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Infants' Sensitivity to the Depth Cue of Height-in-the-Picture-Plane
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Arterberry, Martha E. – Infancy, 2008
Five- and 7-month-old infants' sensitivity to the pictorial depth cue of height-in-the-picture-plane was assessed. Infants were presented with 2 objects, 1 higher than the other, and their reaching was recorded under monocular and binocular viewing conditions. The results showed that both age groups reached significantly more to the lower,…
Descriptors: Infants, Depth Perception, Cues
Phenotypical Characteristics of Idiopathic Infantile Nystagmus with and without Mutations in "FRMD7"
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Thomas, Shery; Proudlock, Frank A.; Sarvananthan, Nagini; Roberts, Eryl O.; Awan, Musarat; McLean, Rebecca; Surendran, Mylvaganam; Kumar, A. S. Anil; Farooq, Shegufta J.; Degg, Chris; Gale, Richard P.; Reinecke, Robert D.; Woodruff, Geoffrey; Langmann, Andrea; Lindner, Susanne; Jain, Sunila; Tarpey, Patrick; Raymond, F. Lucy; Gottlob, Irene – Brain, 2008
Idiopathic infantile nystagmus (IIN) consists of involuntary oscillations of the eyes. The familial form is most commonly X-linked. We recently found mutations in a novel gene "FRMD7" (Xq26.2), which provided an opportunity to investigate a genetically defined and homogeneous group of patients with nystagmus. We compared clinical features and eye…
Descriptors: Visual Impairments, Eye Movements, Visual Acuity, Depth Perception
Infants' Sensitivity to Accretion and Deletion of Texture as Information for Depth at an Edge.
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Granrud, Carl E.; And Others – Child Development, 1984
A total of 20 infants either five or seven months of age viewed computer-generated random-lot displays in which accretion and deletion of texture provided the only information for contours. Infants of both age groups showed significant preferences to reach for the apparently nearer regions in the displays. (Author/RH)
Descriptors: Depth Perception, Infants, Spatial Ability, Visual Perception
Infants' Sensitivity to Boundary Flow Information for Depth at an Edge.
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Craton, Lincoln G.; Yonas, Albert – Child Development, 1988
A sample of 44 infants of five months of age showed a significant reaching preference for the apparently nearer region of a computer-generated display. This indicated that the infants were sensitive to boundary flow information for depth at an edge. (RH)
Descriptors: Cognitive Development, Depth Perception, Infants, Spatial Ability
Integration of Sequential Information for Shape Perception by Infants: A Developmental Study.
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Skouteris, H.; And Others – Child Development, 1992
Results of 3 experiments indicated that 12 month olds, but not 8 and 10 month olds, looked longer at objects of a different shape from test objects than at the test objects. Twelve month olds recognized rectilinear, but not curvilinear, forms. They recognized differences in forms for three-dimensional, but not two-dimensional, objects. (BC)
Descriptors: Age Differences, Depth Perception, Infants, Spatial Ability
Development of Sensitivity to Binocular Information for the Approach of an Object.
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Yonas, Albert; And Others – Developmental Psychology, 1978
Investigates the responsiveness of 14- and 20-week-old infants to binocular information using a stereoscopic shadow caster showing an object approaching on a collision course. (Author/SS)
Descriptors: Age Differences, Depth Perception, Infant Behavior, Infants
Self-Produced Locomotion and the Development of Responsiveness to Linear Perspective and Texture Gradients.
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Arterberry, Martha; And Others – Developmental Psychology, 1989
Results indicate that seven-month-old infants are sensitive to the depth cues of linear perspective and texture gradients. Self-produced locomotor experience is not necessary for the development of sensitivity to static-monocular depth information. (RJC)
Descriptors: Age Differences, Depth Perception, Infants, Perceptual Development
Four-Month-Old Infants' Sensitivity to Binocular and Kinetic Information for Three-Dimensional-Object Shape.
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Yonas, Albert; And Others – Child Development, 1987
A test for sensitivity to binocular disparity and a shape perception test were administered to four-month-olds. Results indicated that disparity-sensitive infants could perceive three-dimensional-object shape from kinetic and binocular depth information. (PCB)
Descriptors: Depth Perception, Dimensional Preference, Eye Fixations, Infants
Perceived Movement in the Visual Crib.
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Ball, William; Dibble, Ann – Journal of Genetic Psychology, 1980
Results of two studies were consistent with the view that 3-month-old infants perceive movement in depth during their own movement. They can move to avoid a surface just prior to contacting it. (Author/RH)
Descriptors: Depth Perception, Infant Behavior, Infants, Motion
The Influence of Context on Amodal Completion in 5- and 7-Month-Old Infants
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Kavsek, Michael – Journal of Cognition and Development, 2004
Several investigations have shown that young infants perceive the unity of a center-occluded object when the visible ends of the object undergo common motion but not when the object remains stationary. This study is an extension of earlier investigations on object unity in that it assesses amodal completion of stationary circles in which one half…
Descriptors: Infants, Visual Stimuli, Geometric Concepts, Cues
A Comparison of Monocular and Binocular Depth Perception in 5- and 7-Month-Old Infants.
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Granrud, Carl E.; And Others – Journal of Experimental Child Psychology, 1984
Compares monocular depth perception with binocular depth perception in five- to seven-month-old infants. Reaching preferences (dependent measure) observed in the monocular condition indicated sensitivity to monocular depth information. Binocular viewing resulted in a far more consistent tendency to reach for the nearer object. (Author)
Descriptors: Cognitive Processes, Comparative Analysis, Depth Perception, Infant Behavior
Perception of Object Unity in Young Infants: The Roles of Motion, Depth, and Orientation.
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Johnson, Scott P.; Aslin, Richard N. – Cognitive Development, 1996
Two experiments examined the effects of common motion, background texture, and orientation on four-month olds' perception of unity of a partially occluded rod. Results indicated that infants' perception of object unity is not dependent on a single visual cue but on a variety of cues including motion, interposition, depth cues, background texture,…
Descriptors: Depth Perception, Infants, Motion, Object Permanence
Perception of Auditory-Visual Distance Relations by 5-Month-Old Infants.
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Pickens, Jeffrey – Developmental Psychology, 1994
Sixty-four infants viewed side-by-side videotapes of toy trains (in four visual conditions) and listened to sounds at increasing or decreasing amplitude designed to match one of the videos. Results suggested that five-month olds were sensitive to auditory-visual distance relations and that change in size was an important visual depth cue. (MDM)
Descriptors: Auditory Discrimination, Cues, Depth Perception, Distance
Sensitivity of 5- and 7-Month-Old Infants to Pictorial Depth Information.
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Kaufmann, Ruth; And Others – Journal of Experimental Child Psychology, 1981
An Ames static trapezoidal window was used to test infants' responsiveness to pictorial depth. Sensitivity to the pictorial information for depth that is present in the trapezoidal window appears to develop after the age of 22 weeks. (Author/DB)
Descriptors: Age Differences, Depth Perception, Infant Behavior, Infants
Motion and Edge Sensitivity in Perception of Object Unity
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Smith, W. Carter; Johnson, Scott P.; Spelke, Elizabeth S. – Cognitive Psychology, 2003
Although much evidence indicates that young infants perceive unitary objects by analyzing patterns of motion, infants' 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 adults' and infants'…
Descriptors: Intervals, Infants, Motion, Experiments
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