The delusional dimension of anorexia nervosa: phenomenological, neurobiological and clinical perspectives



Título del documento: The delusional dimension of anorexia nervosa: phenomenological, neurobiological and clinical perspectives
Revista: Archives of clinical psychiatry
Base de datos: PERIÓDICA
Número de sistema: 000419339
Autores: 1
2
3
3
1
Instituciones: 1Universidad de Valparaíso, Facultad de Medicina, Valparaíso. Chile
2Universidad de Valparaíso, Centro de Investigación Biomédica, Valparaíso. Chile
3Universidad de Chile, Facultad de Medicina, Santiago de Chile. Chile
Año:
Periodo: Ene-Feb
Volumen: 45
Número: 1
Paginación: 15-21
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Delusional characteristics have been largely ignored in patients suffering from anorexia nervosa (AN). Objectives: To review the literature on delusional features in AN from phenomenological, neurobiological, and clinical viewpoints. Methods: Data were obtained through searches of Medline, PubMed, SciELO and Cochrane Library. Results: Distorted beliefs in AN may range from an overvalued idea to an overt delusion, involving affective, personality and/or psychotic disorders. Studies confirm alterations in monoaminergic systems. It has also been seen a decreased integration of visual/proprioceptive information, and alterations in neural networks involved in body processing. It is known that body image distortion may present “delusional proportions” as a consequence of great concern about body. Concomitantly, “embodied defence hypothesis” has been proposed. Restrictive AN exhibits higher levels of delusionality, and a particular delusional type of AN has been suggested, associated with a worse long-term outcome. Low doses of atypical antipsychotics are recommended combined with cognitive techniques. Discussion: Delusional thinking in AN is likely a dynamic and dimensional phenomenon that can vary, both in nature and/or severity, whereas high insight levels, before and after refeeding, result in positive outcomes. Neurobiological research on this topic must be encouraged, since clinical and phenomenological approaches are comparatively more frequently reported
Disciplinas: Medicina
Palabras clave: Psiquiatría,
Metabolismo y nutrición,
Neurología,
Anorexia nerviosa,
Delirio,
Imagen corporal,
Neurobiología
Keyword: Psychiatry,
Metabolism and nutrition,
Neurology,
Anorexia nervosa,
Delusion,
Body image,
Neurobiology
Texto completo: Texto completo (Ver PDF)