Motion and edge sensitivity in perception of object unity
David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
Although much evidence indicates that young infants perceive unitary objects by analyzing patterns of motion, infantsÕ abilities to perceive object unity by analyzing Gestalt properties and by integrating distinct views of an object over time are in dispute. To address these controversies, four experiments investigated adultsÕ and infantsÕ perception of the unity of a center-occluded, moving rod with misaligned visible edges. Both alignment information and depth information aﬀected adultsÕ and infantsÕ perception of object unity in similar ways, and infants perceived object unity by integrating information about object features over time. However, infants perceived a moving, misaligned, three-dimensional object as indeterminate in its connectedness, whereas adults perceived it as connected behind the occluder. These ﬁndings indicate that the eﬀectiveness of common motion in specifying uniﬁed surfaces across an occluder is reduced by misalignment of edges. Alignment information enhances perception of object unity either by serving directly as information for unity or by optimizing the detectability of motion-carried information for unity. In addition, young infants are able to retain information about edge orientation over short intervals in determining connectedness via a process of spatiotemporal integration. Ó 2003 Elsevier Science (USA). All rights reserved.
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
|Through your library||
References found in this work BETA
No references found.
Citations of this work BETA
Kristin Shutts, Kirsten F. Condry, Laurie R. Santos & Elizabeth S. Spelke (2009). Core Knowledge and its Limits: The Domain of Food. Cognition 112 (1):120-140.
Alan Langus, Amanda Saksida, Daniela Braida, Roberta Martucci, Mariaelvina Sala & Marina Nespor (2015). Spontaneous Object and Movement Representations in 4-Month-Old Human Infants and Albino Swiss Mice. Cognition 137:63-71.
Similar books and articles
P. W. Jusczyk, S. P. Johnson, E. S. Spelke & L. J. Kennedy (1999). Synchronous Change and Perception of Object Unity: Evidence From Adults and Infants. Cognition 71 (3):257-88.
Philip J. Kellman & Elizabeth S. Spelke (1983). Perception of Partly Occluded Objects in Infancy* 1. Cognitive Psychology 15 (4):483â524.
In Kyeong Kim & Elizabeth S. Spelke, Infants' Sensitivity to Effects of Gravity on Visible Object Motion.
Jose Bermudez (2007). The Object Properties Model of Object Perception: Between the Binding Model and the Theoretical Model. Journal of Consciousness Studies 14 (s 9-10):43-65.
A. H. Wertheim (1999). Motion Percepts: “Sense Specific,” “Kinematic,” or . . . ? Behavioral and Brain Sciences 22 (2):338-340.
Athanassios Raftopoulos & Vincent C. Müller (2006). Nonconceptual Demonstrative Reference. Philosophy and Phenomenological Research 72 (2):251-285.
Frank Keil (2008). Biases Towards Internal Features in Infants' Reasoning About Objects. Cognition 107 (2):420-432.
Casey O'Callaghan (2008). Object Perception: Vision and Audition. Philosophy Compass 3 (4):803-829.
John Campbell (2007). What's the Role of Spatial Awareness in Visual Perception of Objects? Mind and Language 22 (5):548–562.
Glyn W. Humphreys & M. Jane Riddoch (2007). How to Define an Object: Evidence From the Effects of Action on Perception and Attention. Mind and Language 22 (5):534–547.
Added to index2010-12-22
Total downloads14 ( #184,535 of 1,725,989 )
Recent downloads (6 months)6 ( #118,705 of 1,725,989 )
How can I increase my downloads?