48,120 results match your criteria Aggression


[Coercion and aggression in psychiatry: the individual psychological dimension of aggressive and coercive acts by therapists].

Fortschr Neurol Psychiatr 2018 Dec 11. Epub 2018 Dec 11.

Klinik für Psychiatrie, Psychotherapie und Präventivmedizin, LWL-Universitätsklinikum der Ruhr-Universität Bochum.

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December 2018

Adaptive responses to low doses of radiation or chemicals: their cellular and molecular mechanisms.

Cell Mol Life Sci 2018 Dec 8. Epub 2018 Dec 8.

Institut de Radioprotection et de Sureté Nucléaire (IRSN), PSE-SANTE, SESANE, LRTOX, B.P. no 17, 92262, Fontenay-aux-Roses Cedex, France.

This article reviews the current knowledge on the mechanisms of adaptive response to low doses of ionizing radiation or chemical exposure. A better knowledge of these mechanisms is needed to improve our understanding of health risks at low levels of environmental or occupational exposure and their involvement in cancer or non-cancer diseases. This response is orchestrated through a multifaceted cellular program involving the concerted action of diverse stress response pathways. Read More

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December 2018

Family structure, birth order, and aggressive behaviors among school-aged boys with attention deficit hyperactivity disorder (ADHD).

Soc Psychiatry Psychiatr Epidemiol 2018 Dec 7. Epub 2018 Dec 7.

Institute of Public Health, National Yang-Ming University, 155 Li-Nong St., Sec. 2 Beitou, Taipei, Taiwan.

Purpose: To evaluate the associations between family structure, birth order, and aggressive behaviors among school-aged boys with attention deficit hyperactivity disorder (ADHD).

Methods: We conducted a matched case-control study. Data were retrieved from medical records at a psychiatry center in northern Taiwan. Read More

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December 2018

A Randomized, Controlled Trial of the Impact of the Couple CARE for Parents of Newborns Program on the Prevention of Intimate Partner Violence and Relationship Problems.

Prev Sci 2018 Dec 7. Epub 2018 Dec 7.

Centers for Disease Control and Prevention, Atlanta, GA, USA.

Effective, accessible prevention programs are needed for adults at heightened risk for intimate partner violence (IPV). This parallel group randomized controlled trial examines whether such couples receiving the American version of Couple CARE for Parents of Newborns (CCP; Halford et al. 2009) following the birth of a child, compared with controls, report fewer first occurrences of clinically significant IPV, less frequent physical and psychological IPV, and improved relationship functioning. Read More

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December 2018

The prognostic value of CXCR4, α-SMA and WASL in upper lip basal cell carcinomas.

Rom J Morphol Embryol 2018 ;59(3):839-849

Department of Dental Materials, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, Romania;

Lip cancers account for 10-12% of the total head and neck cancers and, although squamous cell carcinoma is by far the most common lower lip cancer, the basal cell carcinoma (BCC) seems to be more common for the upper lip. Most BCCs have a clinically indolent behavior, but there are also local aggressive and∕or metastatic cases, with the incidence of such cases being estimated at about 1-10% of all cases of BCC. Many of the molecular mechanisms underlying this aggression are still unknown, which is why our study aimed to investigate the potential prognosis of a few markers, such as C-X-C chemokine receptor type 4 (CXCR4), alpha-smooth muscle actin (α-SMA) and Wiskott-Aldrich syndrome like (WASL) in upper lip BCCs. Read More

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January 2018

Histological and immunohistochemical study on the apical granuloma.

Rom J Morphol Embryol 2018 ;59(3):811-817

Research Center for Microscopic Morphology and Immunology, University of Medicine and Pharmacy of Craiova, Romania;

Introduction: Periapical granuloma is one of the most frequent periodontal pathology and belongs to the group named as apical periodontitis.

Materials And Methods: Out of 78 of diagnosed granulomas, we selected samples that we analyzed histologically and immunohistochemically.

Results: The histopathological aspect has been dominated by the presence of mononuclear cells of the lymphocyte and plasma cells type, showing the chronic aspect of the apical lesion. Read More

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January 2018

Use of Meloxicam or Ketoprofen for Piglet Pain Control Following Surgical Castration.

