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Influence of Natural Asymmetric Embryonic Visual Afferentation on the Neuronal Activations in the Caudomedial Mesopallium during the Freezing Response in Altricial Nestlings

Authors
  • Korneeva, E. V.1
  • Tiunova, A. A.2
  • Alexandrov, L. I.1
  • Golubeva, T. B.3
  • 1 Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia , Moscow (Russia)
  • 2 Anokhin Institute of Normal Physiology, Moscow, 125315, Russia , Moscow (Russia)
  • 3 Moscow State University, Moscow, 119992, Russia , Moscow (Russia)
Type
Published Article
Journal
Doklady Biological Sciences
Publisher
Pleiades Publishing
Publication Date
Mar 01, 2021
Volume
497
Issue
1
Pages
62–64
Identifiers
DOI: 10.1134/S0012496621020046
Source
Springer Nature
Keywords
License
Yellow

Abstract

AbstractThe study was designed to investigate the role of asymmetric prenatal visual stimulation on the activation of caudomedial mesopallium (CMM) neurons in nine-day-old pied flycatcher nestlings during auditory-guided freezing. Four groups of nestlings were studied: groups 1 and 2 included nestlings with normal vision and visually deprived, respectively, that were incubated and hatched in normal light environment; groups 3 and 4, nestlings with normal vision and visually deprived, respectively, that were incubated and hatched in the dark. The eyes of visually deprived nestlings were covered with non-transparent cups 2 h before the experiment. C-Fos expression was studied. It was shown that densities of neurons activated during freezing response differed in right vs. left CMM only in the group of visually deprived nestlings incubated under light. This suggests that the presence or absence of the asymmetric embryonic visual afferentation may result in the development of different strategies of the visual system integration into defense behavior.

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