AN AUDITORY BASIS FOR THE STIMULUS-LENGTH EFFECT IN THE PERCEPTION OF STOPS AND GLIDES
AN AUDITORY BASIS FOR THE STIMULUS-LENGTH EFFECT IN THE PERCEPTION OF STOPS AND GLIDES
复制标题
DOI：
10.1121/1.397864
复制
发表时间：
1989-05-01
影响因子：
2.4
通讯作者：
WALSH, MA
中科院分区：
文献类型：
--
作者：
DIEHL, RL;WALSH, MA
研究感知停止和滑行的可能听觉因素（例如，/B/vs/w/），比较了几个系列的/ba/-/wa/刺激和相应的非语音刺激系列的两类标记性能，这些刺激模拟了语音项的第一共振峰轨迹和幅度上升时间。在大多数方面，对言语和非言语刺激的表现是密切平行的。过渡时长被证明是一个有效的线索，停止/滑行的区别和非言语的区别突然和逐渐开始，和类别边界沿着过渡时长维度没有显着差异，在这两种情况下。当停止/滑动的区别是由过渡持续时间的变化发出信号时，有一个可靠的刺激长度效应：一个较长的元音转移到更大的过渡持续时间的类别边界。相应的非言语刺激也观察到类似的效果。上升时间的变化只有一个小的影响信号停止/滑行的区别和非言语之间的区别突然和逐渐发作。然而，在言语和非言语表现之间有一个差异。当停止/滑行的区别提示上升时间的变化，有一个刺激长度的效果，但没有这样的效果发生相应的非言语刺激。总的来说，结果表明，有显着的听觉共性之间的感知停止和滑行和感知声学类似的非言语刺激。
To investigate possible auditory factors in the perception of stops and glides (e.g., /b/vs/w/), a two-category labeling performance was compared on several series of /ba/-/wa/ stimuli and on corresponding nonspeech stimulus series that modeled the first-formant trajectories and amplitude rise times of the speech items. In most respects, performance on the speech and nonspeech stimuli was closely parallel. Transition duration proved to be an effective cue for both the stop/glide distinction and the nonspeech distinction between abrupt and gradual onsets, and the category boundaries along the transition-duration dimension did not differ significantly in the two cases. When the stop/glide distinction was signaled by variation in transition duration, there was a reliable stimulus-length effect: A longer vowel shifted the category boundary toward greater transition durations. A similar effect was observed for the corresponding nonspeech stimuli. Variation in rise time had only a small effect in signaling both the stop/glide distinction and the nonspeech distinction between abrupt and gradual onsets. There was, however, one discrepancy between the speech and nonspeech performance. When the stop/glide distinction was cued by rise-time variation, there was a stimulus-length effect, but no such effect occurred for the corresponding nonspeech stimuli. On balance, the results suggest that there are significant auditory commonalities between the perception of stops and glides and the perception of acoustically analogous nonspeech stimuli.