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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 Psicología del Principado de Asturias).
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Psicothema, 2011. Vol. Vol. 23 (nº 4). 580-586




Evaluación de la reactividad emocional ante imágenes de comida en bulimia nerviosa

Mª Ángeles Gómez Martínez, José Ramón Yela Bernabé, Alfonso Salgado Ruiz y María Cortés Rodríguez

Universidad Pontificia de Salamanca

En este estudio evaluamos la influencia de la intensidad del craving rasgo, efecto de estado de ánimo y restricción de comida sobre la reacción ante imágenes de alimentos. Se evalúa la modulación emocional del reflejo defensivo de sobresalto motor (RMS) en 26 mujeres con riesgo de padecer bulimia nerviosa; fueron asignadas a dos grupos en base a la intensidad del craving rasgo. En cada uno de estos dos grupos se generó estado de ánimo positivo o negativo y los sujetos ingirieron o no alimentos antes del comienzo de la prueba. Se registra el electromiograma del músculo orbicular del ojo tras un estímulo auditivo, SCR, medidas de autoinforme para evaluar el deseo de comer (craving estado y rasgo) y emociones ante las imágenes de alimentos (SAM). Los resultados indican que el estado de ánimo negativo hace que las imágenes de comida sean valoradas como más desagradables, generadoras de emociones más intensas y de pérdida de control; además provocan mayores SCRs. Estos dos últimos efectos se produjeron en los grupos no deprivados. Las personas con bajos niveles en el FCQ-T disminuyeron su RMS ante imágenes de comida como consecuencia de experimentar emociones positivas; cuando las emociones eran negativas, su RMS se incrementaba.

Assessment of emotional reactivity to food images in bulimia nervosa. The aim of the study was to assess the influence on reactivity to food images of the following variables: craving-trait, positive or negative mood state, and food restriction. Emotional modulation of the defense startle reflex (RMS) was assessed in 26 women at risk of suffering from bulimia nervosa; they were assigned one of to two groups: high craving-trait and low craving-trait. Before the test, positive or negative mood and restriction vs. non-restriction states were induced in each of the groups. Skin conductance response (SCR) and electromyogram activity from the orbiculari oculi region were recorded after the auditory stimuli; questionnaires such as Food Craving Trait Questionnaire (FCQ-T) and the Self-assessment Manikin (SAM) were used. Results showed that negative affect produced a negative valence of food images, more arousal, and more loss of control, as well as higher SCRs. Subjects with low FCQ-T levels reduced their RMS to food images as a consequence of experiencing positive emotions; when emotions were negative, their RMS increased.

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Impact factor 2022:  JCR WOS 2022:  FI = 3.6 (Q2);  JCI = 1.21 (Q1) / SCOPUS 2022:  SJR = 1.097;  CiteScore = 6.4 (Q1)