Front Vet Sci 2018 26;5:299. Epub 2018 Nov 26.

Department of Pathobiology, University of Guelph, Guelph, ON, Canada.

Surgical castration of piglets is performed routinely on commercial pig farms, to prevent boar taint and minimize aggression. While this procedure is known to be painful, piglets are generally not provided any analgesic for pain relief, leading to welfare concerns. The objectives of this study were to assess the efficacy of two non-steroidal anti-inflammatory drugs (NSAIDs), meloxicam (MEL) (0. Read More

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November 2018

Use of electroconvulsive therapy in adolescents with schizophrenia in China.

Child Adolesc Psychiatry Ment Health 2018 5;12:49. Epub 2018 Dec 5.

1Beijing Anding Hospital, Capital Medical University, Ankang Road 5, Xicheng District, Beijing, China.

Background: Electroconvulsive therapy (ECT) is an effective treatment for psychiatric disorders such as schizophrenia, major depression and bipolar disorder. However, few studies have addressed the use of ECT in adolescents with schizophrenia. The aims of our study were to investigate the frequency of ECT, and its relationship with clinical and demographic correlates among adolescents with schizophrenia in China. Read More

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December 2018

Is menstrual Psychosis a Forgotten Entity?

Indian J Psychol Med 2018 Nov-Dec;40(6):574-576

Department of Psychiatry, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.

The connection between menstruation and psychosis has been recognized since the 18 Century. However, there are few case reports available in modern times describing about 30 patients with this condition. The psychosis may occur in the premenstrual phase in some patients and in others it begins with the onset of menses. Read More

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December 2018

Resistance to thyroid hormone-beta co-existing with partially empty sella in a Jordanian male.

Endocrinol Diabetes Metab Case Rep 2018 Dec 5;2018. Epub 2018 Dec 5.

ObesityEndocrine and Metabolism Centre, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia.

Resistance to thyroid hormone-beta (RTHbeta) is a rare inherited syndrome characterized by variable reduced tissue responsiveness to the intracellular action of triiodothyronine (T3), the active form of the thyroid hormone. The presentation of RTHbeta is quite variable and mutations in the thyroid hormone receptor beta (THR-B) gene have been detected in up to 90% of patients. The proband was a 34-year-old Jordanian male who presented with intermittent palpitations. Read More

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December 2018

Low cholesterol is not always good: low cholesterol levels are associated with decreased serotonin and increased aggression in fish.

Biol Open 2018 Dec 10;7(12). Epub 2018 Dec 10.

Physiology Department, Biosciences Institute, Sao Paulo State University, Sao Paulo 18618-689, Brazil

The inverse relationship between serum cholesterol and levels of aggression led to the cholesterol-serotonin hypothesis. According to this hypothesis, low dietary cholesterol intake leads to depressed central serotonergic activity, which is associated with increased aggression. Here we present the hypothesis about the evolutionary origins of low cholesterol and aggressive behavior, investigating the relationship between low levels of plasma cholesterol and aggressive behavior in fish. Read More

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December 2018

Brivaracetam in adults with drug-resistant epilepsy and psychiatric comorbidities.

Epilepsy Behav 2018 Dec 7;90:129-131. Epub 2018 Dec 7.

Atkinson Morley Regional Neuroscience Centre, St George's University Hospitals NHS Foundation Trust, London, UK; Institute of Medical and Biomedical Education, St George's University of London, UK. Electronic address:

This is a case series of 25 patients with drug-resistant epilepsy and psychiatric comorbidities who started on brivaracetam (BRV) at St George's University Hospitals and Frimley Health in London. Median BRV dose was 150 mg for a median follow-up period of 8 months. Twenty had focal epilepsy, four had generalized epilepsies, and one had unclassified epilepsy; 76% had mood disorders (either depression or bipolar disorder), 12% intellectual disabilities with autism spectrum disorder and challenging behavior, and 12% psychoses. Read More

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December 2018

Digit ratio (2D:4D) moderates the change in handgrip strength on an aggressive stimulus: A study among Polish young adults.

Early Hum Dev 2018 Dec 6;128:62-68. Epub 2018 Dec 6.

