[Spanish adaptation of the Seasonal Pattern Assessment Questionnaire (SPAQ) in the adult and children-adolescent versions].

Introduction: In 1984, Rosenthal et al. described the seasonal affective disorder as a cyclic pattern of depressive episodes appearing in autumn and winter, showing atypical symptoms as hypersomnia, overeating, and carbohydrate craving. They also introduced the self-applied Seasonal Pattern Assessment Questionnaire, which includes a seasonality index.