A Hebbian model of learning predicts that adults may be able to acquire a nonnative speech contrast if they are trained with stimuli that are exaggerated to make them perceptually distinct. To test these ideas, we asked Japanese adults to identify contrasting [r]-[l] stimuli (e.g., rock-lock) in two training conditions. In the adaptive condition, the [r]-[l] contrast was exaggerated at first and then adjusted to maintain accurate identification. In the fixed condition, a fixed pair of stimuli were used that were distinguishable by native English speakers but difficult for the Japanese learners to discriminate. To examine whether feedback contributes to learning, we ran separate groups with and without feedback in the fixed and the adaptive conditions. Without feedback, 3 days of adaptive training produced substantial improvements, but 3 days of fixed training produced no benefit relative to control, consistent with the Hebbian account. With feedback, both fixed and adaptive training led to robust improvements, and the benefit of training transferred to a second continuum (e.g., road-load). The results are consistent with Hebbian models that are augmented to be sensitive to feedback.
Barto, A. G. (1994). Reinforcement learning control. Current Opinion in Neurobiology, 4, 888–893.
Best, C. [T.] (1995). A direct realist view of cross-language speech perception. In W. Strange (Ed.), Speech perception and linguistic experience: Issues in cross-language research (pp. 171–204). Baltimore: York.
Best, C. T., McRoberts, G. W., & Sithole, N. (1988). The phonological basis of perceptual loss for nonnative contrasts: Maintenance of discrimination among Zulu clicks by English-speaking adults and infants. Journal of Experimental Psychology: Human Perception & Performance, 14, 345–360.
Bradlow, A. R., Akahane-Yamada, R., Pisoni, D. B., & Tohkura, Y. (1999). Training Japanese listeners to identify English /r/ and / l/: Long-term retention of learning in speech perception and production. Perception & Psychophysics, 61, 977–985.
Bradlow, A. R., Pisoni, D. B., Yamada, R. A., & Tohkura, Y. (1997). Training the Japanese listener to identify English /r/ and /l/: IV. Some effects of perceptual learning on speech production. Journal of the Acoustical Society of America, 101, 2299–2310.
Flege, J. [E.] (1995). Second language speech learning: Theory, findings, and problems. In W. Strange (Ed.), Speech perception and linguistic experience: Issues in cross-language research (pp. 233–273). Baltimore: York.
Flege, J. E., Takagi, N., & Mann, V. (1996). Lexical familiarity and English-language experience affect Japanese adults’ perception of / r/ and / l/. Journal of the Acoustical Society of America, 99, 1161–1173.
Guenther, F. H., & Gjaja, M. N. (1996). The perceptual magnet effect as an emergent property of neural map formation. Journal of the Acoustical Society of America, 100, 1111–1121.
Guion, S. G., Flege, J. E., Akahane-Yamada, R. K., & Pruitt, J. C. (2000). An investigation of current models of second language speech perception: The case of Japanese adults’ perception of English consonants. Journal of the Acoustical Society of America, 107, 2711–2724.
Hebb, D. O. (1949). The organization of behavior. New York: Wiley.
Iverson, P., & Kuhl, P. (1995). Mapping the perceptual magnet effect for speech using signal detection theory and multidimensional scaling. Journal of the Acoustical Society of America, 97, 553–562.
Jamieson, D. G., & Morosan, D. E. (1986). Training non-native speech contrasts in adults: Acquisition of the English ð-π contrast by francophones. Perception & Psychophysics, 40, 205–215.
Jamieson, D. G., & Morosan, D. E. (1989). Training new, nonnative speech contrasts: A comparison of the prototype and perceptual fading techniques. Canadian Journal of Psychology, 43, 88–96.
Kohonen, T. (1982). Self-organized formation of topologically correct feature maps. Biological Cybernetics, 43, 59–69.
Kruschke, J. K. (1992). ALCOVE: An exemplar-based connectionist model of category learning. Psychological Review, 99, 22–44.
Kuhl, P. K. (1991). Human adults and human infants show a “perceptual magnet effect” for the prototypes of speech categories, monkeys do not. Perception & Psychophysics, 50, 93–107.
Kuhl, P. K. (1993). Developmental speech perception: Implications for models of language impairment. In P. Tallal, A. M. Galaburda, R. R. Llinas, & C. von Euler (Eds.), Temporal information processing in the nervous system: Special reference to dyslexia and dysphasia (Annals of the New York Academy of Sciences, Vol. 682, pp. 248–263). New York: New York Academy of Sciences.
