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Functional and dysfunctional impulsivity mediates the relationships between 'Dark Triad' traits and cyberbullying perpetration

Park MS, Billieux J, Raj S, Lee MC, Geoffrey DS, Nuyens F

Crim Behav Ment Health, 2024 Feb;34(1):54-65.
PMID: 38240129 DOI: 10.1002/cbm.2321

BACKGROUND: Cyberbullying perpetration and victimisation have been associated with psychological distress, including depression and suicidal ideation. Prior studies have shown that the 'Dark Triad' personality traits (narcissism, Machiavellianism, and psychopathy) are associated with greater likelihood of perpetration, yet there is a research gap regarding potential mediators of this relationship.
AIMS: To test whether functional and dysfunctional impulsivity act as mediators between Dark Triad traits and cyberbullying perpetration.
METHODS: A cross-sectional online study was conducted, in which a sample of 141 university students (63% male) from Malaysia were recruited by online and local poster advertising inviting them to complete a questionnaire containing a series of psychometric scales, including measures of 'Dark Triad' personality traits, impulsivity and cyberbullying perpetration.
RESULTS: A relationship between cyberbullying perpetration and higher psychopathy scale scores was mediated by dysfunctional, but not functional, impulsivity. The relationship between cyberbullying and narcissism scores was not mediated by impulsivity. Higher Machiavellianism scores were similarly associated with cyberbullying, but there was no correlation at all between Machiavellianism and impulsivity scores.
CONCLUSION: Our findings add to the literature by showing that not only Dark Triad scale scores are associated with cyberbullying, but that difficulty in refraining from or controlling impulsive behaviours (dysfunctional impulsivity) may be a key component in this relationship. Given that our sample was of generally well-functioning people, our findings may not extend to those with serious cyberbullying problems. Yet, they provide avenues for identifying people at risk of such behaviours before problems become well-established and call for more nuanced approaches towards understanding and intervening with problematic cyberbullying.

Matched MeSH terms: Antisocial Personality Disorder/psychology
On the epidemicity of Amok violence

Westermeyer J

Arch. Gen. Psychiatry, 1973 Jun;28(6):873-6.
PMID: 4707993
Matched MeSH terms: Antisocial Personality Disorder/epidemiology*
Brain activity elicited by reward and reward omission in individuals with psychopathic traits: An ERP study

Salim MA, van der Veen FM, van Dongen JD, Franken IH

Biol Psychol, 2015 Sep;110:50-8.
PMID: 26188154 DOI: 10.1016/j.biopsycho.2015.07.001

Psychopathy has been associated with behavioral adaptation deficits, which might be associated with problems in feedback and reward processing. In the present study, we examined the relation between psychopathic traits and reward processing in a passive gambling task. A total of 39 male participants who scored high (HP) and 39 male participants who scored low (LP) on the Triarchic Psychopathy Measure (TriPM), total score were tested. Feedback-related Event-Related Potentials (ERPs; i.e., P2, FRN, and P3) on predicted and unpredicted rewards and reward omissions were compared between both groups. It was found that in HP individuals, the P2 was enhanced for predicted rewards and reward omissions, but not for unpredicted stimuli. Moreover, HP individuals as compared to the LP individuals demonstrated a generally reduced P3 amplitude. The FRN amplitude, however, did not differ between the two groups. In addition, HP individuals showed enhanced reward sensitivity on the self-report level. Taken together, these findings suggest that HP individuals show enhanced sensitivity to early and reduced sensitivity to later markers of processing reinforcement learning signals, which points in the direction of compromised behavioral adaptation.

Matched MeSH terms: Antisocial Personality Disorder/physiopathology*
Psychiatric morbidity in the first-degree relatives of schizophrenic patients

Varma SL, Zain AM, Singh S

Am. J. Med. Genet., 1997 Feb 21;74(1):7-11.
PMID: 9033998

There is increasing evidence that genetic factors play a role in the etiology of schizophrenic disorders. One thousand eighty-nine first-degree relatives of schizophrenics and 1,137 controls were studied to discover their psychiatric morbidity. Psychiatric morbidity was found in 16.34% of the first-degree relatives (FDR) of schizophrenics (parents, 5.69%; siblings, 7.71%; offspring, 2.94%) as compared to 6.9% in the controls (P < 0.001). Schizophrenia was found in 8.3% of the patient group, which was significantly higher (0.2%) as compared to the controls. Schizoid-schizotypal personality disorder was found in 3.03% of FDRs of the schizophrenic group. Depressive disorder was found in 4.4% and 2.1% in the control and patient group, respectively, which was statistically significant. Morbidity risk of schizophrenia was found in 16.97%, 6.22% and 5.79% of schizophrenia, schizoid-schizotypal personality disorder and depressive disorder, respectively, in the FDR of schizophrenic group.

