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- W4310551716 abstract "Electroencephalogram (EEG) is a popular tool for studying brain activity. Numerous statistical techniques exist to enhance understanding of the complex dynamics underlying the EEG recordings. Inferring the functional network connectivity between EEG channels is of interest, and non-parametric inference methods are typically applied. We propose a fully parametric model-based approach via cointegration analysis. It not only estimates the network but also provides further insight through cointegration vectors, which characterize equilibrium states, and the corresponding loadings, which describe the mechanism of how the EEG dynamics is drawn to the equilibrium. We outline the estimation procedure in the context of EEG data, which faces specific challenges compared with the common econometric problems, for which cointegration analysis was originally conceived. In particular, the dimension is higher, typically around 64; there is usually access to repeated trials; and the data are artificially linearly dependent through the normalization done in EEG recordings. Finally, we illustrate the method on EEG data from a visual task experiment and show how brain states identified via cointegration analysis can be utilized in further investigations of determinants playing roles in sensory identifications." @default.
- W4310551716 created "2022-12-12" @default.
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- W4310551716 date "2022-11-01" @default.
- W4310551716 modified "2023-10-01" @default.
- W4310551716 title "Classification of brain states that predicts future performance in visual tasks based on co-integration analysis of EEG data" @default.
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- W4310551716 doi "https://doi.org/10.1098/rsos.220621" @default.
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