title: Changes in the amplitude of photically evoked potentials by a conditioned stimulus.
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D002415:Cats; D002540:Cerebral Cortex / Q000502:physiology*; D003214:Conditioning, Classical; D003213:Conditioning, Psychological; D004569:Electroencephalography; D004594:Electrophysiology; D005108:Extinction, Psychological; D005502:Food; D007031:Hypothalamus; D013016:Sound