Visual working memory (VWM) performance can be improved by retrospectively cueing an item. Different hypotheses have been proposed to explain the mechanisms behind retro-cueing and VWM. There is still no clear electroencephalogram evidence support that retro-cue effect under different validity conditions triggered mechanisms. Herein, we investigated whether modulated underlying in VWM using EEG...

BACKGROUND Despite the high prevalence of seizure, epilepsy and abnormal electroencephalograms in individuals with autism spectrum disorder (ASD), there is little information regarding the relative effectiveness of treatments for seizures in the ASD population. In order to determine the effectiveness of traditional and non-traditional treatments for improving seizures and influencing other clin...

Electroencephalograms (EEGs) contain responses to visual stimulus, however, signal noise often prevents these from being easily obtained. To classify EEG waveforms, a signal processing procedure using the relationship between EEG and ERP, which is the summation of EEG waveforms, was developed. The processing technique involves the prediction of signals using Support Vector Regression. The proce...

Recently, "renormalized entropy" was proposed as a novel measure of relative entropy [P. Saparin et al., Chaos, Solitons and Fractals 4, 1907 (1994)] and applied to several physiological time sequences, including electroencephalograms (EEGs) of patients with epilepsy. We show here that this measure is just a modified Kullback-Leibler (KL) relative entropy, and it gives similar numerical results...

A persistent focal abnormality was observed in 157 (16%) electroencephalograms undertaken in 964 consecutive children with epileptic and non-epileptic seizures seen over one year. CT head scans were performed in 121 (77%) of the 157 children with a focus on the EEG; 26 (21%) showed an abnormality, and 21 (81%) of the abnormalities were localised. There was no difference in the proportion of abn...

Ioglunide, a new nonionic contrast medium, has attracted attention by its virtual absence of immediate or delayed effect on brain electrical activity in animal studies. After 126 myelographies or cisternographies with ioglunide, routine electroencephalograms (EEG) and brain potential frequency analyses were performed in 109 and 73 patients, respectively. EEG changes were noted in 3.7% of subjec...

The clustering of time series from oscillating dynamical systems requires appropriately selected features. We employed features stemming from methods of linear and nonlinear analysis of time series, such as autocorrelation and Lyapunov exponents, as well as features estimating oscillation characteristics. Optimal feature forward selection and standardization method, under the standard k-means c...