Cited by 108Schizophrenia research and treatmentNeural dynamics and brain functionMental Health and Psychiatry

Mismatch negativity indexes illness-specific impairments of cortical plasticity in schizophrenia: a comparison with bipolar disorder and Alzheimer’s disease

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Baldeweg, Torsten, Hirsch, Steven R.·2015·International Journal of Psychophysiology

Abstract

Cognitive impairment is an important predictor of functional outcome in patients with schizophrenia, yet its neurobiology is still incompletely understood. Neuropathological evidence of impaired synaptic connectivity and NMDA receptor-dependent transmission in superior temporal cortex motivated us to explore the correlation of in vivo mismatch negativity (MMN) with cognitive status in patients with schizophrenia. MMN elicited in a roving stimulus paradigm displayed a response proportional to the number of stimulus repetitions (memory trace effect). Preliminary evidence in patients with chronic schizophrenia suggests that attenuation of this MMN memory trace effect was correlated with the degree of neuropsychological memory dysfunction. Here we present data from a larger confirmatory study in patients with schizophrenia, bipolar disorder, probable Alzheimer's disease and healthy controls. We observed that the diminution of the MMN memory trace effect and its correlation with memory impairment was only found in the schizophrenia group. Recent pharmacological studies using the roving paradigm suggest that attenuation of the MMN trace effect can be understood as abnormal modulation of NMDA receptor-dependent plasticity. We suggest that the convergence of the previously identified synaptic pathology in supragranular cortical layers with the intracortical locus of MMN generation accounts for the remarkable robustness of MMN impairments in schizophrenia. We further speculate that this layer-specific synaptic pathology identified in supragranular neurons plays a pivotal computational role, by weakening the encoding and propagation of prediction errors to higher cortical modules. According to predictive coding theory such breakdown will have grave implications not only for perception, but also for higher-order cognition and may thus account for the MMN-cognition correlations observed here. Finally, MMN is a sensitive and specific biomarker for detecting the early prodromal phase of schizophrenia and is well suited for the exploration of novel cognition-enhancing agents in humans.

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Crossref · 10.1016/j.ijpsycho.2014.03.008

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  • Non-social predictive coding appeared preserved in individuals with bipolar disorder.

    “In contrast, non-social predictive coding appeared preserved in individuals with BD (Baldeweg and Hirsch, 2015).”

    From Predictive coding in neuropsychiatric disorders: a systematic transdiagnostic review. (2025) · cites this paper as Baldeweg and Hirsch, 2015

  • Subjects with Alzheimer's disease exhibited similar results to healthy controls in the predictive task.

    “sub­ jects with Alzheimer ' s disease exhibited similar results to HC in the predictive task (Baldeweg and Hirsch, 2015)”

    From Predictive coding in neuropsychiatric disorders: a systematic transdiagnostic review. (2025) · cites this paper as Baldeweg and Hirsch, 2015

  • Impairments in repetition effects were observed in patients with schizophrenia, but not with bipolar disorder or Alzheimer's disease.

    “They also reported that impairments in repetition effects were observed in patients with schizophrenia, but not with bipolar disorder or Alzheimer’s disease (30).”

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Authors
Baldeweg, T., & Hirsch, S. R.
Affiliations
  • Great Ormond Street Hospital for Children NHS Foundation Trust (GB)
  • Charing Cross Hospital (GB)
Corresponding author
Baldeweg, Torsten
Venue
International Journal of Psychophysiology
Publisher
Elsevier BV
Published
2015-02
Volume
95
Issue
2
Pages
145-155
ISSN
0167-8760 (ISSN-L)
OpenAlex
W2086387392
Cited by
108
References
110
Citations by year
2026: 1 · 2025: 5 · 2024: 7 · 2023: 4 · 2022: 5 · 2021: 7 · 2020: 14 · 2019: 18 · 2018: 9 · 2017: 14 · 2016: 9 · 2015: 14 · 2014: 1
FWCI
9.66
Type
journal article
Language
en
Open access
Locations
  • International Journal of Psychophysiology (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
Keywords
mismatch negativity, schizophrenia, cortical plasticity, memory impairment, NMDA receptor, synaptic connectivity, superior temporal cortex, bipolar disorder, Alzheimer's disease, predictive coding, prediction error, cognitive impairment
MeSH terms
Acoustic Stimulation, Adult, Aged, Aged, 80 and over, Alzheimer Disease, Analysis of Variance, Bipolar Disorder, Cerebral Cortex, Cognition Disorders, Contingent Negative Variation, Electroencephalography, Evoked Potentials, Auditory, Humans, Memory, Short-Term, Middle Aged, Neuronal Plasticity, Neuropsychological Tests, Psychiatric Status Rating Scales

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