Watching My Mind Unfold vs. Yours: An fMRI Study Using a Novel Camera Technology to Examine Neural Differences in Temporal vs. Mental Self-Projection
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1
Duke University, Center for Cognitive Neuroscience, United States
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2
Duke University, Department of Psychology and Neuroscience, United States
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3
University of Leeds, Institute of Psychological Sciences, United Kingdom
Self-projection involves the ability to re-experience the personal past and to understand another person’s perspective. Functional neuroimaging studies have linked self-projection to the medial prefrontal cortex. In particular, ventral mPFC has been associated with inferences about one’s own self, whereas dorsal mPFC has been associated with inferences about another individual. In the present study we examined self-projection during autobiographical memory (AM) retrieval vs. understanding another perspective using a novel camera technology which literally allowed participants to self-project temporally into the personal past or mentally into the life of another person. First, we found that retrieving AMs recruited greater ventral medial PFC (mPFC), whereas viewing another person’s perspective recruited dorsal mPFC. Second, activity in ventral mPFC vs. dorsal mPFC was sensitive to parametric modulation on each trial by the ability to relive the personal past or to understand another’s perspective, respectively. Third, task-related functional connectivity analysis revealed that ventral mPFC contributed to the medial temporal lobe network linked to memory processes, whereas dorsal mPFC contributed to the frontoparietal network linked to controlled processes. In sum, these results suggest that ventral-dorsal subregions of the anterior midline are functionally dissociable and may differentially contribute to self-projection involving temporal vs. mental simulations.
Conference:
The 20th Annual Rotman Research Institute Conference, The frontal lobes, Toronto, Canada, 22 Mar - 26 Mar, 2010.
Presentation Type:
Poster Presentation
Topic:
Social Neuroscience
Citation:
Cabeza
R,
Conway
M,
Lowder
M and
St. Jacques
P
(2010). Watching My Mind Unfold vs. Yours: An fMRI Study Using a Novel Camera Technology to Examine Neural Differences in Temporal vs. Mental Self-Projection.
Conference Abstract:
The 20th Annual Rotman Research Institute Conference, The frontal lobes.
doi: 10.3389/conf.fnins.2010.14.00087
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Received:
29 Jun 2010;
Published Online:
29 Jun 2010.
*
Correspondence:
P L St. Jacques, Duke University, Center for Cognitive Neuroscience, Durham, United States, Peggy.st.jacques@duke.edu