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Author Fabre-Thorpe, M.; Fagot, J.; Lorincz, E.; Levesque, F.,; Vauclair, J. openurl 
  Title Laterality in cats: Paw preference and performance in a visuomotor activity. Type Journal Article
  Year 1993 Publication Cortex Abbreviated Journal Cortex  
  Volume 29 Issue Pages 15-24  
  Keywords  
  Abstract In a two-choice discrimination paradigm, a bottlenose dolphin discriminated relational dimensions between visual numerosity stimuli under monocular viewing conditions. After prior binocular acquisition of the task, two monocular test series with different number stimuli were conducted. In accordance with recent studies on visual lateralization in the bottlenose dolphin, our results revealed an overall advantage of the right visual field. Due to the complete decussation of the optic nerve fibers, this suggests a specialization of the left hemisphere for analysing relational features between stimuli as required in tests for numerical abilities. These processes are typically right hemisphere-based in other mammals (including humans) and birds. The present data provide further evidence for a general right visual field advantage in bottlenose dolphins for visual information processing. It is thus assumed that dolphins possess a unique functional architecture of their cerebral asymmetries.  
  Address Bottlenose dolphin; Hemispheric specialization; Monocular vision; Numerical ability  
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  Call Number Equine Behaviour @ team @ Serial 5367  
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Author Corballis, M.C. url  doi
openurl 
  Title Of mice and men – and lopsided birds Type Journal Article
  Year 2008 Publication Cortex Abbreviated Journal  
  Volume 44 Issue 1 Pages 3-7  
  Keywords Cerebral asymmetry; Handedness; Evolution; Laterality  
  Abstract The article by Zucca and Sovrano (2008, this issue) represents part of a new wave of studies of lateralization in nonhuman species. This work is often in conflict with earlier studies of human cerebral asymmetry and handedness, and the associated claim that these asymmetries are uniquely human, and perhaps even a result of the “speciation event” that led to modern humans. It is now apparent that there are close parallels between human and nonhuman asymmetries, suggesting that they have ancient roots. I argue that asymmetries must be seen in the context of a bilaterally symmetrical body plan, and that there is a balance to be struck between the adaptive advantages of symmetry and asymmetry. In human evolution, systematic asymmetries were incorporated into activities that probably are unique to our species, but the precursors of these asymmetries are increasingly evident in other species, including frogs, fish, birds, and mammals – especially primates.  
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  Call Number Equine Behaviour @ team @ Serial 4634  
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