Observing a box being opened is intrinsically rewarding and elicits an increase in the evaluation of its contents http://www.sciencedirect.com/science/article/pii/S105774081500011X …
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Observing a box being opened is intrinsically rewarding and elicits an increase in the evaluation of its contents http://www.sciencedirect.com/science/article/pii/S105774081500011X …