All living tissues possess electrical properties which can be studied and the brain is no exception. Electroencephalography is one of the methods of study of this electrical activity of the brain. Caton, an -Englishman, in 1874, discovered evidences of electrical activity in the brains of animals. With the advent of Einthovan string galvanometer in 1906, it was possible to record the electrical...

objective: the present study compares the efficacy of two most commonly used biofeedback relaxation techniques in the treatment of generalized anxiety disorder. method: 45 individuals with generalized anxiety disorder were randomly assigned to three groups (n=15): group i received electromyographic biofeedback relaxation training, group ii received alpha-electroencephalographic biofeedback rela...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: there is a broad variation in reported frequencies of seizure in multiple sclerosis (ms). in this study, the seizure and its characteristics analyzed among a large group of patients with ms. materials and methods: we reviewed the medical records of all definite ms patients referred to the ms clinic of kashani h...

Abstract Aim The aim of this pilot study was to examine the acute effect a psychomotor intervention (PMI) on auditory‐verbal memory, emotional state, and electrocortical activity recorded by electroencephalography subjectively healthy older adults (sHE) diagnosed with mild cognitive impairment (MCIs). Methods Eleven MCIs 11 sHE underwent single 45‐min PMI. Resting state electroencephalography, ...

OBJECTIVE Brain-computer interfaces (BCIs) based on electroencephalography (EEG) have been shown to accurately detect mental activities, but the acquisition of high levels of control require extensive user training. Furthermore, EEG has low signal-to-noise ratio and low spatial resolution. The objective of the present study was to compare the accuracy between two types of BCIs during the first ...

introduction: brain computer interface (bci) systems based on movement imagination (mi) are widely used in recent decades. separate feature extraction methods are employed in the mi data sets and classified in virtual reality (vr) environments for real-time applications. methods: this study applied wide variety of features on the recorded data using linear discriminant analysis (lda) classifier...

epilepsy is an important disease with a cumulative incidence of 3% all over the life and more than half of them are started from childhood. in this study we surveyed magnetic resonance imaging (mri) findings in epileptic children and its relation with clinical and demographic findings in order to find better diagnostic and treatment modalities for these children in the future. in this cross sec...

in the present work sedative and hypnotic effects of aqueous extract of aloe vera in rats have been investigated. in order to evaluate the overall hypnotic effects of the aloe vera extract, open field and loss of righting reflex tests were primarily used. the sedative and hypnotic effects of the extract were then confirmed by detection of remarkable raise in the total sleeping time through anal...

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...