STIMULUS CORRELATES OF WAVE ACTIVITY IN THE SUPERIOR-OLIVARY COMPLEX OF THE CAT.

Wave activity in response to tonal stimuli was recorded in the superior‐olivary complex of anesthetized cats. A rapid and a slow phase of adaptation were observed. The intensity‐amplitude curves were found to approximate power functions, with an average exponent of 0.34 for an 800‐cps stimulus. The intensity‐amplitude functions for stimuli between 200 and 2400 cps tended to form families of curves with maximum amplitudes between 500 and 1000 cps. Some factors inducing variability were discussed in detail. Comparison of superior‐olive activity with eighth‐nerve activity as described in published reports suggested that auditory information is transmitted through the cochlear nuclei to accessory nucleus in essentially an unmodified form.