Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study

Delay discounting, the decline in the subjective value of future rewards over time, has traditionally been understood through a tripartite neural network model, comprising the valuation, cognitive control, and prospection networks. To investigate the applicability of this model in a resting-state co...

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Main Authors: Songyue Ji, Fan Yang, Xueting Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-02-01
Series:Frontiers in Psychiatry
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpsyt.2024.1320830/full
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author Songyue Ji
Fan Yang
Xueting Li
author_facet Songyue Ji
Fan Yang
Xueting Li
author_sort Songyue Ji
collection DOAJ
description Delay discounting, the decline in the subjective value of future rewards over time, has traditionally been understood through a tripartite neural network model, comprising the valuation, cognitive control, and prospection networks. To investigate the applicability of this model in a resting-state context, we employed a monetary choice questionnaire to quantify delay discounting and utilized resting-state functional magnetic resonance imaging (rs-fMRI) to explore the role of spontaneous brain activity, specifically regional homogeneity (ReHo), in influencing individual differences in delay discounting across a large cohort (N = 257). Preliminary analyses revealed a significant negative correlation between delay discounting tendencies and the ReHo in both the left insula and the right hippocampus, respectively. Subsequent resting-state functional connectivity (RSFC) analyses, using these regions as seed ROIs, disclosed that all implicated brain regions conform to the three principal networks traditionally associated with delay discounting. Our findings offer novel insights into the role of spontaneous neural activity in shaping individual variations in delay discounting at both regional and network levels, providing the first empirical evidence supporting the applicability of the tripartite network model in a resting-state context.
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spelling doaj.art-fb4c6741917243dd9bd6805e777d69b12024-02-02T04:47:53ZengFrontiers Media S.A.Frontiers in Psychiatry1664-06402024-02-011510.3389/fpsyt.2024.13208301320830Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI studySongyue JiFan YangXueting LiDelay discounting, the decline in the subjective value of future rewards over time, has traditionally been understood through a tripartite neural network model, comprising the valuation, cognitive control, and prospection networks. To investigate the applicability of this model in a resting-state context, we employed a monetary choice questionnaire to quantify delay discounting and utilized resting-state functional magnetic resonance imaging (rs-fMRI) to explore the role of spontaneous brain activity, specifically regional homogeneity (ReHo), in influencing individual differences in delay discounting across a large cohort (N = 257). Preliminary analyses revealed a significant negative correlation between delay discounting tendencies and the ReHo in both the left insula and the right hippocampus, respectively. Subsequent resting-state functional connectivity (RSFC) analyses, using these regions as seed ROIs, disclosed that all implicated brain regions conform to the three principal networks traditionally associated with delay discounting. Our findings offer novel insights into the role of spontaneous neural activity in shaping individual variations in delay discounting at both regional and network levels, providing the first empirical evidence supporting the applicability of the tripartite network model in a resting-state context.https://www.frontiersin.org/articles/10.3389/fpsyt.2024.1320830/fulldelay discountingReHofunctional connectivitythe tripartite network modelresting-state fMRI
spellingShingle Songyue Ji
Fan Yang
Xueting Li
Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study
Frontiers in Psychiatry
delay discounting
ReHo
functional connectivity
the tripartite network model
resting-state fMRI
title Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study
title_full Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study
title_fullStr Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study
title_full_unstemmed Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study
title_short Spontaneous neural activity in the three principal networks underlying delay discounting: a resting-state fMRI study
title_sort spontaneous neural activity in the three principal networks underlying delay discounting a resting state fmri study
topic delay discounting
ReHo
functional connectivity
the tripartite network model
resting-state fMRI
url https://www.frontiersin.org/articles/10.3389/fpsyt.2024.1320830/full
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