Actigraphic evaluation of handedness

被引:15
作者
Nagels, G
Marion, P
Pickut, BA
Timmermans, L
DeDeyn, PP
机构
[1] MIDDLEHEIM GEN HOSP,DEPT NEUROL,ANTWERP,BELGIUM
[2] UNIV INSTELLING ANTWERP,BORN BUNGE FDN,LAB NEUROCHEM & BEHAV,B-2610 WILRIJK,ANTWERP,BELGIUM
来源
ELECTROMYOGRAPHY AND MOTOR CONTROL-ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY | 1996年 / 101卷 / 03期
关键词
motor activity; recording; activity monitor; site of placement; lateralisation; actigraphy;
D O I
10.1016/0924-980X(96)95566-6
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The utility of an objective evaluation of motor activity, actigraphy, was examined in the evaluation of handedness. Hand preference was assessed in a homogenous group of 190 young volunteers using the Edinburgh Inventory (EI). The EI distribution obtained in the population studied was comparable with distributions cited in the literature. Simultaneous actigraphic recordings from both wrists were made in 58 of these subjects for 20 h, starting at 1000 h, using an epoch length of 4 s. Care was taken to include comparable numbers of right- and left-handers (based on EI score) in this subgroup. Two actigraphic parameters were defined. One of these, the Activity Index (AI[x]), is a measure of the difference in total motor activity between right and left wrist. The other, Movement Index (MI(y)[x]) is a measure of the difference in movement pattern, AI[x] showed a moderate but significant correlation with EI (r = 0.36, P < 0.005). The correlation between MI(y)[x] and EI was high (r = 0.65, P < 0.0001). Rebinning of the data into 60 s epochs decreased the degree of linear correlation between MI(y)[x] and EI. We conclude, in contrast to a previous study, that actigraphy can be used to discriminate between dominant and non-dominant hands; that the difference in movement pattern between right and left hand is larger than the difference in total motor activity; and that epoch lengths shorter than the conventional 60 s are more sensitive for this kind of discrimination.
引用
收藏
页码:226 / 232
页数:7
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