Newman R S, Sawusch J R
Department of Psychology, SUNY at Buffalo, NY 14260, USA.
Percept Psychophys. 1996 May;58(4):540-60. doi: 10.3758/bf03213089.
A series of studies was undertaken to examine how rate normalization in speech perception would be influenced by the similarity, duration, and phonotactics of phonemes that were adjacent or distal from the initial, target phoneme. The duration of the adjacent (following) phoneme always had an effect on perception of the initial target. Neither phonotactics nor acoustic similarity seemed to have any influence on this rate normalization effect. However, effects of the duration of the nonadjacent (distal) phoneme were only found when that phoneme was temporally close to the target. These results suggest that there is a temporal window over which rate normalization occurs. In most cases, only the adjacent phoneme or adjacent two phonemes will fall within this window and thus influence perception of a phoneme distinction.
开展了一系列研究，以考察语音感知中的速率归一化如何受到与初始目标音素相邻或不相邻的音素的相似度、时长和音位结构的影响。相邻（后续）音素的时长总是会对初始目标的感知产生影响。音位结构和声学相似度似乎都对这种速率归一化效应没有任何影响。然而，只有当非相邻（远端）音素在时间上接近目标时，才会发现其时长产生的影响。这些结果表明，存在一个发生速率归一化的时间窗口。在大多数情况下，只有相邻音素或相邻的两个音素会落在这个窗口内，从而影响音素差异的感知。
