As a note, there is a longer study, weekly for 3.5 years, that has been published, in part, at: http://journals.plos.org/plosone/article?id=10.1371/journal.pone

As a note, there is a longer study, weekly for 3.5 years, that has been published, in part, at: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0140134 http://journals.plos.org/plosone/article?id=10.1371/journal..... The results in this paper relate to the functional MRI aspect of the study.