Los pacientes de trastorno de ansiedad procesan las emociones de manera distinta

Investigadores afirman que escáneres por IRM muestran actividad cerebral anormal
JUEVES, 18 de febrero (HealthDay News/DrTango) -- Entre los que sufren la enfermedad mental común conocida como trastorno de ansiedad generalizada, un estudio reciente ha encontrado que el cerebro procesa las emociones en formas anormales.

Los autores del estudio afirman que la investigación podría ofrecer nuevos conocimientos sobre mejores tratamientos para las personas que sufren de ansiedad debilitante.

"Los pacientes experimentan ansiedad y preocupación, y responden de forma excesiva a los estímulos emocionales negativos, pero en realidad el motivo nunca ha estado claro", aseguró en un comunicado de prensa el Dr. Amit Etkin, profesor asistente encargado de psiquiatría y ciencias conductuales de la Universidad de Stanford y 'primer autor del estudio.

En el estudio, los investigadores administraron escáneres por IRM a 17 personas que sufrían trastorno de ansiedad generalizada, y a 24 personas sanas. Los investigadores deseaban comprender qué sucedía en los cerebros de los participantes a medida que sentían varias emociones.

Los autores del estudio encontraron que los cerebros de los participantes reaccionaban de forma distinta en algunas situaciones. Los hallazgos sugieren que la corteza prefrontal es anormal en las personas que tienen un trastorno de ansiedad generalizada y los investigadores piensan que ese conocimiento podría llevar a un mejor diagnóstico y tratamiento.

El Dr. Alan Schatzberg, autor principal del estudio, y presidente de psiquiatría y ciencias conductuales de la Universidad de Stanford, dijo en el comunicado de prensa que los hallazgos, publicados en la edición en línea de febrero de la revista American Journal of Psychiatry, podrían llevar a una mayor comprensión de la biología de la psicopatología, y cómo la gente responde a la psicoterapia.

http://www.nlm.nih.gov/medlineplus/spanish/news/fullstory_95519.html
Artículo por HealthDay, traducido por Hispanicare

FUENTE: Stanford University, news release, Feb. 10, 2010

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