References of "Vandewalle, Gilles"
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See detailSleep deprivation affects brain global cortical responsivenes
Gaggioni, Giulia ULg; Chellappa, S; Ly, J et al

Conference (2016, June 15)

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See detailEffet de la lumière sur les fonctions cognitives non-visuelles
Vandewalle, Gilles ULg

Scientific conference (2016, March 24)

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See detailDaily and yearly variations in neuronal function and their relationships with cognition and behavior
Vandewalle, Gilles ULg

Scientific conference (2016, February 11)

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See detailSeasonality in human cognitive brain responses
Meyer, Christelle ULg; Muto, Vincenzo ULg; Jaspar, Mathieu ULg et al

in Proceedings of the National Academy of Sciences of the United States of America (2016)

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See detailAutomatic artifacts and arousals detection in whole-night sleep EEG recordings
Coppieters't Wallant, Dorothée ULg; Muto, Vincenzo ULg; Gaggioni, Giulia ULg et al

in Journal of Neuroscience Methods (2016), 258

In sleep electroencephalographic (EEG) signals, artifacts and arousals marking are usually part of the processing. This visual inspection by a human expert has two main drawbacks: it is very time ... [more ▼]

In sleep electroencephalographic (EEG) signals, artifacts and arousals marking are usually part of the processing. This visual inspection by a human expert has two main drawbacks: it is very time consuming and subjective. To detect artifacts and arousals in a reliable, systematic and reproducible automatic way, we developed an automatic detection based on time and frequency analysis with adapted thresholds derived from data themselves. The automatic detection performance is assessed using 5 statistic parameters, on 60 whole night sleep recordings coming from 35 healthy volunteers (male and female) aged between 19 and 26. The proposed approach proves its robustness against inter- and intra-, subjects and raters’ scorings, variability. The agreement with human raters is rated overall from substantial to excellent and provides a significantly more reliable method than between human raters. Existing methods detect only specific artifacts or only arousals, and/or these methods are validated on short episodes of sleep recordings, making it difficult to compare with our whole night results. The method works on a whole night recording and is fully automatic, reproducible, and reliable. Furthermore the implementation of the method will be made available online as open source code. [less ▲]

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Peer Reviewed
See detailSleep deprivation affects brain global cortical responsiveness
Gaggioni, Giulia ULg; Chellappa; Ly et al

Poster (2016)

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See detailLight-sensitive brain pathways and aging
Daneault, Véronique; Dumont, Marie; Massé, Eric et al

in Journal of Physiological Anthropology (2016), 35(9),

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Peer Reviewed
See detailSleep deprivation affects brain global cortical responsiveness
Gaggioni, Giulia ULg; Ly, Julien; Chellappa, Sarah et al

Poster (2015, November 26)

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See detailSleep-wake regulation of brain function and cognition
Vandewalle, Gilles ULg

Scientific conference (2015, November 10)

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Peer Reviewed
See detailSleep deprivation affects global cortical responsiveness
Gaggioni, Giulia ULg; Ly, Julien; Chellappa, Sarah et al

Conference (2015, November 02)

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See detailSommeil et maladie neurodégénérative
Vandewalle, Gilles ULg

Conference (2015, October 23)

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See detailSommeil & vieillissement
Vandewalle, Gilles ULg

Conference given outside the academic context (2015)

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See detailEyes Open on Sleep and Wake: In Vivo to In Silico Neural Networks
Vanvinckenroye, Amaury ULg; Vandewalle, Gilles ULg; Phillips, Christophe ULg et al

in Neural Plasticity (2015)

Functional and effective connectivity of cortical areas are essential for normal brain function under different behavioral states. Appropriate cortical activity during sleep and wakefulness is ensured by ... [more ▼]

Functional and effective connectivity of cortical areas are essential for normal brain function under different behavioral states. Appropriate cortical activity during sleep and wakefulness is ensured by the balanced activity of excitatory and inhibitory circuits. Ultimately, fast, millisecond cortical rhythmic oscillations shape cortical function in time and space. On a much longer time scale, brain function also depends on prior sleep-wake history and circadian processes. However,much remains to be established on how the brain operates at the neuronal level in humans during sleep and wakefulness. A key limitation of human neuroscience is the difficulty in isolating neuronal excitation/inhibition drive in vivo. Therefore, computational models are noninvasive approaches of choice to indirectly access hidden neuronal states. In this review, we present a physiologically driven in silico approach, Dynamic Causal Modelling (DCM), as a means to comprehend brain function under different experimental paradigms. Importantly, DCM has allowed for the understanding of how brain dynamics underscore brain plasticity, cognition, and different states of consciousness. In a broader perspective, noninvasive computational approaches, such as DCM, may help to puzzle out the spatial and temporal dynamics of human brain function at different behavioural states. [less ▲]

Detailed reference viewed: 57 (12 ULg)
Peer Reviewed
See detailSleep deprivation affects brain cortical reactivity
Gaggioni, Giulia ULg; Ly, Julien; Chellappa, Sarah et al

Poster (2015, September 04)

Detailed reference viewed: 18 (2 ULg)
See detailSeasonality in human cognitive brain responses.
Meyer, Christelle ULg; Muto, Vincenzo ULg; Jaspar, Mathieu ULg et al

Poster (2015, September 04)

Detailed reference viewed: 186 (8 ULg)