Alpha brainwave?
I thought meditation practices do the same.
I don't think you can really change your personality, perhaps its changing the way you think? or emotional control?
Anyhow, I have been practicing this Silva Ultra Mind and American Monk
meditation for a few months, it does make me feel different, for the starting few weeks
more joyous, relax, forgiving and think less negative about others
I don't know if i got used to it and don't realize the changes or what.
And this meditation training is free,
You can get 9 free lessons from Silva
And a few lessons from AmericanMonk , Burt Goldman