Dynamics of spontaneous local field potentials in the anterior claustrum of freely moving rats

Maciej M. Jankowski, Md Nurul Islam, Shane M. O'Mara*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The functions of the claustrum are not well understood. Few studies explore its electrophysiological properties in awake animals. Here, we address this lacuna by recording spontaneous local field potential (LFP) activity in the anterior claustrum of rats freely exploring open field environments under differing conditions (light; dark; with, without an object present). We found three peaks in the LFP power spectral density (PSD) at 1–4 Hz, 4–7 Hz and 8–12 Hz. Two of those peaks, in the 1–4 Hz and 8–12 Hz bands, were present in almost all recordings and dominated the power spectrum. The power or frequency of detected peaks in some cases changed depending on the environmental context. The power of detected frequency bands of spontaneous LFPs showed varied patterns of distribution across the experimental arena. The 8–12 Hz band was predominantly found at running speeds of up to 6 cm/s. We suggest that spontaneous LFP activity in the anterior claustrum depends on the environmental context and running speed of the animal.

Original languageAmerican English
Pages (from-to)101-117
Number of pages17
JournalBrain Research
Volume1677
DOIs
StatePublished - 15 Dec 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017

Keywords

  • Anterior claustrum
  • Local field potential
  • Rat

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