AI Article Synopsis
- Perceptual and behavioral asymmetry has been noted in various vertebrate and invertebrate species, dating back over 500 million years.
- Marine mammals, including dolphins, show hemispheric lateralization in activities like foraging and problem-solving.
- A study on a female Indo-Pacific bottlenose dolphin revealed no accuracy difference between binocular and monocular vision, but she displayed a clear left eye advantage in reaction time and exhibited distinct movement pattern preferences during stimulus discrimination.
Article Abstract
Perceptual and behavioral asymmetry has been observed in a wide range of vertebrate and invertebrate species with its origin estimated to go back over 500 million years. Previously, hemispheric lateralization in marine mammals has been recorded during foraging, parental care, preferred swimming direction as well as when solving cognitive challenges. Visual laterality has been demonstrated in preferred eye use and performance accuracy. A female Indo-Pacific bottlenose dolphin was trained to associate eight pairs of non-identical visual stimuli. Her performance was tested and compared under binocular and monocular conditions. No significant difference was found in accuracy, while a clear left eye advantage was demonstrated in reaction time. In addition, behavioral asymmetry was observed in movement pattern preference during the stimulus discrimination.
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| http://dx.doi.org/10.1016/j.beproc.2019.02.003 | DOI Listing |
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