Remembering pleasure and personal meaning from episodes of intrinsic motivation: an fMRI study.

To decide whether or not to participate in an upcoming activity, people can use their memories of intrinsically-motivating or non-intrinsically-motivating experiences during previous participations. To understand the underlying neural mechanism of intrinsic motivation memories, we used a block-design functional magnetic resonance imaging (fMRI) experiment to compare the neural activations during intrinsically-motivating memories versus during non-intrinsically-motivating memories. Results showed that both the ventromedial prefrontal cortex (VMPFC) and anterior cingulate cortex (ACC) were more activated during the recall of intrinsically-motivating memories rather than during the recall of non-intrinsically-motivating memories. Greater negative functional interactions between the VMPFC and ACC were also observed in the intrinsically-motivating situations. These findings suggest that the two complementary neural processes are employed to reconstruct intrinsically-motivating experiences: pleasure (reward related to VMPFC activity) and personal meaning (self-endorsement related to ACC activity). [ABSTRACT FROM AUTHOR]