Lizards assess complex social signals by lateralizing colour but not motion detection

@article{Batabyal2018LizardsAC,
  title={Lizards assess complex social signals by lateralizing colour but not motion detection},
  author={Anuradha Batabyal and Maria Thaker},
  journal={Journal of Experimental Biology},
  year={2018},
  volume={221}
}
ABSTRACT Vertebrates lateralize many behaviours including social interactions. Social displays typically comprise multiple components, yet our understanding of how these are processed comes from studies that typically examine responses to the dominant component or the complex signal as a whole. Here, we examined laterality in lizard responses to determine whether receivers separate the processing of motion and colour signal components in different brain hemispheres. In Psammophilus dorsalis… 
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References

SHOWING 1-10 OF 40 REFERENCES
Flamboyant sexual signals: multiple messages for multiple receivers
Receiver sex differences in visual response to dynamic motion signals in Sceloporus lizards
TLDR
It is demonstrated that physical differences in dynamic and complex visual signals exhibited during different social contexts (i.e., territorial and courtship contexts) can closely match sex differences in visual responses.
Signalling with physiological colours: high contrast for courtship but speed for competition
Selection for Social Signalling Drives the Evolution of Chameleon Colour Change
TLDR
It is shown that evolutionary shifts in capacity for colour change in southern African dwarf chameleons (Bradypodion spp.) are associated with increasingly conspicuous signals used in male contests and courtship, supporting the view that transitory display traits should be under strong selection for signal detectability.
Aggression in females is also lateralized: left-eye bias during aggressive courtship rejection in lizards
Species recognition of color and motion signals in Anolis grahami: evidence from responses to lizard robots
TLDR
These findings implicate both morphology and behavior as functional components of social signaling in A. grahami, thus underscoring the complex, multicomponent nature of anoline displays.
Fighting from the Right Side of the Brain: Left Visual Field Preference during Aggression in Free-Ranging Male Tree Lizards (Urosaurus ornatus)
TLDR
Results are consistent with the hypothesis that aggression is lateralized to the right hemisphere, and one of only a few examples of laterality of brain function demonstrated in a free-ranging vertebrate.
Lateralization of displays during aggressive and courtship behaviour in the Siamese fighting fish (Betta splendens)
Lateralization in the predatory behaviour of the common wall lizard (Podarcis muralis)
Lateralization When Monitoring Predators in the Wild: A Left Eye Control in the Common Wall Lizard (Podarcis muralis)
TLDR
Field findings support a left eye–mediated observation of the predator in P. muralis lizards, which confirms previous findings in this and other species.
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