Hemispheric sensitivity to body stimuli in simple reaction time

被引:18
作者
Aziz-Zadeh, L
Iacoboni, M
Zaidel, E
机构
[1] Univ Calif Los Angeles, Ahmanson Lovelace Brain Mapping Ctr, Los Angeles, CA 90024 USA
[2] Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90024 USA
[3] Univ Calif Los Angeles, Dept Psychiat & Biobehav Sci, David Geffen Sch Med, Los Angeles, CA 90024 USA
[4] Univ Calif Los Angeles, Brain Res Inst, Los Angeles, CA 90024 USA
关键词
body observation; sensory-motor integration; hemispheres; laterality; motor representation; ideomotor compatibility; perception-action;
D O I
10.1007/s00221-005-0194-8
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Previous research indicates that people respond fastest when the motor response is (spatially, functionally, anatomically, or otherwise) congruent to the visual stimulus. This effect, called ideomotor compatibility, is thought to be expressed in motor areas. Congruence occurs when the stimulus and response share some dimensions in their internal representations. If the ideomotor compatibility hypothesis were true, we would expect facilitation when right hand stimuli are presented to the left hemisphere, or left hand stimuli are presented to the right hemisphere. To address this issue, we conducted a simple reaction time experiment with lateralized targets. Participants were instructed to press a button as soon as a target was observed. The target stimulus was a left hand, a right hand, or a neutral control. Each hemisphere showed faster responses to contralateral hand stimuli as compared with ipsilateral hand stimuli, consistent with the ideomotor compatibility hypothesis. The results support an automatic and implicit processing of visual stimuli within motor representations even when no recognition of, or decision about, the stimulus is necessary.
引用
收藏
页码:116 / 121
页数:6
相关论文
共 20 条
[1]   Functional MRI cerebral activation and deactivation during finger movement [J].
Allison, JD ;
Meader, KJ ;
Loring, DW ;
Figueroa, RE ;
Wright, JC .
NEUROLOGY, 2000, 54 (01) :135-142
[2]   Movement observation affects movement execution in a simple response task [J].
Brass, M ;
Bekkering, H ;
Prinz, W .
ACTA PSYCHOLOGICA, 2001, 106 (1-2) :3-22
[3]   Hand action preparation influences the responses to hand pictures [J].
Craighero, L ;
Bello, A ;
Fadiga, L ;
Rizzolatti, G .
NEUROPSYCHOLOGIA, 2002, 40 (05) :492-502
[4]   Role of the posterior parietal cortex in updating reaching movements to a visual target [J].
Desmurget, M ;
Epstein, CM ;
Turner, RS ;
Prablanc, C ;
Alexander, GE ;
Grafton, ST .
NATURE NEUROSCIENCE, 1999, 2 (06) :563-567
[5]   A cortical area selective for visual processing of the human body [J].
Downing, PE ;
Jiang, YH ;
Shuman, M ;
Kanwisher, N .
SCIENCE, 2001, 293 (5539) :2470-2473
[6]   Action recognition in the premotor cortex [J].
Gallese, V ;
Fadiga, L ;
Fogassi, L ;
Rizzolatti, G .
BRAIN, 1996, 119 :593-609
[7]   SENSORY FEEDBACK MECHANISMS IN PERFORMANCE CONTROL - WITH SPECIAL REFERENCE TO IDEO-MOTOR MECHANISM [J].
GREENWALD, AG .
PSYCHOLOGICAL REVIEW, 1970, 77 (02) :73-99
[8]   Crossed-uncrossed difference in simple reaction times to lateralized flashes: between- and within-subjects variability [J].
Iacoboni, M ;
Zaidel, E .
NEUROPSYCHOLOGIA, 2000, 38 (05) :535-541
[9]   Reafferent copies of imitated actions in the right superior temporal cortex [J].
Iacoboni, M ;
Koski, LM ;
Brass, M ;
Bekkering, H ;
Woods, RP ;
Dubeau, MC ;
Mazziotta, JC ;
Rizzolatti, G .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (24) :13995-13999
[10]   Does the previous trial affect lateralized lexical decision? [J].
Iacoboni, M ;
Rayman, J ;
Zaidel, E .
NEUROPSYCHOLOGIA, 1997, 35 (01) :81-88