Revista de Psicoterapia

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"The objective of a transdiagnostic perspective in psychopathology is to understand better the commonalities among clinically different mental disorders on the basis of a set of shared etiopathogenic dimensions and processes. This approach is clearly opposed to the posited in the current and past psychiatric diagnostic systems, based on categorical constructs that have shown to be inefficacious to explain biological diversity, which was the context in which those constructs arose.
In this paper the focus is on the empirical available information about the usefulnes to approach the several psychopathologies of obsessive-compulsive spectrum from a transdiagnostic perspective. To do that, we decided to focus the analysis on the role played by the unwanted intrusive cognitions (UMI) and their functional consequences in four different mental disorders: two currently included in the obsessive-compulsive spectrum disorders, the Obsessive-Compulsive and the Body Dysmorphic, and two other that do not are included in the abovementioned spectrum, Hypochondriasis and Eating Disorders. The revised data indicate, first, the universality and dimensionality of the UMIs with contents characteristic of each disorder, and secondly, that the UMIs and their associated functional consequences are common symptom dimensions to the four studied disorders. These data allow us a better understanding of the complex comorbidities relationships among the four studied disorders."