ArticleEuropean archives of psychiatry and clinical neuroscience2016
Noise power associated with decreased task-induced variability of brain electrical activity in schizophrenia.
Article in European archives of psychiatry and clinical neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 19 citations in OpenAlex.
- Linking reduced prefrontal microcircuit inhibition in schizophrenia to EEG biomarkers in silico.PLoS computational biology · 2026Article
- Increased noise relates to abnormal excitation-inhibition balance in schizophrenia: a combined empirical and computational study.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
- Electroencephalography for the Study of the Auditory P300 Evoked Potential and Derived Measurements.Methods in molecular biology (Clifton, N.J.) · 2023Article
- Deficits of entropy modulation of the EEG: A biomarker for altered function in schizophrenia and bipolar disorder?Journal of psychiatry & neuroscience : JPN · 2020Article
- Deficits of entropy modulation in schizophrenia are predicted by functional connectivity strength in the theta band and structural clustering.NeuroImage. Clinical · 2018Article
- Impaired Tuning of Neural Ensembles and the Pathophysiology of Schizophrenia: A Translational and Computational Neuroscience Perspective.Biological psychiatry · 2017Review
- Morphological and functional alterations in patients with schizophrenia spectrum disorders.European archives of psychiatry and clinical neuroscience · 2016Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In schizophrenia, both increased baseline metabolic and electroencephalographic (EEG) activities as well as decreased task-related modulation of neural dynamics have been reported. Noise power (NP) can measure the background EEG activity during task performance, and Shannon entropy (SE) is useful for quantifying the global modulation of EEG activity with a high temporal resolution. In this study, we have assessed the possible relationship between increased NP in theta and gamma bands and decreased SE modulation in 24 patients with schizophrenia and 26 controls over the parietal and central regions during a P300 task. SE modulation was calculated as the change from baseline to the active epoch (i.e., 150-550 ms following the target stimulus onset). Patients with schizophrenia displayed statistically significant higher NP values and lower SE modulation than healthy controls. We found a significant association between gamma NP and SE in all of the participants. Specifically, a NP increase in the gamma band was followed by a decrease in SE change. These results support the notion that an excess of gamma activity, unlocked to the task being performed, is accompanied by a decreased modulation of EEG activity in schizophrenia.
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