Skip to main content
bioRxiv
  • Home
  • About
  • Submit
  • ALERTS / RSS
Advanced Search
New Results

Hippocampal-like network dynamics underlie avian sharp wave-ripples

View ORCID ProfileHamed Yeganegi, View ORCID ProfileHarald Luksch, View ORCID ProfileJanie M. Ondracek
doi: https://doi.org/10.1101/825075
Hamed Yeganegi
1Chair of Zoology, School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 4, 85354 Freising-Weihenstephan, Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Hamed Yeganegi
Harald Luksch
1Chair of Zoology, School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 4, 85354 Freising-Weihenstephan, Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Harald Luksch
Janie M. Ondracek
1Chair of Zoology, School of Life Sciences Weihenstephan, Technical University of Munich, Liesel-Beckmann-Straße 4, 85354 Freising-Weihenstephan, Germany
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Janie M. Ondracek
  • For correspondence: janie.ondracek@tum.de
  • Abstract
  • Full Text
  • Info/History
  • Metrics
  • Preview PDF
Loading

Abstract

Sharp wave ripples (SWR) represent one of the most synchronous population patterns in the mammalian brain. Although SWRs are highly conserved throughout mammalian evolution, the existence of SWRs in non-mammalian species remains controversial. We reexamined the existence of avian SWRs by recording the brain activity during sleep and under anesthesia in two species of birds, the zebra finch and the chicken. Electrophysiological recordings using silicon probes implanted in the avian telencephalon revealed highly dynamic switching between high and low delta phases during sleep. High delta phases were composed of large-amplitude, negative deflections (sharp waves) that coincided with a high frequency oscillation (ripple). Correlation analysis revealed that these events were highly synchronous and spanned a large anatomical range of the avian telencephalon. Finally, detailed spike analysis revealed that an increase in the population spiking activity coincided with the occurrence of SWRs, that this spiking activity occurred in specific sequences of spike patterns locked to the SWRs, and that the mean population spiking activity peaked prior to the trough of the negative deflection. These results provide the first evidence of avian SWRs during natural sleep and under anesthesia, and suggest that the evolutionary origin of SWR activity may precede the mammalian-sauropsid bifurcation.

Footnotes

  • Revised to correct author order

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
Back to top
PreviousNext
Posted October 31, 2019.
Download PDF
Email

Thank you for your interest in spreading the word about bioRxiv.

NOTE: Your email address is requested solely to identify you as the sender of this article.

Enter multiple addresses on separate lines or separate them with commas.
Hippocampal-like network dynamics underlie avian sharp wave-ripples
(Your Name) has forwarded a page to you from bioRxiv
(Your Name) thought you would like to see this page from the bioRxiv website.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Share
Hippocampal-like network dynamics underlie avian sharp wave-ripples
Hamed Yeganegi, Harald Luksch, Janie M. Ondracek
bioRxiv 825075; doi: https://doi.org/10.1101/825075
Digg logo Reddit logo Twitter logo Facebook logo Google logo LinkedIn logo Mendeley logo
Citation Tools
Hippocampal-like network dynamics underlie avian sharp wave-ripples
Hamed Yeganegi, Harald Luksch, Janie M. Ondracek
bioRxiv 825075; doi: https://doi.org/10.1101/825075

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Subject Area

  • Neuroscience
Subject Areas
All Articles
  • Animal Behavior and Cognition (3607)
  • Biochemistry (7581)
  • Bioengineering (5529)
  • Bioinformatics (20809)
  • Biophysics (10338)
  • Cancer Biology (7988)
  • Cell Biology (11647)
  • Clinical Trials (138)
  • Developmental Biology (6611)
  • Ecology (10217)
  • Epidemiology (2065)
  • Evolutionary Biology (13630)
  • Genetics (9550)
  • Genomics (12854)
  • Immunology (7925)
  • Microbiology (19555)
  • Molecular Biology (7668)
  • Neuroscience (42147)
  • Paleontology (308)
  • Pathology (1258)
  • Pharmacology and Toxicology (2203)
  • Physiology (3269)
  • Plant Biology (7051)
  • Scientific Communication and Education (1294)
  • Synthetic Biology (1952)
  • Systems Biology (5429)
  • Zoology (1119)