As much as I would like to believe what this is saying when the summary says things like this :
"Fred Travis emphasizes that everything we do changes our brain. Transcendental meditation and making music are activities people should devote themselves to if they wish to change their mind in the right direction. But you can make good progress by following common health recommendations: get enough sleep, work out physically, eat healthily, and don\'t do drugs. How you think also plays a role.
"If you are a very envious, angry, mean person and that\'s the way you think about people that\'s what\'s going to be strengthened in your brain. But if you are very expanded and open and supportive of others, there will be different connections," says Fred Travis."
So people with "High Mind Brain Development" show increase activity in EEGs and they answer questionnaires about having transcendental experiences.
Sounds like a bunch of bullshit to me. They also make a differential between professional musician vs. amateur. Their control group was classical musicians. this sounds like a psychological study claiming to have roots in hard science.