Abstract
The interrelationships in the brain-stem among afferent impulses from anta-gonistic and symmetrical jaw muscles were studied by means of the microelectrode.
1. An acceleration of electrical activity of the trigeminal motor nucleus induced by stretching a jaw muscle was reciprocally inhibited by stretch of the antagonistic or symmetrical muscle.
2. These reciprocal inhibitory responses were not observed in the mesencephalic trigeminal nucleus.
