Department of Speech and Hearing Science, The Ohio State University, 1070 Carmack Road, Columbus, OH 43210, USA.
Percept Mot Skills. 2010 Oct;111(2):543-58. doi: 10.2466/10.15.24.27.PMS.111.5.543-558.
Underlying auditory processes in speech perception were explored. Specifically of interest were the stages of auditory processing involved in the integration of dynamic information in nontraditional speech cues such as the virtual formant transitions. These signals utilize intensity ratio cues and changes in spectral center-of-gravity (instead of the actual formant frequency transitions) to produce perceived F3 glides. 6 men and 8 women (M age = 24.2 yr., SD = 2.1), recruited through posted materials from graduate students at The Ohio State University, participated in two experiments. The results for frequency-based formant transitions (Exp. 1) indicated that spectral cues to syllable identification are combined at more central levels of auditory processing. However, when the components of the virtual formant stimuli were divided between the ears in a dichotic listening task (Exp. 2), the results indicated that auditory spectral integration may occur above the auditory periphery but at stages more intermediate rather than central.
研究了语音感知中的潜在听觉过程。特别感兴趣的是在整合非传统语音线索（如虚拟共振峰过渡）中的动态信息时涉及的听觉处理阶段。这些信号利用强度比线索和频谱重心（而不是实际共振峰频率过渡）的变化来产生感知的 F3 滑音。6 名男性和 8 名女性（M 年龄=24.2 岁，SD=2.1）通过俄亥俄州立大学研究生的张贴材料招募，参加了两个实验。基于频率的共振峰过渡的结果（实验 1）表明，音节识别的频谱线索在听觉处理的更中心水平上结合。然而，当虚拟共振峰刺激的成分在双耳分听任务中（实验 2）分开时，结果表明听觉频谱整合可能发生在听觉外围之上，但在更中间而不是中心的阶段。