Kuhl, P. K., Andruski, J. E., Chistovich, I. A., Chistovich, L. A., Kozhevnikova, E. V., Ryskina, V. L., Stolyarova, E. I., Sundberg, U., & Lacerda, F. (1997). Cross-language analysis of phonetic units in language addressed to infants. Science, 277, 684–686.
Kuhl, P. K., & Iverson, P. (1995). Linguistic experience and the “perceptual magnet effect.” In W. Strange (Ed.), Speech perception and linguistic experience: Issues in cross-language research (pp. 121–154). Baltimore: York.
Kuhl, P. K., Williams, K. A., Lacerda, F., Stevens, K. N., & Lindblom, B. (1992). Linguistic experience alters phonetic perception in infants by 6 months of age. Science, 225, 606–608.
Lacerda, F. (1995). The perceptual-magnet effect: An emergent consequence of exemplar-based phonetic memory. In K. Elenius & R. Brandrud (Eds.), Proceedings of the 13th International Congress of Phonetic Sciences (Vol. 2, pp. 140–147). Stockholm: Kungliga Tekniska Högskolan and Stockholm University.
Liberman, A. M., Cooper, F. S., Shankweiler, D. S., & Studdert-Kenedy, M. (1967). Perception of the speech code. Psychological Review, 74, 431–461.
Linsker, R. (1986a). From basic network principles to neural architecture: I. Emergence of spatial-opponent cells. Proceedings of the National Academy of Sciences, 83, 7508–7512.
Linsker, R. (1986b). From basic network principles to neural architecture: II. Emergence of orientation-selective cells. Proceedings of the National Academy of Sciences, 83, 8390–8394.
Linsker, R. (1986c). From basic network principles to neural architecture: III. Emergence of orientation columns. Proceedings of the National Academy of Sciences, 83, 8779–8783.
Lively, S. E., Logan, J. S., & Pisoni, D. B. (1993). Training Japanese listeners to identify English /r/ and /l/: II. The role of phonetic environment and talker variability in learning new perceptual categories. Journal of the Acoustical Society of America, 94, 1242–1255.
Lively, S. E., Pisoni, D. B., Yamada, R. A., Tohkura, Y., & Yamada, T. (1994). Training Japanese listeners to identify English /r/and /l/: III. Long-term retention of new phonetic categories. Journal of the Acoustical Society of America, 96, 2076–2087.
Logan, J. S., Lively, S. E., & Pisoni, D. B. (1991). Training Japanese listeners to identify English /r/ and /l/: A first report. Journal of the Acoustical Society of America, 89, 874–886.
Logan, J. S., & Pruitt, J. S. (1995). Methodological issues in training listeners to perceive nonnative phonemes: Linguistic experience and the “perceptual magnet effect.” In W. Strange (Ed.), Speech perception and linguistic experience: Issues in cross-language research (pp. 121–154). Baltimore: York.
McClelland, J. L., Thomas, A., McCandliss, B. D., & Fiez, J. A. (1999). Understanding failures of learning: Hebbian learning, competition for representational space, and some preliminary experimental data. In J. Reggia, E. Ruppin, & D. Glanzman (Eds.), Brain, behavioral, and cognitive disorders: The neurocomputational perspective (pp. 75–80). Oxford: Elsevier.
Merzenich, M. M., Jenkins, W. M., Johnson, P., Schreiner, C., Miller, S. L., & Tallal, P. (1996). Temporal processing deficits of language-learning impaired children ameliorated by training. Science, 271, 77–81.
Miller, K. D., Keller, J. B., & Stryker, M. P. (1989). Ocular dominance column development: Analysis and simulation. Science, 245, 605–615.
Miyawaki, K., Strange, W., Verbrugge, R., Liberman, A. M., Jenkins, J. J., & Fujimura, O. (1975). An effect of linguistic experience: The discrimination of [r] and [l] by native speakers of Japanese and English. Perception & Psychophysics, 18, 331–340.
Morosan, D. E., & Jamieson, D. G. (1989). Evaluation of a technique for training new speech contrasts: Generalization across voices, but not word-position or task. Journal of Speech & Hearing Research, 32, 501–511.
O’Reilly, R. C. (1996). Biologically plausible error-driven learning using local activation differences: The generalized recirculation algorithm. Neural Computation, 8, 895–938.
