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. 1964 Aug 28;145(3635):949-51.
doi: 10.1126/science.145.3635.949.

ELECTROENCEPHALOGRAMS OF SHARKS

P W GILBERT, E S HODGSON, R F MATHEWSON

ELECTROENCEPHALOGRAMS OF SHARKS

P W GILBERT et al. Science. .

Abstract

Patterns of electrical potentials recorded from the brains of sharks exhibit definite relationships to chemical and visual stimuli. Forebrain potentials reflect olfactory processes. Both restrained and free-swimming sharks exhibit mesencephalic responses to light and neural triggering of respiratory reflexes from the medulla. Early evolution of typical vertebrate brain functions, with emphasis upon chemoreception, is indicated

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