“…Animals were connected via preamplifiers (#RA4PA, Tucker-Davis Technologies, Alachua, USA) to EEG system (RX5-Pentuza Base Station, TDT, USA) and signal was band pass filtered (1.2 to 300 Hz) and digitized at 1 kHz. VisionBrain software (Martinkova et al, 2009) and uEye camera (#UI-2140SE-M-GL, IDS Imaging Development Systems GmbH, Obersulm, Germany) were used to record video signal (15 frames/s). Basal EEG was registered for 30 min.…”