Matched MeSH terms: Antisocial Personality Disorder/etiology; Antisocial Personality Disorder/epidemiology
Classification of amok in DSM-IV

Gaw AC, Bernstein RL

Hosp Community Psychiatry, 1992 Aug;43(8):789-93.
PMID: 1427677

Culture-bound syndromes have been described worldwide in many individuals and, for certain syndromes, in epidemic proportion, yet these disorders have been classified as rare and exotic conditions warranting minimal attention. Development of the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders and the tenth edition of the International Classification of Diseases offers an opportunity for providing a more sophisticated classification of these phenomena. The authors examine amok, a syndrome first described in Malaysia that consists of homicidal frenzy preceded by a state of brooding and ending with somnolence and amnesia. They discuss the concept of and criteria for a culture-specific disorder and propose that amok be classified as a culture-specific explosive behavioral disorder in DSM-IV.

Matched MeSH terms: Antisocial Personality Disorder/classification*; Antisocial Personality Disorder/diagnosis; Antisocial Personality Disorder/psychology
Fulltext A case of clinical vampirism in asia

Phang, C.K., Kayatri, S., Ang, J.K.

Malaysian Journal of Medicine and Health Sciences, 2013;9(1):87-89.
MyJurnal

Clinical vampirism in psychiatric practice is very rare and usually associated with schizophrenia, antisocial personality disorder or paraphilia. An Asian case of clinical vampirism is described. It is about a 24-year-old Malay female, paramedic student, who craved for blood since childhood. She injured her sister and herself so that she could access and drink blood. There was no associated psychosis or medical problems. The craving for blood may represent her underlying craving for parental love and attention.

Matched MeSH terms: Antisocial Personality Disorder
Fulltext Psychiatric disorders among young male adult prisoners: a cross sectional study in a Malaysian prison

Azlin, B., Salina Akhtar, M. Y., Nik Ruzyanei, N. J., Hazli, Z., Normala, I.

Malaysian Journal of Medicine and Health Sciences, 2010;6(2):65-70.
MyJurnal

Introduction: In recent years there has been an increase in the number of young people in prison. This
study is the first to look at the proportion of psychiatric disorders among young adult prisoners. Objective: The main objective is to determine the percentage of psychiatric disorders among young adult male prisoners Method: A cross sectional study of young adult male prisoners, with ages ranged between 18 and 21 years old, was conducted between September and December, 2008 at the Kajang Prison. A total of 225 inmates participated in the study which used the Mini International Neuropsychiatric Interview (M.I.N.I) as its instrument. Results: The percentage of psychiatric disorders was 60.0%. Alcohol and substance related disorders had the highest prevalence at 50.2%, followed by Major Depressive Disorders and Dysthymia at 16.9%. About 39.6% were observed to have antisocial personality disorder. Psychiatric disorders were found to have significant differences (p

Matched MeSH terms: Antisocial Personality Disorder
Fulltext An exploratory study on symptoms of problem behaviors among juvenile offenders

Abdul Rahman Ahmad B, Rozainee K, Khaidzir I, Wan Shahrazad Wan S

Jurnal Psikologi Malaysia, 2016;30:69-79.

