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Rachel K B Hamilton, Joseph P Newman
Hamilton and colleagues (2015) recently proposed that an integrative deficit in psychopathy restricts simultaneous processing, thereby leaving fewer resources available for information encoding, narrowing the scope of attention, and undermining associative processing. The current study evaluated this parallel processing deficit proposal using the Simultaneous-Sequential paradigm. This investigation marks the first a priori test of the Hamilton et al.'s theoretical framework. We predicted that psychopathy would be associated with inferior performance (as indexed by lower accuracy and longer response time) on trials requiring simultaneous processing of visual information relative to trials necessitating sequential processing...
October 24, 2016: 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
Evelyn Klein Haneveld, Jan H Kamphuis, Wineke Smid, Johnathan D Forbey
This study documents the associations between the MMPI-2-RF (Ben-Porath & Tellegen, 2008 ) scale scores and the Psychopathy Checklist Revised (PCL-R; Hare, 2003 ) facet scores in a forensic psychiatric sample. Objectives were to determine how the MMPI-2-RF scales might enhance substantive understanding of the nature of the 4 PCL-R facets and to discern possible implications for the treatment of psychopathic patients. A sample of 127 male forensic psychiatric offenders admitted to a Dutch forensic psychiatric hospital completed the PCL-R and the MMPI-2...
October 7, 2016: Journal of Personality Assessment
Suvi Saukkonen, Eeva T Aronen, Taina Laajasalo, Venla Salmi, Janne Kivivuori, Markus Jokela
We examined different forms of victimization experiences in relation to psychopathic features and whether these associations differed in boys and girls among 4855 Finnish school adolescents aged 15-16 years. Psychopathic features were measured with the Antisocial Process Screening Device- Self Report (APSD-SR). Victimization was assessed with questions about violent and abusive experiences across lifetime and within the last 12 months. Results from linear regression analysis showed that victimization was significantly associated with higher APSD-SR total scores, more strongly in girls than boys...
October 2016: Child Abuse & Neglect
Joeri K Tijdink, Lex M Bouter, Coosje L S Veldkamp, Peter M van de Ven, Jelte M Wicherts, Yvo M Smulders
BACKGROUND: Personality influences decision making and ethical considerations. Its influence on the occurrence of research misbehavior has never been studied. This study aims to determine the association between personality traits and self-reported questionable research practices and research misconduct. We hypothesized that narcissistic, Machiavellianistic and psychopathic traits as well as self-esteem are associated with research misbehavior. METHODS: Included in this cross-sectional study design were 535 Dutch biomedical scientists (response rate 65%) from all hierarchical layers of 4 university medical centers in the Netherlands...
2016: PloS One
Catherine Tuvblad, Kostas A Fanti, Henrik Andershed, Olivier F Colins, Henrik Larsson
There is limited research on the genetic and environmental bases of psychopathic personality traits in children. In this study, psychopathic personality traits were assessed in a total of 1189 5-year-old boys and girls drawn from the Preschool Twin Study in Sweden. Psychopathic personality traits were assessed with the Child Problematic Traits Inventory, a teacher-report measure of psychopathic personality traits in children ranging from 3 to 12 years old. Univariate results showed that genetic influences accounted for 57, 25, and 74 % of the variance in the grandiose-deceitful, callous-unemotional, and impulsive-need for stimulation dimensions, while the shared environment accounted for 17, 48 and 9 % (n...
September 28, 2016: European Child & Adolescent Psychiatry
Gabriele Masi, Annarita Milone, Paola Brovedani, Simone Pisano, Pietro Muratori
Disruptive Behavior Disorders (DBDs) are stable and impairing disorders, heterogeneous in presentation, developmental pathways, and treatment needs. Disentangling subtypes according to psychopathological dimensions is helpful for timely diagnoses, precise prognoses and tailored interventions. Psychopathic traits are relevant in subtyping DBDs with severe antisocial and aggressive behaviors. Three psychopathy dimensions have been found: 1) an affective dimension, the callous-unemotional (CU) trait, with lack of empathy and remorse, and with short-lived emotions; 2) an interpersonal dimension, the narcissistic domain, with manipulative abilities, superficial charm, egocentricity and grandiosity; 3) a behavioral dimension, the impulsivity or impulsive-irresponsibility, with irresponsibility, proneness to boredom, and novelty seeking...
