Eliciting cerebral seizure during electroconvulsive therapy (ECT) is essential for therapeutic purposes. When it exceeds beyond 120 seconds (Freeman, 1995) i.e., prolonged, it adds to adverse effects of ECT. Estimating seizure duration using 'cuff method' alone has limitations. This study examined the merits of electroencephalographic (EEG) monitoring in routine ECT practice on a large represen...

Sleep has beneficial effects on brain function and learning, which are reflected in plastic changes in the cortex. Early childhood is a time of rapid maturation in fundamental skills-e.g., language, cognitive control, working memory-that are predictive of future functioning. Little is currently known about the interactions between sleep and brain maturation during this developmental period. We ...

how to cite this article: karimzadeh p, rezayi a, togha m, ahmadabadi f, derakhshanfar h, azargashb e, khodaei f. the best time for eeg recording in febrile seizure. iran j child neurol. 2014 winter; 8(1):20-25. objective some studies suggest that detection of epileptic discharge is unusual during the first postictal week of febrile seizure and others believe that eegs carried out on the day of...

The recent literatures indicate that central nervous system (CNS) is highly vulnerable to systemic hyperthermia induced by whole body heating on conscious animals. In the present study, cerebral electrical activity or EEG (electroencephalogram) following exposure to high environmental heat has been studied in moving rats. Rats were divided into three group (i) acute heat stress-subjected to a s...

PURPOSE Electrographic seizures are common in encephalopathic critically ill children, but identification requires continuous EEG monitoring (CEEG). Development of a seizure prediction model would enable more efficient use of limited CEEG resources. We aimed to develop and validate a seizure prediction model for use among encephalopathic critically ill children. METHOD We developed a seizure ...

background: we evaluated the diagnostic value of electroencephalography (eeg), video-eeg monitoring (vem) and magnetic resonance imaging (mri) of the brain with epilepsy protocol in patients with complex partial epilepsy. methods: forty-two consecutive patients underwent complete neurological examination, eeg, and mri with a modified epilepsy protocol. a subset of these patients (n = 29) also u...

In this paper, unique approach is presented for the electroencephalography (EEG) signals analysis. This is based on Eigen values distribution of a matrix which is called as scaled Hankel matrix. This gives us a way to find out the number of Eigen values essential for noise reduction and extraction of signal in singular spectrum analysis. This paper gives us an approach to classify the EEG signa...

This paper presents a new time-frequency based EEG seizure detection method. This method uses the distribution of interspike intervals as a criterion for discriminating between seizure and nonseizure activities. To detect spikes in the EEG, the signal is mapped into the time-frequency domain. The high instantaneous energy of spikes is reflected as a localized energy in time-frequency domain. Hi...