Perception of the symmetrical patterning of human gait by infants

被引:45
作者
Booth, AE [1 ]
Pinto, J
Bertenthal, BI
机构
[1] Northwestern Univ, Dept Psychol, Evanston, IL 60208 USA
[2] Univ Chicago, Dept Psychol, Chicago, IL 60637 USA
[3] Lafayette Coll, Dept Psychol, Lafayette, LA USA
关键词
D O I
10.1037//0012-1649.38.4.554
中图分类号
B844 [发展心理学(人类心理学)];
学科分类号
040202 ;
摘要
Two experiments tested 3- and 5-month-old infants' sensitivity to properties of point-light displays of human gait. In Experiment 1, infants were tested for discrimination of point-light displays of a walker and a runner, which, although they differed in many ways, were equivalent with regard to the phasing of limb movements. Results revealed that 3-month-old, but not 5-month-old, infants discriminated these displays. In Experiment 2, the symmetrical phase-patterning of the runner display was perturbed by advancing two of its limbs by 25% of the gait cycle. Both 3- and 5-month-old infants discriminated the walker display from this new phase-shifted runner display. These findings suggest that 3-month-old infants respond to the absolute and relative motions within a single limb, whereas 5-month-old infants respond primarily to the relations between limbs and, in particular, to the bilateral symmetry between the limbs.
引用
收藏
页码:554 / 563
页数:10
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