Unconditioned behavior: US→UR |
PS→UR |
Stimulation of withdrawal responses, writhing, flinching, grimacing |
Same |
PS→[US→UR] |
Depression of locomotion, feeding, wheel running, burrowing, nesting |
Impaired physical functioning |
Classically conditioned behavior: CS+US; CS→CR |
PS+CS; CS→CR |
Conditioned place avoidance; fear conditioning |
Avoidance, anxiety, fear |
PS → [US+CS; CS→CR] |
Conditioned place preference to putative analgesic treatments |
Placebo analgesia |
Operant behavior: SD→R→SC
|
PS→R→SC
|
Discrimination of a noxious stimulus |
Verbal reports of pain intensity or quality |
SD→R→PS |
Punishment with a noxious stimulus |
Movement-induced pain |
PS→[SD→R→SC] |
Depression of operant responding for food or brain stimulation |
Impaired physical functioning |