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Social Aggression

T Jean M Arseneau-Robar, Eliane Müller, Anouk L Taucher, Carel P van Schaik, Erik P Willems
Males in a number of group-living species fight in intergroup conflicts to defend access to food resources, a seemingly paradoxical behaviour, given that this resource does not usually limit male fitness directly. We investigated the mechanism(s) driving apparent male food defence in wild vervet monkeys (Chlorocebus aethiops pygerythrus) by testing the effect that female resource access, and female audience size and activity had on the response of focal males during simulated intergroup encounters. Males do not appear to defend food to increase the reproductive success of female group members because their response was not influenced by the presence of provisioning boxes that only females could access...
October 24, 2016: Scientific Reports
Bruce J Ellis, Albertine J Oldehinkel, Esther Nederhof
The adaptive calibration model (ACM) is a theory of developmental programing focusing on calibration of stress response systems and associated life history strategies to local environmental conditions. In this article, we tested some key predictions of the ACM in a longitudinal study of Dutch adolescent males (11-16 years old; N = 351). Measures of sympathetic, parasympathetic, and adrenocortical activation, reactivity to, and recovery from social-evaluative stress validated the four-pattern taxonomy of the ACM via latent profile analysis, though with some deviations from expected patterns...
October 24, 2016: Development and Psychopathology
Nirbhay N Singh, Giulio E Lancioni, Bryan T Karazsia, Jeffrey Chan, Alan S W Winton
Caregivers of individuals with intellectual and developmental disabilities (IDD) often end up having their medical and psychological well-being compromised due to the stressful nature of caregiving, especially when those in their care engage in aggressive behavior. In this study, we provided caregivers with mindfulness-based training to enable them to better manage their psychological well-being and, through this, to also enhance specific indices of quality of life of the individuals in their care. Thus, the aim of the present study was to evaluate in a randomized controlled trial (RCT) the comparative effectiveness of Mindfulness-Based Positive Behavior Support (MBPBS) and Training-as-Usual (TAU) for caregivers in a congregate care facility for individuals with severe and profound IDD...
2016: Frontiers in Psychology
Christine N El Ouardani
Based on 9 months of ethnographic fieldwork in a U.S. mental health clinic focused on the treatment of preschool-aged children who exhibited extremely disruptive behavior, this article examines the contradictions clinicians faced when trying to identify and attribute "intentionality" to very young children. Disruptive, aggressive behavior is one of the central symptoms involved in a wide-range of childhood psychopathology and the number one reason young children are referred to mental health clinics in the United States...
October 19, 2016: Culture, Medicine and Psychiatry
Shabnam Niroumand, Maliheh Dadgarmoghaddam, Babak Eghbali, Maryam Abrishami, Arash Gholoobi, Hamid Reza Bahrami Taghanaki, Mohammad Khajedaluee
BACKGROUND: Diabetes mellitus is assumed to be a strong risk factor for cardiovascular diseases (CVD) and is frequently associated with other CVD risk factors. OBJECTIVES: The aims of this study were to assess the prevalence of different patterns of dyslipidemia in individuals with diabetes compared with non-diabetic subjects and evaluate other accompanied CVD risk factors between the two groups. PATIENTS AND METHODS: This was an analytical cross-sectional study on 230 participants, aged 28 - 66 years old, who were referred to different urban health centers of Khorasan Razavi province (north-east of Iran)...
August 2016: Iranian Red Crescent Medical Journal
Ronald M Nelson, Svetlana V Temnykh, Jennifer L Johnson, Anastasiya V Kharlamova, Anastasiya V Vladimirova, Rimma G Gulevich, Darya V Shepeleva, Irina N Oskina, Gregory M Acland, Lars Rönnegård, Lyudmila N Trut, Örjan Carlborg, Anna V Kukekova
Individuals involved in a social interaction exhibit different behavioral traits that, in combination, form the individual's behavioral responses. Selectively bred strains of silver foxes (Vulpes vulpes) demonstrate markedly different behaviors in their response to humans. To identify the genetic basis of these behavioral differences we constructed a large F2 population including 537 individuals by cross-breeding tame and aggressive fox strains. 98 fox behavioral traits were recorded during social interaction with a human experimenter in a standard four-step test...
