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Electrophysiological Evidence of Gender differences in Chinese words recognition

Electrophysiological Evidence of Gender differences in Chine...

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2005 International Conference on Neural Networks and Brain(ICNN&B’05)

作者： Wang Xiang Yao Shu-qiao Liu Ding Wang Xiao-yan Chen Bin Wu Da-xing Cheng Zao-huo The Medical Psychological department of Second Xiangya Hospital Central South University

ISBN: (纸本)0780394224;9780780394223

＜正＞Event-related potentials were recorded in order to study gender difference in the brain processes of verbal recognition memory.15 male and 15 female healthy volunteers received a Chinese words recognition task.Both males and females showed a positive-going parietal old/new effect,but females demonstrated larger P500 amplitudes and shorter P500 latency than males.Furthermore,the parietal old/new effect of males was significantly left-lateralized,while that of females showed more bilateral pattern.Only males elicited obvious frontally distributed old/new effect between 250 and 350 ms,which was negative-going and right-lateralized. These findings suggested that gender differences did exist in the recognition processing of Chinese words.Some of the gender differences could be interpreted as reflecting different strengths and speed of brain activation and others could be interpreted as reflecting the involvement of different neural structures.In addition,males and females may use different strategies to make correct discrimination.

关键词： Gender difference Recognition Event-related potentials（ERPs） old/new effects

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Tracking new and Studied Objects during Working Memory

Tracking New and Studied Objects during Working Memory

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第十届全国心理学学术大会

作者：郭春彦张钦 Adam Lawson Department of Psychology Capital Normal University Behavioral Science Department University of Kentucky College of Medicine Lexington Kentucky USA

Searching for an old friend or new acquaintance at a party among other old friends and new encounters is an everyday task. Our current investigation examined such a task with common objects to better understand how neural mechanisms relating to prior learning are affected by working memory status. Specifically, we investigated brain responses using event-related potentials (ERPs) to targets held in working memory among distracters using a modified delayed match-to-sample task. We also examined ERP correlates of working memory processes relating to new items (new targets versus new distracters) and studied items

关键词： Evoked Potentials old/new effects Working Memory

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