ENVELOPE SYNCHRONY PERCEPTION

这项研究的目的是为了更好地了解 对复杂听觉刺激的感知。 目前的目标是 研究计划是研究时间同步的可检测性 用于宽带刺激。 目标是确定 调节同步检测的机制，并且应用该机制 自然发生的声音的感知， as speech语音and music音乐. 实验范式要求， 听众区分同时呈现的 具有同步包络或 异步的 三个实验操作允许 确定歧视机制所在地。 (1)噪音屏蔽 明智地选择面具将防止 侦听器提取有关同步的信息 频率区域以外的那些包含实验 乐队. (2)双耳两分同步感知。 介绍乐队 不同耳朵的噪音将阻止听众依赖于 关于同步的信息的外围交互。 掩蔽实验和双耳两分实验共同表明， 同步检测是否取决于 从独立的临界带提取的信息，而不是 从单个关键频带提取的信息。 （三）、 双耳分 面具 呈现不同的面具给不同的人的效果 耳朵将指示负责的机制的轨迹 相对于双耳听觉系统的同步检测。 检查包络同步的检测提供了 有机会检查周边听觉过程和更多 全球中央听觉过程。 基本信息 关于这将导致的时间听觉过程， 学习计划可为诊断和治疗提供依据 听觉障碍的治疗方法

The objective of this research is to better understand the perception of complex auditory stimuli. The aim of the present research plan is to study the detectability of temporal synchrony for broad-band stimuli. The goal is to determine the locus of the mechanism(s) that mediate synchrony detection, and to apply that information to the perception of naturally occurring sounds such as speech and music. The experimental paradigm requires that listeners discriminate between simultaneously presented bands of noise that have envelopes that are either synchronous or asynchronous. Three experimental manipulations allow the determination of the locus of the discrimination mechanism(s). (1) Noise Masking. Judiciously chosen maskers will prevent listeners from extracting information about synchrony from frequency regions other than those containing the experimental bands. (2) Dichotic Synchrony Perception. Presenting the bands of noise to different ears will prevent listeners from relying on peripheral interactions for information concerning synchrony. Together, the masking and dichotic experiments will indicate whether synchrony detection depends on the comparison of information extracted from independent critical bands rather than information extracted from a single critical band. (3). Dichotic Masking. The effect of presenting different maskers to different ears will indicate the locus of the mechanism responsible for synchrony detection relative to the binaural auditory system. Examining the detection of envelope synchrony affords an opportunity to examine both peripheral auditory processes and more global central auditory processes. The basic information concerning temporal auditory processes that will result from this plan of study may provide a basis for the diagnosis and treatment for auditory impairment.