Journal
JOURNAL OF EXPERIMENTAL CHILD PSYCHOLOGY
Volume 102, Issue 1, Pages 122-130Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jecp.2008.02.004
Keywords
Learning and memory; Predictive tracking; Cognitive development; Object concepts
Funding
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH &HUMAN DEVELOPMENT [R01HD040432, R01HD048733] Funding Source: NIH RePORTER
- NICHD NIH HHS [R01 HD048733, R01-HD40432, R01 HD048733-03, R01 HD040432, R01 HD040432-07, R01-HD048733] Funding Source: Medline
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We investigated 4-month-olds' oculomotor anticipations when viewing occlusion stimuli consisting of a small target that moved back and forth repetitively while the center of its trajectory was occluded by a rectangular screen. We examined performance under five conditions. In the baseline condition, infants produced few predictive relative to reactive eye movements. In the full training condition, anticipations were increased in frequency following prior exposure to a target moving along a fully visible trajectory. The delay condition tested the effects of training after a 30-min interval elapsed between training and test, resulting in a return to baseline performance. However, the training effect was reinstated in the reminder condition following another brief exposure to the training stimulus prior to test. Finally, in the brief training condition, we found that the brief exposure alone was insufficient to induce the training effect. Results are interpreted in the context of learning from short-term experience and long-term memory. (c) 2008 Elsevier Inc. All rights reserved.
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