Introduction: Daytime sleepiness has been associated with several factors such as sleep quality, sleep hours and regularity. However, daytime sleepiness studies seldomly consider activity as a relevant variable (comparing working days vs. weekends). Aim: To study the relationship between sleeping hours, social jetlag and daytime sleepiness in undergraduate students. Methods: Participants responded to an online questionnaire, in order to gather sleep hours and daytime sleepiness (using the Epworth Scale). Results: Significant differences were observed in sleep hours during working days and weekends (t(225) = 13.660; p < .001; d = 1.05) as well as negative correlations between daytime sleepiness and sleep hours. Discussion: Further studies are needed with a more thorough variable control, considering study areas as well as chronotypes.

Introduction: Daytime sleepiness has been associated with several factors such as sleep quality, sleep hours and regularity. However, daytime sleepiness studies seldomly consider activity as a relevant variable (comparing working days vs. weekends). Aim: To study the relationship between sleeping hours, social jetlag and daytime sleepiness in undergraduate students. Methods: Participants responded to an online questionnaire, in order to gather sleep hours and daytime sleepiness (using the Epworth Scale). Results: Significant differences were observed in sleep hours during working days and weekends (t(225) = 13.660; p < .001; d = 1.05) as well as negative correlations between daytime sleepiness and sleep hours. Discussion: Further studies are needed with a more thorough variable control, considering study areas as well as chronotypes.

Las quejas de declive cognoscitivo se han vinculado con el deterioro cognoscitivo leve y/o con procesos neurodegenerativos tempranos. Existen cuestionarios para medir estas quejas, pero no hay evidencia de su confiabilidad y validez en población mexicana. El objetivo de esta investigación fue adaptar el Cuestionario de Fallos Cognitivos, estudiar su estructura y propiedades psicométricas en dicha población. Es un estudio instrumental que incluyó la traducción, jueceo, piloteo y aplicación del instrumento en dos muestras de participantes mexicanos. Se estudió su estructura interna, confiabilidad, y validez. Participaron 394 jóvenes universitarios y 124 adultos mayores. En jóvenes, el instrumento es unidimensional (alfa de .92. y coeficiente Omega de .93). Para adultos mayores, el análisis factorial exploratorio arroja 2 posibles factores, el primero (distraibilidad) con un alfa...

The “Reading the Mind in the Eyes test” (RMET), also known as “The Eyes test”, is one of the most widely used tests to study Theory of Mind (ToM) and has been translated to several languages around the world. The aim of this study was to present an online version of the RMET designed for a Mexican population (Barrera-Valdivia et al., 2019) and to explore sex and age-related effects on the performance of the test. 1489 adults (1054 female, 71%) age 18 to 87 (M=30, SD=15) participated in the study. Participants were instructed to choose the word that best described what the person in each picture was feeling among four options. Stimuli consisted of full color images of 45 people’s eyes who expressed a variety of mental states. Results showed that 30 stimuli met the selection criteria: ≥50% selected on target and ≤25% on any of the foils. Average accuracy in response was 76% (...

Las quejas de declive cognoscitivo se han vinculado con el deterioro cognoscitivo leve y/o con procesos neurodegenerativos tempranos. Existen cuestionarios para medir estas quejas, pero no hay evidencia de su confiabilidad y validez en población mexicana. El objetivo de esta investigación fue adaptar el Cuestionario de Fallos Cognitivos, estudiar su estructura y propiedades psicométricas en dicha población. Es un estudio instrumental que incluyó la traducción, jueceo, piloteo y aplicación del instrumento en dos muestras de participantes mexicanos. Se estudió su estructura interna, confiabilidad, y validez. Participaron 394 jóvenes universitarios y 124 adultos mayores. En jóvenes, el instrumento es unidimensional (alfa de .92. y coeficiente Omega de .93). Para adultos mayores, el análisis factorial exploratorio arroja 2 posibles factores, el primero (distraibilidad) con un alfa...