Different Simultaneous Sleep States in the Hippocampus and Neocortex.

ABSTRACT:

Study objectives

Investigators assign sleep-waking states using brain activity collected from a single site, with the assumption that states occur at the same time throughout the brain. We sought to determine if sleep-waking states differ between two separate structures: the hippocampus and neocortex.

Methods

We measured electrical signals (electroencephalograms and electromyograms) during sleep from the hippocampus and neocortex of five freely behaving adult male rats. We assigned sleep-waking states in 10-sec epochs based on standard scoring criteria across a 4-h recording, then analyzed and compared states and signals from simultaneous epochs between sites.

Results

We found that the total amount of each state, assigned independently using the hippocampal and neocor

SUBMITTER: Emrick JJ 

PROVIDER: S-EPMC5103808 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature