Perception and the Conditioned Reflex

a-rhythm depression action activity alteration appearance application associated auditory becomes changes combination complex component conditioned motor conditioned reflex conditioned stimulus connected connexion continued cortex cortical course darkness defence reaction defence reflex demonstrated depends differentiation diminishes disappears duration effect elaboration electrical elements established excitation experiments extinction extinguished fact Figure formation frequency galvanic skin reaction gives rise hand heat illumination important impulses increased indicated influence inhibition inhibitory intensification intensity latent period latter leads light stimulus lower manifests means measured mechanism motor reaction movement nature negative non-signal non-specific observed operation orientation reaction orientation reflex pain perception positive produced pupil pupillary reactivity reappearance recording reduction reinforcement relationship repetition resistance response result reticular rhythm sensitivity shown shows signal signal stimulus significance similar Sokolov sound specific strong threshold tion unconditioned various vascular vasoconstriction vasomotor reactions visual analyser weak weakening