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survival with an asymmetrical brain: advantages and disadvantages of cerebral lateralization
It is argued that the alignment of the direction of behavioral asymmetries at the population level arises as an “evolutionarily stable strategy” under “social” pressures occurring when individually asymmetrical organisms must coordinate their behavior with the behavior of other asymmetrical organism of the same or different species.
Advantages of having a lateralized brain
- L. Rogers, P. Zucca, G. Vallortigara
- Psychology, BiologyProceedings of the Royal Society of London…
- 7 December 2004
It is shown in the domestic chick that cerebral lateralization is associated with an enhanced ability to perform two tasks simultaneously: finding food and being vigilant for predators.
The Origins of Cerebral Asymmetry: A Review of Evidence of Behavioural and Brain Lateralization in Fishes, Reptiles and Amphibians
Comparative Neuropsychology of the Dual Brain: A Stroll through Animals' Left and Right Perceptual Worlds
- G. Vallortigara
- Psychology, BiologyBrain and Language
- 15 June 2000
Data is presented showing how preferential use of the left and right eyes influences visual discrimination learning and detour behavior in chicks; similarities with detour tests performed in fish and evidence for asymmetries in eye use in animals with larger binocular overlap are discussed.
Population lateralisation and social behaviour: A study with 16 species of fish
Investigation of turning responses in 16 species of fish faced with a vertical-bar barrier through which a learned dummy predator was visible provides some support to the Rogers (1989) hypothesis that population lateralisation might have been developed in relation to the need to maintain coordination among individuals in behaviours associated with social life.
Left–right asymmetries of behaviour and nervous system in invertebrates
The evolutionary psychology of left and right: costs and benefits of lateralization.
- G. Vallortigara
- Biology, PsychologyDevelopmental psychobiology
- 1 September 2006
It is shown that alignment of lateralization at the population level may arise as an "evolutionarily stable strategy" when individually asymmetrical organisms must coordinate their behavior with that of other asymmetrical organism.
Lateralization of detour behaviour in poeciliid fish: The effect of species, gender and sexual motivation
Origins of the left & right brain.
Research into right handedness, or left brain dominance, in frogs, whales, and baboons is described and the relationship between competing issues requiring attention and avoiding predators and the lateralization of the brain is examined.