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Ghrelin decreases s...
Ghrelin decreases sensitivity to negative feedback and increases prediction-error related caudate activity in humans, a randomized controlled trial
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- Pietrzak, Michal, 1987- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Psykiatriska kliniken i Linköping
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- Yngve, Adam, 1993- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Hamilton, Paul J., 1970- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Asratian, Anna, 1991- (author)
- Linköpings universitet,Avdelningen för cellbiologi,Medicinska fakulteten,Avdelningen för cell- och neurobiologi
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- Gauffin, Emelie (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Psykiatriska kliniken i Linköping
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- Löfberg, Andreas, 1987- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Region Östergötland, Psykiatriska kliniken i Linköping
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- Gustavson, Sarah (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Persson, Emil, 1982- (author)
- Linköpings universitet,Nationalekonomi,Filosofiska fakulteten,Jedilab
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- Johansson Capusan, Andrea, MD PhD, 1970- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Region Östergötland, Psykiatriska kliniken i Linköping
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- Leggio, Lorenzo (author)
- Natl Inst Drug Abuse Intramural Res Program, MD 21224 USA; Natl Inst Alcohol Abuse & Alcoholism, MD 21224 USA
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- Perini, Irene, 1983- (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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- Tinghög, Gustav, 1979- (author)
- Linköpings universitet,Nationalekonomi,Filosofiska fakulteten,Jedilab
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- Heilig, Markus, 1959- (author)
- Linköpings universitet,Medicinska fakulteten,Centrum för social och affektiv neurovetenskap,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Region Östergötland, Psykiatriska kliniken i Linköping
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- Böhme, Rebecca (author)
- Linköpings universitet,Centrum för social och affektiv neurovetenskap,Medicinska fakulteten,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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(creator_code:org_t)
- Springer Science+Business Media B.V. 2024
- 2024
- English.
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In: Neuropsychopharmacology. - : Springer Science+Business Media B.V.. - 0893-133X .- 1740-634X. ; 49, s. 1042-1049
- Related links:
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https://doi.org/10.1...
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The stomach-derived hormone ghrelin plays not only a role in feeding, starvation, and survival, but it has been suggested to also be involved in the stress response, in neuropsychiatric conditions, and in alcohol and drug use disorders. Mechanisms related to reward processing might mediate ghrelin's broader effects on complex behaviors, as indicated by animal studies and mostly correlative human studies. Here, using a within-subject double-blind placebo-controlled design with intravenous ghrelin infusion in healthy volunteers (n = 30), we tested whether ghrelin alters sensitivity to reward and punishment in a reward learning task. Parameters were derived from a computational model of participants' task behavior. The reversal learning task with monetary rewards was performed during functional brain imaging to investigate ghrelin effects on brain signals related to reward prediction errors. Compared to placebo, ghrelin decreased punishment sensitivity (t = -2.448, p = 0.021), while reward sensitivity was unaltered (t = 0.8, p = 0.43). We furthermore found increased prediction-error related activity in the dorsal striatum during ghrelin administration (region of interest analysis: t-values >= 4.21, p-values <= 0.044). Our results support a role for ghrelin in reward processing that extends beyond food-related rewards. Reduced sensitivity to negative outcomes and increased processing of prediction errors may be beneficial for food foraging when hungry but could also relate to increased risk taking and impulsivity in the broader context of addictive behaviors.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- SAMHÄLLSVETENSKAP -- Ekonomi och näringsliv -- Nationalekonomi (hsv//swe)
- SOCIAL SCIENCES -- Economics and Business -- Economics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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Pietrzak, Michal ...
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Yngve, Adam, 199 ...
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Hamilton, Paul J ...
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Asratian, Anna, ...
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Gauffin, Emelie
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Löfberg, Andreas ...
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Gustavson, Sarah
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Persson, Emil, 1 ...
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Johansson Capusa ...
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Leggio, Lorenzo
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Perini, Irene, 1 ...
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Tinghög, Gustav, ...
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Heilig, Markus, ...
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Böhme, Rebecca
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Psychiatry
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Basic Medicine
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and Neurosciences
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- SOCIAL SCIENCES
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SOCIAL SCIENCES
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and Economics and Bu ...
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and Economics
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Neuropsychopharm ...
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Linköping University