Department of Anthropology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland. Electronic address:

Background: The ratio of the lengths of second finger (2D) to the fourth (4D) is a putative indicator of foetal hormonal exposure. The link between 2D:4D and physical strength or sports performance in not consistent. It was suggested that the association of 2D:4D with the sporting and physical ability is better demonstrated in the context of challenge and competition, either real or simulated. Read More

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December 2018

A meta-analytical evaluation of the dual-hormone hypothesis: Does cortisol moderate the relationship between testosterone and status, dominance, risk taking, aggression, and psychopathy?

Authors:
Mr Tycho Dekkers

Neurosci Biobehav Rev 2018 Dec 7. Epub 2018 Dec 7.

Developmental Psychology, University of Amsterdam, Nieuwe achtergracht 129, 1018, WT, Amsterdam, The Netherlands. Electronic address:

According to the dual-hormone hypothesis, the relationship between testosterone and status-relevant behavior is moderated by cortisol, suggesting this relationship only exists when cortisol is low. In the current study, a meta-analysis (including 30 papers with 33 studies, 49 effect sizes, n = 8538) on the interaction effect of testosterone and cortisol on status-relevant behavior (i.e. Read More

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December 2018

Ideal despotic distributions in convict cichlids (Amatitlania nigrofasciata)? Effects of predation risk and personality on habitat preference.

Behav Processes 2018 Dec 6. Epub 2018 Dec 6.

Department of Biology, Concordia University, Montréal, QC, Canada. Electronic address:

Habitat structure may reduce predation risk by providing refuge from predators. However, individual behavioural differences (i.e. Read More

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December 2018

Distinct effects of early-life experience and trait aggression on cardiovascular reactivity and recovery.

Physiol Behav 2018 Dec 4. Epub 2018 Dec 4.

Department of Psychiatry and Behavioral Medicine, Carilion Clinic, Roanoke, VA, United States; School of Neuroscience, Virginia Tech, Blacksburg, VA, United States. Electronic address:

We previously demonstrated independent effects of early-life experience (ELE) and trait aggression (TA) on resting heart rate (HR) and mean arterial pressure (MAP) in rats. The present study examined the effects of TA and ELE on stress-evoked cardiovascular reactivity and recovery. Pups born to Wistar-Kyoto dams were exposed to daily 180-min periods of maternal separation (MS) during the first two weeks of life, and aggression was assessed in adult offspring using the resident-intruder test. Read More

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December 2018

A novel supportive assessment for comprehensive aggression using EEG and ECG.

Neurosci Lett 2018 Dec 4;694:136-142. Epub 2018 Dec 4.

School of Undergraduate Studies, DGIST, Daegu, Republic of Korea. Electronic address:

Aggression is a complex, ubiquitous phenomenon that impacts behavioral traits and psychological health. Assessing aggression is challenging because aggression constitutes multiple subtraits, such as anger, reactive aggression, and overt aggression. Conventional methods of assessing aggression are susceptible to bias because they mainly rely upon self-reports. Read More

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December 2018

Use of midazolam in combination with medetomidine for premedication in healthy dogs.

Vet Anaesth Analg 2018 Aug 30. Epub 2018 Aug 30.

School of Veterinary Medicine, University of Bristol, Langford, Bristol, UK.

Objective: To assess the sedative effects, propofol sparing properties and impact on quality of induction and intubation of intravenous (IV) medetomidine and midazolam administered consecutively at different doses compared to medetomidine alone in healthy dogs for premedication.

Study Design: Prospective, randomized, blinded, clinical study.

Animals: A total of 40 adult healthy client owned dogs, weighing 18 ± 7 kg (mean ± standard deviation). Read More

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Winner and loser effects in lobster cockroach contests for social dominance.

Horm Behav 2018 Dec 7. Epub 2018 Dec 7.

Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan, ROC.

In the context of animal aggression, the winner/loser effect is a cross-taxa phenomenon. In the present study, the effect of social contest experience on winning and losing subsequent encounters was investigated in the furious male lobster cockroach, Nauphoeta cinerea. Dominant and subordinate individuals were generated as the result of an encounter between two socially naïve males (SNMs); the winner and loser were designated as 1st encounter dominants and 1st encounter subordinates, respectively. Read More

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December 2018

Aggressive Behaviors in Alzheimer Disease and Mild Cognitive Impairment: Systematic Review and Meta-Analysis.