October 18, 2016: Behavior Genetics
Bret Pasch, Rachel Sanford, Steven M Phelps
Interspecific aggression between sibling species may enhance discrimination of competitors when recognition errors are costly, but proximate mechanisms mediating increased discriminative ability are unclear. We studied behavioral and neural mechanisms underlying responses to conspecific and heterospecific vocalizations in Alston's singing mouse (Scotinomys teguina), a species in which males sing to repel rivals. We performed playback experiments using males in allopatry and sympatry with a dominant heterospecific (Scotinomys xerampelinus) and examined song-evoked induction of egr-1 in the auditory system to examine how neural tuning modulates species-specific responses...
October 18, 2016: Animal Cognition
Charli S Davies, Kendra N Smyth, Lydia K Greene, Debbie A Walsh, Jessica Mitchell, Tim Clutton-Brock, Christine M Drea
In vertebrates, reproductive endocrine concentrations are strongly differentiated by sex, with androgen biases typifying males and estrogen biases typifying females. These sex differences can be reduced in female-dominant species; however, even the most masculinised of females have less testosterone (T) than do conspecific males. To test if aggressively dominant, female meerkats (Suricata suricatta) may be hormonally masculinised, we measured serum androstenedione (A4), T and estradiol (E2) in both sexes and social classes, during both 'baseline' and reproductive events...
October 18, 2016: Scientific Reports
David J Anderson
Goal-directed social behaviours such as mating and fighting are associated with scalable and persistent internal states of emotion, motivation, arousal or drive. How those internal states are encoded and coupled to behavioural decision making and action selection is not clear. Recent studies in Drosophila melanogaster and mice have identified circuit nodes that have causal roles in the control of innate social behaviours. Remarkably, in both species, these relatively small groups of neurons can influence both aggression and mating, and also play a part in the encoding of internal states that promote these social behaviours...
October 18, 2016: Nature Reviews. Neuroscience
Sophie E Walker, Aurélie Papilloud, Damien Huzard, Carmen Sandi
Aggressive behavior is not uniform, including proactive and reactive forms of aggression. Aberrant functioning of the hypothalamic-pituitary-adrenal (HPA) axis is frequently associated with abnormal aggression. Here, we review the rodent literature in order to assess whether developmental abnormalities in the HPA axis can be causally linked with the emergence of abnormal aggression. We examine studies that involve genetic models and life challenges (e.g., early life stress, drug exposure) that course with developmental alterations in the HPA axis...
October 14, 2016: Neuroscience and Biobehavioral Reviews
Irene Alvarez-Tomás, Joaquim Soler, Arturo Bados, Ana Martín-Blanco, Matilde Elices, Cristina Carmona, Joana Bauzà, Juan Carlos Pascual
The aim of this prospective study was to expand previously reported evidence on the 10-year clinical and functional course of borderline personality disorder (BPD) in a Spanish sample. Participants diagnosed with BPD were assessed at baseline and at 10-year follow-up to evaluate BPD symptomatology and other relevant clinical measures, suicidal behavior, dimensional personality traits, Axis I and II comorbidity, use of mental health resources, and psychosocial functioning. At the 10-year follow up, significant improvements were observed on BPD domains, suicidal behavior, and other clinical measures...
October 17, 2016: Journal of Personality Disorders
L Guillod, S Habersaat, M Suter, T Jeanneret, C Bertoni, P Stéphan, S Urben
BACKGROUND: Adolescence is a stressful period where important biological, psychological and social changes occur. Adolescents are particularly vulnerable during this developmental period and can use various strategies to deal with daily stress, such as substance use or externalizing behaviors. In previous studies, stress in adolescents with externalizing behaviors was often linked to ineffective cognitive coping strategies (i.e., constructive thinking) and overlooking the biological aspects involved in stress management such as neuroendocrine regulation...
October 10, 2016: L'Encéphale
Cynthia J Willner, Lisa M Gatzke-Kopp, Bethany C Bray
High rates of comorbidity are observed between internalizing and externalizing problems, yet the developmental dynamics of comorbid symptom presentations are not yet well understood. This study explored the developmental course of latent profiles of internalizing and externalizing symptoms across kindergarten, first grade, and second grade. The sample consisted of 336 children from an urban, low-income community, selected based on relatively high (61%) or low (39%) aggressive/oppositional behavior problems at school entry (64% male; 70% African American, 20% Hispanic)...
