Sahar Allouch
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View article: Transdiagnostic electrophysiological subtypes reveal brain-behavior dimensions in youth psychiatry
Transdiagnostic electrophysiological subtypes reveal brain-behavior dimensions in youth psychiatry Open
Conventional psychiatric diagnoses often fail to reflect the underlying neurobiological and behavioral complexity of mental health conditions. Here, we propose a transdiagnostic, data-driven framework for stratifying youth based on large-s…
View article: Beyond homogeneity: charting the landscape of heterogeneity in neurodevelopmental and psychiatric electroencephalography
Beyond homogeneity: charting the landscape of heterogeneity in neurodevelopmental and psychiatric electroencephalography Open
Electroencephalography (EEG) has been thoroughly studied for decades in neurodevelopmental and psychiatric research. Yet its integration into clinical practice as a diagnostic/prognostic tool remains unachieved. We hypothesize that a key r…
View article: Neurophysiological resting-state EEG markers of catatonia in schizophrenia and mood disorders
Neurophysiological resting-state EEG markers of catatonia in schizophrenia and mood disorders Open
Key points Question Is catatonia, hypothesized to involve disrupted excitation–inhibition balance and cortical dysconnectivity, associated with quantitative abnormalities on resting-state EEG? Findings In this retrospective, case-control, …
View article: Characterizing the heterogeneity of neurodegenerative diseases through EEG normative modeling
Characterizing the heterogeneity of neurodegenerative diseases through EEG normative modeling Open
Neurodegenerative diseases like Parkinson’s (PD) and Alzheimer’s (AD) exhibit considerable heterogeneity of functional brain features within patients, complicating diagnosis and treatment. Here, we use electroencephalography (EEG) and norm…
View article: Toward precision psychiatry using HD-EEG and normative modeling
Toward precision psychiatry using HD-EEG and normative modeling Open
Introduction Electroencephalography (EEG) has been extensively studied for decades in psychiatric research. However, its integration into clinical practice as a diagnostic or prognostic tool remains unachieved. We hypothesize that a key re…
View article: Beyond homogeneity: Charting the landscape of heterogeneity in psychiatric electroencephalography
Beyond homogeneity: Charting the landscape of heterogeneity in psychiatric electroencephalography Open
Electroencephalography (EEG) has been thoroughly studied for decades in psychiatry research. Yet its integration into clinical practice as a diagnostic/prognostic tool remains unachieved. We hypothesize that a key reason is the underlying …
View article: Effect of analytical variability in estimating EEG-based functional connectivity
Effect of analytical variability in estimating EEG-based functional connectivity Open
The significant degree of variability and flexibility in neuroimaging analysis approaches has recently raised concerns. When running any neuroimaging study, the researcher is faced with a large number of methodological choices, often made …
View article: Effect of channel density, inverse solutions and connectivity measures on EEG resting-state networks reconstruction: A simulation study
Effect of channel density, inverse solutions and connectivity measures on EEG resting-state networks reconstruction: A simulation study Open
Along with the study of brain activity evoked by external stimuli, the past two decades witnessed an increased interest in characterizing the spontaneous brain activity occurring during resting conditions. The identification of connectivit…
View article: Effect of channel density, inverse solutions and connectivity measures on EEG resting-state networks: a simulation study
Effect of channel density, inverse solutions and connectivity measures on EEG resting-state networks: a simulation study Open
Along with the study of brain activity evoked by external stimuli, the past two decades witnessed an increased interest in characterizing the spontaneous brain activity occurring during resting conditions. The identification of the connect…
View article: Epilelptiform coritcal activity - EEG simulations
Epilelptiform coritcal activity - EEG simulations Open
Source-space brain activity was generated using a physiologically-grounded computational model, named COALIA. It generates brain-scale electrophysiology activity while accounting for the macro- (between regions) as well as the micro-circui…
View article: Epilelptiform coritcal activity - EEG simulations
Epilelptiform coritcal activity - EEG simulations Open
Source-space brain activity was generated using a physiologically-grounded computational model, named COALIA. It generates brain-scale electrophysiology activity while accounting for the macro- (between regions) as well as the micro-circui…
View article: Resting-state EEG simulations
Resting-state EEG simulations Open
Cortical-level activity was generated using a flexible neural mass model framework, named COALIA. This multi-population neural mass model enables the simulation of brain-scale electrophysiological activity while accounting for the macro- (…
View article: Resting-state EEG simulations
Resting-state EEG simulations Open
Cortical-level activity was generated using a flexible neural mass model framework, named COALIA. This multi-population neural mass model enables the simulation of brain-scale electrophysiological activity while accounting for the macro- (…
View article: Mean-field modeling of brain-scale dynamics for the evaluation of EEG source-space networks
Mean-field modeling of brain-scale dynamics for the evaluation of EEG source-space networks Open
Understanding the dynamics of brain-scale functional networks at rest and during cognitive tasks is the subject of intense research efforts to unveil fundamental principles of brain functions. To estimate these large-scale brain networks, …