STUDIES OF TONAL INTERACTIONS IN THE AUDITORY SYSTEM

该项目旨在阐明有关如何 复合物的组分（即，多频）音调相互作用， 猫的单个听觉神经纤维的反应。 主要的重点是（a） 研究“双音抑制”现象和（B）开发计算的 该方案利用放电速率、放电同步 和音调分量的抑制行为作为其输入，并提供 总排放率和时间结构的定量估计， 输出. 这是第三个也是最后一个获得资助的年度， （1）当抑制器由噪声带组成时的抑制行为 而不是一个音调，（B）抑制的加和性，（c）“生理性 脆弱性”的抑制，（d）比较前掩蔽和 抑制幅度的错误掩蔽措施，以及（e）测试 新开发的技术，用于预测对复杂音调的反应行为。

This project is aimed at elucidating details regarding the manner in which components of complex (i.e., multiple-frequency) tones interact to produce responses in single auditory nerve fibers of cats. The major thrusts are (a) to study the "two-tone suppression" phenomenon and (b) to develop a computational scheme which utilizes descriptions of discharge rate, discharge synchronization and suppression behavior of tonal components as its input and provides quantitative estimates of overall discharge rate and time structure as its output. Specific studies for this, the third and final funded year, include examination of (1) suppression behavior when the suppressor consists of a band of noise rather than a tone, (b) the additivity of suppression, (c) the "physiological vulnerability" of suppression, (d) the comparison of forward-masking and simultaneous-masking measures of suppression magnitude, and (e) the testing of a newly-developed technique for predicting response behavior to complex tones.