At 40 min in the following interview which is spoken in Swiss German

Diego Hangartner:

Diego Hangartner from Küsnacht near Zurich, Switzerland: mental fitness can be trained

who was interviewed by Luke Widmer who leads the discussions at the Meditation Scene Switzerland:

Luke Widmer leads the discussions at the Meditation Scene Switzerland

Diego Hangartner sais in the interview at 40 min:

Starting from 2004 he was participating in scientific studies about the effect of meditation in the United States and Europe. And Diego says he still is participating even today.“

2004 was the year the PNAS paper:

Long-term meditators self-induce high-amplitude gamma synchrony during mental practice

https://scholar.google.com/scholar?hl=de&as_sdt=0%2C5&q=Long-term+meditators+self-induce+high-amplitude+gamma+synchrony+during+mental+practice&btnG=

was published by Richard R. Davidsons group. It was cited more than 2 000 times up to the present day. It was shortly reviewed in the following video of Matthieu Richard:

But Peter Gamma from www.petergamma.org

Does not know where these scientific studies Diego Hangartner is participating are published. Do you know it? Write it in the comments below