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Review of “Common Factors,” Personal Reflections, and Introduction of the Shaving Brush Model of Integrated Psychotherapies


Journal of Psychiatric Practice®: September 2019 - Volume 25 - Issue 5 - p 374–378
doi: 10.1097/PRA.0000000000000418

This column reviews and updates “common factors” in psychotherapy, as originally described by Saul Rosenzweig in 1936. The author, a psychiatrist who has used multiple modalities of psychotherapeutic treatment over 4 decades, shares personal reflections concerning these “common factors” and introduces a model of integrated psychotherapies named for his grandfather’s shaving brush.

POSTER: Veterans Health Administration, Brockton, MA

An earlier version of this paper was presented at the Massachusetts Psychiatric Society Psychotherapy Conference at the Massachusetts Medical Society in Waltham, Massachusetts on September 10, 2016 and appeared in the Massachusetts Psychiatric Society Bulletin, Issue 167, October 2016, p. 6-8. This updated version of the article is being published here with permission from the Massachusetts Psychiatric Society.

The author declares no conflicts of interest.

Please send correspondence to: Mark F. Poster, MD, 1600 Washington Street, Apartment 121, West Newton, MA 02465 (e-mail:

Online date: September 6, 2019

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