David Yeung on YouTube - click to play

Multiple Personality Disorder, also known as Dissociative Identity Disorder, is a mysterious phenomenon that pits experts against each other. Outside the ordinary day-to-day like experience of most people, it is hard to understand. When alternate personality states (alters) appear, it is tempting for the clinician and others to dismiss them as the patients’ play-acting hysterics. In his psychiatric practice, the author encountered a number of his patients’ alters. Taking to alters is a strange, serious, and ultimately compelling experience. They are not real according to our customary definitions, but neither are they false or fake. They are survivors of childhood abuse, present in shared flesh and blood.

David Yeung received his medical and psychiatric training in Hong Kong, receiving an MBBS degree. he continued his training in London, England receiving a DPM, and in Vancouver British Columbia Canada receiving his FRCPC certification. He practiced psychiatry on three continents, settling into private practice in West Vancouver British Columbia until his retirement in 2006.

Book Cover for Engaging Multiple Personalities (Volume 1) by David Yeung

Engaging Multiple Personalities (Volume 1): Contextual Case Histories

Through books, television and movies, a distorted view of MPD/DID is often presented to the public. Such a view fails to truly present the depth and intensity of the inherent trauma. Ignoring past trauma simply will not help a patient.
The author encountered a number of his patients’ alters face-to-face in his psychiatric practice. He found that the most effective course of therapy was to engage them directly. While alters are not real according to our customary definitions, neither are they false or fake. They are survivors of childhood trauma, child abuse, present in shared flesh and blood. The author discusses the phenomenon of MPD/DID through his clinical case histories. Most important, he elucidates techniques necessary to help these traumatized patients heal. MPD/DID patients can successfully engage in and profit from therapy. By processing the impact of their past traumatic memory, they may reclaim their present.

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Book Cover for Engaging Multiple Personalities (Volume 2) by David Yeung

Volume 2: Therapeutic Guidelines

This volume is written to provide guidance for psychiatrists, psychologists and other therapists in treating individuals with DID. Family members and close friends may also benefit from the information presented here. For therapists with little experience working with DID, this volume presents a clear and direct methodology.

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Engaging Multiple Personalities Volume 3: Living in Multiplicity

Volume 3: Living in Multiplicity

This volume is directed specifically to those with DID and, in particular, to those that have been unable to find a qualified therapist yet. It presents information in an informal but path-oriented way so that such individuals can begin to build the foundation necessary for healing.

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Engaging Multiple Personalities: Volume 4

Volume 4: The Collected Blog Posts

This series discusses the phenomenon of Dissociative Identity Disorder and how it manifests clinically. Most importantly, it elucidates techniques necessary to help those traumatized patients heal. This Volume 4 is a collection of posts Dr. Yeung has made on this website since the publication of Volume 1 of the Series in 2014. The posts are response to questions and concerns raised by members of the DID community including patients, spouses, and therapists.

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