| http://www.w3.org/ns/prov#value | - Electrical stimulation of the VTA or its output pathways can itself serve as a potent reward: animals will quickly learn to press a lever if it results in stimulation of dopamine release, and often will continue pressing the lever for a long time, at steadily increasing rates.[25] A variety of drugs that increase dopamine levels are intrinsically rewarding and increase the effects of other types o
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