Sensorimotor Transformations in the Posterior Parietal Cortex

Abstract

The posterior parietal cortex (PPC) sits at the interface between sensory and motor areas and performs sensorimotor transformations. Current research is beginning to unravel the details of this transformation process. The first part of this chapter focuses on planning signals found in the PPC. Experiments show that the thought to reach can be read out from the parietal reach region of monkeys and used to control the position of a computer cursor without any reach movements being made by the monkeys. The second section reviews recent studies of coordinate tral15formations, which are an important aspect of sensorimotor transformations and involve the PPC.

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