The effect of intrinsic and extrinsic motivation on memory formation: insight from behavioral and imaging study
SourceBrain Structure and Function, 225, 5, (2020), pp. 1561-1574
Article / Letter to editor
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PI Group Memory & Emotion
Brain Structure and Function
Subject130 000 Cognitive Neurology & Memory; Radboudumc 13: Stress-related disorders DCMN: Donders Center for Medical Neuroscience
Motivation can be generated intrinsically or extrinsically, and both kinds of motivation show similar facilitatory effects on memory. However, effects of extrinsic and intrinsic motivation on memory formation have not been studied in combination and thus, it is unknown whether they interact and how such interplay is neurally implemented. In the present study, both extrinsic monetary reward and intrinsic curiosity enhanced memory performance, without evidence for an interaction. Functional magnetic resonance imaging revealed that curiosity-driven activity in the ventral striatal reward network appears to work cooperatively with the fronto-parietal attention network, while enhancing memory formation. In contrast, the monetary reward-modulated subsequent memory effect revealed deactivation in parietal midline regions. Thus, curiosity might enhance memory performance by allocation of attentional resources and reward-related processes; while, monetary reward does so by suppression of task-irrelevant processing.
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