نتایج جستجو برای: eeg نوزاد

تعداد نتایج: 36962  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1388

زمینه و هدف: هدف از این پژوهش تعیین سطح خونی سرب، کادمیوم و سلنیوم مادر و نوزاد و ارتباط آنها با یکدیگر می باشد. روش بررسی: نمونه ها به شیوه آسان مطالعه از نوع مقطعی توصیفی و تحلیلی بوده و از بین خانمهای باردار مراجعه کننده به بیمارستان لولاگر انتخاب شدند. نمونه خون مادر طی زایمان و نمونه خون بندناف نیز بلافاصله پس از زایمان گرفته شد. پرسشنامه از طریق مصاحبه و اطلاعات موجود در پرونده برای هر ف...

Journal: :journal of ai and data mining 2014
milad azarbad hamed azami saeid sanei a ebrahimzadeh

the record of human brain neural activities, namely electroencephalogram (eeg), is generally known as a non-stationary and nonlinear signal. in many applications, it is useful to divide the eegs into segments within which the signals can be considered stationary. combination of empirical mode decomposition (emd) and hilbert transform, called hilbert-huang transform (hht), is a new and powerful ...

Journal: :BioMedical Engineering OnLine 2017

Journal: :Neurology 2003
Donald L Gilbert Gopalan Sethuraman Uma Kotagal C Ralph Buncher

BACKGROUND EEG results are used for counseling patients with seizures about prognosis and deciding on medications. Published sensitivities of interictal EEG vary widely. OBJECTIVE To account for variation in test characteristics between studies. METHODS Meta-analysis. Medline search, 1970 to 2000, of English language studies. Standard methods for meta-analysis of diagnostic test performance...

2014
Unjoo Lee

Combining Transcranial magnetic stimulation (TMS) and Electroencephaloraphy (EEG) offered insights into neural interaction during cognition which allows the investigation on the causal role of specific brain areas in behavior and the interactive connection between the brain areas. The TMS pulse in the TMS-EEG combining study introduces artifacts in the EEG electrodes which may mask the underlyi...

2000
Robin I. Goldman John M. Stern Jerome Engel Mark S. Cohen

Objective: Electroencephalography (EEG) is a challenge to record simultaneously with functional MRI (fMRI), for it is prone to large artifacts induced by both the static and the time-variant ®elds of the MR scanner. However, truly concurrent EEG/fMRI recording has great potential for clinical and scienti®c neurological applications. We have devised a method for acquiring EEG simultaneously with...

2017
Galina V. Portnova Alina Tetereva Vladislav Balaev Mikhail Atanov Lyudmila Skiteva Vadim Ushakov Alexey Ivanitsky Olga Martynova

Concurrent EEG and fMRI acquisitions in resting state showed a correlation between EEG power in various bands and spontaneous BOLD fluctuations. However, there is a lack of data on how changes in the complexity of brain dynamics derived from EEG reflect variations in the BOLD signal. The purpose of our study was to correlate both spectral patterns, as linear features of EEG rhythms, and nonline...

2016
Lorenz Fiedler Malte Wöstmann Carina Graversen Alex Brandmeyer Thomas Lunner Jonas Obleser

Conventional, multi-channel scalp electroencephalography (EEG) allows the identification of the attended speaker in concurrent-listening (“cocktail party”) scenarios. This implies that EEG might provide valuable information to complement hearing aids with some form of EEG and to install a level of neuro-feedback. To investigate whether a listener’s attentional focus can be predicted from single...

A Motealleh A Zamani, K Rastegar, M Ebrahimian M Razeghi, Z Bagheri

Background: Transcutaneous electrical nerve stimulation (TENS) is a noninvasive, inexpensive and safe analgesic technique used for relieving acute and chronic pain. However, despite all these advantages, there has been very little research into the therapeutic effects of TENS on brain activity. To the best of our knowledge, there is no evidence on the effect of high frequency TENS on the gamma ...

Hojjatollah Alaii, Safoura Raufi,

Introduction: Opiates cause dependency via affect on central nervous system. Locus coeruleus nucleus is a main group of noradrenergic neurons in the brain that plays an important role in the expression of opioid withdrawal signs. During opioid withdrawal, brain waves change in addition to physical and behavioral signs. In this study, we examined the effects of locus coeruleus electrical sti...

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