September 25, 2016: Neuroscience and Biobehavioral Reviews
J Vandevoorde, N Estano, G Painset
OBJECTIVES: Suicide-homicide could be defined as a "suicidal" behaviour, which also includes the death of at least one other individual and sometimes up to hundreds. This literature review intends to highlight some characteristic features that might be found amongst the various types of suicide-homicide. It is a complex phenomenon which can occur in different situations, from a familial and somehow intimate setting (filicide, uxoricide, marital homicide…) to a public one (workplace shooting, school shooting), including a wide range of victims, from a single victim in marital cases of suicide-homicide to hundreds of victims in certain types, such as suicide by aircraft or warrior-like multi-homicids in terrorist acts...
September 19, 2016: L'Encéphale
Angela Book, Tabitha Methot-Jones, Julie Blais, Ashley Hosker-Field, Anthony Volk, Beth A Visser, Nathalie Gauthier, Ronald R Holden, Madeleine T D'Agata
The present study was a direct test of the cheater-hawk hypothesis which argues that psychopathy is related to two potentially adaptive interpersonal strategies: cheating and aggression. As expected, the measures of cheater and hawk behaviors comprised a single factor, according to a maximum-likelihood factor analysis. As hypothesized, psychopathic traits exhibited large positive correlations with measures of both cheater (entitlement, exploitiveness, and short-term mating orientation) and hawk (vengeance and aggression) behaviors...
September 19, 2016: Journal of Interpersonal Violence
Mehmet K Mahmut, Louise Cridland, Richard J Stevenson
This study examined the helping behavior of participants with high (High-P; 15 males, 13 females) and low (Low-P; 14 males, 16 females) psychopathic traits without their awareness. In the first of three tests, we found Low-P participants offered more help to an apparently lost female confederate than High-P participants. In the second test, High-P compared to Low-P males offered more help to an "injured" female experimenter, the reverse was true for females. In the third test, High-P compared to Low-P females offered more help to a female confederate who had apparently dropped papers they were carrying; whereas the reverse was true for males...
October 2016: Journal of General Psychology
N Yu Pyatnitsky
The author analyzed a symptom concept of Th. Ziehen that had competed with the Kraepelin nosological concept of mental disorders. The classification of psychopathological constitutions and defective states in mental diseases used by Th. Ziehen is discussed. The particular significance given by Th. Ziehen to overvalues in the formation of psychopathological phenomena and sexual perversions as major characteristics of the general type of inherited psychopathic constitution is emphasized. The Th. Ziehen's definition of psychopathic constitution is compared to Kraepelin's conception of psychopathic personality...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Elyse N Mowle, John F Edens, John W Clark, Karolina Sörman
Several recent studies have examined the effects of mental health and neuroscientific evidence on attitudes toward criminal defendants, suggesting that these factors may influence juror decision-making in meaningful ways. Few studies to date have manipulated both of these variables while also considering theoretically important individual difference variables (e.g., political orientation). Using a criminal case simulation, this study manipulated the presence of evidence concerning mental disorders (psychopathy and schizophrenia) and increasing levels of neuroscientific detail regarding a defendant's brain injury, and examined verdicts and sentencing recommendations in over 400 persons attending jury duty...
September 13, 2016: Behavioral Sciences & the Law
Fernanda Auciello Salvagni, Adriana de Siqueira, Andre Rinaldi Fukushima, Marina Frota de Albuquerque Landi, Heidi Ponge-Ferreira, Paulo Cesar Maiorka
Animal cruelty is a known behavior of psychopaths, and although the serial killing of humans is widely acknowledged worldwide, this type of crime against animals is seldom discussed. This report describes the necropsy and toxicological findings of 37 dogs and cats, which were found dead in plastic bags in Sao Paulo, Brazil. The animals had all been in the care of an alleged animal rescuer and were to be referred for adoption before being found dead. In the necropsy, the animals showed varying degrees of putrefaction, indicating different periods of death, as well as single or multiple perforations on the thorax...
October 2016: Forensic Science International
Christopher T A Gillen, Christopher T Barry, Lovina R Bater
BACKGROUND: Although the relation between impulsive-irresponsible psychopathic traits and substance use is well-documented, the path to developing substance use problems is less understood in adolescents with these characteristics. OBJECTIVES: To examine the associations between psychopathy, anxiety, and substance use motives and a mechanism by which anxiety and alcohol and marijuana coping motives mediate the relation between psychopathic traits and substance use-related problems...
