Infants’ Knowledge of Occluded Objects: Evidence of Early Spatiotemporal Representations

摘要: Infants' ability to track temporarily occluded objects that moved on circular trajectories was investigated in 20 infants using a longitudinal design. They were first seen at 6 months and then every 2nd month until the end of their 1st year. Infants presented with occlusion events covering 20% target's trajectory (effective interval ranged from 500–4,000 msec). Gaze measured an ASL 504 infrared eye-tracking system. Results effectively demonstrate age can represent spatiotemporal dynamics objects. all ages tested able predict, under certain conditions, when where object would reappear after occlusion. gaze accurately position going scaled timing current duration. The average rate predictive crossings increased These results are discussed as 2-factor process. Successful predictions dependent strong representations, themselves richness information available during encoding graded representations.