On Mental Health Friday, we post, in alphabetical order, one per week, information on mental health disorders. Mental Health Friday is for informational purposes only, and is in no way meant to diagnose, treat or cure any disease. Please do not self diagnose and seek professional help for what ails you.
Today’s Topic: Conduct Disorder
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Conduct disorder (CD) is a mental disorder diagnosed in childhood or adolescence that presents itself through a repetitive and persistent pattern of behavior that includes theft, lies, physical violence that may lead to destruction and wanton breaking of rules,[1] in which the basic rights of others or major age-appropriate norms are violated. These behaviors are often referred to as “antisocial behaviors.”[2] It is often seen as the precursor to antisocial personality disorder, which by definition cannot be diagnosed until the individual is 18 years old.[3] Conduct disorder may result from parental rejection and neglect and can be treated with family therapy, as well as behavioral modifications and pharmacotherapy.[4] Conduct disorder is estimated to affect 51.1 million people globally as of 2013.[5]
Signs and symptoms
One of the symptoms of conduct disorder is a lower level of fear. Research performed on the impact of toddlers exposed to fear and distress shows that negative emotionality (fear) predicts toddlers’ empathy-related response to distress. The findings support that if a caregiver is able to respond to infant cues, the toddler has a better ability to respond to fear and distress. If a child does not learn how to handle fear or distress the child will be more likely to lash out at other children. If the caregiver is able to provide therapeutic intervention teaching children at risk better empathy skills, the child will have a lower incident level of conduct disorder.[6]
Increased instances of violent and antisocial behavior are also associated with the condition;[7] examples may range from pushing, hitting and biting when the child is young, progressing towards beating and inflicted cruelty as the child becomes older.[8][9]
Conduct disorder can present with limited prosocial emotions, lack of remorse or guilt, lack of empathy, lack of concern for performance, and shallow or deficient affect. Symptoms vary by individual, but the four main groups of symptoms are described below.[10]
Aggression to people and animals
- Often bullies, threatens or intimidates others
- Often initiates physical fights
- Has used a weapon that can cause serious physical harm to others (e.g., a bat, brick, broken bottle, knife, gun)
- Has been physically cruel to people
- Has been physically cruel to animals
- Has stolen while confronting a victim (e.g., mugging, purse snatching, extortion, armed robbery)
- Has forced someone into sexual activity (rape or molestation)[10]
- Feels no remorse or empathy towards the harm, fear, or pain they may have inflicted on others
Destruction of property
- Has deliberately engaged in fire setting with the intention of causing serious damage
- Has deliberately destroyed others’ property (other than by fire setting)[10]
Deceitfulness or theft
- Has broken into someone else’s house, building, or car
- Often lies to obtain goods or favors or to avoid obligations (i.e., “cons” others)
- Has stolen items of nontrivial value without confronting a victim (e.g., shoplifting, but without breaking and entering; forgery)[10]
Serious violations of rules
- Often stays out at night despite parental prohibitions, beginning before age 13 years
- Has run away from home overnight at least twice while living in parental or parental surrogate home (or once without returning for a lengthy period)
- Is often truant from school, beginning before age 13 years[10]
The lack of empathy these individuals have and the aggression that accompanies this carelessness for the consequences is dangerous- not only for the individual but for those around them. [11]
Developmental course
Currently, two possible developmental courses are thought to lead to conduct disorder. The first is known as the “childhood-onset type” and occurs when conduct disorder symptoms are present before the age of 10 years. This course is often linked to a more persistent life course and more pervasive behaviors. Specifically, children in this group have greater levels of ADHD symptoms, neuropsychological deficits, more academic problems, increased family dysfunction and higher likelihood of aggression and violence.[12]
There is debate among professionals regarding the validity and appropriateness of diagnosing young children with conduct disorder. The characteristics of the diagnosis are commonly seen in young children who are referred to mental health professionals.[13] A premature diagnosis made in young children, and thus labeling and stigmatizing an individual, may be inappropriate. It is also argued that some children may not in fact have conduct disorder, but are engaging in developmentally appropriate disruptive behavior.
