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" Numerical distance effect in the N240 component in a number-matching task. "
Zhou, Xinlin; Chen, Chuansheng; Dong, Qi; Zhang, Hongchuan; Chen, Chunhui; Qiao, Sibing; Zhao, Hui; Jiang, Ting; Guo, Yi
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AL
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| Record Number
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908284
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LA85f4w78j
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| Title & Author
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Numerical distance effect in the N240 component in a number-matching task. [Article]\ Zhou, Xinlin; Chen, Chuansheng; Dong, Qi; Zhang, Hongchuan; Chen, Chunhui; Qiao, Sibing; Zhao, Hui; Jiang, Ting; Guo, Yi
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2006
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| Title of Periodical
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UC Irvine
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| Abstract
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The event-related potential technique was used to investigate the time course and scalp-potential topography for the numerical distance effect in a number-matching task. Twenty undergraduates judged whether a number matched or did not match another number presented 1.5 s earlier. Compared with number pairs with a 'small' numerical distance (distance=1), number pairs with a 'large' numerical distance (greater than 2) showed a longer latency and a greater positive amplitude in the N240 component. This numerical distance effect was limited to fronto-central electrodes. These results were discussed in terms of the neural bases of the numerical distance effect during the automatic processing of numbers.
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