It would be nice to have a complete citation of the actual journal article upon which this report is based. As described herein, the journal article seems to be just another scattergun "experiment" which has yielded tantalizing leads, but gives no clear information. The bibliography of the journal article would, at least, clarify whether the researchers even bothered to study the literature for other preliminary studies, or merely conducted yet another preliminary study which neither confirms or refutes any suggestions from previous preliminary studies.