The ontogeny of visual lateralization in pigeons might underlie miRNA-regulated Trk receptor expression
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چکیده
منابع مشابه
Visual lateralization and homing in pigeons.
The aim of our study was to analyse the components of visual lateralization in pigeon homing, a large-scale spatial task. In a series of 13 releases, birds were tested as binocular controls or monocularly with the right or left-eye covered. Occlusion of either eye had a significant effect on initial orientation and homing performance. Vanishing bearings were deflected to the side of the open ey...
متن کاملAscending and descending mechanisms of visual lateralization in pigeons.
Brain asymmetries are a widespread phenomenon among vertebrates and show a common behavioural pattern. The right hemisphere mediates more emotional and instinctive reactions, while the left hemisphere deals with elaborated experience-based behaviours. In order to achieve a lateralized behaviour, each hemisphere needs different information and therefore different representations of the world. Ho...
متن کاملCryptochrome 1b: a possible inducer of visual lateralization in pigeons?
The visual system of adult pigeons shows a lateralization of object discrimination with a left hemispheric dominance on the behavioural, physiological and anatomical levels. The crucial trigger for the establishment of this asymmetry is the position of the embryo inside the egg, which exposes the right eye to light falling through the egg shell. As a result, the right-sided retina is more stron...
متن کاملAsymmetry pays: visual lateralization improves discrimination success in pigeons
Functional cerebral asymmetries, once thought to be exclusively human, are now accepted to be a widespread principle of brain organization in vertebrates [1]. The prevalence of lateralization makes it likely that it has some major advantage. Until now, however, conclusive evidence has been lacking. To analyze the relation between the extent of cerebral asymmetry and the degree of performance in...
متن کاملLateralization of magnetic compass orientation in pigeons.
The aim of our study was to test for lateralization of magnetic compass orientation in pigeons. Having shown that pigeons are capable of learning magnetic compass directions in an operant task, we wanted to know whether the brain hemispheres contribute differently and how the lateralization pattern relates to findings in other avian species. Birds that had learnt to locate food in an operant ch...
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ژورنال
عنوان ژورنال: IBRO Reports
سال: 2019
ISSN: 2451-8301
DOI: 10.1016/j.ibror.2019.07.282