Cortical network analysis in patients affected by schizophrenia.
- Authors
- De Vico Fallani, Fabrizio; Maglione, Antongiulio; Babiloni, Fabio; Mattia, Donatella; Astolfi, Laura; Vecchiato, Giovanni; De Rinaldis, Andrea; Salinari, Serenella; Pachou, Ellie; Micheloyannis, Sifis
- Year
- 2010
- Journal
- Brain topography
- PMID
- 20094766
- DOI
- 10.1007/s10548-010-0133-2
In the present study, we studied the structural changes of the brain functional network in a group of schizophrenic (SCHZ) patients during a 2-back working memory task. Cortical signals were obtained from scalp EEG signals through the high-resolution EEG technique, which relies on realistic head models and linear inverse solutions. Functional networks were estimated by computing the spectral coherence--i.e. a measure of synchronization in the frequency domain--between the time series of all the available cortical sources. To analyze those cortical networks we followed a theoretical graph approach by computing the network density as the total number of links and the node degree as the number of links of each cortical source. The major result suggest that in the Alpha2 frequency band (11-13 Hz) the cortical functional networks of the SCHZ patients present the largest differences when compared with those of a group of control (CTRL) subjects. In particular, the structure of the SCHZ network altered radically during the memory task, as the number of links that were different from the REST condition increased sensibly with respect to the CTRL network. In addition, a compensatory mechanism was found in the SCHZ patients during the correct performance of the memory task where the node degree showed a frontal asymmetry with higher activation of the left frontal lobe--i.e. higher number of connections--in the Alpha2 frequency band.
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In this knowledge base
| Title | Year | PMID |
|---|---|---|
| Advances in Electrophysiological Research. | 2015 | 26259089 |
External
| Title | Authors | Journal | Year | Link |
|---|---|---|---|---|
| Alpha and gamma EEG coherence during on-task and mind wandering states in schizophrenia. | Prieto-AlcΓ‘ntara M et al. | β | 2023 | β |
| Comparison of Causality Network Estimation in the Sensor and Source Space: Simulation and Application on EEG. | Koutlis C et al. | β | 2021 | β |
| Impairments of cortico-cortical connectivity in fine tactile sensation after stroke. | Zhou S et al. | β | 2021 | β |
| Comparison of frontal alpha asymmetry among schizophrenia patients, major depressive disorder patients, and healthy controls. | Jang KI et al. | β | 2020 | β |
| The interpreter's brain during rest - Hyperconnectivity in the frontal lobe. | Klein C et al. | β | 2018 | β |
| A resource for assessing information processing in the developing brain using EEG and eye tracking. | Langer N et al. | β | 2017 | β |
| Graph-based analysis of brain connectivity in schizophrenia. | Olejarczyk E et al. | β | 2017 | β |
| Beta-Band Functional Connectivity is Reorganized in Mild Cognitive Impairment after Combined Computerized Physical and Cognitive Training. | Klados MA et al. | β | 2016 | β |
| Mnemonic strategy training of the elderly at risk for dementia enhances integration of information processing via cross-frequency coupling. | Dimitriadis SI et al. | β | 2016 | β |
| The "silent" imprint of musical training. | Klein C et al. | β | 2016 | β |
| Advances in Electrophysiological Research. | Kamarajan C et al. | β | 2015 | β |
| Electroencephalographic characteristics of Iranian schizophrenia patients. | Chaychi I et al. | β | 2015 | β |
| Disruptions in small-world cortical functional connectivity network during an auditory oddball paradigm task in patients with schizophrenia. | Shim M et al. | β | 2014 | β |
| Abnormal task modulation of oscillatory neural activity in schizophrenia. | Dias EC et al. | β | 2013 | β |
| Discriminative analysis of non-linear brain connectivity in schizophrenia: an fMRI Study. | Su L et al. | β | 2013 | β |
| Intra- and inter-frequency brain network structure in health and schizophrenia. | SiebenhΓΌhner F et al. | β | 2013 | β |
| Review of delta, theta, alpha, beta, and gamma response oscillations in neuropsychiatric disorders. | BaΕar E et al. | β | 2013 | β |
| The effects of working memory training on functional brain network efficiency. | Langer N et al. | β | 2013 | β |
| The problem of thresholding in small-world network analysis. | Langer N et al. | β | 2013 | β |
| Waves of regret: a meg study of emotion and decision-making. | Giorgetta C et al. | β | 2013 | β |
| Alcohol affects the brain's resting-state network in social drinkers. | Lithari C et al. | β | 2012 | β |
| Functional brain network efficiency predicts intelligence. | Langer N et al. | β | 2012 | β |
| Glutathione precursor N-acetyl-cysteine modulates EEG synchronization in schizophrenia patients: a double-blind, randomized, placebo-controlled trial. | Carmeli C et al. | β | 2012 | β |
| Graph-based network analysis in schizophrenia. | Micheloyannis S | β | 2012 | β |
| Altered small-world brain networks in temporal lobe in patients with schizophrenia performing an auditory oddball task. | Yu Q et al. | β | 2011 | β |
| A strong parietal hub in the small-world network of coloured-hearing synaesthetes during resting state EEG. | JΓ€ncke L et al. | β | 2011 | β |
| From the analysis of the brain images to the study of brain networks using functional connectivity and multimodal brain signals. | Babiloni F | β | 2010 | β |