نتایج جستجو برای: eeg alpha power

تعداد نتایج: 710750  

Ahmad shakeri Ali Yadollahpour,

Introduction: Quantitative assessments of the effects induced by repetitive transcranial magnetic stimulation (rTMS) are crucial to develop more efficient and personalized treatments. Objectives: To determine the spectral powers of different subbands of EEG correlated with treatment response to rTMS.   Materials and Methods: the spectral powers of different...

Journal: :Psychophysiology 2009
Joshua Carp Rebecca J Compton

Error commission evokes changes in event-related potentials, autonomic nervous system activity, and behavior, presumably reflecting the operation of a cognitive control network. Here we test the hypothesis that errors lead to increased cortical arousal, measurable as changes in electroencephalogram (EEG) alpha band power. Participants performed a Stroop task while EEG was recorded. Following co...

Journal: :Seizure 1998
Miles E. Drake Hosi Padamadan Sharon A. Newell

The interictal EEG is often normal in epilepsy patients, particularly with partial seizures of extratemporal origin. Quantitative techniques of EEG analysis may increase the yield of diagnostic abnormality in such patients. Thirty patients with partial seizures of frontal or temporal origin had EEG recorded from left frontal (F7-C3), right frontal (F8-C4), left posterior (T5-O1), and right post...

Journal: :NeuroImage 2009
René Scheeringa Karl Magnus Petersson Robert Oostenveld David G. Norris Peter Hagoort Marcel C. M. Bastiaansen

PET and fMRI experiments have previously shown that several brain regions in the frontal and parietal lobe are involved in working memory maintenance. MEG and EEG experiments have shown parametric increases with load for oscillatory activity in posterior alpha and frontal theta power. In the current study we investigated whether the areas found with fMRI can be associated with these alpha and t...

Journal: :Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 2004
Davide V Moretti Claudio Babiloni Giuliano Binetti Emanuele Cassetta Gloria Dal Forno Florinda Ferreric Raffaele Ferri Bartolo Lanuzza Carlo Miniussi Flavio Nobili Guido Rodriguez Serenella Salinari Paolo M Rossini

OBJECTIVE This EEG study investigates the role of the cholinergic system, cortico-cortical connections, and sub-cortical white matter on the relationship between individual EEG frequencies and their relative power bands. METHODS EEGs were recorded at rest in 30 normal elderly subjects (Nold), 60 mild Alzheimer disease (AD) and 20 vascular dementia (VaD) patients, comparable for Mini Mental St...

2015
Francesco Infarinato Anisur Rahman Claudio Del Percio Yves Lamberty Regis Bordet Jill C. Richardson Gianluigi Forloni Wilhelmus Drinkenburg Susanna Lopez Fabienne Aujard Claudio Babiloni Fabien Pifferi Daniele Marinazzo

The gray mouse lemur (Microcebus murinus) is considered a useful primate model for translational research. In the framework of IMI PharmaCog project (Grant Agreement n°115009, www.pharmacog.org), we tested the hypothesis that spectral electroencephalographic (EEG) markers of motor and locomotor activity in gray mouse lemurs reflect typical movement-related desynchronization of alpha rhythms (ab...

Journal: :Journal of physiological anthropology and applied human science 2001
T Yuasa A Maeda S Higuchi Y Motohashi

The purpose of this study was to investigate the hypothesis that EEG values match other comprehensive activities of daily living (ADL) evaluations between stroke survivors and normal controls. Various functions related to ADL were examined by means of ADL assessments (Measurement of Competence in the Elderly Living at Home, Barthel Index, Stroke Impairment Assessment Set, time needed to walk 10...

Journal: :Brain connectivity 2012
René Scheeringa Karl Magnus Petersson Andreas Kleinschmidt Ole Jensen Marcel C. M. Bastiaansen

In the past decade, the fast and transient coupling and uncoupling of functionally related brain regions into networks has received much attention in cognitive neuroscience. Empirical tools to study network coupling include functional magnetic resonance imaging (fMRI)-based functional and/or effective connectivity, and electroencephalography (EEG)/magnetoencephalography-based measures of neuron...

Journal: :NeuroImage 2008
Andrew C. N. Chen Weijia Feng Huixuan Zhao Yanling Yin Peipei Wang

Eyes-closed (EC) and eyes-open (EO) are essential behaviors in mammalians, including man. At resting EC-EO state, brain activity in the default mode devoid of task-demand has recently been established in fMRI. However, the corresponding comprehensive electrophysiological conditions are little known even though EEG has been recorded in humans for nearly 80 years. In this study, we examined the s...

2013
Ruth E. Propper Jenna Pierce Mark W. Geisler Stephen D. Christman Nathan Bellorado

Study Aim: Frontal electroencephalographic (EEG) alpha band power during rest shows increased right, and/or decreased left, hemisphere activity under conditions of state or trait withdrawal-associated affect. Non-right-handers (NRH) are more likely to have mental illnesses and dispositions that involve such withdrawal-related affect. The aim of the study was to examine whether NRH might be char...

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