Evidence map›Paper›PMID 38498838›Full record

ArticleSchizophrenia bulletin2024

Using Computational Phenotyping to Identify Divergent Strategies for Effort Allocation Across the Psychosis Spectrum.

Alexis E Whitton, Jessica A Cooper, Jaisal T Merchant, Michael T Treadway, Kathryn E Lewandowski

Abstract read
In one paragraph

Article in Schizophrenia bulletin, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Alexis E WhittonBlack Dog Institute, University of New South Wales, Sydney, NSW, Australia.
Jessica A CooperDepartment of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA.
Jaisal T MerchantSchizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA.
Michael T TreadwayDepartment of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA.
Kathryn E LewandowskiSchizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA.

Funding

From stress to anhedonia: examining inflammation and altered glutamate function as distinct or common etiological pathwaysK01MH126308 · NIMH · EMORY UNIVERSITY · PI Jessica Cooper Robinson · 2022 to 2026
$900k
Characterization of Variability in Motivation and Reward in PsychosisR21MH110699 · NIMH · MCLEAN HOSPITAL · PI LEWANDOWSKI, KATHRYN EVE · 2017 to 2018
$446k
Transdiagnostic and Disorder-Specific Effects of Immune and Metabolic Factors on Motivational Deficits Across Mood and Psychotic DisordersR21MH119622 · NIMH · EMORY UNIVERSITY · PI TREADWAY, MICHAEL TILGHMAN · 2020 to 2020
$429k
Motivational anhedonia: neurocomputational mechanisms and temporal dynamicsF32MH115692 · NIMH · EMORY UNIVERSITY · PI ROBINSON, JESSICA COOPER · 2018 to 2021
$218k
The Effect of Social Influence on Effort-Cost Decision-Making in Schizophrenia: From Mechanisms to Real-World AssociationsF31MH132276 · NIMH · WASHINGTON UNIVERSITY · PI MERCHANT, JAISAL TAARA · 2023 to 2024
$97k
National Health and Medical Research Council of Australia GNT1110773NIMH NIH HHS F31 MH132276NIMH NIH HHS F32 MH115692NIMH NIH HHS K01 MH126308NIMH NIH HHS R21 MH110699NIMH NIH HHS R21MH110699NIMH NIH HHS R21 MH119622
6 · The paper itself

Abstract

background and hypothesisDisturbances in effort-cost decision-making have been highlighted as a potential transdiagnostic process underpinning negative symptoms in individuals with schizophrenia. However, recent studies using computational phenotyping show that individuals employ a range of strategies to allocate effort, and use of different strategies is associated with unique clinical and cognitive characteristics. Building on prior work in schizophrenia, this study evaluated whether effort allocation strategies differed in individuals with distinct psychotic disorders. STUDY

designWe applied computational modeling to effort-cost decision-making data obtained from individuals with psychotic disorders (n = 190) who performed the Effort Expenditure for Rewards Task. The sample included 91 individuals with schizophrenia/schizoaffective disorder, 90 individuals with psychotic bipolar disorder, and 52 controls. STUDY

resultsDifferent effort allocation strategies were observed both across and within different disorders. Relative to individuals with psychotic bipolar disorder, a greater proportion of individuals with schizophrenia/schizoaffective disorder did not use reward value or probability information to guide effort allocation. Furthermore, across disorders, different effort allocation strategies were associated with specific clinical and cognitive features. Those who did not use reward value or probability information to guide effort allocation had more severe positive and negative symptoms, and poorer cognitive and community functioning. In contrast, those who only used reward value information showed a trend toward more severe positive symptoms.

conclusionsThese findings indicate that similar deficits in effort-cost decision-making may arise from different computational mechanisms across the psychosis spectrum.

Indexed as

Bipolar DisorderDecision MakingPhenotypePsychotic DisordersSchizophreniaAdultFemaleHumansMaleMiddle AgedRewardcomputational modelingnegative symptomsreward

Identifiers

PMID38498838
PMCPMC11348999

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.