Am J Geriatr Psychiatry 2018 Oct 19. Epub 2018 Oct 19.

Department of Psychiatry (RY, AT, RJ, SF),Warneford Hospital, University of Oxford, Oxford, England. Electronic address:

Objective: We aim to estimate the risk of perpetrating aggression in Alzheimer disease (AD) and mild cognitive impairment (MCI) by conducting a systematic review and meta-analysis of primary studies.

Methods: A systematic search was conducted in six bibliographic databases according to a preregistered protocol. Studies that reported aggressive behaviors in individuals with AD and MCI compared with healthy individuals or those with other dementia etiologies were identified. Read More

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October 2018

No sex differences in the origins of covariation between social and physical aggression.

Psychol Med 2018 Dec 11:1-9. Epub 2018 Dec 11.

Department of Psychology,Michigan State University,316 Physics Road, Room 37A, Psychology Building, East Lansing, MI, 48824,USA.

Background: Prior work has indicated both theoretical and empirical overlap between social and physical aggression. The extent to which their covariance can be explained by the same underlying genetic or environmental factors, however, remains unclear. It is also uncertain whether or how the origins of their covariance might vary across sex. Read More

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December 2018

The Relation of Reciprocated and Nonreciprocated Friendship Nominations to Peer Social Competence for Chinese Elementary School Children.

J Genet Psychol 2018 Dec 8:1-14. Epub 2018 Dec 8.

d Key Laboratory of Adolescent CyberPsychology and Behavior , Central China Normal University , Wuhan , China.

The authors examined associations between different forms of children's friendship nomination reciprocity (mutual, unilateral given, unilateral received) and other measures of children's peer social competence (liking, loneliness, overt aggression, perceived popularity) for 501 Chinese third- to sixth-grade students. Using a multigroup path analysis (with gender as group), for both boys and girls, all three forms of friendship nominations were negatively related to self-reported loneliness. Mutual friendship nominations and unilateral received friendship nominations were positively related to peer nominations for liking and to peer nominations of perceived popularity. Read More

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December 2018

A Study Into the Severity of Forensic and Civil Inpatient Aggression.

J Interpers Violence 2018 Dec 7:886260518817040. Epub 2018 Dec 7.

1 De Forensische Zorgspecialisten, Utrecht, The Netherlands.

Aggressive incidents occur frequently in health care facilities, such as psychiatric care and forensic psychiatric hospitals. Previous research suggests that civil psychiatric inpatients may display more aggression than forensic inpatients. However, there is a lack of research comparing these groups on the incident severity, even though both frequency and severity of aggression influence the impact on staff members. Read More

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December 2018

Examining the factor structure of the self-report Yale-Brown Obsessive Compulsive Scale Symptom Checklist.

Psychiatry Res 2018 Nov 19;271:299-305. Epub 2018 Nov 19.

Amsterdam UMC, Vrije Universiteit, APH-research Institute, Department of Psychiatry and GGZ inGeest, Oldenaller 1, 1081 HJ Amsterdam, The Netherlands.

Obsessive-compulsive symptom dimensions are important in studies about the pathogenesis and treatment of obsessive-compulsive disorder. More than 30 factor analytic studies using the Yale-Brown Obsessive Compulsive Scale Symptom Checklist (Y-BOCS-SC) interview version have been published. However, a drawback of the Y-BOCS-SC interview is that it is time-consuming for the clinician. Read More

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November 2018

Maternal and paternal origin differentially affect prosocial behavior and neural mechanisms in prairie voles.

Behav Brain Res 2018 Dec 3;360:94-102. Epub 2018 Dec 3.

Department of Biology and Integrated Bioscience Program, The University of Akron, Akron, OH, 44325, United States; Department of Biological Sciences, University of Texas at El Paso, El Paso, 79968, United States.

