Search results for " aggression"
showing 10 items of 49 documents
Genetic association study of childhood aggression across raters, instruments, and age
2021
AbstractChildhood aggressive behavior (AGG) has a substantial heritability of around 50%. Here we present a genome-wide association meta-analysis (GWAMA) of childhood AGG, in which all phenotype measures across childhood ages from multiple assessors were included. We analyzed phenotype assessments for a total of 328 935 observations from 87 485 children aged between 1.5 and 18 years, while accounting for sample overlap. We also meta-analyzed within subsets of the data, i.e., within rater, instrument and age. SNP-heritability for the overall meta-analysis (AGGoverall) was 3.31% (SE = 0.0038). We found no genome-wide significant SNPs for AGGoverall. The gene-based analysis returned three sign…
Intervindre en prosocialitat a l’àmbit educatiu: una revisió sistemàtica
2018
El present treball se centra a realitzar una revisió sistemàtica de la literatura, referent a la intervenció prosocial en estudiants a etapes preuniversitàries. El principal objectiu és analitzar les propostes d’intervenció prosocial en Educació Infantil, Primària i Secundària, i observar els efectes que tenen sobre la conducta. La revisió s’ha fet mitjançant 19 articles obtinguts de la base de dades Web of Science, Scopus (wos), Dialnet, ResearchGate i PubMed. Els resultats mostren la rellevància d’intervindre a l’àmbit educatiu preuniversitari a través de programes que fomenten el desenvolupament socioemocional que conseqüentment provoquen un augment de les conductes prosocial i la compet…
EXPRESSIONS OF DISCOMFORT IN ADOLESCENTS. CLINICAL REFLECTIONS RESULTING FROM AN EXPLORATORY STUDY OF A GROUP OF STUDENTS
2006
Obiettivo. Considerati la diffusione e l’incremento dei comportamenti aggressivi e violenti, specie quelli che trovano come radicale comune la mancanza di un’effettiva motivazione e l’efferatezza, la nostra ricerca si è posta l’obiettivo di rintracciare gli indicatori e i segni predittivi di tali comportamenti. La letteratura, inoltre, dimostra che gli indicatori e i segni predittivi di maggiore affidabilità sono quelli legati alle invarianti strutturali (per esempio le strategie difensive, la capacità di controllo degli impulsi). Metodi. È stato realizzato, con un piano di ricerca trasversale, uno studio clinico di confronto reclutando un gruppo di adolescenti (26 soggetti di sesso maschil…
Youth Athletes' Perception of Existence and Prevalence of Aggression and Interpersonal Violence and Their Forms in Serbia.
2022
Aggression and interpersonal violence (IV) against children and youth are issues in contemporary society. The current study reports on the youth athletes’ perception of the aggression and IV prevalence and its manifestation forms in a Serbian context. The sample included athletes (N = 2091) between the age of 11 and 18 years. Data were collected through an ad-hoc questionnaire created by the authors. Respondents’ answers to introductory questions about the frequency of IV indicated its absence (78.1%). However, the answers to the questions about specific forms of violent peer behavior indicated forms as well as the time and place where IV most often occurs. They underlined that …
Factors psicosocials rellevants en la violència de preadolescents i adolescents escolaritzats
2010
A pesar de la considerable evidència acumulada sobre els efectes de la violència en els mitjans, encara hi ha controvèrsia sobre el tema. La comunitat científica debat la influència de la TV i els videojocs en el comportament dels subjectes (vid. Kids, TV viewing, andaggressivebehavior, Science (Letters) 297, 49-50, 2002). Aquells que s'oposen al fet que la TV i els videojocs tenen influència sobre el comportament agressiu, defensen que la causalitat no es pot establir tan fàcilment, ja que als individus violents els agradarà més veure actes agressius en TV i que estiguen presents en els videojocs. En l'actual estudi realitzat amb escolars preadolescents i adolescents 'amb una grandària de …
The presence of a woman increases testosterone in aggressive dominant men
2008
In line with the challenge hypothesis, this study investigated the effects of the presence of a woman on the testosterone (T) levels of young men. An informal contact with a woman of approximately 5 min resulted in an increase in salivary T among men. These effects occurred particularly in men with an aggressive dominant personality. In addition, higher salivary T levels were related to a more aggressively dominant personality, being sexual inactive for a month or more, and not being involved in a committed, romantic relationship. The most important findings of this study are that the short presence of a woman induces specific hormonal reactions in men, and that these effects are stronger f…
The Russian annexation of the Crimea: questions relating to the use of force
2014
International audience
Aggression and Peer Violence Manifestation in Youth Sport – The Case Study
2020
This study was designed to detect aggression and peer violence manifestation forms in youth sports in Subotica. The sample consisted of athletes (N=255), aged between 11 and 18 years. Besides presenting descriptive statistics, the Mann-Whitney U test was used to assess the differences in variables (gender, school age, training years, sport type) among the forms of violence that can occur and among the ones that do occur. The results indicate the presence of aggression and violence. The most frequent place is in the dressing room, and the more common period is after or during training and while traveling to competitions, sports camps, etc. The study indicates significant differences in sexua…
Sexism in adolescence: parenting styles, division of housework, prosocial behaviour and aggressive behaviour /Sexismo en la adolescencia: estilos de …
2017
AbstractThe aim of this study was to identify which factors were the best predictors of sexist attitudes. To achieve this aim, two groups of variables were analysed. The first group consisted of variables relating to parenting styles and the division of housework. The second group consisted of personal factors related to prosocial behaviour and physical and verbal aggression. The sample was made up of 732 adolescents aged 12–14 from Valencia (Spain). The analysis was conducted separately for boys and girls. Correlation analyses and multiple linear regression analyses were conducted on each subsample. The results show that the division of housework and parenting styles were related to sexist…
Sex pheromones are not always attractive: changes induced by learning and illness in mice
2014
A male-specific major urinary protein named darcin is attractive to female mice, Mus musculus, stimulates a learned attraction to volatile components of a male's urinary odour and induces spatial learning. In this article we show that darcin also induces learned attraction for a previously neutral olfactory stimulus (the odorant isoamyl acetate), acquired by repeated presentation of both stimuli together. We hypothesize that this is a case of olfactory–vomeronasal associative learning, in which darcin acts as the unconditioned reinforcer. However, the presence of darcin is not always attractive to adult female mice. Urine from males parasitized by the nematode Aspiculuris tetraptera has no …