O’Reilly, R. C. (1998). Six principles for biologically based computational models of cortical cognition. Trends in Cognitive Sciences,2, 455–462.
Pisoni, D. B., Aslin, R. N., Perey, A. J., & Hennessy, B. L. (1982). Some effects of laboratory training on identification and discrimination of voicing contrasts in stop consonants. Journal of Experimental Psychology: Human Perception & Performance, 8, 297–314.
Protopapas, A., & Calhoun, B. (2000). Adaptive phonetic training for second language learners. In P. Delcloque (Ed.), Proceedings of the 2nd International Workshop on Integrating Speech Technology in Language Learning (pp. 31–38). University of Abertay Dundee, U.K.
Pruitt, J. S. (1995). The perception of Hindi dental and retroflex stop consonants by native speakers of Japanese and American English (University Microfilms No. 9542085). Unpublished doctoral dissertation, University of South Florida.
Pruitt, J. S., Kawahara, H., Akahane-Yamada, R., & Kubo, R. (1998). Methods of enhancing speech stimuli for perceptual training: Exaggerated articulation, context truncation, and “STRAIGHT” re-synthesis. In R. Carlson, C. Dunger, B. Granstrom, & A. Oster (Eds.), Speech technology in language learning (pp. 105–108). Stockholm, Sweden.
Rabiner, L. R., & Schafer, R. W. (1978). Digital processing of speech signals. Englewood Cliffs, NJ: Prentice-Hall.
Rescorla, R. A., & Wagner, A. R. (1972). A theory of Pavlovian conditioning: Variations in the effectiveness of reinforcement and non-reinforcement. In A. H. Block & W. F. Prokasy (Eds.), Classical conditioning II: Current research and theory (pp. 64–99). New York: Appleton-Century-Crofts.
Rosenblatt, F. (1962). Principles of neurodynamics. New York: Spartan.
Rumelhart, D. E., Hinton, G. E., & Williams, R. J. (1986). Learning representations by back-propagating errors. Nature, 323, 533–536.
Saffran, J. R., Aslin, R. N., & Newport, E. L. (1996). Statistical learning by 8-month-olds. Science, 274, 1926–1928.
Sawusch, J. R., & Gagnon, D. A. (1995). Auditory coding, cues, and coherence in phonetic perception. Journal of Experimental Psychology: Human Perception & Performance, 21, 635–652.
Strange, W., & Dittmann, S. (1984). Effects of discrimination training on the perception of /r-l / by Japanese adults learning English. Perception & Psychophysics, 36, 131–145.
Takagi, N. (1993). Perception of American English /r/ and /l/ by adult Japanese learners of English: A unified view. Unpublished doctoral dissertation, University of California, Irvine.
Tallal, P., Miller, S. L., Bedi, G., Byma, G., Wang, X., Nagaraja, S. S., Schreiner, C., Jenkins, W. M., & Merzenich, M. M. (1996). Language comprehension in language-learning impaired children improved with acoustically modified speech. Science, 271, 81–84.
Tees, R. C., & Werker, J. F. (1984). Perceptual flexibility: Maintenance or recovery of the ability to discriminate nonnative speech sounds. Canadian Journal of Psychology, 38, 579–590.
Thomas, A., & McClelland, J. L. (1997). How plasticity can prevent adaptation: Induction and remediation of perceptual consequences of early experience. Society for Neuroscience Abstracts, 23, 234.
Werker, J. F., & Tees, R. C. (1983). Developmental changes across childhood in the perception of non-native speech sounds. Canadian Journal of Psychology, 37, 278–286.
Werker, J. F., & Tees, R. C. (1984). Phonemic and phonetic factors in adult cross-language speech perception. Journal of the Acoustical Society of America, 75, 1866–1878.
The work reported in this article was supported by grants from the National Science Foundation (LIS-9720348), the National Institute of Mental Health (MH47566), and the J. S. McDonnell Foundation (96-34).
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McCandliss, B.D., Fiez, J.A., Protopapas, A. et al. Success and failure in teaching the [r]-[l] contrast to Japanese adults: Tests of a Hebbian model of plasticity and stabilization in spoken language perception. Cognitive, Affective, & Behavioral Neuroscience 2, 89–108 (2002). https://doi.org/10.3758/CABN.2.2.89
- Speech Perception
- Hebbian Learning
- Japanese Adult
- Adaptive Condition
- Phonetic Category