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Troisi, Joseph R., II; Bryant, Erin; Kane, Jennifer – Psychological Record, 2012
Extinction and recovery of the discriminative stimulus effects of nicotine (0.3 mg/kg) was investigated with a devalued food reinforcer (rats sated). Sixteen rats were trained in a counterbalanced one manipulandum (nose-poke) drug discrimination procedure with the roles of nicotine and saline counterbalanced as S[superscript D] and S[superscript…
Descriptors: Therapy, Reinforcement, Smoking, Stimuli
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Meltzoff, Andrew N. – Developmental Psychology, 1995
Two experiments examined whether 40 infants would reenact what an adult did or intended to do: (1) infants observed an adult unsuccessfully attempt to complete 4 target acts; and (2) children observed a mechanical device tracing the adults' actions. Infants could infer adults' intentions and imitate target acts, suggesting that children can…
Descriptors: Cognitive Development, Cognitive Processes, Cognitive Structures, Discrimination Learning