Beta waveswere first described by Hans Berger from Jena University and were associated with focused attention. In 1929 he wrote “… that the beta waves not the alpha waves of the EEG are the concomitant phenomena ofmental activity.” Initially, all waves at frequencies higher than 13 Hz were...
Beta-wave Correlation Analysis Model based on Unsupervised Machine LearningThe characteristic of the beta wave among the EEG waves corresponds to the stress area of human perception. The over-bandwidth of the stress is extracted by analyzing the beta-wave correlation between the low-bandwidth and ...
a pattern of high-frequency brain waves (beta waves) observed in normal persons upon sensory stimulation, esp. with light, or when they are engaging in purposeful mental activity. [1935–40; translation of GermanBetawellen;seealpha rhythm] ...
After a baseline EEG and a light breakfast, 1.2 ml/kg of ethanol was given orally over 15 min and the EEG repeated four times at hourly intervals. Alcohol caused a significant drop in the percentage of beta waves (14–30 cycles/sec) during the 1st hr. For the percentage of beta waves...
This indicator is the outburst of the beta waves in the late B stage of the EEG, which usually appears as a part of the K complex but is often registered alone. The parameters of the beta response also depend on the quality of the stimulus. Two kinds of consequent stimuli were tested:...
Brain states vs. brain waves Brain state work can be couched in terms such as alpha, delta and so forth. However, this is actually referring to brain waves which specifically come from measuring brain activity using EEG. EEG picks up on changingelectrical activityin the brain, which can be ...
we analysed performance on the No-Distractor condition in relation to the bar probed, considering all four bars. There was a significant effect of bar (p < 0.0001). Planned comparisons using Tukey’s method showed that the effect was driven by better performance on the last bar when comp...
Our recent study demonstrated that prefrontal transcranial photobiomodulation (tPBM) with 1064-nm laser enables significant changes in EEG rhythms, but these changes might result from the laser-induced heat rather than tPBM. This study hypothesized that
EEG showed multifocal irritative activity. Cerebrospinal puncture demonstrated clear fluid, at 5 cells/cm3 (100% leukocytes), and 161 mg/dL of proteins (55.36% albumin and 12.43% gamma globulin). The patient had transitory hyperthermia and vomiting, stertorous respiration with thick bubbles, and ...
confirmed through lead reconstruction (see below). In cases where more than one bipolar channel was within the GPi region, the channel with higher beta during resting wakefulness was selected for analysis for both the PD and dystonia subjects. For cortical signals, we used central EEG channels (...