Person: Díaz Morales, Juan Francisco
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First Name
Juan Francisco
Last Name
Díaz Morales
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Psicología
Department
Psicología Social, Trabajo y Diferencial
Area
Personalidad, Evaluación y Tratamiento Psicológico
Identifiers
6 results
Search Results
Now showing 1 - 6 of 6
Item Morningness-eveningness and sleep habits among adolescents: age and gender differences(Psicothema, 2012) Collado Mateo, María José; Díaz Morales, Juan Francisco; Escribano Barreno, Cristina; Delgado Prieto, Pedro; Randler, ChristophPrevious research has indicated the need to use large samples in different cultural contexts in order to clarify age and gender differences on morningness-eveningness and sleep habits. The goal of our research was to study the relationship between morningness-eveningness and sleep habits in a large sample of 2,649 adolescents between 12 and 16 years. The Morningness- Eveningness Scale for Children and an adaptation of the School Sleep Habits Survey measures were used. Results indicated a greater tendency toward eveningness with age and higher eveningness in 13- and 14-year-old girls. Older adolescents claimed later rising time on weekends, later bedtime and shorter sleep length, and greater social jetlag, weekend rise time delay, and weekend bedtime delay. Girls reported earlier rising time on weekdays, later rising time on weekends, longer sleep length on weekends, and greater social jetlag and weekend rising time delay. Lastly, evening oriented adolescents claimed later rising time and bedtime, shorter sleep length on weekdays but longer sleep duration on weekends, and greater social jetlag, weekend rising time delay, and weekend bedtime delay.Item Consequences of adolescent's evening preference on psychological functioning: a review(Anales de Psicología, 2014) Díaz Morales, Juan Francisco; Escribano Barreno, CristinaThis review provides an overview of the role of circadian preference in psychological functioning of adolescents taking into account their shift to eveningness during this stage of life. After a brief explanation about morningness/eveningness and other terms related, an overview of the changes that occur on three of the most important areas in the adolescent‟s life is presented: school performance, personality styles, and health. Consequences of evening preference on school achievement are considered from the analysis of the relevance of sleep debt and time-of-day in cognition and mood aspects. In general, students who are able to choose activity times coinciding with their preferred times may have a greater opportunity to optimize their performance. The personality styles and health of morning and evening types are also important factors related to school and family adaptation. At last, some recommendations and conclusions in order to promote a healthy psychological functioning are described.Item Matutinidad-vespertinidad y ansiedad rasgo en adolescentes(Anales de Psicología, 2013) Collado Mateo, María José; Díaz Morales, Juan Francisco; Escribano Barreno, Cristina; Delgado Prieto, PedroEl objetivo de este trabajo fue estudiar la relación entre la matutinidad-vespertinidad y la ansiedad rasgo en adolescentes. La muestra estaba formada por 638 adolescentes de 12 a 14 años. Se midió la matutinidadvespertinidad mediante la Escala de Matutinidad-Vespertinidad para Niños, MESC (Carskadon, Vieira y Acebo, 1993) y la ansiedad rasgo mediante el Inventario de Ansiedad Estado-Rasgo para niños, STAIC (Spielberger, Edwards, Lushene, Montuori y Platzek, 1973; Spielberger, Edwards y Lushene, 1990). Los resultados indicaron que las chicas eran más vespertinas, que la vespertinidad aumentaba con la edad y una relación negativa entre matutinidad y ansiedad rasgo. Aquellos adolescentes más vespertinos obtuvieron una mayor ansiedad rasgo, posiblemente debido a un mayor desajusteentre los ritmos biológicos y sociales (horarios escolares matutinosItem Morningness-eveningness and anxiety among adults: a matter of sex/gender?(Personality and Individual Differences, 2008) Díaz Morales, Juan Francisco; Sánchez López, María PilarPeople’s health and well-being may be determined by the interaction of endogenous and external rhythms. Late chronotypes should become anxious because of the demand to perform tasks in a society oriented preferentially to morning work. In this study, we examined the relationship between morningness and anxiety in 559 adults (age range 40–63 years) from rural environments who completed morningness–eveningness and anxiety measures. Results indicated a negative correlation between morningness and anxiety in women, but not in men, suggesting the relevance of gender-related variables. When demographic characteristics were considered, women’s anxiety was predicted by low educational level and eveningness, whereas men’s anxiety was predicted by being single, having children, being unemployed, and eveningness. Some hypotheses of gender-related social roles are postulated as a possible explanation of the results.Item Social jetlag, academic achievement and cognitive performance: Understanding gender/sex differences(Chronobiology international, 2015) Díaz Morales, Juan Francisco; Escribano Barreno, CristinaAdolescents in high school suffer from circadian misalignment, undersleeping on weekdays and oversleeping on weekends. Since high schools usually impose early schedules, adolescents suffer from permanent social jetlag and thus are a suitable population to study the effects of social jetlag on both academic and cognitive performance. In this study, 796 adolescents aged 12 to 16 reported information about their sleep habits, morningness-eveningness, cognitive abilities and grade point average. Time in bed on both weekdays and weekends were not related to cognitive abilities, and only time in bed on weekdays was related to academic achievement. Social jetlag was negatively related to academic achievement, cognitive abilities (except for vocabulary and verbal fluency abilities) and general cognitive ability (g), whereas morningness-eveningness was slightly positively related to academic achievement and marginally negatively related to inductive reasoning. Results separated by sex/gender indicated that social jetlag may be more detrimental to girls’ performance, as it was negatively related to a greater number of cognitive abilities and grade point average.Item Perspectiva temporal futura y ciclo vital(Anales de psicología, 2006) Díaz Morales, Juan FranciscoThis study described the future temporal perspective (FTP) changes across age. Future time perspective has been evaluated according to Nurmi’s model (1989), which was composed by three components: motivation, planning, and prospective evaluation. The participants were four groups of different ages: 130 adolescents (15-18 years old), 150 undergraduates (19-28 years old), 100 adults middle age (30-59 years old), and 74 elder people (60-88 years old). It has been used the Nurmi’s Goals and Fears Questionnaire, which evaluated each three component through temporal extension, knowledge, realization, planning, control, probability of fu-ture realization, and future affect dimensions. It has been analysed dimensions for goals and fears. The results indicated a U inverted shape in tem-poral distance, progressive increase of knowledge, realization and planning, and decrease of control. Also, the results indicated gender differences according to content of goals and fears.