Classification of cortico–hippocampal activity. (A1,A2) Classification of SWRs that occurred during a cortical up state. (A1) Cartoon illustration of the different SWR classifications in the up state. (A2) MUA from the cortex (dark gray) and hippocampus (light gray) for different SWR classes. (Left panel) The MUAe from the cortex. (Right panel) Average MUA from the cortex and CA1. (Red) A region of a cortical down state, (blue) a region of a cortical up state. (Panel i) SWRs occurring in the down-to-Up state transition. (Panel ii) SWRs occurring in the up-to-down state transition. (Panel iii) SWRs occurring during a sustained Up state, which is characterized by the lack of detection of a down state within the 200-msec time window of analysis. (B1,B2) Classification of SWRs that occurred during a cortical down state. (B1) Cartoon illustration of the different SWR classifications in the down state. (B2) MUA from the cortex (dark gray) and hippocampus (light gray) for different SWR classes. (Left panel) The MUAe from the cortex. (Right panel) Average MUA from the cortex and CA1. (Panel i) SWRs occurring in the up-to-down state transition. (Panel ii) SWRs occurring in the down-to-up state transition. (Panel iii) SWRs occurring during a sustained down state, which is characterized by the lack of detection of an up state within the 200-msec time window of analysis.
