AUDITORY DISCRIMINATION AND MASKING

研究的目的是为了更好地了解 感知复杂的听觉信号。 虽然之前的研究 集中在简单的刺激，如正弦波或噪音 爆发，本研究的目的是研究的能力， 分辨宽带声功率谱的变化 刺激。 我们的目标是利用我们已有的知识 获得关于简单刺激的知识，并将其应用于感知 这些更复杂的刺激。 具体而言，三个领域是 预定调查：1）预测问题--如何 复杂光谱变化的可探测性可以从 更简单的光谱变化的可探测性？ 2)类语音 刺激--谐波的光谱变化检测是否不同 和不和谐的复合体 3)动态光谱，时间是如何 光谱的变化影响检测光谱的能力 改变？ 理解复杂听觉的感知 刺激将促进对关系的理解 周边听觉过程和更复杂的中枢 例如对语言的感知。 它将有助于 提供合理依据所需的一些基本信息 用于诊断和治疗听觉障碍。

The objective of the research is to better understand the perception of complex auditory signals. While previous research has concentrated on simple stimuli such as sinusoids or noise bursts, the aim of the present research is to study the ability to discriminate changes in the power spectra of broadband acoustic stimuli. The goal is to use the knowledge we have already acquired about the simpler stimuli and apply it to the perception of these more complex stimuli. Specifically, three areas are scheduled for investigation: 1) the prediction problem--how can the detectability of complex spectral changes be predicted from the detectability of simpler spectral changes? 2) speech-like stimuli--does the detection of spectral change differ for harmonic and inharmonic complexes? 3) dynamic spectra--how does time variation in the spectra affect the ability to detect spectral change? Understanding the perception of complex auditory stimuli will promote the understanding of the relationship between peripheral auditory processes and more complex central processes such as the perception of speech. It will contribute some of the basic information needed to provide a rational basis for diagnosis and treatment of auditory impairments.