Numerical distance effect in the N240 component in a number-matching task.

Abstract:

: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.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Zhou X,Chen C,Dong Q,Zhang H,Chen C,Qiao S,Zhao H,Jiang T,Guo Y

doi

10.1097/01.wnr.0000221840.12632.9f

subject

Has Abstract

pub_date

2006-07-17 00:00:00

pages

991-4

issue

10

eissn

0959-4965

issn

1473-558X

pii

00001756-200607170-00009

journal_volume

17

pub_type

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