Processing of Form Stimuli Presented Unilaterally in Humans, Chimpanzees (Pan troglodytes), and Monkeys (Macaca mulatta )

Visual forms were unilaterally presented using a video-task paradigm to 10 humans, 3 chimpanzees, and 2 rhesus monkeys to determine whether hemispheric advantages existed in the processing of these stimuli. Both accuracy and reaction time served as dependent measures. For the chimpanzees, a signific...

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Bibliographic Details
Published in:Behavioral neuroscience 1990-08, Vol.104 (4), p.577-582
Main Authors: Hopkins, William D, Washburn, David A, Rumbaugh, Duane M
Format: Article
Language:English
Subjects:
Adult
Animal
Animals
Biological and medical sciences
Brain
Chimpanzees
Cognition & reasoning
Dominance, Cerebral
Female
Functional Laterality
Fundamental and applied biological sciences. Psychology
Humans
Lateral Dominance
Life Sciences (General)
Macaca mulatta
Macaca mulatta - psychology
Male
Monkeys
Monkeys & apes
Pan troglodytes
Pan troglodytes - psychology
Pattern Recognition, Visual
Psychomotor Performance
Reaction Time
Space life sciences
Species Differences
Species Specificity
Stimulus Presentation Methods
Vertebrates: digestive system
Visual Perception
Citations: Items that cite this one
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Summary:Visual forms were unilaterally presented using a video-task paradigm to 10 humans, 3 chimpanzees, and 2 rhesus monkeys to determine whether hemispheric advantages existed in the processing of these stimuli. Both accuracy and reaction time served as dependent measures. For the chimpanzees, a significant right hemisphere advantage was found within the first 3 test sessions. The humans and monkeys failed to show a hemispheric advantage as determined by accuracy scores. Analysis of reaction time data revealed a significant left hemisphere advantage for the monkeys. A Visual Half-Field × Block interaction was found for the chimpanzees, with a significant left visual field advantage in Block 2, whereas a right visual field advantage was found in Block 4. In the human subjects, a left visual field advantage was found in Block 3 when they used their right hands to respond. The results are discussed in relation to recent reports of hemispheric advantages for nonhuman primates.
ISSN:0735-7044
1939-0084
DOI:10.1037/0735-7044.104.4.577