Dynamics of Potentials from the Brain of Anamniotes (Vertebrates)

Abstract

Bullock and Başar (1988) report that “when the extracellular ongoing, spontaneous potentials recorded from the surface or the depth of the cerebrum are compared in terms of gross wave form and power spectral density, there are no systematic differences among vertebrate classes (mammals, reptiles, birds, amphibians, bony and cartilaginous fishes) and that the differences in brain electrical activity between fish and mammals are smaller, if any, in spite of the major histological differences, than those in different states and loci within the same individual.” For instance, among various bony fishes and elasmobranchs there are no differences in the parameters of ongoing activity. On the other hand, cerebellar cortex, tegmentum, medulla, and cord show quite different forms of ongoing activity (Bullock and Başar 1988).