This study examined different types of symptoms of problem behaviours among juvenile offenders. Various symptoms of problem behaviours such as social problem, thinking problem, attention problem, rule-breaking behaviour, and aggressive behaviour can be predicted among young juvenile delinquents. There were 404 juvenile offenders participated in the study, consisted of 280 males and 124 females. All respondents convicted with seven different offenses. Prior to that, three research questions were developed: 1. Are there differences in the symptoms of problem behaviours among different types of juvenile offenders? 2. Are there gender differences in the symptoms of problem behaviours among young offenders? 3. Are there any age differences in the symptoms of problem behaviours among juvenile offenders? The results showed there were different symptoms of problem behaviours among young offenders. Gender differences profile also showed mean differences in each symptom of problem behaviours among juvenile offenders. One-way ANOVA results showed significant differences in thought problem F (7) = 2.748, p< .01 and attention problem F (7) = 25.948, p < .01 among different types of delinquent behaviours. Moreover, t-test results revealed that gender differences were significant in social problem; t (402) = -2.710, p

Matched MeSH terms: Antisocial Personality Disorder
Psychiatric comorbidity among patients on methadone maintenance therapy and its influence on quality of life

Teoh Bing Fei J, Yee A, Habil MH

Am J Addict, 2016 Jan;25(1):49-55.
PMID: 26692463 DOI: 10.1111/ajad.12317

BACKGROUND AND OBJECTIVES: Co-occurring psychiatric disorders are among the difficulties faced by patients with opioid dependence on methadone maintenance therapy (MMT). This study aims to assess the prevalence of psychiatric comorbidity among patients on MMT, the factors predicting psychiatric comorbidity and to examine the association between psychiatric comorbidity and quality of life.
METHODS: A total of 225 male patients on MMT in a tertiary hospital in Malaysia were assessed for psychiatric comorbidity and substance use disorders using the Mini-International Neuropsychiatric Interview (MINI) and Opiate Treatment Index (OTI). Their quality of life was assessed using World Health Organization Quality of Life (WHOQOL)-BREF.
RESULTS: The prevalence of a current and lifetime non-substance use Axis I psychiatric disorder was 14.2% and 15.6% respectively, while 14.7% fulfilled the criteria for antisocial personality disorder. 80.9% had comorbid substance dependence, predominantly nicotine dependence. Factors significantly associated with a non-substance use Axis I psychiatric disorder on multivariate analysis were use of psychiatric medications, antisocial personality disorder and poorer physical health. Patients with a non-substance use Axis I psychiatric disorder had a significantly poorer quality of life in all domains namely physical health, psychological, social relationships, environment as well as combined quality of life and general health after controlling for possible confounders.
CONCLUSION: Psychiatric comorbidity among patients on MMT negatively impacts quality of life.
SCIENTIFIC SIGNIFICANCE: The detection of psychiatric disorders and provision of appropriate treatment is needed to improve the quality of life of patients on MMT.

Matched MeSH terms: Antisocial Personality Disorder/epidemiology
Fulltext Factorial validation of “how i think” questionnaire among male inmates in Malaysia

Mohammad Rahim, K., Nadiah Syariani, M.S., Azizah, O., Geshina Ayu, M.S.

Malaysian Journal of Psychiatry, 2013;22(2):19-31.
MyJurnal

Introduction: Cognitive distortion seems to be a potential force in shaping criminals and antisocial behaviour within an individual. Unfortunately there is no valid Malay psychometric instrument available to measure cognitive distortion in Malaysian settings, especially in prisons. There is an urgent need to have a valid and reliable Malay psychometric instrument to assess the cognitive distortion among Malaysians. Therefore, the present study aimed to validate “How I Think” Questionnaire into the Malay language (henceforth, HIT-M). Methods: A cross-sectional study was conducted among inmates (n= 150) incarcerated within two prisons in Peninsular Malaysia. The validation study commenced with Forward-Backward translations and was followed by content and face validities. Later, construct validity was
performed via Exploratory Factor Analysis using Principal Component Analysis. Varimax rotation was applied in order to optimize the factor loadings on the extracted component. Finally, reliability testing was
performed to determine the internal consistency of the items which was done using Cronbach Alpha coefficient method (α). Findings: Initial factor loadings resulted in 11 factors with a total variance of 74.1%. Next, factor analysis was repeated by extracting the items into a four factor structure parallel to the theoretical construct. Items with factor loadings above 0.40 were retained as acceptable factor loadings. After considering factor loadings, item correlation and content of items, the final version of HIT-M consisted of 24 items. The internal consistency of HIT-M was 0.90 which was considered good. Conclusion: HIT-M is a valid and reliable psychometric instrument to measure and assess cognitive distortion among Malaysians.

Matched MeSH terms: Antisocial Personality Disorder