Lateralized scratching in chimpanzees (Pan troglodytes): Evidence of a functional asymmetry during arousal
| Autor: | William D. Hopkins, David A. Leavens, Hani Freeman, Jamie L. Russell, Caroline Griffis, Elizabeth A. M. Reynolds |
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| Rok vydání: | 2006 |
| Předmět: |
Male
Periodicity medicine.medical_specialty Pan troglodytes Hand preference Audiology Autonomic Nervous System Social Environment Functional Laterality Article Arousal Developmental psychology medicine Animals Right hemisphere General Psychology Behavior Animal Brain Videotape Recording Hand use Scratching Autonomic nervous system Touch Laterality Female Functional asymmetry Psychology Psychomotor Performance |
| Zdroj: | Emotion. 6:553-559 |
| ISSN: | 1931-1516 1528-3542 |
| DOI: | 10.1037/1528-3542.6.4.553 |
| Popis: | This study evaluated laterality in scratching by chimpanzees (n = 89) during socially arousing circumstances. Hand use and the side of the body scratched was recorded during a baseline and experimental condition. In the experimental condition, chimpanzees were shown a video of other conspecifics sharing, fighting over, and consuming a watermelon. Self-touches were categorized as either rubs or scratches. The chimpanzees showed a significant right hand bias for rubbing and also significantly directed the rubs to the right side of the body. For scratching, the chimpanzees showed no hand preference but a significant bias for scratching on the left side of the body. These results support the view that the right hemisphere regulates the autonomic nervous system during arousal. |
| Databáze: | OpenAIRE |
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