, F-13402 Marseille 20, France
[3] Univ Montreal, Montreal, PQ H3C 3J7, Canada
[4] Poole Hosp Trust, Dept Clin Neurophysiol, Poole BH15 2JB, Dorset, England
关键词
awareness of action; deafferented patient; visuo-motor conflict;
D O I
10.1097/00001756-200203250-00036
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
How do we become aware of our own actions? This classical question is still a matter of debate: does consciousness depend on central efferent signals or derive from peripheral information? In this paper, we had the opportunity to study a haptically deafferented patient using a well-tested experimental paradigm where a cognitive conflict is produced between motor intention, proprioception and visual feedback. Our results show that the patient was able to solve the conflict and to generate accurate movements to a target in the absence of proprioceptive feedback and with very limited visual feedback from her movements. Yet, she could not report any conscious perception of the conflict and showed no conscious knowledge of her actual performance. We suggest that information derived from efferent processes cannot in themselves be a source for conscious experience about our own actions.
引用
收藏
页码:541 / 547
页数:7
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