Study of auditory sensory memory in normal preschool children

GAO Yan; HONG Qi; LUO Xiao-xing; JIANG Tao-tao; XU Hui-lian; YAO Xiao-fang; JIN Yan; ZHUO Xiu-hui

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Chinese Journal of Child Health Care ›› 2012, Vol. 20 ›› Issue (6) : 510-513.

Study of auditory sensory memory in normal preschool children

GAO Yan,HONG Qi ,LUO Xiao-xing,JIANG Tao-tao,XU Hui-lian,YAO Xiao-fang,JIN Yan,ZHUO Xiu-hui

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Abstract

【Objective】 To investigate the auditory sensory memory function of normal preschool children with auditory event-related potential. 【Methods】 The mismatch negativity(MMN)was obtained in preschool children ages ranged from 30 to 72 months in an oddball paradigm.Stimulus consisted of 1 000 Hz tones with 85% probability as standard and 1 200 Hz with 15% probability as deviant. 【Results】 Pure tones elicited a strong MMN(peaking at about 170~175 ms)and a late discrimination negativity(peaking at about 450~500 ms)after stimulus onset mainly in the frontocentral area.There was no significant difference between the right and left hemisphere in the mean amplitude of 100 to 250 ms time-window. 【Conclusions】 The MMN and late discrimination negativity are developmentally quite stable in preschool children.There are probably difference in auditory sensory memory processing between male and female preschool children.

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GAO Yan,HONG Qi ,LUO Xiao-xing,JIANG Tao-tao,XU Hui-lian,YAO Xiao-fang,JIN Yan,ZHUO Xiu-hui. Study of auditory sensory memory in normal preschool children[J]. Chinese Journal of Child Health Care. 2012, 20(6): 510-513

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