This is the Comprehensive Summary of The Psychodynamic Diagnostic Manual (PDM)

N.B.: This website was originally a website dedicated to the Psychodynamic Diagnostic Manual (PDM). It has since changed owners and now focuses on personality tests.

The new owners, however, believe in the original website’s goal and philosophy. Therefore, they want to preserve the original website’s legacy

You can access the The Psychodynamic Diagnostic Manual (PDM) (version 2) here:

https://archive.org/details/isbn_9781462530557

Overview

The Psychodynamic Diagnostic Manual (PDM) represents a collaborative diagnostic framework created by major psychoanalytically-oriented mental health organizations, including the American Psychoanalytic Association, the International Psychoanalytical Association, the Division of Psychoanalysis (39) of the American Psychological Association, the American Academy of Psychoanalysis, and the National Membership Committee on Psychoanalysis in Clinical Social Work. It offers a comprehensive alternative approach to understanding mental health that goes beyond the symptom-focused models of the DSM-IV-TR and ICD-10.

Foundational Evidence and Rationale

The Therapeutic Relationship as Primary

Multiple researchers have demonstrated that the nature of the psychotherapeutic relationship predicts treatment outcomes more robustly than any specific treatment approach (Norcross 2002; Wampold 2001). This relationship reflects interconnected aspects of mind and brain operating together in an interpersonal context, highlighting the complexity that simple symptom-focused approaches miss.

Problems with Symptom-Focused Treatments

Westen, Novotny, and Thompson-Brenner (2004) presented compelling evidence that treatments focusing on isolated symptoms or behaviors rather than personality, emotional, and interpersonal patterns are not effective in sustaining even narrowly defined changes. A meta-analysis revealed that:

• Symptomatic improvement from manualized treatments often did not persist
• Fundamental psychological capacities involving depth and range of relationships, feelings, and coping strategies showed no evidence of long-term change
• In many studies, these critical areas weren’t even measured

Additional research supports this finding (Hilsenroth, Ackerman, et al. 2003; Baumann, Hilsenroth, et al. 2001; Stiles, Agnew-Davies, et al. 1998).

Efficacy of Psychodynamic Approaches

Recent meta-analyses and reviews demonstrate that psychodynamically based therapeutic approaches not only alleviate symptoms but also improve overall emotional and social functioning (Leichsenring & Leibing 2003; Hilsenroth, Ackerman, et al. 2003). Process-oriented research has shown that essential characteristics of the psychotherapeutic relationship as conceptualized by psychodynamic models—including the working alliance, transference phenomena, and stable characteristics of patient and therapist—are more predictive of outcome than any designated treatment approach alone.

Critical Assessment of Current Diagnostic Systems

The Problem of Oversimplification

Over the past 30 years, the mental health field has progressively narrowed its perspective, focusing increasingly on isolated symptoms in hopes of developing an adequate empirical basis for diagnosis and treatment. The result has been that the whole person has become less visible than various disorder constructs. Ironically, this strategy—intended to achieve reliability and validity—may have been misguided.

Reliability Issues

Allen Frances, Chair of the DSM-IV American Psychiatric Association Task Force, acknowledged that the desired reliability has not been obtained (Spiegel 2005). Despite attempts to create consistency through fixed definitions and strict criteria, reliability and validity data for many disorders are not as strong as hoped.

The Co-morbidity Problem

The use of fixed definitions and strict criteria (e.g., requiring four out of six items on a checklist, not three) forces an artificial separation of conditions that are frequently related. Symptoms that may be etiologically, phenomenologically, or contextually interconnected are described as co-morbid conditions, as if discrete problems coexist accidentally—like a sinus infection and broken toe occurring simultaneously. These assumptions about discrete, unrelated conditions are rarely justified by compelling genetic, biochemical, or neurophysiological evidence. Cut-off criteria are often arbitrary committee decisions rather than conclusions from scientific evidence.

Medical Perspective

Paul McHugh (2005) noted in the Journal of the American Medical Association that medicine has moved beyond simply describing symptoms to categorizing disorders according to functional impairment and etiological factors. He contended that mental health classification may have gone too far in a purely descriptive direction, resulting in overlapping categories and excessive co-morbidities that compromise understanding and treatment.

The PDM’s Three-Dimensional Framework

Dimension I: Personality Patterns and Disorders

This dimension is placed first because of accumulating evidence that symptoms cannot be understood, assessed, or treated without understanding the mental life of the person experiencing them. It considers:

1. General functioning level: The person’s location on a continuum from healthier to more disordered functioning
2. Characteristic patterns: The nature of how individuals organize mental functioning and engage the world

Example: A depressed mood manifests markedly differently in someone who fears relationships and avoids feelings versus someone fully engaged in life’s relationships and emotions. There is no single clinical presentation of “depression” as an isolated phenomenon.

Dimension II: Mental Functioning

This dimension provides detailed description of emotional functioning—the capacities contributing to personality and overall psychological health or pathology. It systematically examines:

• Information processing and self-regulation
• Forming and maintaining relationships
• Experiencing, organizing, and expressing different levels of affects/emotions
• Representing, differentiating, and integrating experience
• Using coping strategies and defenses
• Observing self and others
• Forming internal standards

Researchers have developed reliable ways to measure these complex patterns of personality, emotion, and interpersonal processes that constitute the active ingredients of the psychotherapeutic relationship (Shedler and Westen, Dahlbender and colleagues, Blatt). Recent advances in empirical methods allow depth psychology to offer clear operational criteria for this comprehensive range of human social and emotional conditions (Lingiardi, Shedler, et al. 2005).

