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Task Effects on Perceptual Learning of Korean Three-way Phoneme Distinction

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2008, v.20 no.3, pp.145-166
https://doi.org/10.22172/cogbio.2008.20.3.002


Abstract

In Japanese learner's discriminative learning of the three-way phoneme distinction on Korean alveolar stop sound, the learning effects on the discrimination of distinctive phonemes by three tasks (identification, same-different discrimination, oral practice) were compared and examined through Experiment 1 and 2. In the first experiment, examining the discriminative learning effects by three tasks run independently, increment of phoneme distinction was the largest for the identification-task group and the next the same-different discrimination-task group and the oral practice group successively ordered. It was shown that the learning effect by phonemes differed depending upon the learning tasks. Inspecting the false-response patterns of phoneme identification and the acoustic stimuli produced by 6 speakers, the differential effect along three phonemes could be interpreted as a result of responding selectively to acoustic cues such as VOT and F0. The second experiment, scrutinizing more effective perceptual learning task, compared two successive combination of the identification and the same-different discrimination tasks. The learning group that learned firstly by the same-different discrimination task and secondly by the identification task, yielded phoneme discrimination effect more than the other group with the reversed task order. The implication of the two experiment on the previous studies for phoneme discrimination and the possibility of constructing effective learning tasks were discussed.

keywords
phoneme discrimination, Korean three-way phoneme distinction, speech perception, perceptual learning, selective attention, 음소 변별, 한국어 삼중대립 음소, 음성지각, 지각학습, 선택적 주의

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The Korean Journal of Cognitive and Biological Psychology