title: Visual motion priors differ for infants and mothers.
abstract: Visual motion direction ambiguities due to edge-aperture interaction might be resolved by speed priors, but scant empirical data support this hypothesis. We measured optic flow and gaze positions of walking mothers and the infants they carried. Empirically derived motion priors for infants are vertically elongated and shifted upward relative to mothers. Skewed normal distributions fitted to estimated retinal speeds peak at values above 20°/sec.
authors: Center for Computational Neuroscience and Neural Technology, Boston University, Boston, MA 02215, U.S.A. fraudies@bu.edu.
authors: Florian
authors: F
authors: Raudies
authors: Rick O
authors: RO
authors: Gilmore
mesh_terms: D005133:Eye Movements / Q000502:physiology*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009035:Mothers / Q000523:psychology*; D009038:Motion; D009039:Motion Perception / Q000502:physiology*; D057849:Optic Flow; D010775:Photic Stimulation; D025341:Principal Component Analysis; D016138:Walking / Q000523:psychology