The functional connectivity between right insula and anterior cingulate cortex underlying the association between
Hengyue Zhao1,2, Jingjing Sun3, Rong Zhang1,2
1Faculty of Psychology, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China.
Cerebral Cortex (New York, N.Y. : 1991)
|July 23, 2024
Summary
Future self-continuity, the belief in one's future existence, positively correlates with delay discounting, the devaluation of future rewards. This association is underpinned by neural pathways involving the right dorsal anterior insula and anterior cingulate cortex.
Area of Science:
- Neuroscience
- Decision-making
- Behavioral Economics
Background:
- Delay discounting describes the devaluation of future rewards over time.
- Previous research links future self-continuity to delay discounting rates.
- The neural mechanisms connecting these two concepts remain unclear.
Purpose of the Study:
- To investigate the neural basis of the association between future self-continuity and delay discounting.
- To explore the roles of gray matter volume and functional connectivity in this relationship.
Main Methods:
- Voxel-based morphometry (VBM) to analyze gray matter volume.
- Resting-state functional connectivity (rsFC) to assess neural network activity.
- Mediation analysis to determine the role of specific brain regions.
Main Results:
- Future self-continuity was positively associated with delay discounting.
- Gray matter volume in the right dorsal anterior insula correlated with future self-continuity.
- Functional connectivity between the right dorsal anterior insula and anterior cingulate cortex was linked to future self-continuity and partially mediated its relationship with delay discounting.
Conclusions:
- The right dorsal anterior insula and its functional connectivity with the anterior cingulate cortex represent a potential neural basis for the link between future self-continuity and delay discounting.
- This study offers novel neural insights into how perceptions of future self influence reward valuation and decision-making.
Keywords:
delay discountingfuture self-continuityresting-state functional connectivityvoxel-based morphometryMore Related Videos
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