Directional sensitivity of neurons in the lumbar spinal cord to neck rotation

A combination of roll and pitch stimuli was applied to the head of decerebrate, labyrinthectomized cats to determine the direction of maximal sensitivity ('vector') of lumbar neurons to neck rotation. Some neurons were best modulated by pitch, others by roll or by intermediate stimulus planes. Among modulated neurons were propriospinal neurons activated antidromically from the lumbosacral enlargement.