This study tested the hypotheses that maternal and paternal effects differentially influence expression of their offspring's adult behavior and underlying neural mechanisms. We predicted that maternal influences would be greater than paternal influences on male offspring. We tested these hypotheses by cross-breeding two phenotypically-, behaviorally- and neuroanatomically-distinct populations of prairie voles (Microtus ochrogaster) from Illinois, which are highly prosocial, and Kansas, which are significantly less prosocial. Read More

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December 2018
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Violence and aggression in young women: The importance of psychopathy and neurobiological function.

Physiol Behav 2018 Dec 3. Epub 2018 Dec 3.

Institute for Drug and Alcohol Studies, Departments of Psychiatry, Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA 23298, United States.

Psychopathy is one of the most researched risk factors for violence. Yet, research in women is sparse. The present study aimed to test if the link between the four-facet structure of psychopathy and interpersonal violence and aggression was moderated by neurobiological function (indexed by resting respiratory sinus arrhythmia; RSA). Read More

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December 2018
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Comparison of electroencephalogram (EEG) response to MDPV versus the hallucinogenic drugs MK-801 and ketamine in rats.

Exp Neurol 2018 Dec 3. Epub 2018 Dec 3.

Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA. Electronic address:

Synthetic cathinones, often marketed as 'bath salts', have been reported to induce an excited delirium syndrome with characteristic symptoms such as paranoid, hallucination and even aggression. 3,4-Methylenedioxypyrovalerone (MDPV), a norepinephrine-dopamine reuptake inhibitor (NDRI), is one of the psychoactive ingredients in bath salts. The present study utilized cortical EEG and brain microdialysis in rats to compare the effects of MDPV (0. Read More

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December 2018
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Concurrent Developmental Course of Sleep Problems and Emotional/behavioral Problems in Childhood and Adolescence as Reflected by the Dysregulation Profile.

Sleep 2018 Dec 6. Epub 2018 Dec 6.

Centre and Discipline of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, The University of Western Australia, Perth, WA, Australia.

Objectives: Longitudinal data on the course and relationship of concurrent psychopathology in youth are scarce but are of need for better practical patient care and prevention. This study explores the course of (and relationships over time) between sleep problems and concurrent dimensional difficulties relating to anxiety/depression, attention deficiency and aggressive behaviors in childhood and adolescence. The latter three may jointly form a broad syndrome, the dysregulation profile. Read More

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December 2018
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Altered Global mRNA Expressions of Pain and Aggression Related Genes in the Blood of Children with Autism Spectrum Disorders.

J Mol Neurosci 2018 Dec 5. Epub 2018 Dec 5.

Department of Medical Genetics, Erciyes University Medical Faculty, 38039, Kayseri, Turkey.

Autism spectrum disorder (ASD) is characterized by repetitive stereotypic behaviors, restricted interests, social withdrawal, and communication deficits. Aggression and insensitivity to pain are largely unexplained in these cases. We analyzed nine mRNA expressions of the candidate genes related to aggression and insensitivity to pain in the peripheral blood of patients with ASD. Read More

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December 2018
5 Reads

A Cross-Lagged Study of Developmental Trajectories of Video Game Engagement, Addiction, and Mental Health.

Front Psychol 2018 21;9:2239. Epub 2018 Nov 21.

Department of Psychosocial Science, Faculty of Psychology, University of Bergen, Bergen, Norway.

Video game addiction has been associated with an array of mental health variables. There is a paucity of longitudinal studies investigating such associations, and studies differentiating addicted gaming from problem and engaged (i.e. Read More

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November 2018

Among substance-abusing traffic offenders, poor sleep and poor general health predict lower driving skills but not slower reaction times.

Psychol Res Behav Manag 2018 9;11:557-566. Epub 2018 Nov 9.

Substance Abuse Prevention Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran,

Background: Traffic accidents are a significant health issue in Iran. Explanations for such accidents have included single consideration of the role of poor sleep and negative psychological trait and state variables. In this study, we examined whether and to what extent sleep, general health, and aggression can concomitantly predict driving behavior. Read More

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November 2018

A circuit from hippocampal CA2 to lateral septum disinhibits social aggression.

Nature 2018 Dec 5. Epub 2018 Dec 5.

Department of Neuroscience, The Kavli Institute for Brain Science, Mortimer B. Zuckerman Mind Brain Behavior Institute, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.