The second developmental course is known as the “adolescent-onset type” and occurs when conduct disorder symptoms are present after the age of 10 years. Individuals with adolescent-onset conduct disorder exhibit less impairment than those with the childhood-onset type and are not characterized by similar psychopathology.[14] At times, these individuals will remit in their deviant patterns before adulthood. Research has shown that there is a greater number of children with adolescent-onset conduct disorder than those with childhood-onset, suggesting that adolescent-onset conduct disorder is an exaggeration of developmental behaviors that are typically seen in adolescence, such as rebellion against authority figures and rejection of conventional values.[12] However, this argument is not established[15] and empirical research suggests that these subgroups are not as valid as once thought.[2]
In addition to these two courses that are recognized by the DSM-IV-TR, there appears to be a relationship among oppositional defiant disorder, conduct disorder, and antisocial personality disorder. Specifically, research has demonstrated continuity in the disorders such that conduct disorder is often diagnosed in children who have been previously diagnosed with oppositional defiant disorder, and most adults with antisocial personality disorder were previously diagnosed with conduct disorder. For example, some research has shown that 90% of children diagnosed with conduct disorder had a previous diagnosis of oppositional defiant disorder.[16] Moreover, both disorders share relevant risk factors and disruptive behaviors, suggesting that oppositional defiant disorder is a developmental precursor and milder variant of conduct disorder. However, this is not to say that this trajectory occurs in all individuals. In fact, only about 25% of children with oppositional defiant disorder will receive a later diagnosis of conduct disorder.[16]Correspondingly, there is an established link between conduct disorder and the diagnosis of antisocial personality disorder as an adult. In fact, the current diagnostic criteria for antisocial personality disorder require a conduct disorder diagnosis before the age of 15.[17] However, again, only 25-40% of youths with conduct disorder will develop an antisocial personality disorder.[18] Nonetheless, many of the individuals who do not meet full criteria for antisocial personality disorder still exhibit a pattern of social and personal impairments or antisocial behaviors.[19] These developmental trajectories suggest the existence of antisocial pathways in certain individuals,[2] which have important implications for both research and treatment.
Associated conditions
Children with conduct disorder have a high risk of developing other adjustment problems. Specifically, risk factors associated with conduct disorder and the effects of conduct disorder symptomatology on a child’s psychosocial context have been linked to overlapping with other psychological disorders.[20] In this way, there seems to be reciprocal effects of comorbidity with certain disorders, leading to increased overall risk for these youth.
Attention deficit hyperactivity disorder
ADHD is the condition most commonly associated with conduct disorders, with approximately 25-30% of boys and 50-55% of girls with conduct disorder having a comorbid ADHD diagnosis.[21] While it is unlikely that ADHD alone is a risk factor for developing conduct disorder, children who exhibit hyperactivity and impulsivity along with aggression is associated with the early onset of conduct problems.[2] Moreover, children with comorbid conduct disorder and ADHD show more severe aggression.[21]
Substance use disorders
Conduct disorder is also highly associated with both substance use and abuse. Children with conduct disorder have an earlier onset of substance use, as compared to their peers, and also tend to use multiple substances.[22] However, substance use disorders themselves can directly or indirectly cause conduct disorder like traits in about half of adolescents who have a substance use disorder.[23] As mentioned above, it seems that there is a transactional relationship between substance use and conduct problems, such that aggressive behaviors increase substance use, which leads to increased aggressive behavior.[24]
Substance use in conduct disorder can lead to antisocial behavior in adulthood.[25]
Schizophrenia
Conduct disorder is a precursor to schizophrenia in a minority of cases,[26] with about 40% of men and 31% of women with schizophrenia meeting criteria for childhood conduct disorder.[27]
Cause
While the cause of conduct disorder is complicated by an intricate interplay of biological and environmental factors, identifying underlying mechanisms is crucial for obtaining accurate assessment and implementing effective treatment.[28] These mechanisms serve as the fundamental building blocks on which evidence-based treatments are developed. Despite the complexities, several domains have been implicated in the development of conduct disorder including cognitive variables, neurological factors, intraindividual factors, familial and peer influences, and wider contextual factors.[2] These factors may also vary based on the age of onset, with different variables related to early (e.g., neurodevelopmental basis) and adolescent (e.g., social/peer relationships) onset.[29]
Risks
The development of conduct disorder is not immutable or predetermined. A number of interactive risk and protective factors exist that can influence and change outcomes, and in most cases conduct disorder develops due to an interaction and gradual accumulation of risk factors.[30] In addition to the risk factors identified under cause, several other variables place youth at increased risk for developing the disorder, including child physical abuse,[30] in-utero alcohol exposure, and maternal smoking during pregnancy.[31]Protective factors have also been identified, and most notably include high IQ, being female, positive social orientations, good coping skills, and supportive family and community relationships.[32]
However, a correlation between a particular risk factor and a later developmental outcome (such as conduct disorder) cannot be taken as definitive evidence for a causal link. Co-variation between two variables can arise, for instance, if they represent age-specific expressions of similar underlying genetic factors.[33] There have been studies that found that, although smoking during pregnancy does contribute to increased levels of antisocial behaviour, in mother-fetus pairs that were not genetically related (by virtue of in-vitro fertilisation), no link between smoking during pregnancy and later conduct problems was found. Thus, the distinction between causality and correlation is an important consideration.[34]
Learning disabilities
