Increased alpha waves
are associated with visualization skills and visual memory (Chapin & Russell-Chapin, 2014; Swingle, 2008a).
Resting Alpha Waves
: Initial resting alpha waves
recorded during testing at baseline ranged from 5.9-51.54 mV with an average of 16.97 +/- 1.40 mV.
The analyses of brain waves strength for groups of Age 1, Age 2, and Age 3 at different flashing frequencies were listed in Tables 6, 7,and 8.For the Age 1 (18 to 29) group, the Alpha waves
were decreased and the Theta/Delta waves were increased, but all of them were not significant.
Indicators of cerebral cortex immaturity included polyrhythmic and decreased frequency (6-7 Hz), of alpha waves
, and rhythm driving only in the low frequency range (4-7 Hz).
Those in the theta range foster deep meditation and REM sleep, and frequencies in the alpha wave
range encourage relaxation.
After treatment with MO leaves extract for 14 days in colchicine infused rats, the EEG showed a significant decrease in spike discharge pattern with a prominent increase in beta waves but alpha waves
were not significantly increased (Table V).
"When you're recording the brain your can see it's natural rhythm, the alpha waves
Brain activity, measured throughout each test, showed that theanine induced strong alpha waves
in neurons, suggesting restfulness.
They've found that the brain-wave patterns of meditators shift from alpha waves
of arousal to theta waves of deep relaxation and problem-solving.
As polysomnographers can attest, it is not unusual to see classic phasic REMs while the EEG is producing alpha waves
. Alpha, by definition and demonstration, occurs while awake with eyes closed.
In addition to its ability to make relaxing alpha waves
, l-theanine seems to cancel out some of the jittery effects of caffeine.
The researchers calculated the power ratio of alpha waves
to theta waves (A/T); the ratio of alpha waves
to delta waves (A/D); and the ratio of alpha waves
to the sum of theta and delta waves (A/T+D).