State-dependent Learning
State-dependent learning refers to the finding that people recall more information when their physiological state is the same at encoding and retrieval. For example, people that undergo alcohol intoxication while encoding information recall significantly more when they are also intoxicated during retrieval, compared to those whose alcoholic states differ from encoding to retrieval. This state-dependent learning effect has been shown in both human and animal research., The state-dependent effect has also been generalized to a variety of drugs, including morphine, cigarettes, scopolamine, and nitric oxide.
It is important to note, however, that certain drug states impair learning. For example, a study done by Harry demonstrated that despite the state-dependent effect associated with light marijuana use, people smoking marijuana showed slower learning than people in a placebo group. More precisely, people who consumed marijuana during both the encoding and retrieval phases managed to learn the material in an average of 10 trials, whereas people who were in the placebo condition for both phases learned the same material in only 5.6 trials, on average.
Read more about this topic: Context-dependent Memory
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