VOCAL-AUDITORY FUNCTIONS IN THE CHIMPANZEE - VOWEL PERCEPTION
VOCAL-AUDITORY FUNCTIONS IN THE CHIMPANZEE - VOWEL PERCEPTION
复制标题
DOI：
10.1007/bf02735200
复制
发表时间：
1989-06-01
影响因子：
2.5
通讯作者：
KIRITANI, S
中科院分区：
文献类型：
--
作者：
KOJIMA, S;KIRITANI, S
在黑猩猩和人类的感知元音进行了研究，使用的反应时间任务中，反应时间的元音的歧视被视为元音之间的相似性指数。使用的元音是五个合成和自然的日语元音和八个自然的法语元音。黑猩猩需要很长的反应时间来区分合成的[i]和[u]，以及[e]和[o]，也就是说，它们需要很长的反应时间来区分基于第二共振峰频率差异的元音。在自然[i]与[u]的区别中也观察到类似的趋势。人类受试者需要长的反应时间来辨别沿着沿着第一共振峰轴的元音。这些差异可以用两个物种之间听觉灵敏度的差异和言语感知的运动理论来解释。元音由不同的说话者发音，具有不同的声学特性。然而，人类可以将这些语音感知为相同的元音。我们用自然元音和合成的[o]- [a]连续体研究了黑猩猩言语知觉中的知觉恒常性现象。黑猩猩忽略了说话者的性别差异，并表现出声道正常化的能力。
The perception of vowels was studied in chimpanzees and humans, using a reaction time task in which reaction times for discrimination of vowels were taken as an index of similarity between vowels. Vowels used were five synthetic and natural Japanese vowels and eight natural French vowels. The chimpanzees required long reaction times for discrimination of synthetic [i] from [u] and [e] from [o], that is, they need long latencies for discrimination between vowels based on differences in frequency of the second formant. A similar tendency was observed for discrimination of natural [i] from [u]. The human subject required long reaction times for discrimination between vowels along the first formant axis. These differences can be explained by differences in auditory sensitivity between the two species and the motor theory of speech perception. A vowel, which is pronounced by different speakers, has different acoustic properties. However, humans can perceive these speech sounds as the same vowel. The phenomenon of perceptual constancy in speech perception was studied in chimpanzees using natural vowels and a synthetic [o]- [a] continuum. The chimpanzees ignored the difference in the sex of the speakers and showed a capacity for vocal tract normalization.