Pascal L. Faber
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View article: Linear causal filtering: definition and theory
Linear causal filtering: definition and theory Open
1. Abstract This work provides a framework based on multivariate autoregressive modeling for linear causal filtering in the sense of Granger. In its bivariate form, the linear causal filter defined here takes as input signals A and B, and …
View article: Pervasive false brain connectivity from electrophysiological signals
Pervasive false brain connectivity from electrophysiological signals Open
1. Abstract Signals of brain electric neuronal activity, either invasively measured or non-invasively estimated, are commonly used for connectivity inference. One popular methodology assumes that the neural dynamics follow a multivariate a…
View article: Fundamentally altered global- and microstate EEG characteristics in Huntington’s disease
Fundamentally altered global- and microstate EEG characteristics in Huntington’s disease Open
Combining global- and microstate analyses can be useful for a better understanding of progressive brain deterioration in HD.
View article: Brain-electric activity during eyes open Brahma Kumaris Rajayoga meditation.
Brain-electric activity during eyes open Brahma Kumaris Rajayoga meditation. Open
Brahma Kumaris Rajayoga’s open eyed ‘seed stage meditation’ was studied in 52 meditators. Meditation stages: concentration on peace, realization of being a soul and communion with the Supreme Soul. Frequency domain brain electric source lo…
View article: From thoughtless awareness to effortful cognition: alpha - theta cross-frequency dynamics in experienced meditators during meditation, rest and arithmetic
From thoughtless awareness to effortful cognition: alpha - theta cross-frequency dynamics in experienced meditators during meditation, rest and arithmetic Open
View article: From thoughtless awareness to effortful cognition: alpha - theta cross-frequency dynamics in experienced meditators during meditation, rest and arithmetic
From thoughtless awareness to effortful cognition: alpha - theta cross-frequency dynamics in experienced meditators during meditation, rest and arithmetic Open
Neural activity is known to oscillate within discrete frequency bands and the synchronization between these rhythms is hypothesized to underlie information integration in the brain. Since strict synchronization is only possible for harmoni…
View article: Reduced Brain Electric Activity and Functional Connectivity in Bipolar Euthymia: An sLORETA Source Localization Study
Reduced Brain Electric Activity and Functional Connectivity in Bipolar Euthymia: An sLORETA Source Localization Study Open
Bipolar disorder (BD) is a chronic illness with a relapsing and remitting time course. Relapses are manic or depressive in nature and intermitted by euthymic states. During euthymic states, patients lack the criteria for a manic or depress…
View article: Measuring Granger-causal effects in multivariate time series by system editing: PASCAL codes, executable, and toy data (human readable)
Measuring Granger-causal effects in multivariate time series by system editing: PASCAL codes, executable, and toy data (human readable) Open
What is the role of each node in a system of many interconnected nodes? This can be quantified by comparing the dynamics of the nodes in the intact system, with their modified dynamics in the edited system, where one node is deleted. In de…
View article: Measuring Granger-causal effects in multivariate time series by system editing
Measuring Granger-causal effects in multivariate time series by system editing Open
1. Abstract What is the role of each node in a system of many interconnected nodes? This can be quantified by comparing the dynamics of the nodes in the intact system, with their modified dynamics in the edited system, where one node is de…
View article: A comparison of bivariate frequency domain measures of electrophysiological connectivity
A comparison of bivariate frequency domain measures of electrophysiological connectivity Open
1 Abstract The problem of interest here concerns electrophysiological signals from two cortical sites, acquired as invasive intracranial recordings, or from non-invasive estimates of cortical electric neuronal activity computed from EEG or…
View article: Comparing EEG/MEG neuroimaging methods based on localization error, false positive activity, and false positive connectivity
Comparing EEG/MEG neuroimaging methods based on localization error, false positive activity, and false positive connectivity Open
1. Abstract EEG/MEG neuroimaging consists of estimating the cortical distribution of time varying signals of electric neuronal activity, for the study of functional localization and connectivity. Currently, many different imaging methods a…
View article: Measures of time series coupling based on generalized weighted multiple regression
Measures of time series coupling based on generalized weighted multiple regression Open
1. Abstract The sharing and the transmission of information between cortical brain regions is carried out by mechanisms that are still not fully understood. A deeper understanding should shed light on how consciousness and cognition are im…
View article: Measures of time series coupling based on generalized weighted multiple regression
Measures of time series coupling based on generalized weighted multiple regression Open
The sharing and the transmission of information between cortical brain regions is carried out by mechanisms that are still not fully understood. A deeper understanding should shed light on how consciousness and cognition are implemented in…
View article: The EEG microstate topography is predominantly determined by intracortical sources in the alpha band
The EEG microstate topography is predominantly determined by intracortical sources in the alpha band Open
View article: Innovations orthogonalization: a solution to the major pitfalls of EEG/MEG "leakage correction"
Innovations orthogonalization: a solution to the major pitfalls of EEG/MEG "leakage correction" Open
The problem of interest here is the study of brain functional and effective connectivity based on non-invasive EEG-MEG inverse solution time series. These signals generally have low spatial resolution, such that an estimated signal at any …
View article: EEG microstates during different phases of Transcendental Meditation practice
EEG microstates during different phases of Transcendental Meditation practice Open
View article: The cross-frequency mediation mechanism of intracortical information transactions
The cross-frequency mediation mechanism of intracortical information transactions Open
1. Abstract In a seminal paper by von Stein and Sarnthein (2000), it was hypothesized that “bottom-up” information processing of “content” elicits local, high frequency (beta-gamma) oscillations, whereas “top-down” processing is “contextua…
View article: The dual frequency RV-coupling coefficient: a novel measure for quantifying cross-frequency information transactions in the brain
The dual frequency RV-coupling coefficient: a novel measure for quantifying cross-frequency information transactions in the brain Open
Identifying dynamic transactions between brain regions has become increasingly important. Measurements within and across brain structures, demonstrating the occurrence of bursts of beta/gamma oscillations only during one specific phase of …
View article: The dual frequency RV-coupling coefficient: a novel measure for quantifying cross-frequency information transactions in the brain
The dual frequency RV-coupling coefficient: a novel measure for quantifying cross-frequency information transactions in the brain Open
Identifying dynamic transactions between brain regions has become increasingly important. Measurements within and across brain structures, demonstrating the occurrence of bursts of beta/gamma oscillations only during one specific phase of …
View article: Brain electric idiosyncrasies and commonalities of meditation states
Brain electric idiosyncrasies and commonalities of meditation states Open
View article: EEG of two persons during their roles as spiritual trance healer and as client – a pilot study
EEG of two persons during their roles as spiritual trance healer and as client – a pilot study Open
Two experienced spiritual (trance) healers who occasionally treat each other were recorded simultaneously, each with 27 EEG channels. The participants alternated their roles as healer and client (8 runs of 15 min: each 4 times healer, 4 ti…