Multiple dimension processing by newborns

Laplante, David P.; Vorkapich, L.; Orr, R. Robert; Neville, K. E.

doi:10.1080/016502500383368

Cited by 1 publication

(2 citation statements)

References 32 publications

(50 reference statements)

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“…This finding implies highly efficient mechanisms that are functional at birth to rapidly detect and discriminate salient visual stimuli, and to subsequently learn characteristics of these stimuli (Slater et al, 1998;Slater, Bremner, Johnson, Sherwood, Hayes & Brown, 2000). Moreover, neonates have been shown to process compound stimuli as composed of a combination of attributes, indicating that at birth, infants attend to multiple aspects of individual displays (LaPlante et al, 2000;Slater, Brown & Badenoch, 1997).…”

Section: The Second Assumption: Learning Object Properties Derives Frmentioning

confidence: 89%

“…It has been claimed that infants younger than 4 to 6 weeks of age lack cortical mechanisms subserving motion discrimination, a claim based in part on infants' preferential looking toward one side of a stimulus containing regions moving in opposite directions vs a uniform pattern on the other side (Wattam-Bell, 1991, 1996a. In contrast to the Wattam-Bell experiments, evidence suggesting early motion sensitivity was obtained by LaPlante, Orr, Neville, Vorkapich and Sasso (1996) and Laplante, Orr, Vorkapich and Neville (2000) who demonstrated discrimination of translational and rotational direction in neonates, and Náñez (1988), who reported avoidance responses to looming stimuli in 3-week-olds. These apparently conflicting findings may be reconciled by considering that evidence of motion sensitivity in a particular experimental paradigm is strongly dependent on stimulus characteristics (e.g.…”

Section: The Model Assumptionsmentioning

confidence: 99%

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Learning to perceive object unity: a connectionist account

Mareschal

Johnson

2002

Developmental Science

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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 object or 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.

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