Burns E M
J Acoust Soc Am. 1982 Nov;72(5):1394-402. doi: 10.1121/1.388445.
Pitch-intensity functions were obtained in both ears of five normal-hearing subjects, together with measurements of binaural diplacusis as a function of intensity. The results show that pitch-intensity functions are often significantly different in the two ears of a given subject at a given frequency. Furthermore, for each subject and frequency condition tested, an intensity existed for which no significant diplacusis was found. For these conditions, therefore, binaural diplacusis as a function of intensity could be accounted for by the interaural differences in pitch-intensity functions. Forward-masking patterns (FMP's) as a function of intensity were also obtained in both ears of several subjects. The FMP's were compared with pitch-intensity functions, obtained for the same conditions, for evidence of a covariation in the direction of shifts in masking patterns as a function of intensity with the direction of pitch shifts as a function of intensity. No convincing evidence of such a covariation was found. The implications of the results of these experiments are discussed relative to the question of temporal versus tonotopic coding of pure-tone pitch.
在五名听力正常的受试者的双耳中获得了音高-强度函数,并测量了双耳复听作为强度的函数。结果表明,在给定频率下,给定受试者的双耳的音高-强度函数通常存在显著差异。此外,对于测试的每个受试者和频率条件,都存在一个强度,在该强度下未发现明显的双耳复听。因此,对于这些条件,双耳复听作为强度的函数可以由音高-强度函数的双耳差异来解释。还在几名受试者的双耳中获得了前掩蔽模式(FMP)作为强度的函数。将FMP与在相同条件下获得的音高-强度函数进行比较,以寻找掩蔽模式随强度变化的方向与音高随强度变化的方向之间存在协变的证据。未发现这种协变的令人信服的证据。相对于纯音音高的时间编码与音调编码问题,讨论了这些实验结果的含义。