| Number | 464 |
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| Year | 1984 |
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| Drawer | 8 |
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| Entry Date | 11/19/1999 |
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| Authors | Morrongiello, B. A., Robson, R. C., Best, C. T., & Clifton, R. K. |
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| Contact | |
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| Publication | Journal of Experimental Child Psychology, 37, 231-250. |
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| Abstract | Tested eight 5-yr-olds for perceptual trading relations between a temporal cue (silence duration) and a spectral cue (F-sub-1 onset frequency) for the"say^stay" distinction. Identification functions were obtained for 2 synthetic say^stay continua, each containing systematic variations in the amount of silence following the /s/ noise. In one continuum, the vocalic portion had a lower F-sub-1 onset than in the other continuum. Subjects showed a smaller trading relation than has been found with adults (C. T. Rest et al; see PA, Vol 67:2671). They did not differ from adults,
however, in their perception of an "ay^day" continuum formed by varying F-sub-1 onset frequency only. The results of a discrimination task in which the 2 acoustic cues were made to "cooperate" or "conflict" phonetically support the notion of perceptual equivalence of the temporal and spectral cues along a single phonetic dimension. Results indicate that young children, like adults, perceptually integrate multiple cues to a speech contrast in a phonetically relevant manner but that they may not give the same perceptual weights to the various cues as do adults. |
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| Notes | |
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