Stimulus variables which affect the concordance of visual and manipulative exploration in six-month-old infants. 1977

D Steele, and D R Pederson

In Experiment I, 26-week-old infants were repeatedly exposed to 1 object and then shown a second object that was different in color or that was different in shape and texture. During repeated exposures, infants looked at an manipulated the object less, but response latencies did not change. Looking and manipulation increased upon introduction of the novel object in the shape and texture change condition. The novel object in the color change condition elicited an increase in looking but not in manipulation. The purpose of Experiment II was to determine if the coordination of visual and manipulative exploration in the shape and texture change condition was primarily due to the new tactile information or because of the introduction of more than 1 physical change. In this experiment, the novel object differed either in shape or in texture, For both conditions, there was a decline in looking and manipulation times during familiarization and recovery of novel objects for both looking and manipulation. It was concluded that either shape or texture information is sufficient to coordinate visual and manipulative differential responding.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D008297 Male Males
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D003118 Color Perception Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary. Color Perceptions,Perception, Color,Perceptions, Color
D004192 Discrimination, Psychological Differential response to different stimuli. Discrimination, Psychology,Psychological Discrimination
D005106 Exploratory Behavior The tendency to explore or investigate a novel environment. It is considered a motivation not clearly distinguishable from curiosity. Curiosity,Novelty-Seeking Behavior,Behavior, Exploratory,Behavior, Novelty-Seeking,Behaviors, Exploratory,Behaviors, Novelty-Seeking,Curiosities,Exploratory Behaviors,Novelty Seeking Behavior,Novelty-Seeking Behaviors
D005260 Female Females
D005403 Fixation, Ocular Positioning and accommodation of eyes that allows the image to be brought into place on the FOVEA CENTRALIS of each eye. Focusing, Ocular,Ocular Fixation,Eye Gaze,Eye Gazes,Gaze, Eye,Gazes, Eye,Ocular Focusing
D005556 Form Perception The sensory discrimination of a pattern, shape, or outline. Contour Perception,Contour Perceptions,Form Perceptions,Perception, Contour,Perception, Form,Perceptions, Contour,Perceptions, Form
D006185 Habituation, Psychophysiologic The disappearance of responsiveness to a repeated stimulation. It does not include drug habituation. Habituation (Psychophysiology),Habituation, Psychophysiological,Psychophysiologic Habituation,Psychophysiological Habituation,Habituations (Psychophysiology)

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