Dimension III: Manifest Symptoms and Concerns

This dimension begins with DSM-IV-TR categories but expands to describe:

• Affective states
• Cognitive processes
• Somatic experiences
• Relational patterns

The PDM approaches symptom clusters as useful descriptors but does not regard them as highly demarcated biopsychosocial phenomena unless compelling evidence exists. Critically, it presents symptom patterns in terms of the patient’s personal, subjective experience of prevailing difficulties—an aspect often absent from current systems despite being what brings patients to treatment.

Understanding Mental Health vs. Mental Illness

Mental Health as More Than Absence of Symptoms

The PDM argues that mental health comprises more than simply the absence of symptoms. It involves:

• Overall mental functioning
• Relationships
• Emotional depth, range, and regulation
• Coping capacities
• Self-observing abilities

Just as healthy cardiac functioning cannot be defined as merely the absence of chest pain, healthy mental functioning is more than the absence of observable psychopathology—it involves the full range of human cognitive, emotional, and behavioral capacities.

Subtle Deficits Matter

The document provides an important example: While anxiety attacks are frightening, an inability to perceive and respond accurately to others’ emotional cues—a far more subtle problem—may constitute a more fundamental difficulty. This deficit in reading emotional cues may pervasively compromise relationships and thinking and may itself be a source of anxiety.

Scientific Foundation and Methodology

Appropriate Methods for Complexity

The PDM reflects concern that mental health professionals may have uncritically adopted methods from other sciences instead of developing empirical procedures appropriate to the complexity of mental health data. The document emphasizes adapting methods to phenomena rather than vice versa.

The Tension Between Complexity and Measurability

There is healthy tension between capturing clinical complexity (functional understanding) and developing reliable criteria for research (descriptive understanding). The PDM argues for embracing this tension through a step-wise approach where:

1. Complexity and clinical usefulness influence operational definitions
2. These inform research
3. A scientifically based system begins with accurate recognition of complex clinical phenomena
4. It builds gradually toward empirical validation

Critical principle: “Relying on oversimplification and favoring what is measurable over what is meaningful do not operate in the service of good science.”

Functional vs. Etiological Understanding

Even in general medicine, instances where etiological factors are fully understood are rare. Most commonly, we work at the level of functional rather than etiological explanation. For example, neoplastic disorders are thought to be understood etiologically, but researchers still search for causes of many malignancies, attempting to comprehend relationships between genetic, environmental, viral, and infectious processes. Progress in understanding functional nature of disorders should facilitate greater understanding of etiological factors. Both functional and etiological understanding together provide the fullest basis for diagnosis and treatment.

Historical Context and Evolution

Psychoanalytic Tradition’s Contributions and Challenges

The psychoanalytic tradition (depth psychology) has a long history of examining overall human functioning comprehensively, but diagnostic precision has been compromised by two problems:

1. Competing theories: Until recently, attempts to capture human experience were expressed in competing theories and metaphors inspiring more disagreement than consensus
2. Construct reification: Difficulty distinguishing between speculative constructs and observable/inferable phenomena. While descriptive psychiatry reifies “disorder” categories, psychoanalysis has tended to reify theoretical constructs.

Recent Advances

Recent development of empirical methods to quantify and analyze complex mental phenomena has enabled depth psychology to offer clear operational criteria. The current challenge is systematizing these advances with rich clinical experience to provide a widely usable framework.

Clinical Implications

Multi-dimensional Assessment

The PDM’s multi-dimensional approach provides a systematic way to describe patients that is:

• Faithful to their complexity
• Helpful in planning appropriate treatments
• Attentive to the therapeutic relationship supporting treatment

Moving Beyond Symptom Checklists

The framework recognizes that patients may evidence few or many symptom patterns, which may or may not be related, and which must be seen in context of personality and mental functioning—not as isolated, co-morbid conditions.

References

Baumann, B. D., Hilsenroth, M. J., Ackerman, S. J., Baity, M. R., Smith, C. L., Smith, S. R. et al. (2001). The capacity for dynamic process scale: An examination of reliability, validity, and relation to therapeutic alliance. Psychotherapy Research, 11, 275-294.

Hilsenroth, M. J., Ackerman, S. J., Blagys, M. D., Baity, M. R., & Mooney, M. A. (2003). Short-term psychodynamic psychotherapy for depression: An examination of statistical, clinically significant, and technique-specific change. The Journal of Nervous and Mental Disease, 191, 349-357.

Leichsenring, F. & Leibing, E. (2003). The effectiveness of psychodynamic therapy and cognitive behavior therapy in the treatment of personality disorders: A meta-analysis. American Journal of Psychiatry, 1610, 1223-1232.

Lingiardi, V., Shedler, J., & Gazzillo, F. (2005). Assessing personality change in psychotherapy with the SWAP-200: A case study. Under review.

McHugh, P. (2005). Commentary: Striving for Coherence: Psychiatry’s Efforts Over Classification. Journal of the American Medical Association, 293, 2526-2528.

Norcross, J. C. (2002). Empirically supported therapy relationships. In J.C. Norcross (Ed.), Psychotherapy Relationships that Work: Therapist Contributions and Responsiveness to Patients (pp. 3-16). London: Oxford.

Spiegel, A. (2005). The dictionary of disorder: How one man revolutionized psychiatry. The New Yorker, 56-63.

Stiles, W., Agnew-Davies, R., Hardy, G. E., Barkham, M., & Shapiro, D. (1998). Relations of the alliance with psychotherapy outcome: Findings in the second Sheffield Psychotherapy Project. Journal of Consulting and Clinical Psychology, 66, 791-802.

Wampold, B. E. (2001). The great psychotherapy debate – Models, methods and findings. Mahwah, NJ: Erlbaum.

Westen, D., Novotny, C. M., & Thompson-Brenner, H. (2004). The empirical status of empirically supported psychotherapies: Assumptions, findings, and reporting in controlled clinical trials. Psychological Bulletin, 130, 631-663.