The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) defines obsessions in obsessive-compulsive disorder (OCD) as recurrent thoughts, urges, or images that are intrusive, unwanted, and distressing. Because the manual does not include an explicit ego-dystonicity requirement, its definition risks conflating anxiety-driven intrusions with gratification-driven impulses. This ambiguity carries significant forensic implications. When violent ideation is emotionally gratifying, it may still be described as distressing or unwanted, in a practical sense. In such cases, it may be misclassified as obsessional, potentially mitigating culpability or distorting assessments of intent and risk. Using the cases of William Heirens and Robert Cameron Houston, this article illustrates how DSM language can blur the boundary between true obsessional phenomena, experienced as alien, morally incongruent, and resisted, and ego-syntonic violent ideation that is volitional, reinforcing, and aligned with behavior. Tracing this vulnerability to the DSM's historical shift from psychodynamic to descriptive nosology, the paper argues that diagnostic precision must be grounded in phenomenological meaning rather than in surface description. In forensic contexts, this distinction safeguards determinations of intent, volition, and responsibility. Clarifying that obsessions are, by definition, ego-dystonic would preserve the conceptual integrity of OCD, prevent its misuse in court, and support the ethical and evidentiary coherence of psychiatric testimony.
Tiffany Tryniszewski (Thu,) studied this question.