November 2016: Development and Psychopathology
Paola Friedrich, Catherine G Lam, Geetinder Kaur, Elena Itriago, Raul C Ribeiro, Ramandeep S Arora
BACKGROUND: Understanding and addressing treatment abandonment (TxA) is crucial for bridging the pediatric cancer survival gap between high-income (HIC) and low-and middle-income countries (LMC). In childhood cancer, TxA is defined as failure to start or complete curative cancer therapy and known to be a complex phenomenon. With rising interest on causes and consequences of TxA in LMC, this study aimed to establish the lay-of-the-land regarding determinants of TxA globally, perform and promote comparative research, and raise awareness on this subject...
2016: PloS One
Brian Hare
The challenge of studying human cognitive evolution is identifying unique features of our intelligence while explaining the processes by which they arose. Comparisons with nonhuman apes point to our early-emerging cooperative-communicative abilities as crucial to the evolution of all forms of human cultural cognition, including language. The human selfdomestication hypothesis proposes that these early-emerging social skills evolved when natural selection favored increased in-group prosociality over aggression in late human evolution...
October 12, 2016: Annual Review of Psychology
Giovanni Tallini, R Michael Tuttle, Ronald A Ghossein
CONTEXT: The purpose of this review is to provide the historical context to recent developments in the classification of the follicular variant of papillary thyroid carcinoma (FVPTC), an entity that has long created significant controversy. The scope is to illustrate the evolution of the diagnostic criteria for papillary thyroid carcinoma, clarifying the role of molecular analysis, and the impact on patient management. EVIDENCE ACQUISITION: A PubMed search using the terms "follicular variant" and "papillary thyroid carcinoma" covering the years 1960-2016 was performed...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
A M C Coneo, A R Thompson, A Lavda
BACKGROUND: Individuals with visible skin conditions often experience stigmatisation and discrimination. This may trigger maladaptive responses such as feelings of anger and hostility with negative consequences to social interactions and relationships. OBJECTIVES: The present study aimed to identify psychosocial factors contributing to aggression levels in dermatology patients. METHODS: Data was obtained from ninety-one participants recruited from out-patient clinics in the north of England, UK...
October 11, 2016: British Journal of Dermatology
Rebecca J Weber, Kenneth D Gadow
The present study aimed to characterize the association of psychopathology with the clinical correlates of epilepsy, asthma, and allergy within and between neurobehavioral syndromes. Participants were consecutively evaluated youth (6-18 years, 75 % male) with autism spectrum disorder (ASD; n = 589) and non-ASD outpatient psychiatry referrals (n = 653). Informants completed a background questionnaire (parents) and a psychiatric symptom severity rating scale (parents, teachers). Youth with ASD had higher rates of epilepsy and allergy but not asthma than psychiatry referrals, even when analyses were limited to youth with IQ ≥ 70...
October 11, 2016: Journal of Abnormal Child Psychology
J Dunn, G Garvey, P C Valery, D Ball, K M Fong, S Vinod, D L O'Connell, S K Chambers
PURPOSE: Globally, lung cancer is the most common cancer and the leading cause of cancer death. Problematically, there is a wide variation in the management and survival for people with lung cancer and there is limited understanding of the reasons for these variations. To date, the views of health professionals across relevant disciplines who deliver such care are largely absent. The present study describes Australian health professionals' views about barriers to lung cancer care to help build a research and action agenda for improving lung cancer outcomes...
October 10, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Stefano S K Kaburu, Annika Paukner, Elizabeth A Simpson, Stephen J Suomi, Pier F Ferrari
The identification of early markers that predict the development of specific social trajectories is critical to understand the developmental and neurobiological underpinnings of healthy social development. We investigated, in infant rhesus macaques (Macaca mulatta), whether newborns' capacity to imitate facial gestures is a valid predictive marker for the emergence of social competencies later in development, at one year of age. Here we first assessed whether infant macaques (N = 126) imitate lipsmacking gestures (a macaque affiliative expression) performed by a human experimenter in their first week of life...
October 11, 2016: Scientific Reports
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