Furthermore, investigative, clinical, scientific, and academic authors frequently measure, analyze, and discuss the effects of creative visualization and guided imagery, collectively and inseparably from other mind–body interventions they are commonly combined with—including meditation music or receptive music therapy, relaxation, guided meditation or meditative praxis, and self-reflective diary-keeping or journaling. This often makes it difficult to attribute positive or negative outcomes to any one of the specific techniques.[76][77][78][79]