Brain scan study participator about the effect of meditation Mingyur Rinpoche gives spiritual advices on YouTube – but where can we find the latest results about is meditation research project?

Unfortunately, Mingyur Rinpoche does not say much anymore about scientific brain scans studies. Is Richard R. Davidsons brain scan project a failure when 20 years after it started Mingyur Rinpoche does not talk about it anymore, as well as Richard R. Davidson? Both reported about it very enthousiastic 10 – 20 years ago. We suppose that these people still participate and perform these studies, as top meditator Diego Hangartner from Switzerland is still participating in these studies as well. But where do we find the latest scientific results of these meditation research projects? In the book “Altered Traits”? Is this all? “Altered Traits 1” showed the effect of 20 min daily practice of meditation on body and brain. Will there be a book “Altered Traits 2” which shows the effect of 40 min of daily meditation practice?