Limits to infants' knowledge of objects: the case of magical appearance

Article Abstract:

The responses of infants to the magical appearance of an object were investigated. Sixty-seven normal, full-term infants were subjected to an experiment and their responses to the magical versus expected appearances and disappearances of an object were analyzed. Results showed that infants view the magical disappearance of an object as an expected event but do not exhibit the same response in the case of magical appearance. It was concluded that infants' perception of objects differs significantly from that of adults.

Infant psychology, Appearance (Philosophy)

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Infants' individuation and enumeration of actions

Article Abstract:

Infants individuate and enumerate physical actions in a sequence and through a general mechanism depending on the nature of entities over which it will operate. The ability of six month old infants to individuate and enumerate sequential jumps of a puppet is analyzed. Infants successfully discriminated two-jump from three-jump sequences. Actions whose temporal boundaries are demarcated by contrast of motion and no motion are easy to individuate and enumerate.

Analysis, Cognition, Behavioral assessment

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Individuation of actions from continuous motion

Article Abstract:

A study on how infants parse motion into distinct actions show that infants can perceptually discriminate different actions done by a puppet. They can individuate and enumerate sequences in actions which are separated by brief motionless pauses. However, they cannot individuate actions that are part of a continuous stream of motion. These results imply that infants can use repeating patterns of motion in the perceptual input to define action boundaries.

Individuation (Psychology), Motion perception (Vision), Motion perception, Individuation

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