Neurodevelopmental Differences, Pedohebephilia, and Sexual Offending: Findings from Two Online Surveys

The neurodevelopmental theory of pedohebephilia states that sexual interests in children arise from early neurodevelopmental perturbations, as, for example, evidenced by increased non-right-handedness, more childhood head injuries, and reduced intelligence and height. As corroborating evidence largely rests on samples of convicted men, we conducted online surveys among German-speaking (Study 1, N = 199) and English-speaking men (Study 2, N = 632), specifically targeting community members with pedohebephilic or teleiophilic interests. Although we detected theoretically meaningful sexual interest patterns in an embedded viewing time task, we could not detect expected neurodevelopmental differences between teleiophilic and pedohebephilic men in either of the two studies. Strikingly, pedohebephilic men who reported convictions for sexual offenses emerged as shorter and less intelligent than pedohebephilic men without convictions in Study 2. While elucidating possible third variable confounds, results have to be interpreted cautiously because of the methodological problems inherent to non-matched case control designs.

Assessment of Healthy Lifestyle Behaviors among First-Year Medical, Dentistry and Health Sciences Students in Turkey

This cross-sectional study, in which the first-year findings of a prospective followup study were presented, was conducted with 356 students enrolled in the firstyear of three faculties at a state university in Istanbul between November 1st and December 31st, 2019. With this study, it was aimed to evaluate the changes in certain healthy lifestyle behaviors, risky behaviors and depression levels of students enrolled at the different faculties of a public university in Istanbul during their university life. The data were obtained through a questionnaire of 65 questions, and the Beck Depression Inventory, which consisted of 21 questions. They were administered under supervision by providing preliminary information to the students. The mean body mass index, mean systolic blood pressure and mean diastolic blood pressure values of the students were 23.23 + 4.1, 108.97 + 15.21 and 66.98 + 10.08, respectively. The mean daily sleep time was 6.77 + 1.21 hours, the mean TV viewing time was 0.77 + 1.13 hours, and the mean time they spent with a smartphone, tablet or computer was 3.67 + 2.50 hours. Among the students, 37.07% were smokers, 26.12% consumed alcohol, and 4.77% used addictive substances. Of the students, 31.46% considered themselves at risk for depression. At the universities, there is a need for the implementation of health promotion programs focusing on promoting physical activity and healthy nutrition and reducing risky behaviors. In addition, these programs should be strengthened with the trainings on changing behaviors.

Impact of a voluntary industry code for advertising food to children and young people: an analysis of New Zealand television data

Objective: To evaluate the impact of the 2017 update to the voluntary Advertising Standards Authority (ASA) Code for Advertising Food on children and young people’s exposure to unhealthy food advertisements on New Zealand television. Design: Audience ratings data were analysed for New Zealand children and young people’s television viewing for eight random days prior to (June to August 2015) and following (October to December 2018) the code update, from 6.00am-midnight (864 hours). Food advertisements were coded using three nutrient profiling models. The number of children and young people watching television each year were compared. Setting: Three free-to-air New Zealand television channels. Participants: New Zealand children aged 5-18 years. Results: Television viewer numbers decreased over the three years (P<0.0001). The mean rate of unhealthy food advertising on weekdays was 10.4 advertisements/hour (2015) and 9.5 advertisements/hour (2018). Corresponding rates for weekend days were 8.1 and 7.3 advertisements/hour, respectively. The percentage of food advertisements which were for unhealthy foods remained high (63.7% on weekdays and 65.9% on weekends) in 2018. The ASA definition of children’s ‘peak viewing time’ (when 25% of the audience are children) did not correspond to any broadcast times across weekdays and weekend days. Conclusions: Between 2015 and 2018, children and young people’s television exposure to unhealthy food advertising decreased. However, almost two-thirds of all food advertisements were still unhealthy, and the updated ASA code excluded the times when the greatest number of children were watching television. Consequently, government regulation and regular monitoring should reflect the evolving food marketing environment.

