探討光譜時間調變辨識的底層機制

// Probing the Underlying Mechanisms of Spectro-Temporal Modulation Discrimination

本研究探討聽者如何分辨向上與向下移動的頻譜-時間調變（STM）｜發現當背景為向下移動STM時，對向上目標的感知靈敏度顯著降低，顯示方向特異性干擾｜模型分析強調相位敏感度重要性，但無法完全解釋個體差異，提升對STM辨識機制的理解並驗證反向相關在聽覺研究的價值。

// This study investigated how listeners discriminate upward- and downward-moving spectro-temporal modulations (STMs) using a reverse-correlation paradigm with different surround sound conditions. Results showed listeners mainly focused on upward-moving targets, with selective sensitivity reduction when surrounded by downward-moving STMs, indicating orientation-specific interference. Modulation filterbank models supported these findings, highlighting the importance of phase sensitivity, but could not fully explain individual variability in perception. The study advances understanding of STM discrimination mechanisms and demonstrates the value of reverse-correlation methods in auditory research.

Published 2026年7月1日