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Direct linkBertenthal, Bennett I.; Gredeback, Gustaf; Boyer, Ty W. – Child Development, 2013
Sixty infants divided evenly between 5 and 7 months of age were tested for their knowledge of object continuity versus discontinuity with a predictive tracking task. The stimulus event consisted of a moving ball that was briefly occluded for 20 trials. Both age groups predictively tracked the ball when it disappeared and reappeared via occlusion,…
Descriptors: Infants, Cognitive Development, Eye Movements, Prediction
Peer reviewedSalapatek, Philip; And Others – Child Development, 1976
Examined acuity thresholds for 1- and 2-month-old infants by presenting square wave gratings in a preference paradigm at four viewing distances. (Author/JMB)
Descriptors: Distance, Infants, Visual Acuity, Visual Perception
Peer reviewedKelton, Jeffrey J.; And Others – Child Development, 1978
A sample of 176 students in grades 2-12 were tested for visual acuity as a function of minimally resolvable red, yellow, green, and blue lines. (Author/JMB)
Descriptors: Age Differences, Color, Elementary School Students, Research
