A pitch glide activates an intermediate response between auditory N1 and mismatch negativity

PITCH glides of a continuous tone elicit auditory N1-like responses. Howeve r, their characteristics have not well been investigated, and it remained u nclear whether the response is an auditory true N1 or the mismatch negativi ty (MMN). We found here that a rapid pitch glide activates almost the same response as a true N1. On the contrary, as the rate of the pitch glide decr eases, the response continuously varies the characteristics from true N1 to MMN. This suggests that there would exist intermediate responses between a uditory N1 and MMN. NeuroReport 10:2909-1912 (C) 1999 Lippincott Williams & Wilkins.