Movement, Confusion, and Orienting in Frontal Cortices

Abstract

In this issue, two studies, by Ehrlich etal. and Hill etal., address the role of the frontal motor cortices in behavior of the rat and suggest a potential role for this structure in high-level control of diverse behaviors. Hill etal. show that motor cortical neurons predict whisker movements even without sensory feedback and that their activity reflects efferent control. Surprisingly, Ehrlich etal. report the participation of this same cortical region in the preparation and execution of orienting behaviors.