A number of small scale research studies have shown encouraging results, but there is no current consensus as to the effectiveness of mirror therapy. Reviews of the published research literature by Moseley (Moseley, Gallace & Spence 2008) and Ezendam (Ezendam, Bongers & Jannink 2009) concluded that much of the evidence supporting mirror therapy is anecdotal or comes from studies that had weak methodological quality. In 2011, a large-scale review of the literature on mirror therapy by Rothgangel (Rothgangel et al.