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1580 Physiology

Like other sensory systems, the somatosensory system has a descending component that functions to regulate the overall sensitivity of the system. Which of the following selections best describes the function of the coicofugal signals transmitted from the somatosensory coex downward to the thalamus and dorsal column nuclei?

AIncrease or decrease the perception of signal intensity
BDecrease the ability to detect body position sense
CRemove the thalamus from the processing of somatosensory signals
DAllow ascending information to bypass the nucleus cuneatus and gracilis
Physiology
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