Saturday, April 10, 2010

Hand and Brain - Neurophysiology and psychology of hand movements

Summary:

Optic Ataxia. pg 18/19
- one of the types is caused by parietal damage
- deficit in spacial vision - difficult to localize an object in visual space.
- gaze, misreaching, size of grasp.
- can identify objects but cannot pick up

Visual form agnosia
- ability to reach objects but not perceive them visually.

- There are different pathways for transforming visual information in to actions and perception.

Page 22 - Experiments to analyze the precision grasp mechanism. Objects chosen that would require contour analysis.

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