Although the hippocampus is known to be important for declarative memory, it is less clear how hippocampal output regulates motivated behaviours, such as social aggression. Here we report that pyramidal neurons in the CA2 region of the hippocampus, which are important for social memory, promote social aggression in mice. This action depends on output from CA2 to the lateral septum, which is selectively enhanced immediately before an attack. Read More

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December 2018

The Explosion of a New Designer Drug, Flakka: Implications for Practice.

J Addict Nurs 2018 Oct/Dec;29(4):255-259

Deborah Salani, DNP, PMHNP-BC, APRN, NE-BC, and Martin M. Zdanowicz, PhD, MEd, MA, School of Nursing and Health Studies, University of Miami, Coral Gables, Florida. Laura D. Albuja, DNP, APRN, FNP-C, College of Nursing and Health Studies, Barry University, Miami Shores, Florida.

There are many challenges facing healthcare professionals. One such challenge is the continuous introduction of new synthetic drugs. Synthetic drugs pose many difficulties to providers, including identification of the drug ingested, management of symptoms, ensuring safety of the patient and his or her environment, and continual monitoring after the initial symptoms, because synthetic cathinones have many long-term effects on an individual. Read More

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December 2018

Childhood trauma exposure and gun violence risk factors among victims of gun violence.

Psychol Trauma 2018 Dec 3. Epub 2018 Dec 3.

Southeastern Louisiana Veterans Health Care System.

Objective: Gun violence is a serious public health concern, yet risk factors for gun violence involvement remain understudied. Childhood trauma exposure, such as domestic violence (DV) and community violence (CV), may increase the risk for aggression, although this relationship has not been examined in the context of gun violence. The aim of the current study was to investigate whether different childhood trauma ecologies are related to increased gun violence involvement and gun violence risk factors among individuals hospitalized for a gun injury. Read More

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December 2018

The influence of parenting practices and neighborhood characteristics on the development of childhood aggression.

J Community Psychol 2019 Jan 22;47(1):135-146. Epub 2018 Jun 22.

University of Virginia.

The present study examined the way in which neighborhood impoverishment, neighborhood social processes, and parenting practices relate to the development of aggressive behavior among children aged 6-8 years raised in low-income neighborhoods. A total of 424 children (male = 207, female = 217) and their families participated in the study. Hierarchical linear regression revealed that neighborhood impoverishment, neighborhood social processes, and parental monitoring/supervision were associated with childhood aggression 2 years later. Read More

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January 2019

Male-inflicted wounds have opposite effects on hair cortisol for captive male and female rhesus macaques (Macaca mulatta) following new group formation.

Primates 2018 Nov 30. Epub 2018 Nov 30.

Department of Anthropology, University of California, Davis, Davis, CA, USA.

Sexual dimorphism in body size, aggression, and dispersal patterns may affect the degree to which males and females perceive aggression from either sex as stressful. Whereas male macaques typically disperse to new groups at maturity, thus encountering many unfamiliar individuals of both sexes, females are philopatric, usually only encountering unfamiliar males who transfer into their natal groups. In rare circumstances, however, group fusions can expose both males and females to many novel individuals, which often increases aggression. Read More

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November 2018

Bystander Intervention to Prevent Sexual Violence: The Overlooked Role of Bystander Alcohol Intoxication.

Psychol Violence 2018 Sep 19;8(5):639-647. Epub 2017 Oct 19.

University of Nebraska-Lincoln.

Objectives: Bystander training is a promising form of sexual violence (SV) prevention that has proliferated in recent years. Though alcohol commonly accompanies SV, there has been little consideration of the potential impact of alcohol intoxication on SV prevention. The aims of this commentary are to provide an integrative framework for understanding the proximal effect of alcohol on SV intervention, provide recommendations to spark novel research, and guide the application of research to bystander programming efforts. Read More

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September 2018

Greetings in male Guinea baboons and the function of rituals in complex social groups.

J Hum Evol 2018 Dec 3;125:87-98. Epub 2018 Nov 3.

Cognitive Ethology Laboratory, German Primate Center, Göttingen, Germany; Leibniz ScienceCampus Primate Cognition, Göttingen, Germany; Department for Primate Cognition, Georg-August-University Göttingen, Göttingen, Germany.

