ON THE COGNITIVE PENETRABILITY OF POSTURE CONTROL

被引:282
作者
TEASDALE, N
BARD, C
LARUE, J
FLEURY, M
机构
[1] Université Laval, Ste-Foy, QC
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1080/03610739308253919
中图分类号
R592 [老年病学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 100203 ;
摘要
Postural sway increases with age. The decreased stability associated with postural sway often has been related to the reduced peripheral sensibility in the visual, vestibular, and proprioceptive systems. We examined whether the micropostural adjustments necessary for maintaining balance also require some cognitive processing. Young and older subjects were submitted to an auditory reaction time task while maintaining an upright posture on a force platform. The auditory stimuli were presented randomly when subjects were in a central or in an eccentric less stable postural position in four conditions of vision/surface. If the postural adjustments require some cognitive processing, a more eccentric position of the center of foot pressure (COP) would require more attention than a stable position of the COP because when an eccentric position is identified, a corrective response subsequently needs to be selected, programmed, and executed. The visual and surface conditions were altered to determine if additional attentional resources need to be allocated to the postural task when there is a reduction of the sensory information available. Results showed that as the sensory information decreased, the postural task became increasingly difficult for the elderly and required more of their attentional capacity (as indexed by increases in reaction time).
引用
收藏
页码:1 / 13
页数:13
相关论文
共 23 条
[1]  
BARON A, 1988, HUMAN OPERANT CONDIT, P139
[2]  
Cerella J., 1980, AGING 1980S PSYCHOL, P332, DOI [DOI 10.1037/10050-024, 10.1037/10050-024]
[3]  
Craik F. I. M., 1977, HDB PSYCHOL AGING
[4]  
Craik FIM., 1982, AGING COGNITIVE PROC, P191
[5]   THE SIGNIFICANCE OF PROPRIOCEPTION ON POSTURAL STABILIZATION AS ASSESSED BY ISCHEMIA [J].
DIENER, HC ;
DICHGANS, J ;
GUSCHLBAUER, B ;
MAU, H .
BRAIN RESEARCH, 1984, 296 (01) :103-109
[6]   POSTURAL SWAY DURING STANDING AND UNEXPECTED DISTURBANCE OF BALANCE IN RANDOM SAMPLES OF MEN OF DIFFERENT AGES [J].
ERA, P ;
HEIKKINEN, E .
JOURNALS OF GERONTOLOGY, 1985, 40 (03) :287-295
[7]   INFLUENCE OF CENTRAL SET ON HUMAN POSTURAL RESPONSES [J].
HORAK, FB ;
DIENER, HC ;
NASHNER, LM .
JOURNAL OF NEUROPHYSIOLOGY, 1989, 62 (04) :841-853
[8]   COGNITIVE SPATIAL PROCESSING AND THE REGULATION OF POSTURE [J].
KERR, B ;
CONDON, SM ;
MCDONALD, LA .
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE, 1985, 11 (05) :617-622
[9]  
MANCHESTER D, 1989, J GERONTOL, V44, pM118
[10]   EFFECTS OF AGING AND TASK-DIFFICULTY ON DIVIDED ATTENTION PERFORMANCE [J].
MCDOWD, JM ;
CRAIK, FIM .
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE, 1988, 14 (02) :267-280