Research article summary:

Infants perception of object trajectories.

Abstract Extract:
Filling in the gaps in what humans see is a fundamental perceptual skill, but little is known about the developmental origins of occlusion perception. Three experiments were conducted with infants between 2 and 6 months of age to investigate perception ... (Full abstract text below)

Published 2003 Jan-Feb in Journal: Child Dev (Language : eng)

Full Pubmed Extract

This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:

1. Child Dev. 2003 Jan-Feb;74(1):94-108

Infants' perception of object trajectories.

Johnson SP, Bremner JG, Slater A, Mason U, Foster K, Cheshire A

Department of Psychology, Cornell University, Ithaca, NY 14853, USA. sj75@cornell.edu

Filling in the gaps in what humans see is a fundamental perceptual skill, but little is known about the developmental origins of occlusion perception. Three experiments were conducted with infants between 2 and 6 months of age to investigate perception of the continuity of an object trajectory that was briefly occluded. The pattern of results across experiments provided little evidence of veridical responses to trajectory occlusion in the youngest infants, but by 6 months, perceptual completion was more robust. Four-month-olds' responses indicated that they perceived continuity under a short duration of occlusion, but when the object was out of sight for a longer interval, they appeared to perceive the trajectory as discontinuous. These results suggest that perceptual completion of a simple object trajectory (and, by logical necessity, veridical object perception) is not functional at birth but emerges across the first several months after onset of visual experience.

PMID : 12625438 [PubMed - Indexed for MEDLINE]

This information is obtained from the National Library of Medicine (NLM). Abstract text and other information may be subject to copyright. Type "NLM copyright" into Google for more information.

Full Author Information

First Name	LastName	Initials
Scott P	Johnson	SP
J Gavin	Bremner	JG
Alan	Slater	A
Uschi	Mason	U
Kirsty	Foster	K
Andrea	Cheshire	A

Affiliation: Department of Psychology, Cornell University, Ithaca, NY 14853, USA. sj75@cornell.edu

3rd Party provider links

Click the links below to go to related 3rd party information:

MESH categories and related page links

This article was linked to the MESH categories shown on the left below. The links on the right are related Memletics pages.

Links for this article

For links to places where you can get the full text of this article see links. Note there may be a subscription or fee required for access to the full text.

New! Using similar technology to this site, we have launched find-health-articles.com, targeting over 1 million health research article abstracts.

Here are some articles related to this one (by title keywords):

Infants ability to connect gaze and emotional expression to intentional action.

The human first hypothesis: identification of conspecifics and individuation of objects in the young infant.

Developmental transition from gavage to oral feeding in the preterm infant.

Developmental changes in endogenous control of attention: the role of target familiarity on infants distraction latency.

Objects are individuals but stuff doesnt count: perceived rigidity and cohesiveness influence infants representations of small groups of discrete entities.

Inhibited and uninhibited infants 'grown up': adult amygdalar response to novelty.

Generalization of learning in three-and-a-half-month-old infants on the basis of amodal relations.

Neurobehavioral and developmental profile of very low birthweight preterm infants in early infancy.

Infants return to two-handed reaching when they are learning to walk.

Free thyroxine levels during the first weeks of life and neurodevelopmental outcome until the age of 5 years in very preterm infants.

>>> Get more research article abstracts like these, or browse abstracts.

Keywords in this article:

across, after, age, appeared, birth, briefly, completion, conducted, continuity, developmental, discontinuous, duration, emerges, evidence, experiments, filling, first, four, functional, fundamental, gaps, humans, indicated, infants, interval, investigate, known, little, logical, longer, months, more, necessity, not, object, occluded, occlusion, olds, onset, origins, out, pattern, perceived, perception, perceptual, provided, responses, results, robust, see, short, sight, simple, skill, suggest, three, trajectory, under, veridical, visual, youngest

Also, see our new free speed reading online course (beta version)