ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2022
Thalamocortical dysrhythmia in patients with schizophrenia spectrum disorder and individuals at clinical high risk for psychosis.
Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 21 citations in OpenAlex.
- Awake alpha bursting emerges as the dynamic working state in a lateral geniculate thalamocortical cell model.PLoS computational biology · 2026Article
- Abnormal spontaneous activity and rest-task shift in schizophrenia.Psychiatry and clinical neurosciences · 2025Article
- In Vivo Reactive Astrocyte Imaging in Patients With Schizophrenia Using Fluorine 18-Labeled THK5351.JAMA network open · 2024Article
- Neurofeedback technique for treating male schizophrenia patients with impulsive behavior: a randomized controlled study.Frontiers in psychiatry · 2024Article
- The central role of the Thalamus in psychosis, lessons from neurodegenerative diseases and psychedelics.Translational psychiatry · 2023Review
- Neocortical localization and thalamocortical modulation of neuronal hyperexcitability contribute to Fragile X Syndrome.Communications biology · 2022Article
- Portable Neuroimaging-Guided Noninvasive Brain Stimulation of the Cortico-Cerebello-Thalamo-Cortical Loop-Hypothesis and Theory in Cannabis Use Disorder.Brain sciences · 2022Article
- Abnormal neural oscillations in clinical high risk for psychosis: a magnetoencephalography method study.General psychiatry · 2022Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Thalamocortical dysrhythmia (TCD) is a model characterized by abnormal resting-state thalamic oscillatory patterns where the alpha rhythm is replaced by cross-frequency coupling of low- and high-frequency rhythms. Although disrupted thalamic function is a suggested important pathophysiological mechanism underlying schizophrenia, knowledge regarding the TCD model in schizophrenia spectrum disorder (SSD) patients and individuals at clinical high risk (CHR) for psychosis is limited. A total of 169 SSD patients, 106 individuals at CHR for psychosis, and 105 healthy controls (HCs) underwent resting-state electroencephalography recordings. We performed mean global field power (MGFP) spectral analysis between 1 and 49 Hz as well as source-level theta phase-gamma amplitude coupling (TGC) analysis and compared resting-state oscillatory patterns across groups. Correlations between altered TGC values and psychotic symptom severity in the patient group were investigated. Spectral MGFP of low- and high-frequencies was larger in the SSD and CHR groups than in the HC group. The TGC of SSD patients was greater than that of HCs in the right frontal, right parietal, and left and right limbic lobes. Greater TGC in the right frontal and limbic lobes was associated with positive symptom severity in SSD patients. However, TGC in the CHR group was comparable to that in the HCs and was smaller than that in the SSD group in widespread cortical regions. The TCD pattern may be apparent after frank psychotic disorder onset in tandem with overt positive symptoms. A psychosis-risk state without overt psychotic symptoms could be characterized by abnormally increased low- and high-frequency activities with relatively preserved TGC.
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