Peripheral self-stimulation as a reward in fish, reptile and mammal.
D000818:Animals; D004558:Electric Stimulation; D005399:Fishes; D000882:Haplorhini; D008027:Light; D012104:Reptiles; D012201:Reward; D012653:Self Stimulation; D011984:Sensory Receptor Cells / Q000502:physiology