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Full-Text Articles in Medicine and Health Sciences
Daily Rhythmicity Of Behavior Of Nine Species Of South American Feral Felids In Captivity, Sciabarrasi Bagilet Antonio, Raúl Delmar Cerutti, María Cristina Scaglione, Giuseppe Piccione, Roberto Refinetti
Daily Rhythmicity Of Behavior Of Nine Species Of South American Feral Felids In Captivity, Sciabarrasi Bagilet Antonio, Raúl Delmar Cerutti, María Cristina Scaglione, Giuseppe Piccione, Roberto Refinetti
Psychological Sciences Faculty Publications and Presentations
The authors analyzed the daily activity rhythms of the domestic cat and of eight of the ten feral felid species that are indigenous to South America. All species showed daily rhythmicity of activity in captivity under a natural light-dark cycle. The robustness of the rhythmicity varied from species to species, but the grand mean of 34% was within the range of robustness previously described for mammalian species ranging in size from mice to cattle. There was not a sharp division between diurnal and nocturnal felids. Instead, what was found was a gradient of diurnality going from the predominantly nocturnal margay …
Parenting And Adolescents’ Psychological Adjustment: Longitudinal Moderation By Adolescents’ Genetic Sensitivity, April S. Masarik
Parenting And Adolescents’ Psychological Adjustment: Longitudinal Moderation By Adolescents’ Genetic Sensitivity, April S. Masarik
Psychological Sciences Faculty Publications and Presentations
We examined whether adolescents’ genetic sensitivity, measured by a polygenic index score, moderated the longitudinal associations between parenting and adolescents’ psychological adjustment. The sample included 323 mothers, fathers, and adolescents (177 female, 146 male; Time 1 [T1] average age = 12.61 years, SD = 0.54 years; Time 2 [T2] average age = 13.59 years, SD = 0.59 years). Parents’ warmth and hostility were rated by trained, independent observers using videotapes of family discussions. Adolescents reported their symptoms of anxiety, depressed mood, and hostility at T1 and T2. The results from autoregressive linear regression models showed that adolescents’ genetic sensitivity moderated …
Chronotype, Class Times, And Academic Achievement Of University Students, Tristan Enright, Roberto Refinetti
Chronotype, Class Times, And Academic Achievement Of University Students, Tristan Enright, Roberto Refinetti
Psychological Sciences Faculty Publications and Presentations
Numerous studies over the years have documented an effect of human chronotypes on physiological and psychological processes. Studies evaluating the impact of an individual’s chronotype on his/her academic achievement have indicated that morning chronotypes have an academic advantage over evening chronotypes. However, these studies did not account for the time of day in which the participants were being evaluated. The goal of the present study was to examine whether morning chronotypes do have an academic advantage over evening chronotypes when the time-of-day of classes and exams is taken into consideration. We obtained morningness-eveningness scores and course grades from 207 university …
Western Diet Affects The Murine Circadian System Possibly Through The Gastrointestinal Microbiota, Roberto Refinetti
Western Diet Affects The Murine Circadian System Possibly Through The Gastrointestinal Microbiota, Roberto Refinetti
Psychological Sciences Faculty Publications and Presentations
Consumption of a high-fat diet characteristic of human Western diet has been shown to affect the circadian system of laboratory rodents. The present study confirms an effect of Western diet on the circadian system of mice, specifically a shortening of the free-running circadian period of running-wheel activity, in addition to increased weight gain. Decimation of the gut microbiota by broad spectrum antibiotic treatment reversed the effect of Western-diet feeding on the free-running period, which suggests that the effect of Western-diet feeding on the circadian system is mediated by the gastrointestinal microbiota. This finding is particularly relevant in view of recent …
Stress And Child Development: A Review Of The Family Stress Model, April S. Masarik, Rand D. Conger
Stress And Child Development: A Review Of The Family Stress Model, April S. Masarik, Rand D. Conger
Psychological Sciences Faculty Publications and Presentations
In the present report, we provide an illustrative review of the Family Stress Model (FSM) framework1 to understand how family stress influences children across development in physical, social-emotional, and cognitive domains. We note that the FSM as a theory has evolved through inspection of: (a) new explanatory pathways (mediators); (b) factors that moderate FSM pathways; and (c) joint tests of competing models. Also important, most researchers cited in this review used longitudinal designs to test the proposed causal ordering of FSM pathways, which replicated among a diverse set of families varied in structure, ethnic background, and geographic location. We …