Tympanic Muscles and Control of Auditory Input during Arousal

Science  06 May 1960:
Vol. 131, Issue 3410, pp. 1371-1372
DOI: 10.1126/science.131.3410.1371


A reticular stimulation producing a powerful arousal reaction decreases the potential in the cochlear nucleus evoked by a click. This reduction results from the contraction of the middle ear muscles, which lessens the pressure transmitted to the cochlea, and is not due to a direct neural inhibitory effect at the level of the first synapse of the auditory pathway.