Activation of the Tectofugal Visual System in Pied Flycatcher Nestlings at the Early Stages of Development of Feeding Behavior Guided by Diffuse Photosensitivity

Autor: Aleksandrov Li, A. A. Tiunova, Korneeva Ev, T. B. Golubeva, Konstantin V. Anokhin
Rok vydání: 2011
Předmět:
Zdroj: Neuroscience and Behavioral Physiology. 41:765-771
ISSN: 1573-899X
0097-0549
Popis: Immunohistochemical detection of c-Fos protein on serial frontal sections of pied flycatcher nestling brains was used to map visual structures involved in the sensory support of the early forms of feeding behavior. Quantitative analysis of c-Fos protein content was performed in the higher representations of the thalamofugal (Wulst) and tectofugal (entopallium) visual projections in visually directed feeding behavior in six-day-old nestlings with diffuse photosensitivity. Feeding behavior-evoked induction of c-Fos was not seen in the Wulst area, which is involved in feeding integration in adult bifoveal birds. Induction of c-Fos was seen in the ventral area of the entopallium, whose neurons are known from published data to be sensitive to changes in illumination. The entopallium of six-day-old nestlings showed asymmetry in evoked c-Fos expression, probably reflecting developmental asymmetry typical of the embryonic period in birds.
Databáze: OpenAIRE
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