Ritualized greetings, defined as exchanges of non-aggressive signals, are common among males living in multi-male groups and are thought to balance the trade-offs of male co-residence. While ritualized greetings are widespread in the animal kingdom, the behavioral repertoire described in the genus Papio is exceptional, as it involves potentially harmful behaviors such as genital fondling. Although greetings are one of the most striking male social interactions in baboons, their function is still disputed. Read More

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December 2018

Effect of Supplementation With Omega-3 Fatty Acids, Magnesium, and Zinc on Canine Behavioral Disorders: Results of a Pilot Study.

Top Companion Anim Med 2018 Dec 30;33(4):150-155. Epub 2018 Aug 30.

Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran. Electronic address:

Recent discoveries have shown that the chances of a dog developing a behavioral disorder may depend upon a number of factors including nutrition. The current pilot study was designed to provide an assessment of the efficacy of a dietary supplement containing omega-3 fatty acids, magnesium, and zinc on some common behavioral disorders in a population of Iranian domestic dogs. In total, 48 dogs including 6 dogs without any behavior disorder (control group) and 42 dogs with at least 1 common behavioral disorder, namely excessive activity, inappropriate elimination, fearfulness, destructiveness, and aggression toward unfamiliar people and dogs (test group), were given daily oral dose of gelatin capsules of fish oil supplements containing 330 mg eicosapentaenoic acid and 480 mg docosahexaenoic acid. Read More

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December 2018

Towards a neurobiology of female aggression.

Neuropharmacology 2018 Nov 28. Epub 2018 Nov 28.

Department of Neuroscience, University of Minnesota, Minneapolis, MN, 55455, USA.

Although many people think of aggression as a negative or undesirable emotion, it is a normal part of many species' repertoire of social behaviors. Purposeful and controlled aggression can be adaptive in that it warns other individuals of perceived breaches in social contracts with the goal of dispersing conflict before it escalates into violence. Aggression becomes maladaptive, however, when it escalates inappropriately or impulsively into violence. Read More

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November 2018

The course of neuropsychiatric symptoms in patients with dementia in primary care.

Fam Pract 2018 Dec 4. Epub 2018 Dec 4.

Department of Primary and Community Care, Center for Family Medicine, Geriatric Care and Public Health, Radboud University Medical Center, Nijmegen, The Netherlands.

Background: During the course of dementia, most people develop some type of neuropsychiatric symptoms (NPS), which result in lower quality of life, high caregiver burden, psychotropic drug use and a major risk of institutionalization. Studies on NPS in people with dementia have been mainly conducted in clinical centres or psychiatric services.

Objectives: To investigate the course of NPS in people with dementia in primary care. Read More

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December 2018
2 Reads

Domains of common mental disorders in women reporting intimate partner violence.

Rev Lat Am Enfermagem 2018 Nov 29;26:e3099. Epub 2018 Nov 29.

Universidade Federal do Piauí, Departamento de Enfermagem, Teresina, PI, Brasil.

Objective: to verify associations between the types of intimate partner violence and the domains of common mental disorders in women.

Method: cross-sectional study with 369 women. The information was obtained through the instruments Self-Reporting Questionnaire and Conflict Tactic Scales. Read More

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November 2018

Coercive control during the transition to parenthood: An overlooked factor in intimate partner violence and family wellbeing?

Aggress Behav 2018 Dec 5. Epub 2018 Dec 5.

Department of Psychology, University of Victoria, Victoria, Canada.

A key criticism of research on intimate partner violence (IPV) is that a sole focus on physical or psychological acts of aggression fails to account for other forms of manipulative behavior that may have serious consequences for partner and family functioning. The current study examines coercive control, or behavior designed to constrain or compel an intimate partner in some way, in a longitudinal community sample of 98 heterosexual couples assessed in the third trimester of pregnancy as well as at 1 and 2 years postpartum. We found that the majority of couples reported at least some coercive controlling behavior during the transition to parenthood, that coercive control was highly bi-directional between partners, and that women were more likely than men to engage in coercive control before parenthood. Read More

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December 2018

Breaking the link: Distraction from emotional cues reduces the association between trait disinhibition and reactive physical aggression.

