Cited by 43Schizophrenia research and treatmentNeural and Behavioral Psychology StudiesMental Health and Psychiatry

When it’s time for a change: failures to track context in schizophrenia

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Ford, Judith M., Roach, Brian J., Miller, Ryan M., Duncan, Connie C., Hoffman, Ralph E., Mathalon, Daniel H.·2010·International Journal of Psychophysiology

Abstract

Introduction Reduction of P300 event-related potential amplitude in schizophrenia is perhaps the most replicated biological reflection of the illness. P300 is typically elicited by infrequent deviant events that are imbedded in a series of identical frequent standard events. Deviants have features that explicitly distinguish them from standards, whereas standards can be distinguished from each other based on their local sequential probabilities within the stimulus series. The improbable occurrence of a standard should generate a P300, but only if the implicit local context generated by the recent stimulus history is processed.Method To assess the ability of schizophrenia patients to process this implicit contextual information, ERPs were elicited from 22 controls and 16 schizophrenia patients during an auditory oddball task containing infrequent target tones (15%) and novel distracter sounds (15%) imbedded pseudo-randomly in a series of standard tones (70%). Consecutively presented standards following deviant stimuli varied in sequential probability from p=1.0 for the 1st standard to p=0.16 for the 4th consecutive standard.Results Patients compared to controls demonstrated smaller P300 (P3a) to the fourth consecutive standard. However, in controls but not patients a contingent negative variation (CNV) was observed prior to the fourth standard, and an N2b/mismatch negativity (MMN) was observed following it.Conclusions These outcomes suggest that patients are deficient in using the implicit context established by recent stimulus history to anticipate that an otherwise standard stimulus was unlikely and its occurrence unexpected.

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Crossref · 10.1016/j.ijpsycho.2010.05.005

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Research works printed but not linked: 2

  1. Ford JM Gray M Whitfield SL Turken AU Glover G Faustman WO Mathalon DH Acquiring and inhibiting prepotent responses in schizophrenia: event-related brain potentials and functional magnetic resonance imaging Arch Gen Psychiatry 2004b 61 119 129 14757588
  2. Mathalon DH Hoffman RE Watson TD Miller RM Roach BJ Ford JM Neurophysiological distinction between schizophrenia and schizoaffective disorder Frontiers in Neuroscience 2010b PMC2816168 20140266

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Authors
Ford, J. M., Roach, B. J., Miller, R. M., Duncan, C. C., Hoffman, R. E., & Mathalon, D. H.
Affiliations
  • San Francisco VA Medical Center (US)
  • Uniformed Services University of the Health Sciences (US)
  • Yale University (US)
Corresponding author
Ford, Judith M.
Venue
International Journal of Psychophysiology
Publisher
Elsevier BV
Published
2010-10
Volume
78
Issue
1
Pages
3-13
ISSN
0167-8760 (ISSN-L)
OpenAlex
W2035630295
Cited by
43
References
71
Citations by year
2025: 2 · 2024: 3 · 2023: 2 · 2022: 1 · 2021: 1 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 3 · 2016: 5 · 2015: 3 · 2014: 1 · 2013: 4 · 2012: 8
FWCI
3.06
Type
journal article
Language
en
Open access
Locations
  • International Journal of Psychophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • VA Schizophrenia Biological Research Center
  • Research Career Scientist
  • VA Merit Review
  • NIMH
  • NARSAD
  • DHM
  • VA Career Award
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
schizophrenia, P300, event-related potentials, auditory oddball paradigm, deviance detection, contingent negative variation, mismatch negativity, N2b
MeSH terms
Acoustic Stimulation, Adult, Evoked Potentials, Auditory, Female, Follow-Up Studies, Humans, Male, Middle Aged, Reaction Time, Schizophrenia, Event-Related Potentials, P300, Young Adult

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