Challenges to the Diagnosis of Functional Neurological Disorder: Feigning, Intentionality, and Responsibility.

The diagnosis of Functional Neurological Disorder (FND) requires differentiation from other neurologic diseases/syndromes, and from the comparatively rare diagnosis of feigning (Malingering and Factitious Disorder). Analyzing the process of diagnosing FND reveals a necessary element of presumption, which I propose underlies some of the uncertainty, discomfort, and stigma associated with this diagnosis. A conflict between the neurologist's natural social cognition and professional judgement (cognitive dissonance) can be understood by applying a framework originally designed for the determination of moral responsibility. Understanding the source of this cognitive dissonance may effect its alleviation, and in turn, allow more compassionate treatment of patients with FND.