Abstract
The perception of consonants which were followed by the vowel [a] was studied in chimpanzees and humans, using a reaction time task in which reaction times for discrimination of syllables were taken as an index of similarity between consonants. Consonants used were 20 natural French consonants and six natural and synthetic Japanese stop consonants. Cluster and MDSCAL analyses of reaction times for discrimination of the French consonants suggested that the manner of articulation is the major determinant of the structure of the perception of consonants by the chimpanzees. Discrimination of stop consonants suggested that the major grouping in the chimpanzees was by voicing. The place of articulation from the lips to the velum was reproduced only in the perception of the synthetic unvoiced stop consonants in the two dimensional MDSCAL space. The phoneme-boundary effect (categorical perception) for the voicing and place-of-articulation features was also examined by a chimpanzee using synthetic [ga]-[ka] and [ba]-[da] continua, respectively. The chimpanzee showed enhanced discriminability at or near the phonetic boundaries between the velar voiced and unvoiced and also between the voiced bilabial and alveolar stops. These results suggest that the basic mechanism for the identification of consonants in chimpanzees is similar to that in humans, although chimpanzees are less accurate than humans in discrimination of consonants.
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References
Gardner R.A. &Gardner B.T., 1969.Teaching sign language to a chimpanzee. Science, 165: 664–672.
Itoh M., Tatsumi I.F., Sasanuma S. &Fukusako Y., 1986.Voice onset time perception in Japanese aphasic patients. Brain and Language, 28: 71–85.
Kojima S., 1986.Hearing, voice perception and vocal behavior in the chimpanzee. Transactions of the Committee on Speech Research/Hearing Research, The Acoustical Society of Japan, S85-88/H-86-14.
Kojima S., 1987.Perception of consonants by a chimpanzee. Transactions of the Committee on Speech Research/ Hearing Research, The Acoustical Society of Japan, SP86-114/H-87-17.
Kojima S., 1988.Frequency difference thresholds in Japanese macaques, chimpanzees and humans. Paper presented at the 52nd anual meeting of the Japan Psychological Association.
Kuhl P.K., 1981.Discrimination of speech by nonhuman animals: Basic suditory sensitivities conductive to the perception of speech-sound categories. Journal of the Acoustical Society of America, 70: 340–349.
Kuhl P.K., 1986.Theoretical contributions of tests on animals to the special-mechanisms debate in speech. Experimental Biology, 45: 233–256.
Kuhl P.K., 1988.Auditory perception and the evolution of speech. Human Evolution, 3: 19–43.
Kuhl P.K. &Miller J.D., 1978.Speech perception by the chinchila: Identification functions for synthetic VOT stimuli. Journal of the Acoustical Society of America, 63: 905–917.
Kuhl P.K. &Padden D.M., 1982.Enhanced discriminability at the phonetic boundaries for the voicing feature in macaques. Perception and Psychophysics, 32: 542–550.
Kuhl P.K. &Padden D.M., 1983.Enhanced discriminability at the phonetic boundaries for the place feature in macaques. Journal of the Acoustical Society of America, 73: 1003–1010.
Lisker L. &Abramson A., 1964.A cross language study of voicing in initial stops: acoustical measurements. Word, 20: 384–422.
Mattingly I.G., Liberman A.M., Syrdal A.K. &Halwes T., 1971.Discrimination in speech and nonspeech modes. Cognitive Psychology, 2: 131–157.
Miller G.A. &Nicely P.E., 1955.An analysis of perceptual confusions among some English consonants. Journal of the Acoustical Society of America, 27: 338–352.
Moody D.B., May B., Cole D.M. &Stebbins W.C., 1986.The role of frequency modulation of complex stimuli by primates. Experimental Biology, 45: 219–232.
Morse P.A. &Snowdon C.T., 1975.An investigation of categorical speech discrimination by rhesus monkeys. Perception & Psychophysics, 17: 9–16.
Peters R.W., 1963.Dimensions of perception for consonants. Journal of the Acoustical Society of America, 35: 1985–1989.
Premack D., 1976.Intelligence in ape and man. Hillsdale, N.J.: Erlbaum.
Rumbaugh D.M., 1977.Language learning by a chimpanzee. New York: Academic Press.
Seyfarth R.M. &Cheney D.L., 1980.The ontogeny of vervet monkey alarm calling behavior: a preliminary report. Zeitschrift fur Tierpsychologie, 54: 37–56.
Singh S., Woods D.R. &Becker G.M., 1972.Perceptual structure of 22 prevocalic English consonants. Journal of the Acoustical Society of America. 52: 1698–1713.
Sinnott J.M., Owren, M.J. &Petersen M.R., 1987.Auditory duration discrimination in Old World monkeys (Macaca, Cercopithecus) and humans. Journal of the Acoustical Society of America, 82: 465–470.
Snowdon C.T., Brown C.H. &Petersen M.R., 1982.Primate communication. Cambridge: Cambridge University Press.
Walden B.E., Montgomery A.A., Prosek R.A. &Schwartz D.M., 1980.Consonant similarity judgments by normal and hearing-impaired listeners. Journal of Speech and Hearing Research, 23: 162–184.
Waters R.S. &Wilson Jr. W.A., 1976.Speech perception by rhesus monkeys: The voicing distinction in synthesized labial and velar stop consonants. Perception and Psychophysics, 19: 285–289.
Wilson K.V., 1963.Multidimensional analyses of confusions of English consonants. American Journal of Psychology, 76: 89–95.
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Kojima, S., Tatsumi, I.F., Kiritani, S. et al. Vocal-auditory functions of the chimpanzee: consonant perception. Hum. Evol. 4, 403–416 (1989). https://doi.org/10.1007/BF02436436
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DOI: https://doi.org/10.1007/BF02436436