Adaptation of speech by nonspeech: evidence for complex acoustic cue detectors.
Adaptation of speech by nonspeech: evidence for complex acoustic cue detectors.
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非语音对语音的适应：复杂声音提示检测器的证据。
DOI：
10.1121/1.2017812
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
E. Newport
中科院分区：
文献类型：
--
作者：
A. Samuel;E. Newport
进行了三个选择性适应实验，使用非语音刺激(音乐和噪音)来适应语音连续体([ba]-[wa]和[cha]-[sa])。适配器只有在周期性匹配时才能在语音连续体上引起显著的音素边界移动：音乐刺激适应[ba]-[wa]，而噪声刺激适应[Cha]-[Sa]。然而，即使适配器和测试连续体在其他简单的声学提示(上升时间或辅音持续时间)上不匹配，这种影响也会发生。适配器和测试项目的光谱重叠也被发现对于适应是不必要的。这些数据支持对复杂声音提示敏感的听觉处理器的存在，以及对更抽象的属性做出反应的单元的存在。后者可能处于以前被认为是拼音的水平。观察到了不对称的适应，反对这些单位的对手-进程安排。提供了语音感知过程的两级声学模型来解释数据。
Three selective adaptation experiments were run, using nonspeech stimuli (music and noise) to adapt speech continua ([ba]-[wa] and [cha]-[sha]). The adaptors caused significant phoneme boundary shifts on the speech continua only when they matched in periodicity: Music stimuli adapted [ba]-[wa], whereas noise stimuli adapted [cha]-[sha]. However, such effects occurred even when the adaptors and test continua did not match in other simple acoustic cues (rise time or consonant duration). Spectral overlap of adaptors and test items was also found to be unnecessary for adaptation. The data support the existence of auditory processors sensitive to complex acoustic cues, as well as units that respond to more abstract properties. The latter are probably at a level previously thought to be phonetic. Asymmetrical adaptation was observed, arguing against an opponent-process arrangement of these units. A two-level acoustic model of the speech perception process is offered to account for the data.