Visuospatial bias in pigeons and Clark’s nutcrackers

Debbie M Kelly, Izabela Szelest
Symposium Talk
Last modified: 2008-05-22

Abstract


Humans routinely show a slight left-sided visuospatial bias, over-selecting for objects on their left in comparison to their right, when engaging in cancellation tasks. This asymmetry has been explained by reference to the superiority of the right hemisphere for spatially guided tasks. Recent research has suggested that birds, like humans, may show a similar left-sided visuospatial bias. This finding has put into question the role of the corpus callosum in the emergence of spatial asymmetries. Our study examines whether a left-sided visuospatial bias is evident in two species of bird, the pigeon and the Clark’s nutcracker.

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