Inter-band Bispectral Analysis of EEG Background Activity to Characterize Alzheimer's Disease Continuum
نویسندگان
چکیده
منابع مشابه
Approximate Entropy of EEG Background Activity in Alzheimer's Disease Patients
Non-linear analysis of the electroencephalogram (EEG) background activity can help to obtain a better understanding of abnormal dynamics in the brain. The aim of this study was to analyze the regularity of the EEG time series of Alzheimer’s disease (AD) patients to test the hypothesis that the irregularity of the AD patients’ EEG is lower than that of age-matched controls. We recorded the EEG f...
متن کاملAnalysis of regularity in the EEG background activity of Alzheimer's disease patients with Approximate Entropy.
OBJECTIVE The aim of this study was to analyse the regularity of the EEG background activity of Alzheimer's disease (AD) patients to test the hypothesis that the irregularity of the AD patients' EEG is lower than that of age-matched controls. METHODS We recorded the EEG from 19 scalp electrodes in 10 AD patients and 8 age-matched controls and estimated the Approximate Entropy (ApEn). ApEn is ...
متن کاملEntropy analysis of the EEG background activity in Alzheimer's disease patients.
Alzheimer's disease (AD) is the most common neurodegenerative disorder. Although a definite diagnosis is only possible by necropsy, a differential diagnosis with other types of dementia and with major depression should be attempted. The aim of this study was to analyse the electroencephalogram (EEG) background activity of AD patients to test the hypothesis that the regularity of the AD patients...
متن کاملTime-varying bispectral analysis of visually evoked multi-channel EEG
Theoretical foundations of higher order spectral analysis are revisited to examine the use of time-varying bicoherence on non-stationary signals using a classical short-time Fourier approach. A methodology is developed to apply this to evoked EEG responses where a stimulus-locked time reference is available. Short-time windowed ensembles of the response at the same offset from the reference are...
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In studies of perceptual learning (PL), subjects are typically highly trained across many sessions to achieve perceptual benefits on the stimuli in those tasks. There is currently significant debate regarding what sources of brain plasticity underlie these PL-based learning improvements. Here we investigate the hypothesis that PL, among other mechanisms, leads to task automaticity, especially i...
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ژورنال
عنوان ژورنال: Frontiers in Computational Neuroscience
سال: 2020
ISSN: 1662-5188
DOI: 10.3389/fncom.2020.00070