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Spatial representations for visually-guided movements in parietal damaged patients| old_uid | 2659 |
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| title | Spatial representations for visually-guided movements in parietal damaged patients |
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| start_date | 2007/04/19 |
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| schedule | 16h |
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| online | no |
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| details | Invitation : Laure Pisella |
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| summary | Reaching a viewed object with the hand requires a transformation between the object’s location (represented relative to gaze – the line of sight) and the motor command (represented relative to the shoulder). This representation has to be updated whenever gaze moves. In addition, the hand position must be compared to the objects location to produce an accurate movement. I studied visually-guided reaching in patients with damage to the posterior parietal cortex and in intact subjects to gain insight into the role of the parietal cortex in the above processes. I will show that the parietal cortex is essential in the visuomotor transformation – particularly with rapid movements – and in the comparison between hand and target location, but is not necessary for updating target locations due to changes in gaze. |
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| responsibles | Farnè |
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