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Four‐Month‐Olds' Discrimination of Optic Flow Patterns Depicting Different Directions of Observer Motion
Author(s) -
Gilmore Rick O.,
Rettke Heather J.
Publication year - 2003
Publication title -
infancy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 69
eISSN - 1532-7078
pISSN - 1525-0008
DOI - 10.1207/s15327078in0402_02
Subject(s) - observer (physics) , motion (physics) , optical flow , perception , psychology , heading (navigation) , flow (mathematics) , motion perception , computer vision , communication , artificial intelligence , computer science , neuroscience , physics , geodesy , geography , quantum mechanics , mechanics , image (mathematics)
One of the most powerful sources of information about spatial relationships available to mobile organisms is the pattern of visual motion called optic flow. Despite its importance for spatial perception and for guiding locomotion, very little is known about how the ability to perceive one's direction of motion, or heading, from optic flow develops early in life. In this article, we report the results of 3 experiments that tested the abilities of 4‐month‐old infants to discriminate optic flow patterns simulating different directions of self‐motion. The combined results from 2 different experimental paradigms suggest that 4‐month‐olds discriminate optic flow patterns that simulate only large (> 32°) changes in the direction of the observer's motion through space. This suggests that prior to the onset of locomotion, there are limitations on infants' abilities to process patterns of optic flow related to self‐motion.