Classification of inferior collicular neurones of bats in terms of responses to pure tones, frequency-modulated sounds and noise bursts

摘要

1. Single unit activity in the inferior colliculus of bats was studied with pure tones, FM (frequency-modulated) sounds and noise bursts which are the most basic three components of the complex sounds produced by many different animals including man. Neurones were divided into three groups, (i) `generalized' units responding to all three elements, (ii) `deaf' units responding to two out of the three and (iii) `specialized' units responding to only one of the three. Each of these was divided into three subgroups.