Cited by 155Schizophrenia research and treatmentNeural and Behavioral Psychology StudiesMental Health and Psychiatry

Cognitive impairments in psychotic disorders: common mechanisms and measurement

Open access
Barch, Deanna M., Sheffield, Julia M.·2014·World Psychiatry

Abstract

Decades of research have provided robust evidence of cognitive impairments in psychotic disorders. Individuals with schizophrenia appear to be impaired on the majority of neuropsychological tasks, leading some researchers to argue for a "generalized deficit", in which the multitude of cognitive impairments are the result of a common neurobiological source. One such common mechanism may be an inability to actively represent goal information in working memory as a means to guide behavior, with the associated neurobiological impairment being a disturbance in the function of the dorsolateral prefrontal cortex. Here, we provide a discussion of the evidence for such impairment in schizophrenia, and how it manifests in domains typically referred to as cognitive control, working memory and episodic memory. We also briefly discuss cognitive impairment in affective psychoses, reporting that the degree of impairment is worse in schizophrenia than in bipolar disorder and psychotic major depression, but the profile of impairment is similar, possibly reflecting common mechanisms at the neural level. Given the recent release of the DSM-5, we end with a brief discussion on assessing cognition in the context of diagnosis and treatment planning in psychotic disorders.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/wps.20145

Cites

150 of 150 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Part of this paper’s reference list could not be split into single entries.

Flagged first, then by citations

1 of the 151 references couldn’t be matched to a known paper.

Research works printed but not linked: 5

  1. Barch DM, Carter CS, Braver TS et al. Selective deficits in pre- frontal cortex regions in medication naive schizophrenia patients. Arch Gen Psychiatry 2001;50:280-8.
  2. MacDonald A, Carter CS, Kerns JG et al. Specificity of prefron- tal dysfunction and context processing deficits to schizophrenia in a never medicated first-episode psychotic sample. Am J Psy- chiatry 2005;162:475-84.
  3. Squire LR. Memory and brain. New York: Oxford University Press, 1987.
  4. Brewer J, Zhao ZH, Gabrieli JDE. Parahippocampal and frontal responses to single events predict whether those events are remembered or forgotten. Science 1998;281:1185-7.
  5. Heckers S, Konradi C. Hippocampal pathology in schizophre- nia. Curr Top Behav Neurosci 2010;4:529-53.

Cited by

Sorted by citations

Authors
Barch, D. M., & Sheffield, J. M.
Affiliations
Washington University in St. Louis (US)
Venue
World Psychiatry
Publisher
Wiley
Published
2014-10
Volume
13
Issue
3
Pages
224-232
ISSN
1723-8617 (ISSN-L)
OpenAlex
W2170812820
Cited by
154
References
151
Citations by year
2026: 8 · 2025: 14 · 2024: 7 · 2023: 5 · 2022: 11 · 2021: 22 · 2020: 15 · 2019: 15 · 2018: 19 · 2017: 11 · 2016: 15 · 2015: 12
FWCI
9.66
Type
journal article
Language
en
Open access
Locations
  • World Psychiatry (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Mental Health (R01MH084840)
  • National Institute of General Medical Sciences (T32GM081739)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
Keywords
cognitive impairment, psychosis, schizophrenia, working memory, cognitive control, episodic memory, dorsolateral prefrontal cortex, affective psychosis, bipolar disorder, psychotic depression, DSM-5, neuropsychological assessment, treatment planning

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review