In addition, absolute mid beta waves
increased in the same regions (left frontal and right parietal) and these changes might be enhancing the alertness state.
Resting Beta Waves
: Initial resting beta waves
ranged from 5.72 to 24.01 mV with an average of 14.05 mV, with no significant difference in measured resting beta waves
among any groups at any time (Figure 10).
The study indicated interval differences regarding exacerbation, times, EEG monitoring duration, basic frequency, presence of slow-waves and beta waves
, spike discharges, and severity of EEG arrhythmia between patients with and without EBBs, but this study indicated no significance ( P > 0.05).
In Table 1, there are delta waves (frequency 0.5-4 Hz), theta waves (frequency 4-7 Hz), alpha waves (frequency 8-13 Hz), beta waves
(frequency 14-30 Hz), and gamma waves (frequency 30 Hz and over) .
For instance, the presence of beta waves
correlates with excitement, focus and stress.
But it is fine when trying to detect the activity, called beta waves
, that indicates attention.
(13-18 Hz) are needed to solve a problem or complete a task.
The current increased the activity of normal beta waves
-- a kind of brain wave that is usually active during sustained muscle activities, such as holding a book.
These include gamma, theta, alpha and beta waves
. Gamma waves are present during sound sleep; theta waves indicate dozing or sleeping; beta waves
are present during an awake, excited state and alpha waves signify an awake, relaxed state.
By placing the electrodes of an electroencephalogram on the skull right above the cerebral cortex, one can record brain waves that reveal a range of levels of consciousness, from alertness (beta waves
) to NREM sleep (delta waves).
are associated with increased concentration, alertness, and enhanced memory function.