Aggress Behav 2018 Dec 5. Epub 2018 Dec 5.

Department of Psychology, Georgia State University, Atlanta, Georgia.

Research has implicated biased attention allocation toward emotional cues as a proximal mechanism in the association between trait disinhibition and physical aggression. The current study tested this putative cognitive mechanism by incentivizing a shift of attention from a provoking stimulus to a neutral stimulus during a laboratory aggression paradigm. Participants were 119 undergraduate men. Read More

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December 2018
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Anger Weakens Behavioral Inhibition Selectively in Contact Athletes.

Front Hum Neurosci 2018 20;12:463. Epub 2018 Nov 20.

School of Kinesiology, Shanghai University of Sport, Shanghai, China.

Studies have increasingly found that the aggression level of contact athletes is higher than that of non-athletes. Given that higher aggression levels are associated with worse behavioral inhibition and that athletes show better behavioral inhibition than non-athletes, it is unclear why contact athletes would exhibit higher aggression levels. Emotion, especially anger, is an important factor in the generation of aggressive behavior, and anger has been shown to affect behavioral inhibition. Read More

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November 2018

Are Burnout Syndrome and Depression Predictors for Aggressive Behavior Among Mental Health Care Professionals?

Med Arch 2018 Oct;72(4):244-248

Department of Psychology, University of Central Lancashire, Athens, Greece.

Aim: This study aims to examine the possible relation between depression and burnout as predictors to aggressive behaviors among mental healthcare professionals.

Methods: For the purposes of this study 72 mental health care professionals were recruited and were evaluated in three questionnaires which were provided to them online. Firstly regarding depression, the Center for Epidemiologic Studies Depression Scale (CES-D) was administered, secondly, concerning burnout, Maslach Burnout Inventory (MBI) was applied and finally, regarding aggression, the Aggression Questionnaire (GAQ) was employed. Read More

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October 2018

Facial expression as a potential measure of both intent and emotion.

Sci Rep 2018 Dec 4;8(1):17602. Epub 2018 Dec 4.

Animal Behaviour & Welfare, Animal and Veterinary Sciences Research Group, Scotland's Rural College (SRUC), West Mains Road, Edinburgh, EH9 3JG, UK.

Facial expressions convey information on emotion, physical sensations, and intent. The much debated theories that facial expressions can be emotions or signals of intent have largely remained separated in animal studies. Here we integrate these approaches with the aim to 1) investigate whether pigs may use facial expressions as a signal of intent and; 2) quantify differences in facial metrics between different contexts of potentially negative emotional state. Read More

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December 2018
2 Reads

Evaluation of the Effects of Carbon 60 Nanoparticle Exposure to Adult Zebrafish: A Behavioral and Biochemical Approach to Elucidate the Mechanism of Toxicity.

Int J Mol Sci 2018 Dec 3;19(12). Epub 2018 Dec 3.

Department of Chemistry, Chung Yuan Christian University, Chung-Li 32023, Taiwan.

There is a growing concern for the potential toxicity of engineered nanomaterials that have made their way into virtually all novel applications in the electronics, healthcare, cosmetics, technology, and engineering industries, and in particular, biomedical products. However, the potential toxicity of carbon 60 (C) at the behavioral level has not been properly evaluated. In this study, we used idTracker, a multitracking algorithm to quantitatively assess behavioral toxicity induced by C nanoparticles (C NPs) in adult zebrafish. Read More

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December 2018
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Behavioral consequences of dietary exposure to crude oil extracts in the Siamese fighting fish (Betta splendens).

Aquat Toxicol 2018 Nov 29;207:34-42. Epub 2018 Nov 29.

Developmental Integrative Biology Research Group, Department of Biological Sciences, University of North Texas,1155 Union Circle #305220, Denton, TX, 76203-5017, USA.

Uptake by fishes of crude oil and its polycyclic aromatic hydrocarbons (PAHs) components occurs via gills, dietary intake, or diffusion through the skin. Dietary exposure to crude oil and its components is environmentally relevant, and induces physiological and morphological disruptions in fish. However, the impacts of crude oil on fish social and reproductive behaviors and thus the possible influences on reproductive success are poorly understood. Read More

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November 2018
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