[A neurophysiological analysis of the forms of wakefulness and rest in the toad Bufo bufo and the frog Rana ridibunda in the circadian cycle].

Studies have been made on the spectral EEG parameters in the forebrain and midbrain of the toad and frog during active and passive forms of natural behaviour within a diurnal cycle. Basing on evaluation of animal reactivity and on EEG analysis performed by presentation of the power of EEG signals via the frequency spectrum, it is possible to obtain a reliable identification of functional condition of amphibians. Behavioural and EEG patterns of 3 forms of wakefulness and 2 forms of rest are presented for frogs and toads.