Visual Asymmetries in Japanese Quail (Coturnix japonica) Retain a Lifelong Potential for Plasticity
Küçük Resim Yok
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Psychological Assoc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Adult Japanese quail display left-eye/right-hemisphere dominance in visually guided sexual tracking. In 2 experiments, the authors set out to answer if this functional cerebral asymmetry is modifiable by posthatch monocular deprivation, In Experiment 1, the left or the right eye of 2-day old quail were closed for 70 days. Quail were run in a left- or a right-turning runway to obtain access to a conspecific of the opposite sex. The performance of both left and right eye systems was equal. In Experiment 2, the deprived eyes of the quail were opened and the previously open eyes were closed. They were tested with the same runways. Overall, running speed was very low, but the quail showed a left-eye/right-hemisphere superiority. Altogether, these experiments evince 3 insights into cerebral asymmetries in quail. First, posthatch asymmetries of visual input can alter lateralized behavior to an important extent. Second, cerebral asymmetries could involve an interhemispheric inhibition that can be modified by epigenetic factors. Third, even long-term visual deprivation does not abolish a previously established cerebral asymmetry.
Açıklama
Anahtar Kelimeler
visually guided sexual behavior, hemispheric asymmetry, plasticity, Japanese quail
Kaynak
Behavioral Neuroscience
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
123
Sayı
4
