Trial reportBiological psychiatry. Cognitive neuroscience and neuroimaging2020
Memantine Effects on Electroencephalographic Measures of Putative Excitatory/Inhibitory Balance in Schizophrenia.
Trial report in Biological psychiatry. Cognitive neuroscience and neuroimaging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 2 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
90 citing papers in PubMed, 2 syntheses or guidelines pooled it, 169 citations in OpenAlex.
- Glutamatergic Modulation of Brain Function in Psychosis: A Systematic Review of Neuroimaging Studies.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2025Pooled it
- A Systematic Review of Aperiodic Neural Activity in Clinical Investigations.The European journal of neuroscience · 2025Pooled it
- A causal role of the NMDA receptor in recurrent processing during perceptual integration.eLife · 2025Trial
- Dose-Dependent Augmentation of Neuroplasticity-Based Auditory Learning in Schizophrenia: A Double-Blind, Placebo-Controlled, Randomized, Target Engagement Clinical Trial of the NMDA Glutamate Receptor Agonist d-serine.Biological psychiatry · 2023Trial
- One-week escitalopram intake alters the excitation-inhibition balance in the healthy female brain.Human brain mapping · 2022Trial
- Central auditory processing deficits in schizophrenia: Effects of auditory-based cognitive training.Schizophrenia research · 2021Trial
- Memantine effects on auditory discrimination and training in schizophrenia patients.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020Trial
- Gamma oscillations predict pro-cognitive and clinical response to auditory-based cognitive training in schizophrenia.Translational psychiatry · 2020Trial
- Glymphatic dysfunction couples with cortical excitation-inhibition imbalance in epilepsy: Evidence from Rasmussen encephalitis.Epilepsia · 2026Article
- Altered spectral patterns of aperiodic electroencephalography in autism.Psychiatry and clinical neurosciences · 2026Article
- Peripheral Mitochondrial Energetics are Associated with Cortical Neurophysiological Alterations in Alzheimer's Disease.medRxiv : the preprint server for health sciences · 2026Article
- A Framework Integrating Spiking Cortical Circuit Modeling and Simulation-Based Inference to Probe Biomarkers of Cortical Dysfunction in Alzheimer's Disease.Interdisciplinary sciences, computational life sciences · 2026Article
- Aperiodic Signatures of Stress Sensitivity and Depression Recurrence in Adolescents.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2026Article
- Power Spectral Slope as a Novel Brain Functional Marker for Major Depressive Disorder.Biological psychiatry global open science · 2026Article
- Ketamine alters the aperiodic EEG exponent in major depression: implications for cortical E/I balance and treatment prediction.Therapeutic advances in psychopharmacology · 2026Article
- The aperiodic and periodic activities of EEG dynamically relate with cognitive performance in schizophrenia.Schizophrenia research. Cognition · 2025Review
- The development of aperiodic neural activity in the human brain.Nature human behaviour · 2025Article
- Periodic and Aperiodic Alterations of Resting-State EEG in Schizophrenia Spectrum Disorders: Cognitive and Clinical Insights.The European journal of neuroscience · 2025Article
- Alterations in aperiodic neural activity associated with major depressive disorder.Nature. Mental health · 2025Article
- Do cognitive and neurophysiological effects of acute memantine "challenge" predict its clinical benefits in Alzheimer's Disease?Psychiatry research · 2025Article
30 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
backgroundAbnormalities in cortical excitation and inhibition (E/I) balance are thought to underlie sensory and information processing deficits in schizophrenia. Deficits in early auditory information processing mediate both neurocognitive and functional impairment and appear to be normalized by acute pharmacologic challenge with the NMDA antagonist memantine (MEM).
methodsThirty-six subjects with a diagnosis of schizophrenia and 31 healthy control subjects underwent electroencephalographic recordings. Subjects ingested either placebo or MEM (10 or 20 mg) in a double-blind, within-subject, crossover, randomized design. The aperiodic, 1/f-like scaling property of the neural power spectra, which is thought to index relative E/I balance, was estimated using a robust linear regression algorithm.
resultsPatients with schizophrenia had greater aperiodic components compared with healthy control subjects (p < .01, d = 0.64), which was normalized after 20 mg MEM. Analysis revealed a significant dose × diagnosis interaction (p < .0001, d = 0.82). Furthermore, the MEM effect (change in aperiodic component in MEM vs. placebo conditions) was associated with baseline attention and vigilance (r = .54, p < .05) and MEM-induced enhancements in gamma power (r = -.60, p < .01).
conclusionsFindings confirmed E/I balance abnormalities in schizophrenia that were normalized with acute MEM administration and suggest that neurocognitive profiles may predict treatment response based on E/I sensitivity. These data provide proof-of-concept evidence for the utility of E/I balance indices as metrics of acute pharmacologic sensitivity for central nervous system therapeutics.
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Registered trials
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.