نتایج جستجو برای: eeg spectral features

تعداد نتایج: 700898  

Journal: :journal of biomedical physics and engineering 0
kh rezaee 1hakim sabzevari university of sabzevar, department of electrical and computer engineering, sabzevar, iranسازمان های دیگر: 2sabzevar university of medical science, department of medical physics and biomedical engineering, new technologies research center,

background: epilepsy is a severe disorder of the central nervous system that predisposes  the person to recurrent seizures. fifty million people worldwide suffer from  epilepsy; after alzheimer's and stroke, it is the third widespread nervous disorder. objective: in this paper, an algorithm to detect the onset of epileptic seizures  based on the analysis of brain electrical signals (eeg) has be...

Journal: :British journal of anaesthesia 1996
C E Thomsen P F Prior

Methodology for assessment of depth of anaesthesia based on analysis of the electroencephalogram (EEG) is controversial. Techniques range from display of single measures, for example median value of the frequency spectrum, to dedicated pattern recognition systems based on measures of several EEG features. We have compared the performance of four techniques using tape-recorded data from 23 patie...

Journal: :International journal of neural systems 2012
Roshan Joy Martis U. Rajendra Acharya Jen-Hong Tan Andrea Petznick Ratna Yanti Chua Kuang Chua E. Y. K. Ng Louis Tong

Epilepsy is a global disease with considerable incidence due to recurrent unprovoked seizures. These seizures can be noninvasively diagnosed using electroencephalogram (EEG), a measure of neuronal electrical activity in brain recorded along scalp. EEG is highly nonlinear, nonstationary and non-Gaussian in nature. Nonlinear adaptive models such as empirical mode decomposition (EMD) provide intui...

2017
Abeer Al-Nafjan Manar Hosny Areej Al-Wabil Yousef Al-Ohali

Estimation of human emotions from Electroencephalogram (EEG) signals plays a vital role in developing robust Brain-Computer Interface (BCI) systems. In our research, we used Deep Neural Network (DNN) to address EEG-based emotion recognition. This was motivated by the recent advances in accuracy and efficiency from applying deep learning techniques in pattern recognition and classification appli...

The right and left hand Motor Imagery (MI) analysis based on the electroencephalogram (EEG) signal can directly link the central nervous system to a computer or a device. This study aims to identify a set of robust and nonlinear effective brain connectivity features quantified by transfer entropy (TE) to characterize the relationship between brain regions from EEG signals and create a hierarchi...

Journal: :Journal of neuroscience methods 2015
Ian Daly Faustina Hwang Alexis Kirke Asad Malik James Weaver Duncan Williams Eduardo Miranda Slawomir J Nasuto

BACKGROUND The electroencephalogram (EEG) may be described by a large number of different feature types and automated feature selection methods are needed in order to reliably identify features which correlate with continuous independent variables. NEW METHOD A method is presented for the automated identification of features that differentiate two or more groups in neurological datasets based...

Journal: :EURASIP J. Adv. Sig. Proc. 2005
David A. Peterson James N. Knight Michael J. Kirby Charles W. Anderson Michael H. Thaut

Efforts to develop a brain-computer interface based on the scalp-recorded electroencephalogram (EEG) have progressed substantially over the past decade. However, most EEG-based BCI systems require subjects to perform tasks that do not directly map to simple binary commands such as “yes” or ”no”. Furthermore, successful BCI implementations often require extensive biofeedback training over many w...

Journal: :IEEE Transactions on Neural Systems and Rehabilitation Engineering 2021

In the last decade, functional connectivity (FC) has been increasingly adopted based on its ability to capture statistical dependencies between multivariate brain signals. However, role of FC in context brain-computer interface applications is still poorly understood. To address this gap knowledge, we considered a group 20 healthy subjects during an EEG-based hand motor imagery (MI) task. We st...

Journal: :International journal of psychophysiology : official journal of the International Organization of Psychophysiology 2004
Garrick L Wallstrom Robert E Kass Anita Miller Jeffrey F Cohn Nathan A Fox

A variety of procedures have been proposed to correct ocular artifacts in the electroencephalogram (EEG), including methods based on regression, principal components analysis (PCA) and independent component analysis (ICA). The current study compared these three methods, and it evaluated a modified regression approach using Bayesian adaptive regression splines to filter the electrooculogram (EOG...

Journal: :Neurocomputing 2013
Germán Rodríguez-Bermúdez Pedro J. García-Laencina Joaquín Roca-González Joaquín Roca-Dorda

Brain Computer Interface systems (BCIs) based on Electroencephalogram (EEG) signal processing allow to translate the subject’s brain activities into control commands for computer devices. This paper presents an efficient embedded approach for feature selection and linear discrimination of EEG signals. In the first stage, four well-known feature extraction methods are used: Power spectral featur...

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