December 5, 2016: Substance Use & Misuse
Hiroyuki Murota
Sweating disorders are sometimes observed in various systemic diseases that include genetic disorders, organ damage, metabolic impairment, autoimmune diseases, and neuropathic disorders. In these diseases, various symptoms such as autonomic failures, psychopathic disorders, abnormal skin innervation, and sweat gland dysfunction can interact with one another in diverse ways, resulting in impaired sweating. This review focuses on the influence of uremia (with or without hemodialysis) and diabetes mellitus on impaired sweating...
2016: Current Problems in Dermatology
Pedro Pechorro, Diana Ribeiro da Silva, Henrik Andershed, Daniel Rijo, Rui Abrunhosa Gonçalves
The aim of the present study was to examine the psychometric properties of the Youth Psychopathic Traits Inventory (YPI) among a mixed-gender sample of 782 Portuguese youth (M = 15.87 years; SD = 1.72), in a school context. Confirmatory factor analysis revealed the expected three-factor first-order structure. Cross-gender measurement invariance and cross-sample measurement invariance using a forensic sample of institutionalized males were also confirmed. The Portuguese version of the YPI demonstrated generally adequate psychometric properties of internal consistency, mean inter-item correlation, convergent validity, discriminant validity, and criterion-related validity of statistically significant associations with conduct disorder symptoms, alcohol abuse, drug use, and unprotected sex...
2016: International Journal of Environmental Research and Public Health
Edelyn Verona
Researchers have long acknowledged heterogeneity among persons who exhibit antisocial and violent behaviours. The study of psychopathic personality or psychopathy can help elucidate this heterogeneity through examination of the different facets that constitute this disorder. In particular, the distinct correlates of the interpersonal-affective traits (Factor 1) and the impulsive-antisocial traits (Factor 2) of psychopathy suggest at least two possible pathways to antisocial behaviours. Building on basic studies in cognitive and affective neuroscience, we provide a focused, non-comprehensive review of work identifying the biopsychological mechanisms involved in these two pathways, with special attention to studies using event-related potential (ERP) methods...
2016: Santé Mentale Au Québec
M John Broulidakis, Graeme Fairchild, Kate Sully, Thomas Blumensath, Angela Darekar, Edmund J S Sonuga-Barke
OBJECTIVE: Conduct disorder (CD) is characterized by impulsive, aggressive, and antisocial behaviors that might be related to deficits in empathy and moral reasoning. The brain's default mode network (DMN) has been implicated in self-referential cognitive processes of this kind. METHOD: This study examined connectivity between key nodes of the DMN in 29 adolescent boys with CD and 29 age- and sex-matched typically developing adolescent boys. The authors ensured that group differences in DMN connectivity were not explained by comorbidity with other disorders by systematically controlling for the effects of substance use disorders (SUDs), attention-deficit/hyperactivity disorder (ADHD) symptoms, psychopathic traits, and other common mental health problems...
September 2016: Journal of the American Academy of Child and Adolescent Psychiatry
Analucia A Alegria, Joaquim Radua, Katya Rubia
OBJECTIVE: Functional magnetic resonance imaging (fMRI) studies in conduct disorder and in oppositional defiant disorder have shown inconsistencies. The aim of this meta-analysis of fMRI studies in disruptive behavior disorders was to establish the most consistent brain dysfunctions and to address task- and subtype-related heterogeneity. METHOD: Web-based publication databases were searched to conduct a meta-analysis of all whole-brain fMRI studies of youths with disruptive behavior disorder or conduct problems up to August 2015...
August 13, 2016: American Journal of Psychiatry
Samuel W Hawes, Amy L Byrd, Rebecca Waller, Donald R Lynam, Dustin A Pardini
BACKGROUND: Studies have demonstrated a robust association between interpersonal callousness (IC) and the development of severe and chronic conduct problems (CP) in youth. Although children exhibiting IC are also believed to be at particularly high risk for developing psychopathic personality features in adulthood, there is little longitudinal evidence supporting this assumption, particularly after controlling for co-occuring CP severity. METHODS: This study used data collected on a longitudinal cohort of boys (n = 508), with an oversampling of youth exhibiting elevated conduct problems...
August 12, 2016: Journal of Child Psychology and Psychiatry, and Allied Disciplines
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