Page "Hippocampus" Paragraph 34

Examples of rat hippocampal EEG and CA1 neural activity in the theta ( awake / behaving ) and LIA ( slow-wave sleep ) modes.

Each plot show 20 seconds of data, with a hippocampal EEG trace at the top, spike rasters from 40 simultaneously recorded CA1 pyramidal cells in the middle ( each raster line represents a different cell ), and a plot of running speed at the bottom.

The top plot represents a time period during which the rat was actively searching for scattered food pellets.

For the bottom plot, the rat was asleep.