Journal
NATURE NEUROSCIENCE
Volume 3, Issue 7, Pages 729-736Publisher
NATURE AMERICA INC
DOI: 10.1038/76694
Keywords
-
Categories
Ask authors/readers for more resources
We designed a protocol distinguishing between automatic and intentional motor reactions to changes in target location triggered at movement onset. In response to target jumps, but not to a similar change cued by a color switch, normal subjects often could not avoid automatically correcting fast aiming movements. This suggests that an 'automatic pilot' relying on spatial vision drives fast corrective arm movements that can escape intentional control. in a patient with a bilateral posterior parietal cortex (PPC) lesion, motor corrections could only be stow and deliberate. We propose that 'on-line' control is the most specific function of the PPC and that optic ataxia could result from a disruption of automatic hand guidance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available