演題詳細

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Symposia

頭頂葉における空間および非空間表象
Spatial and Non-spatial Codings in the Parietal Cortex

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開催日
2010年09月02日(木)
時 間
08:30 - 11:00
会 場
Room 2
Chairperson(s)
Michael E. Goldberg (Columbia University College of Physicians and Surgeons)
入來 篤史 / Atsushi Iriki (理化学研究所 BSI 象徴概念発達研究チーム / Lab. for Symbolic Cognitive Development, RIKEN BSI)

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The role of the parietal cortex in movement intention and awareness

演題番号 : S1-2-1-4

Angela Sirigu:1 

1:Center for Cognitive Neuroscience, CNRS 

 

I will focus on the role of parietal and premotor regions for movement representation and movement prediction. I will present findings obtained in patients with selective lesions in the parietal or premotor cortex using task requiring "preparing to move" or "preparing to observe another's movement". I will also show how direct cortical stimulation (during surgery for the removal of a tumor) of the inferior parietal regions produces the 'desire to move' or perception of movement even when no motor act actually occurred, as shown by EMG recording. The opposite patterns will be described during stimulation of the premotor cortex where patients did in fact move but the experience of movement didn't reach consciousness. I will argue that the inferior parietal regions play a key role in anticipating the future states of our own movements and for bringing them to awareness.

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