Fig. S1. Stability of waveform shapes of two hippocampal place cells simultaneously recorded from the same channel (yellow and green) across experimental sessions (A). Note that the waveform shape of each place cell remained stable throughout the recording sessions. Only units with a >  3 :  1 signal to noise rate were considered. (B) Illustration of the Unit A firing activity recorded from a rat running on the U-shaped task encoding a spatial place field (area with peak of firing). Maximum firing rate is indicated by red and occupancy with no firing by blue. (C) Offline analysis of 3-D PC cluster stability from the channel shown across the whole recording sessions using the WaveTracker software (Plexon Inc., Dallas, TX, USA). In this view (D), 2-D PC clusters are projected as function of time (Z-axis). Stability across time and absence of overlap between units isolated from the same channel were used as extra-selection criteria. (E) Location of implanted multielectrode arrays for nine rats used in this study. The black dots indicate the location of the centre of the array in CA1 region.

Table S1. Statistical summary for SHAM and SNI-group comparison across all measurements during the eight recording sessions of the control period.

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