Learning to perceive object unity: a connectionist account

被引:26
作者
Mareschal, D
Johnson, SP
机构
[1] Univ London Birkbeck Coll, Sch Psychol, Ctr Brain & Cognit Dev, London WC1E 7HX, England
[2] Cornell Univ, Dept Psychol, Ithaca, NY 14853 USA
关键词
D O I
10.1111/1467-7687.t01-1-00217
中图分类号
B844 [发展心理学(人类心理学)];
学科分类号
040202 ;
摘要
To explore questions of how human infants begin to perceive partly occluded objects, we devised two connectionist models of perceptual development. The models were endowed with an existing ability to detect several kinds of visual information that have been found important in infants' and adults' perception of object unity (motion, co-motion, common motion, relatability, parallelism, texture and T-junctions). They were then presented with stimuli consisting of either one or two objects and an occluding screen. The models' task was to determine whether the objector objects were joined when such a percept was ambiguous, after specified amounts of training with events in which a subset of possible visual information was provided. The model that was trained in an enriched environment achieved superior levels of performance and was able to generalize veridical percepts to a wide range of novel stimuli. Implications for perceptual development in humans, current theories of development and origins of knowledge are discussed.
引用
收藏
页码:151 / 172
页数:22
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