Evidence map›Paper›PMID 25000322›Full record

ArticleNeuropsychology2015

The role of low cognitive effort and negative symptoms in neuropsychological impairment in schizophrenia.

Gregory P Strauss, Lindsay F Morra, Sara K Sullivan, James M Gold

Abstract read
In one paragraph

Article in Neuropsychology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 4 pooled it
–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

26 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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  17. Neural mechanisms of mood-induced modulation of reality monitoring in schizophrenia.Cortex; a journal devoted to the study of the nervous system and behavior · 2017
    Article
  18. The current conceptualization of negative symptoms in schizophrenia.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2017
    Article
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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

4 authors.

Gregory P StraussDepartment of Psychology, State University of New York at Binghamton.
Lindsay F MorraDepartment of Psychology, State University of New York at Binghamton.
Sara K SullivanDepartment of Psychology, State University of New York at Binghamton.
James M GoldDepartment of Psychiatry, University of Maryland School of Medicine.

Funding

Clinical and Computational Studies of Dopamine Function in SchizophreniaR01MH080066 · NIMH · UNIVERSITY OF MARYLAND BALTIMORE · PI GOLD, JAMES M. · 2008 to 2017
$6.4M
NIMH NIH HHS R01 MH080066NIMH NIH HHS R01MH080066
6 · The paper itself

Abstract

objectiveTwo experiments were conducted to examine whether insufficient effort, negative symptoms (e.g., avolition, anhedonia), and psychological variables (e.g., anhedonia and perception of low cognitive resources) predict generalized neurocognitive impairment in individuals with schizophrenia (SZ).

methodIn Experiment 1, participants included 97 individuals with SZ and 63 healthy controls (CN) who completed the Victoria Symptom Validity Test (VSVT), the MATRICS Consensus Cognitive Battery (MCCB), and self-report anhedonia questionnaires. In Experiment 2, participants included 46 individuals with SZ and 33 CN who completed Green's Word Memory Test (WMT), the MCCB, and self-reports of anhedonia, defeatist performance beliefs, and negative expectancy appraisals.

resultsRESULTS indicated that a low proportion of individuals with SZ failed effort testing (1.0% Experiment 1; 15.2% Experiment 2); however, global neurocognitive impairment was significantly predicted by low effort and negative symptoms.

conclusionsFindings indicate that low effort does not threaten the validity of neuropsychological test results in the majority of individuals with schizophrenia; however, effort testing may be useful in SZ patients with severe negative symptoms who may be more likely to put forth insufficient effort due to motivational problems. Although the base rate of failure is relatively low, it may be beneficial to screen for insufficient effort in SZ and exclude individuals who fail effort testing from pharmacological or cognitive remediation trials.

Indexed as

Schizophrenic PsychologyAdultCognitionFemaleHumansMaleMemoryMiddle AgedMotivationNeuropsychological TestsPsychiatric Status Rating ScalesSchizophreniaSelf ReportSurveys and Questionnaires

Identifiers

PMID25000322
PMCPMC4286525

What OpenQuestion holds

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Registered trials

None linked

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.