Perceptual equivalence of two acoustic cues for stop-consonant manner
Perceptual equivalence of two acoustic cues for stop-consonant manner
复制标题
停止辅音方式的两个声音提示的感知等效性
DOI：
--
复制
发表时间：
1980
期刊：
影响因子：
--
通讯作者：
A. Liberman
中科院分区：
文献类型：
--
作者：
H. Fitch;Terry G. Halwes;D. Erickson;A. Liberman
第一个实验考察了两个声学线索的正交变化的影响，这两个声学线索都是由塞音的发音产生的。发音的一个组成部分产生时间线索，另一个组成部分产生光谱线索。在语音识别任务中，这些完全不同的线索被发现参与交易关系：一个线索可以在一定范围内取代另一个。在第二个实验中，交易关系所隐含的感知等价性受到了更严格的测试。如果这些线索在感知上确实是等价的，那么它们应该在相同的感知维度上产生影响。既然如此，就应该有可能将它们联合收割机以这样一种方式结合起来，即在感知领域中以交叉的目的工作，它们有效地相互抵消。因此，这样产生的成对模式应该比单独使用任何一种线索产生的成对模式更难区分，而且比（相同的）两种线索以相反的方式组合并因此合作产生的成对模式更难区分。这一期望得到了证实。我们认为，这样证明的等价性是因为这两个线索是由一个专门考虑到它们在言语产生中的共同起源的系统处理的。如此解释，对等可以被看作是独特的语音感知的一个实例。
The first experiment examined the effects of orthogonal variation in two acoustic cues that are both produced by the articulation of a stop consonant. One component of the articulation produces a temporal cue, the other a spectral cue. In a phonetic identification task, these quite different cues were found to engage in a trading relation: One cue could, within limits, substitute for the other. In a second experiment, the perceptual equivalence implied by that trading relation was put to a stricter test. If the cues are truly equivalent in perception, then they should have their effects on the same perceptual dimension. That being so, it should be possible to combine them in such a way that, working at cross purposes in the perceptual domain, they effectively cancel each other. Pairs of patterns so produced should, then, be harder to discriminate than pairs produced by either cue alone, and still harder than those produced when the (same) two cues are combined in the opposite way and so cooperate. That expectation was confirmed. We suggest that the equivalence thus demonstrated comes about because the two cues are processed by a system specialized to take account of their common origin in speech production. So interpreted, the equivalence may be viewed as an instance of distinctively phonetic perception.