Sentences with phrase «eeg frequencies»

In the course of the practice of Transcendental Meditation, coherence is observed across different EEG frequencies.

The tDCS group also showed a higher indication of Event Related Desynchronisation, a well - established neurophysiological observation that when we move one of our hands or imagine the movement, the amplitude of certain EEG frequencies in the opposite hemisphere of the brain decreases.

The predominant EEG frequencies are in the range of 3 to 20 cycles per second.

Not exact matches

With this roadmap illustrating the magnitude of visual changes over time in the videos, Brookshire overlaid the participants» EEGs to see whether people entrain around the normal visual frequency of about 10 Hz, or at the lower frequencies of signs and phrases in sign language — about 2 Hz.

EEG - based DOA monitors were used in half of all departments, but the frequency and indication for their use varied.

«The EEG signal gets buried under all this noise — but our system is able to separate not only the EEG signal, but the frequency of the flickering LED within this signal.»

They had to greatly simplify the EEG data being collected (using only canonical frequency bands) to come up with an intuitive way to visualize the neural activity.

The onset of meditation in the monks coincided with an increase in high - frequency EEG electrical activity in the so - called gamma band (spanning 25 to 42 oscillations a second), which was synchronized across the frontal and parietal cortices.

Later, hippocampal oscillations of the same type were observed in rats; however, the frequency of rat hippocampal EEG oscillations averaged about 8 Hz and rarely fell below 6 Hz.

Scalp EEG is generated almost entirely by the cerebral cortex, and even if it falls into a certain frequency range, this can not be taken to indicate that it has any functional dependence on the hippocampus.

To establish the frequency specificity of the effects found with EEG - informed fMRI for the gamma and theta bands, we explored EEG - BOLD coupling across the whole EEG spectrum in the left auditory region that was more activated in control than ASD subjects during the movie in the fMRI - only analysis.

«Cortical theta rhythms» are low - frequency components of scalp EEG, usually recorded from humans.

EEG's and ECG's are simply charting the frequencies of the brain and the heart.

The processed EEG was then submitted to a discrete Fourier analysis, and amplitude in individual frequency bins from 1 to 20 was computed.

Specifically, alpha is a dominant frequency band in the EEG, seen in adults at 8 — 13 Hz, and is associated with attention to a range of sensory stimuli.

Functional connectivity refers to the functionally integrated relationship among spatially separated brain regions, which is characterized by phase synchronization of EEG signals of two brain regions in the infant EEG alpha frequency band (6 — 9 Hz)[26].