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Lucie Bréchet

6 papers in the library · 133 citations · publishing 2018-2022

Papers

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EEG Microstates in Altered States of Consciousness

Frontiers in Psychology April 27, 2022 Lucie Bréchet, Christoph M. Michel 41 citations

Conscious experiences unify distinct phenomenological experiences that seem to be continuously evolving. Yet, empirical evidence shows that conscious mental activity is discontinuous and can be parsed into a series of states of thoughts that manifest as discrete spatiotemporal patterns of global neuronal activity lasting for fractions of seconds. EEG measures the brain’s electrical activity...

Reconfiguration of Electroencephalography Microstate Networks after Breath-Focused, Digital Meditation Training.

Brain Connectivity March 1, 2021 Lucie Bréchet, David A Ziegler, Alexander J. Simon et al.

Sustained attention and working memory were improved in young adults after they engaged in a recently developed, closed-loop, digital meditation practice. Whether this type of meditation also has a sustained effect on dominant resting-state networks is currently unknown. In this study, we examined the resting brain states before and after a period of breath-focused, digital meditation training...

EEG microstates of dreams

Scientific Reports October 13, 2020 Lucie Bréchet, Denis Brunet, Lampros Perogamvros et al. 92 citations

Why do people sometimes report that they remember dreams, while at other times they recall no experience? Despite the interest in dreams that may happen during the night, it has remained unclear which brain states determine whether these conscious experiences will occur and what prevents us from waking up during these episodes. Here we address this issue by comparing the EEG activity preceding...

Capturing the spatiotemporal dynamics of self-generated, task-initiated thoughts with EEG and fMRI.

Neuroimage July 1, 2019 Lucie Bréchet, Denis Brunet, Gwénaël Birot et al.

The temporal structure of self-generated cognition is a key attribute to the formation of a meaningful stream of consciousness. When at rest, our mind wanders from thought to thought in distinct mental states. Despite the marked importance of ongoing mental processes, it is challenging to capture and relate these states to specific cognitive contents. In this work, we employed ultra-high field...

Common Recruitment of Angular Gyrus in Episodic Autobiographical Memory and Bodily Self-Consciousness.

Frontiers in Behavioral Neuroscience 2018 Lucie Bréchet, Petr Grivaz, Baptiste Gauthier et al.

Parietal cortex and adjacent parts of the temporal cortex have recently been associated with bodily self-consciousness (BSC). Similarly, growing evidence suggests that the lateral parietal cortex is crucial for the subjective aspects of episodic autobiographical memory (EAM), which is based on the conscious experience of reliving past events. However, the neuroanatomical relationship between...

EEG microstate dynamics indicate a U-shaped path to propofol-induced loss of consciousness

Fiorenzo Artoni, Julien Maillard, Juliane Britz et al. preprint

Abstract It is commonly believed that the stream of consciousness is not continuous but parsed into transient brain states manifesting themselves as discrete spatiotemporal patterns of global neuronal activity. Electroencephalographical (EEG) microstates are proposed as the neurophysiological correlates of these transiently stable brain states that last for fractions of seconds. To further...