The term "guided meditation" is most commonly used in clinical practice, scholarly research, and scientific investigation to signify an aggregate of integrated techniques. The most common and frequently used combination or synthesis comprises meditation music and receptive music therapy, guided imagery, relaxation, some form of meditative practice, and journaling. Hypnosis or hypnotherapeutic procedures may be included as part of an intervention.[31][32][33] Psychotherapist Michael D. Yapko has shown the remarkable similarity between hypnotic procedures and guided meditation procedures.[34]