Rutgers-Newark researchers link early movement, brain d...( und is that the very first pattern in t...),Health

und is that the very first pattern in the somatosensory part of the cortex is under the supervised control of the skeletal muscle system. The physical layout basically constrains what kind of activity should occur in the somatosensory representation. Without movement, sensory stimuli will still get into the brain and produce some activity but those inputs remain in abstract space and cannot be related to the body or anything in the real world."

Additionally, the research may offer clues as to how the brain determines whether the world around us is three dimensional and how the brain measures metric distances between body parts. Without such information it is impossible for individuals to perform even a simple sensorimotor coordination task, such as scratching one's nose.

"It is our conclusion that the developing brain never learns to sense anything unless it is able to move the sensors in the environment," Dr. Buzsaki explains. "Think about what you would see if neither your eyes nor your body could have moved since you were born. You would not be able to tell what is closer or what is distant, whether an object is the same when it is near or far from you or when it is partially covered by something. It is the movement of the eyes and body that verifies those relationships."

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Contact: Peter Haigney
phaigney@andromeda.rutgers.edu
973-353-1663
Rutgers, the State University of New Jersey
20-Dec-2004

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