Evidence map›Paper›PMID 32757602›Full record

ArticleJournal of abnormal psychology2020

Influence of prior beliefs on perception in early psychosis: Effects of illness stage and hierarchical level of belief.

Joost Haarsma, Franziska Knolle, Juliet D Griffin, Hilde Taverne, Marius Mada, Ian M Goodyer, The Nspn Consortium, Paul C Fletcher, Graham K Murray

Open access · hybridAbstract read
In one paragraph

Article in Journal of abnormal psychology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
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

28 citing papers in PubMed, 58 citations in OpenAlex.

  1. An etiological approach to psychosis: potential benefits for treatment, research and prevention.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Shared and Diverging Neural Dynamics Underlying False and Veridical Perception.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Expectation Cues and False Percepts Generate Stimulus-Specific Activity in Distinct Layers of the Early Visual Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  19. The Placebo Effect in Psychosis: Why It Matters and How to Measure It.Biological psychiatry global open science · 2023
    Review
  20. Article
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

9 authors at 1 institution in 1 country.

Joost HaarsmaDepartment of Psychiatry, University of Cambridge.ORCID 0000-0001-7024-1422
Franziska KnolleDepartment of Psychiatry, University of Cambridge.
Juliet D GriffinDepartment of Psychiatry, University of Cambridge.
Hilde TaverneDepartment of Psychiatry, University of Cambridge.
Marius MadaDepartment of Psychiatry, University of Cambridge.
Ian M GoodyerDepartment of Psychiatry, University of Cambridge.
The Nspn Consortium
Paul C FletcherDepartment of Psychiatry, University of Cambridge.
Graham K MurrayDepartment of Psychiatry, University of Cambridge.ORCID 0000-0001-8296-1742
University of Cambridge · GB

Funding

Bernard Wolfe Health Neuroscience FundCambridge NIHR Biomedical Research CentreNeuroscience in Psychiatry NetworkWellcome Trust 093270
6 · The paper itself

Abstract

Alterations in the balance between prior expectations and sensory evidence may account for faulty perceptions and inferences leading to psychosis. However, uncertainties remain about the nature of altered prior expectations and the degree to which they vary with the emergence of psychosis. We explored how expectations arising at two different levels-cognitive and perceptual-influenced processing of sensory information and whether relative influences of higher- and lower-level priors differed across people with prodromal symptoms and those with psychotic illness. In two complementary auditory perception experiments, 91 participants (30 with first-episode psychosis, 29 at clinical risk for psychosis, and 32 controls) were required to decipher a phoneme within ambiguous auditory input. Expectations were generated in two ways: an accompanying visual input of lip movements observed during auditory presentation or through written presentation of a phoneme provided prior to auditory presentation. We determined how these different types of information shaped auditory perceptual experience, how this was altered across the prodromal and established phases of psychosis, and how this relates to cingulate glutamate levels assessed by magnetic resonance spectroscopy. The psychosis group relied more on high-level cognitive priors compared to both healthy controls and those at clinical risk for psychosis and relied more on low-level perceptual priors than the clinical risk group. The risk group was marginally less reliant on low-level perceptual priors than controls. The results are consistent with previous theory that influences of prior expectations in perceptions in psychosis differ according to level of prior and illness phase. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Indexed as

Acoustic StimulationAdolescentAdultAuditory PerceptionFemaleHumansMalePsychotic DisordersYoung Adult

Identifiers

PMID32757602
PMCPMC7409392
OpenAlexW3048182146

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.