Screen Time and Bone Status in Children and Adolescents: A Systematic Review

Introduction: Technological advances over the last 2 decades have led to an increase in the time spent by children and youth engaged in screen-based activities, and growing recognition of deleterious effects on health. In this systematic review of cohort and cross-sectional studies, we assess current data on the relationship between screen time and bone status in children and teenagers.Methods: We searched PUBMED and SCOPUS databases for studies of children and adolescents that assessed screen time and bone status, determined by measuring bone mineral content or density, bone stiffness index, bone speed of sound, bone broadband ultrasound attenuation, or frame index. Searches were limited to studies published between 1900 and 2020, and performed in accordance with Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines. The studies included were evaluated using the Newcastle-Ottawa quality assessment scale.Results: Ten cohort and cross-sectional studies including pediatric population were selected. The combined study population was 20,420 children/adolescents, of whom 18,444 participated in cross-sectional studies. Four studies assessed the effects of total screen time, seven the consequences of TV viewing time, and six the effects of recreational computer use on bone health. Our findings indicate an inverse association between total and weekly screen time and bone health in children and adolescents. In 57% of the studies included also a negative correlation between television viewing time and bone status was observed, while recreational computer time did not have a significant impact on bone health. According to the only four studies that included dietetic factors, no relevant differences were found between calcium intake and screen time or bone broadband ultrasound attenuation and bone speed of sound.Conclusions: Review of the literature of the past three decades provides strong support for comprehensive education of screen time on bone status. The findings of this systematic review support a negative association between screen time and bone status in children and adolescents, with a different impact when considering the different technological devices. As peak bone mass in adolescents is the strongest predictor of osteoporosis risk, strategies aimed at improving bone health should incorporate conscious use of digital technology.

Oxytocin enhances neural approach towards social and non-social stimuli of high personal relevance

Oxytocin (OT) plays a pivotal role in a variety of complex social behaviors by modulating approach-avoidance motivational tendencies, but recently, its social specificity has been challenged. Here, a randomized, double-blind, placebo-controlled study was conducted with forty young adult men, investigating the effect of a single-dose of OT (24 IU) on behavioral and neural approach-avoidance. Frontal alpha asymmetry, indexing neurophysiological approach-avoidance, was obtained from electroencephalographic recordings while participants were presented with a series of pictures, individually rated in terms of personal relevance (i.e., high versus low positive/negative emotional evocativeness) and categorized as social or non-social. Additionally, participants could prolong (approach) or shorten (avoid) the viewing-time of each picture, providing a measure of behavioral approach-avoidance. Intranasal OT enhanced both behavioral and neural approach (increased viewing-time), particularly towards negatively valenced pictures of both social and non-social nature, thus challenging the notion that OT’s effects are specific to social stimuli. Neurally, OT specifically amplified approach-related motivational salience of stimuli that were self-rated to have high personal relevance, but irrespective of their social nature or rated affective valence (positive/negative). Together, these findings provide support to the General Approach-Avoidance Hypothesis of OT, suggesting a role of OT in amplifying the motivational salience of environmental stimuli with high (personal) relevance, but irrespective of their social/non-social nature.Clinical Trial Number: The study design was registered at ClinicalTrials.gov (NCT04443647; 23/06/2020; https://clinicaltrials.gov/ct2/show/NCT04443647).

Correlates of screen-based behaviors among adults from the 2019 Brazilian National Health Survey

We aimed to investigate correlates of TV viewing and other types of screen-based behaviors in a nationally representative sample of Brazilian adults. In the 2019 Brazilian National Health Survey (including 88,509 adults), TV viewing time and other types of screen behaviors (computer, tablet, and cellphone use) were self-reported and different geographical, sociodemographic, behavioral, and health status factors were investigated as potential correlates. Multinomial logistic regression models were used for the main analyses. Living in capital cities, urban areas, being unemployed, high consumption of soft drinks, obesity, and elevated depressive symptoms were each associated with more TV viewing and more time using other types of screens. There were differential associations between TV viewing and the use of other types of screen across age and socioeconomic variables. For instance, younger adults have a more diverse portfolio of screen time than older adults. To conclude, levels of screen-based behaviors vary by geographical, sociodemographic, behavioral, and health status characteristics. Interventions should focus on high-risk population groups and may benefit from targeting specific sedentary behaviors of interest.

