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Striatal sensitivity to reward deliveries and omissions in substance dependent patients
Open accessAbstract
Some motivational theories of substance dependence (SD) posit either pathologically increased or decreased ventral striatum (VS) recruitment by cues for nondrug rewards. The incentive-sensitization hypothesis, alternatively, attributes SD to enhanced incentive salience of drug-predictive cues specifically, with no requirement for altered nondrug incentive processing. We assessed whether individuals undergoing inpatient therapy for SD are characterized by altered recruitment of mesolimbic incentive neurocircuitry by cues and deliveries of nondrug rewards. During functional magnetic resonance imaging, substance-dependent patients (SDP) and controls performed a modified monetary incentive delay task featuring: a) anticipatory cues that signaled opportunities to respond to a target to either win money or avoid losing money, b) notifications of wins and losses, and c) unexpected replacement of reward trial outcomes with a demand to repeat the trial. Both anticipatory reward cues and loss cues elicited similar mood responses and VS activation between SDP and controls. However, in SDP (but not controls), reward notifications also activated VS and mesial frontal cortex, and loss notifications activated anterior insula. Finally, substitution of expected outcomes in reward trials with notifications to repeat the trial deactivated the VS in SDP but not in controls. These data do not suggest that SD is characterized by altered recruitment of VS circuitry by cues for nondrug incentives. Rather, SDP may instead have increased limbic system sensitivity to reward and loss delivery, consistent with the role of impulsivity in SD.
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“A few studies have started to examine these two types of processes separately by separating them temporally, but none have compared adolescents to adults (Bjork et al., 2012; Bjork et al., 2008).”
From A systematic review of fMRI reward paradigms used in studies of adolescents vs. adults: The impact of task design and implications for understanding neurodevelopment (2013) · cites this paper as Bjork et al., 2008
In the citing paper
“The distinction between these two early stages of reward processing (cue appraisal and test preparation, see Figure 2), which has not been explicitly noted in the past (but see Bjork et al., 2012; Bjork et al., 2008), may be quite important, based on the differential relative reliance on striatal function by adolescents and adults across the two stages.”
From A systematic review of fMRI reward paradigms used in studies of adolescents vs. adults: The impact of task design and implications for understanding neurodevelopment (2013) · cites this paper as Bjork et al., 2008
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Metadata
- Authors
- Bjork, J. M., Smith, A. R., & Hommer, D. W.
- Affiliations
- National Institutes of Health (US)
- Corresponding author
- Bjork, James M.
- Venue
- NeuroImage
- Publisher
- Elsevier BV
- Published
- 2008-10
- Volume
- 42
- Issue
- 4
- Pages
- 1609-1621
- ISSN
- 1053-8119 (ISSN-L)
- PMC
- PMC2615386
- OpenAlex
- W2014729506
- Cited by
- 154
- References
- 80
- Citations by year
- 2025: 1 · 2023: 7 · 2022: 4 · 2021: 7 · 2020: 4 · 2019: 6 · 2018: 4 · 2017: 7 · 2016: 14 · 2015: 9 · 2014: 16 · 2013: 23 · 2012: 24
- FWCI
- 4.04
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- NeuroImage (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (Z99 DA999999)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
- Social Sciences › Psychology › Clinical Psychology › Gambling Behavior and Treatments
- Keywords
- substance dependence, ventral striatum, incentive salience, reward processing, loss aversion, anterior insula, impulsivity, monetary incentive delay task, reward omission
- MeSH terms
- Adult, Alcoholism, Corpus Striatum, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Motivation, Reward, Young Adult
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