Godfrey J J, Millay K
J Am Audiol Soc. 1978 Mar-Apr;3(5):200-8.
An experimental method is described for assessing the effect of sensorineural hearing impairment on the perception of particular speech cues. Stimuli consisted of synthetic consonant-vowel syllables, varying along a continuum in the duration of initial formant transitions, such that the shorter stimuli sounded like [bepsilon], and the longer ones sounded like [Wepsilon]. Subjects with mild and moderate hearing losses were asked to identify the stimuli, and their performance was compared to that of normal-hearing listeners. Observed differences suggest that categorizing these sounds as stops versus glides is especially difficult for some impaired listeners. This difficulty is shown to be specific to the "rapid spectral change" cue, independent of frequency content or intensity level. The importance of this finding with respect to categorical perception and the implications for further tests of impairment for speech are discussed briefly.
本文描述了一种实验方法，用于评估感音神经性听力损失对特定语音线索感知的影响。刺激材料由合成的辅音-元音音节组成，初始共振峰过渡时长呈连续变化，较短的刺激听起来像[bepsilon]，较长的听起来像[Wepsilon]。研究要求轻度和中度听力损失的受试者识别这些刺激，并将他们的表现与听力正常的听众进行比较。观察到的差异表明，对于一些听力受损的听众来说，将这些声音归类为塞音还是滑音尤其困难。结果表明，这种困难是特定于“快速频谱变化”线索的，与频率内容或强度水平无关。本文简要讨论了这一发现对于范畴知觉的重要性以及对进一步语音损伤测试的意义。
