Assertion: dopamine's effect | /r/HasProperty | invigorating
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Source sentences:
text: The time-locked nature of the D 2 effect, and the fact that addictive behaviors typically resolve upon discontinuation of the dopamine agonist, is consistent with the theory that tonic dopamine has an invigorating effect on reward seeking behavior (Niv et al., 2007; Dagher and Robbins, 2009).