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Summary: 8170 Making a plan of action
8215 Starvation enhances chemotherapy
8221 Nanocomposite materials
8280 Do the twist
NEUROSCIENCE
Making a plan of action
Were the brain to rely completely on sensory feedback to direct
movement during activities like reaching, primate arms would
move infuriatingly slowly. Grant Mulliken et al. investigated
how a region of the brain de-
velops a representation of arm
movement that overcomes the
long sensory feedback delays.
The posterior parietal cortex
(PPC) area of the brain serves
as a functional bridge between
the areas that sense input, like
visual cues, and those that
direct motor function. Because
sensory input alone is gener-
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