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Psicothema was founded in Asturias (northern Spain) in 1989, and is published jointly by the Psychology Faculty of the University of Oviedo and the Psychological Association of the Principality of Asturias (Colegio Oficial de Psicólogos del Principado de Asturias).
We currently publish four issues per year, which accounts for some 100 articles annually. We admit work from both the basic and applied research fields, and from all areas of Psychology, all manuscripts being anonymously reviewed prior to publication.

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Psicothema, 2007. Vol. Vol. 19 (nº 1). 30-36




Mecanismos psicofisiológicos implicados en la regulación afectiva y la restricción alimentaria de mujeres con riesgo de padecer bulimia nerviosa

Sonia Rodríguez, José Luis Mata*, Silvia Moreno**, Mª Carmen Fernández* y Jaime Vila*

Universidad de Jaén, * Universidad de Granada y ** Centro de Psicología Viania (Granada)

El objetivo del estudio fue conocer el efecto de visualizar imágenes de comida bajo diferentes estados de ánimo y diferentes condiciones de restricción alimentaria en la modulación emocional de dos reflejos defensivos (sobresalto motor y defensa cardiaca). 72 mujeres con riesgo de padecer bulimia nerviosa fueron asignadas a dos grupos: 1) un grupo al que se inducía un estado de ánimo positivo, neutro o negativo; y 2) un grupo privado de comida durante 6 horas o no-privado. Se registraron la tasa cardiaca segundo-a-segundo y el electromiograma del músculo orbicular del ojo tras un estímulo auditivo. Los resultados mostraron que las mujeres no privadas, bajo un estado de ánimo negativo, potenciaban la respuesta cardiaca de defensa (RCD) y el reflejo motor de sobresalto (RMS) ante las imágenes de comida. Se discuten los resultados en el contexto de las teorías de alimentación emocional y del modelo de priming motivacional de Peter Lang.

Psychophysiological mechanisms involved in the affective regulation and food restriction of women at risk of suffering from bulimia nervosa. The aim of the study was to explore the effect of visualizing food images under different mood states and food restriction conditions on the emotional modulation of two defense reflexes (startle reflex and cardiac defense). 72 women at risk of suffering from bulimia nervosa were assigned to two groups: 1) a group under induced positive, neutral, or negative mood state and, 2) a 6-hour-food-deprived group or a non-deprived group. Second-by-second heart rate and electromyogram activity from the orbiculari oculi region were recorded after the auditory stimulus. The results showed that, while viewing food images, non-deprived women under negative mood state potentiated the cardiac defense response and the startle motor reflex. Results are discussed in the context of emotional eating theories and Peter Langs motivational priming model.

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