Comparison of defensive behavior evoked by chemical and electrical stimulation of the hypothalamus in cats

Comparison of defensive behavior evoked by chemical anf electrical stimulation of the hypothalamus in cats. Acta Physiol. Pol. 1975, 26 (1) 23--31. An injection of 5 mug of carbachol, as well as electrostimulation of the same hypothalamic area evoked in cats the same type of defensive behavior -- rage reaction. Experiments with carbachol injection and electrostimulation after blockade of the hypothalamic muscarinic receptors (10 mug of atropine) indicate that rage reaction is evoked in a different way by the two methods. Controversial data regarding localization of the hypothalamic "centres" responsible for particular type of defensive reactions are discussed.