Cited by 48Schizophrenia research and treatmentMental Health and PsychiatryNeuroscience and Neuropharmacology Research

Role of N-Methyl D-aspartate receptors in action-based predictive coding deficits in schizophrenia

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Kort, Naomi S., Ford, Judith M., Roach, Brian J., Gunduz-Bruce, Handan, Krystal, John H., Jaeger, Judith, Reinhart, Robert M.G., Mathalon, Daniel H.·2017·Biological Psychiatry

Abstract

Background Recent theoretical models of schizophrenia posit that dysfunction of the neural mechanisms subserving predictive coding contributes to symptoms and cognitive deficits, and this dysfunction is further posited to result from N-methyl-D-aspartate glutamate receptor (NMDAR) hypofunction. Previously, by examining auditory cortical responses to self-generated speech sounds, we demonstrated that predictive coding during vocalization is disrupted in schizophrenia. To test the hypothesized contribution of NMDAR hypofunction to this disruption, we examined the effects of the NMDAR antagonist, ketamine, on predictive coding during vocalization in healthy volunteers and compared them with the effects of schizophrenia.Methods In two separate studies, the N1 component of the event-related potential elicited by speech sounds during vocalization (talk) and passive playback (listen) were compared to assess the degree of N1 suppression during vocalization, a putative measure of auditory predictive coding. In the crossover study, 31 healthy volunteers completed two randomly ordered test days, a saline day and a ketamine day. Event-related potentials during the talk/listen task were obtained before infusion and during infusion on both days, and N1 amplitudes were compared across days. In the case-control study, N1 amplitudes from 34 schizophrenia patients and 33 healthy control volunteers were compared.Results N1 suppression to self-produced vocalizations was significantly and similarly diminished by ketamine (Cohen's d = 1.14) and schizophrenia (Cohen's d = .85).Conclusions Disruption of NMDARs causes dysfunction in predictive coding during vocalization in a manner similar to the dysfunction observed in schizophrenia patients, consistent with the theorized contribution of NMDAR hypofunction to predictive coding deficits in schizophrenia.

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  1. [90]First MB Spitzer RL Gibbon M Williams JBW Structured Clinical Interview for DSM-IV Axis I Disorders (SCID), Research Version, Patient Edition with Psychotic Screen 1997 Biometrics Research, New York State Psychiatric Institute New York

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Authors
Kort, N. S., Ford, J. M., Roach, B. J., Gunduz-Bruce, H., Krystal, J. H., Jaeger, J., Reinhart, R. M. G., & Mathalon, D. H.
Affiliations
  • University of California, San Francisco (US)
  • San Francisco VA Medical Center (US)
  • Northern California Institute for Research and Education (US)
  • Yale University (US)
  • AstraZeneca (United States) (US)
Corresponding author
Mathalon, Daniel H.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2017-03
Volume
81
Issue
6
Pages
514-524
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2461047954
Cited by
48
References
108
Citations by year
2026: 1 · 2025: 3 · 2024: 7 · 2023: 8 · 2022: 3 · 2021: 5 · 2020: 6 · 2019: 3 · 2018: 6 · 2017: 6
FWCI
4.44
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • OpenBU (Boston University) (submittedVersion)
Funders
  • National Institutes of Health (5r01mh058262-17, UL1TR001863)
  • National Institute on Alcohol Abuse and Alcoholism (R01AA012879, P50AA012870)
  • National Institute of Mental Health (R01MH-058262, T32MH089920)
  • National Center for Research Resources (UL1RR024139)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
schizophrenia, predictive coding, NMDA receptor hypofunction, ketamine, self-produced speech, auditory cortex, event-related potentials, vocalizations, glutamate receptor antagonism
MeSH terms
Acoustic Stimulation, Adult, Cerebral Cortex, Electroencephalography, Evoked Potentials, Female, Humans, Ketamine, Male, Schizophrenia, Schizophrenic Psychology, Speech Perception, Receptors, N-Methyl-D-Aspartate, Cross-Over Studies

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