Media Trust and Persuasion

This study examines the effect of media use on media trust and persuasion using a large-scale randomized field experiment, which was conducted in collaboration with the nation's most trusted media outlet. By randomly increasing the capacity for viewing its TV programs, we found that this treatment increased support for government policies by increasing program viewing time, which is, as we demonstrate, biased in favor of the government. Furthermore, we determined that the effect is driven mostly by those who trusted the outlet more than other broadcasters and that their levels of trust in the outlet were even *increased* by our treatment, which we call *endogenous persuasion*. By contrast, we did not discover heterogeneous effects with respect to political preferences. To better understand the mechanism underlying these findings, we developed a model of endogenous persuasion.

Neurodevelopmental Differences, Pedohebephilia, and Sexual Offending: Findings from Two Online Surveys

The neurodevelopmental theory of pedohebephilia states that sexual interests in children arise from early neurodevelopmental perturbations, as, for example, evidenced by increased non-right-handedness, more childhood head injuries, and reduced intelligence and height. As corroborating evidence largely rests on samples of convicted men, we conducted online surveys among German-speaking (Study 1, N = 199) and English-speaking men (Study 2, N = 632), specifically targeting community members with pedohebephilic or teleiophilic interests. Although we detected theoretically meaningful sexual interest patterns in an embedded viewing time task, we could not detect expected neurodevelopmental differences between teleiophilic and pedohebephilic men in any of the two studies. Strikingly, pedohebephilic men who reported convictions for sexual offences emerged as smaller and less intelligent than pedohebephilic men without convictions in Study 2. While elucidating possible third variable confounds, results have to be interpreted cautiously because of the methodological problems inherent to non-matched case control designs.

Violence Tendency among Secondary School Students: The Effect of Self-Esteem and Empathic Tendency

Aims: Personal, familial and environmental factors can be effective in tendency to violence. This study was conducted to determine the effects of self-esteem of adolescents and empathic tendency on levels of violence tendency to secondary school students, regardless of socio-demographic characteristics. Study Design: This study is a retrospective record study. Place and Duration of Study: Secondary schools in the city center of Yozgat in the 2017-2018 academic years. Methodology: In the study, the data in the records of secondary school students (n=987, boys 503, girls 484; grade range 5-8) which were collected using the scales were used. The data were analysed by correlation, independent t-test, Anova and linear regression (LR). Results: The mean violence tendency, self-esteem, and empathic tendency scales’ scores of the students were 33.4, 69.0 and 2.4, respectively. According to the multivariate analysis, low empathic tendency, family perception of low performance, disliking school, increased TV viewing time, low self-esteem, increased age, being exposed to violence at home and not preparing for high school entrance exam were found to be statistically significant as the factors affecting the tendency to violence in order of priorities. Conclusion: Early adolescents have a moderate level of tendency to violence. Moreover, low self-esteem, low empathic tendency, individual characteristics and parental attitudes are associated with tendency to violence.

The Relation Between Television Viewing Time and Reading Achievement in Elementary School Children: A Test of Substitution and Inhibition Hypotheses

Research has focused on the relations between television (TV) viewing time and children’s reading achievement. Two hypotheses have been proposed to explain this relation. The substitution hypothesis proposes that TV viewing distracts students from activities that are important for their learning. The inhibition hypothesis proposes that watching television inhibits important affective/cognitive skills. In this study, we test both hypotheses by estimating the relation between TV viewing time and reading achievement. We use the frequency of students’ leisure reading and the frequency of interactions between students and their parents as potential mediators to test the substitution hypothesis, whereas for the inhibition one, we use students’ intrinsic motivation to read and their level of inattention. Data come from the Québec Longitudinal Study of Child Development (QLSCD). Designed by the Institut de la statistique du Québec, QLSCD covers a wide range of themes. The QLSCD is representative of children in Québec and contains 2223 participants who were followed from 0 to 21 years old. The four structural models tested are built as follows: the TV viewing time at 6 years old predicts the four mediating variables at 8 years old, which in turn predicts reading achievement at 10 years old. In addition, we have tested models’ gender invariance. Results indicate that TV viewing time is not directly or indirectly associated with reading achievement. Specifically, it is not associated with the mediating variables of child-parent interactions, intrinsic motivation, and inattention. However, the frequency of leisure reading is negatively associated with the time spent watching TV. This association is very small (−0.07) and has no indirect effect on reading achievement. Finally, results do not vary according to the gender of the participants. Our results are in line with those of previous studies in the field and cast some doubts on the potential negative effects of TV viewing time on reading achievement.