表征改变相位时长的感知效应：是位置音高吗？

文献信息

中文摘要

人工耳蜗刺激的相位时长在临床上可以变化，以确保足够的响度增长，同时避免电流源顺应性限制。这些操作通常在不考虑除响度之外的任何可能感知变化的情况下进行。然而，文献中有限的报告表明，改变相位时长也可能影响音高。众所周知，多个感知维度的变化可能被报告为音高。在本研究中，系统地改变了相位时长和电极，并使用多维标度范式来测试相位时长变化引起的感知变化在观察时是否位于位置音高维度上。

英文摘要

Cochlear implant stimulus phase duration can vary clinically to ensure adequate loudness growth while avoiding current-source compliance limits. These manipulations are typically done without consideration of any possible perceptual changes beyond loudness. However, limited reports in the literature suggest that changing phase duration can also impact pitch. It is well established that changes in multiple perceptual dimensions may be reported as pitch. In this study, phase duration and electrodes were systematically varied, and a multidimensional scaling paradigm was used to test whether perceptual changes caused by changes in phase duration lie along the dimension of place-pitch when observed.