Time course of number magnitude interference during grasping

被引：97

作者：

Andres, Michael ^{[1
,2
]}

Ostry, David J. ^{[3
,4
]}

Nicol, Florence ^{[2
]}

Paus, Tomas ^{[5
,6
]}

机构：

[1] Catholic Univ Louvain, Fac Med, Unite Neurophysiol, B-1200 Brussels, Belgium

[2] Catholic Univ Louvain, Fac Psychol, Unite Neurosci, B-1348 Louvain, Belgium

[3] McGill Univ, Dept Psychol, Montreal, PQ, Canada

[4] Haskins Labs Inc, New Haven, CT 06511 USA

[5] McGill Univ, Montreal Neurol Inst, Montreal, PQ, Canada

[6] Univ Nottingham, Brain & Body Ctr, Nottingham NG7 2RD, England

来源：

CORTEX | 2008年 / 44卷 / 04期

关键词：

control; planning; number; finger; semanthic; action;

D O I：

10.1016/j.cortex.2007.08.007

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

In the present study, we recorded the kinematics of grasping movements in order to measure the possible interference caused by digits printed on the visible face of the objects to grasp. The aim of this approach was to test the hypothesis that digit magnitude processing shares common mechanisms with object size estimate during grasping. In the first stages of reaching, grip aperture was found to be larger consequent to the presentation of digits with a high value rather than a low one. The effect of digit magnitude on grip aperture was more pronounced for large objects. As the hand got closer to the object, the influence of digit magnitude decreased and grip aperture progressively reflected the actual size of the object. We concluded that number magnitude may interact with grip aperture while programming the grasping movements. (c) 2008 Elsevier Masson Srl. All rights reserved.

引用

页码：414 / 419

页数：6

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