Bertenthal B I, Proffitt D R, Cutting J E
J Exp Child Psychol. 1984 Apr;37(2):213-30. doi: 10.1016/0022-0965(84)90001-8.
Two experiments assessed infant sensitivity to figural coherence in point-light displays moving as if attached to the major joints of a walking person. Experiment 1 tested whether 3- and 5-month-old infants could discriminate between upright and inverted versions of the walker in both moving and static displays. Using an infant-control habituation paradigm, it was found that both ages discriminated the moving but not the static displays. Experiment 2 was designed to clarify whether or not structural invariants were extracted from these displays. The results revealed that (1) moving point-light displays with equivalent motions but different topographic relations were discriminated while (2) static versions were not, and (3) arrays that varied in the amount of motion present in different portions of the display were also not discriminated. These results are interpreted as indicating that young infants are sensitive to figural coherence in displays of biomechanical motion.
两项实验评估了婴儿对点光显示中图形连贯性的敏感度，这些点光显示的移动方式就好像附着在一个行走者的主要关节上。实验1测试了3个月和5个月大的婴儿能否在动态和静态显示中区分直立和倒立的行走者版本。使用婴儿对照习惯化范式，发现两个年龄段的婴儿都能区分动态显示，但不能区分静态显示。实验2旨在阐明是否从这些显示中提取了结构不变量。结果表明：（1）具有等效运动但地形关系不同的动态点光显示能被区分，而（2）静态版本则不能，并且（3）在显示的不同部分中运动程度不同的阵列也不能被区分。这些结果被解释为表明幼儿对生物力学运动显示中的图形连贯性敏感。
