Differential Consolidation and Pattern Reverberations within Episodic Cell Assemblies in the Mouse Hippocampus
Simultaneous recordings of many individual units (only 20 units shown here out of over a few hundreds) and local field potentials in a freely behaving mouse were used for assessing whether our electrodes reached CA1.
(A) The activity of the simultaneously recorded individual units from the hippocampus during mouse exploration. Twenty units from the recorded data were selected for the illustration. Note that the simultaneously recorded field potential shows the typical theta rhythm oscillations (4–12 Hz) during running. (B) The activity of the simultaneously recorded individual units from the hippocampus during mouse slow wave sleep. The simultaneous field potential recording shows the irregular waves as well as the ripple oscillations (150–250 Hz) during sleep. The traces marked with ‘FP’ show the original field potential recorded from one recording channel. The trace marked with ‘theta’ shows the field potential filtered with the frequency range from 4–12 Hz from the original one, whereas the traces marked with ‘ripples’ shows the field potential filtered with 150 to 250 Hz from the original one.