Facts, rules, and strategies in single-digit multiplication:: evidence from event-related brain potentials

被引:54
作者
Jost, K [1 ]
Beinhoff, U [1 ]
Hennighausen, E [1 ]
Rösler, F [1 ]
机构
[1] Univ Marburg, Dept Psychol, D-35032 Marburg, Germany
来源
COGNITIVE BRAIN RESEARCH | 2004年 / 20卷 / 02期
关键词
mental calculation; multiplication facts; problem size effect; rule application; slow waves; P300;
D O I
10.1016/j.cogbrainres.2004.02.005
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
It has been hypothesized that zero vs. nonzero operands in single-digit multiplication problems invoke distinct solution strategies. We studied such problems in an implicit production task with event-related brain potentials (ERPs) recorded from 61 scalp positions in 18 participants. The topography of a slow negative wave, which accompanied the implicit production of the multiplication result, varied with problem type. In comparison to small problems, larger problems evoked a stronger negativity over fronto-central and right temporal sites, and zero problems evoked a left anterior negativity. These topographic differences indicate not only that zero and small nonzero problems are solved by means of distinct strategies-most likely rule application vs. fact retrieval-but also that larger, less practiced problems invoke other processes than pure fact retrieval. Moreover, ERPs showed a positive deflection around 450 ms with a centro-parietal topography (P300), whose amplitude reflected differences in anticipated problem difficulty. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:183 / 193
页数:11
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