Anhedonia is associated with computational impairments in reward and effort learning in young people with depression symptoms.
Background Anhedonia and depression symptoms have been linked to potential deficits in reward learning. However, how anhedonia impacts the ability to adjust and learn about the effort required to obtain rewards remains unclear. Methods We examined young people (N = 155, 16–25 years) with a range of...
| Publicado en: | Psychological Medicine Vol. 55; pp. 1 - 11 |
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| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Cambridge University Press
2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=191245182&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 191245182 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00332917 6Q3 jtl: Psychological Medicine issn: 00332917 maglogo: N pubinfo: dt: 2025 vid: 55 pid: 15979 pub: Cambridge University Press artinfo: ui: 191245182 191245182 191245182 10.1017/S0033291725102523 191245182 ppf: 1 ppct: 10 formats: tig: atl: Anhedonia is associated with computational impairments in reward and effort learning in young people with depression symptoms. aug: sug: subj: Anhedonia Complications Reward Depression Physiopathology Learning Task Performance and Analysis Human Adolescence Young Adult Male Female Repeated Measures Analysis of Variance Descriptive Statistics Data Analysis Software Spearman's Rank Correlation Coefficient Pearson's Correlation Coefficient One-Tailed Test State-Trait Anxiety Inventory Psychological Tests Scales Adolescent: 13-18 years Male Female ab: Background Anhedonia and depression symptoms have been linked to potential deficits in reward learning. However, how anhedonia impacts the ability to adjust and learn about the effort required to obtain rewards remains unclear. Methods We examined young people (N = 155, 16–25 years) with a range of depression and anhedonia symptoms using a probabilistic instrumental reward and effort learning task. Participants were asked to learn which options to choose to maximize reward or minimize effort for reward. We compared the exerted effort (button pressing speed) for high (puppy images) vs low (dog images) rewards and collected subjective reports of "liking," "wanting," and "willingness to exert effort." Computational models were fit to the learning data and estimated parameter values were correlated with depression and anhedonia symptoms. Results As depression symptoms and consummatory anhedonia increased, reward liking decreased, and as anticipatory anhedonia increased, liking, wanting, and willingness to exert effort for reward decreased. Participants exerted more effort for high rewards than for low rewards, but anticipatory anhedonia diminished this difference. Higher consummatory anhedonia was associated with poorer reward and effort learning, and with increased temperature parameter values for both learning types, indicating a higher tendency to make exploratory choices. Higher depression symptoms were associated with lower reward learning accuracy. Conclusion We provide novel evidence that anhedonia is associated with difficulties in modulating effort as a function of reward value and with the underexploitation of low effort and high reward options. We suggest that addressing these impairments could be a novel target for intervention in anhedonic young people. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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