Article Title：Teaching the |r|-|1| discrimination to Japanese adults:: behavioral and neural aspects
Abstract：
Several studies have been conducted to address the learning of a normative speech contrast in adulthood, using native speakers of Japanese and the English /r/-/I/ contrast. Japanese adults were asked to identify contrasting /r/-/I/ stimuli (e.g., rock-lock). An adaptive training regime starting with initially easy stimuli was contrasted with a fixed training regime using difficult stimuli, with some subjects receiving feedback on the correctness of their responses and others receiving no feedback in both conditions. After three and six sessions of training, subjects received tests assessing identification and discrimination of /r/-/I/ stimuli as well as generalization. In all cases except fixed training without feedback, subjects showed clear evidence of learning, and several indicators suggested that training affects speech perception, rather than simply auditory processes. Neuroimaging studies currently underway are examining the neural basis of these findings. (C) 2002 Published by Elsevier Science Inc.
Keywords: plasticity; learning; speech discrimination training; Hebbian learning; language learning in adulthood
DOI: 10.1016/S0031-9384(02)00916-2
Source：PHYSIOLOGY & BEHAVIOR
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