Long loop and spinal reflexes in man during preparation for intended directional hand movements

Abstract

Advance information about the direction of a movement to be performed in a reaction time (RT) paradigm is known (I) to improve performance, (2) not to result in any related change in monosynaptic spinal reflexes triggered at the time of the response signal, and (3) to trigger related changes in the activity of a number of neurons in the motor cortex.