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Fig. 2. Phasic EEG activity during paradoxical sleepThe 3 tracings are continuous (each line represents 2 min). A slow sleep with slow cortical activity, occipItal. cortex (2), and with isolated PGO activity, monophasic spikes at right (3) and left (4) lateral geniculate bodies. B beginning of PS PG0 activity occurs permanently 60 sec before disappearance of EMG activity of the neck (1). C PS increase in the bursts of monophasic spikes whereupon there is a fast cortical activity with occipItal. spikes. Scale 6 sec, 50 microv. |