While language impairments are most common,[20] approximately 20-25% of youth with conduct disorder have some type of learning disability.[35] Although the relationship between the disorders is complex, it seems as if learning disabilities result from a combination of ADHD, a history of academic difficulty and failure, and long-standing socialization difficulties with family and peers.[36] However, confounding variables, such as language deficits, SES disadvantage, or neurodevelopmental delay also need to be considered in this relationship, as they could help explain some of the association between conduct disorder and learning problems.[2]
Cognitive factors
In terms of cognitive function, intelligence and cognitive deficits are common amongst youths with conduct disorder, particularly those with early-onset and have intelligence quotients (IQ) one standard deviation below the mean[37] and severe deficits in verbal reasoning and executive function.[38] Executive function difficulties may manifest in terms of one’s ability to shift between tasks, plan as well as organize, and also inhibit a prepotent response. These findings hold true even after taking into account other variables such as socioeconomic status (SES), and education. However, IQ and executive function deficits are only one piece of the puzzle, and the magnitude of their influence is increased during transactional processes with environmental factors.[39]
Brain differences
Beyond difficulties in executive function, neurological research on youth with conduct disorder also demonstrate differences in brain anatomy and function that reflect the behaviors and mental anomalies associated in conduct disorder. Compared to normal controls, youths with early and adolescent onset of conduct disorder displayed reduced responses in brain regions associated with social behavior (i.e., amygdala, ventromedial prefrontal cortex, insula, and orbitofrontal cortex).[29] In addition, youths with conduct disorder also demonstrated less responsiveness in the orbitofrontal regions of the brain during a stimulus-reinforcement and reward task.[40] This provides a neural explanation for why youths with conduct disorder may be more likely to repeat poor decision making patterns. Lastly, youths with conduct disorder display a reduction in grey matter volume in the amygdala, which may account for the fear conditioning deficits.[41] This reduction has been linked to difficulty processing social emotional stimuli, regardless of the age of onset.[42] Aside from the differences in neuroanatomy and activation patterns between youth with conduct disorder and controls, neurochemical profiles also vary between groups.[43] Individuals with conduct disorder are characterized as having reduced serotonin and cortisol levels (e.g., reduced hypothalamic-pituitary-adrenal (HPA) axis), as well as reduced autonomic nervous system (ANS) functioning. These reductions are associated with the inability to regulate mood and impulsive behaviors, weakened signals of anxiety and fear, and decreased self-esteem.[43] Taken together, these findings may account for some of the variance in the psychological and behavioral patterns of youth with conduct disorder.
Intra-individual factors
Aside from findings related to neurological and neurochemical profiles of youth with conduct disorder, intraindividual factors such as genetics may also be relevant. Having a sibling or parent with conduct disorder increases the likelihood of having the disorder, with a heritability rate of .53.[44] There also tends to be a stronger genetic link for individuals with childhood-onset compared to adolescent onset.[45] In addition, youth with conduct disorder also exhibit polymorphism in the monoamine oxidase A gene,[46]low resting heart rates,[47] and increased testosterone.[48]
Family and peer influences
Elements of the family and social environment may also play a role in the development and maintenance of conduct disorder. For instance, antisocial behavior suggestive of conduct disorder is associated with single parent status, parental divorce, large family size, and the young age of mothers.[2] However, these factors are difficult to tease apart from other demographic variables that are known to be linked with conduct disorder, including poverty and low socioeconomic status. Family functioning and parent-child interactions also play a substantial role in childhood aggression and conduct disorder, with low levels of parental involvement, inadequate supervision, and unpredictable discipline practices reinforcing youth’s defiant behaviors. Peer influences have also been related to the development of antisocial behavior in youth, particularly peer rejection in childhood and association with deviant peers.[2] Peer rejection is not only a marker of a number of externalizing disorders, but also a contributing factor for the continuity of the disorders over time. Hinshaw and Lee (2003)[2] also explain that association with deviant peers has been thought to influence the development of conduct disorder in two ways: 1) a “selection” process whereby youth with aggressive characteristics choose deviant friends, and 2) a “facilitation” process whereby deviant peer networks bolster patterns of antisocial behavior. In a separate study by Bonin and colleagues, parenting programs were shown to positively affect child behavior and reduce costs to the public sector.[49]
Wider contextual factors
In addition to the individual and social factors associated with conduct disorder, research has highlighted the importance of environment and context in youth with antisocial behavior.[2] However, it is important to note that these are not static factors, but rather transactional in nature (e.g., individuals are influenced by and also influence their environment). For instance, neighborhood safety and exposure to violence have been studied in conjunction with conduct disorder, but it is not simply the case that youth with aggressive tendencies reside in violent neighborhoods. Transactional models propose that youth may resort to violence more often as a result of exposure to community violence, but their predisposition towards violence also contributes to neighborhood climate.
Diagnosis
Conduct disorder is classified in the fourth edition of Diagnostic and Statistical Manual of Mental Disorders (DSM).[17] It is diagnosed based on a prolonged pattern of antisocial behaviour such as serious violation of laws and social norms and rules in people younger than the age of 18. Similar criteria are used in those over the age of 18 for the diagnosis of antisocial personality disorder.[50] No proposed revisions for the main criteria of conduct disorder exist in the DSM-5; there is a recommendation by the work group to add an additional specifier for callous and unemotional traits.[51] According to DSM-5 criteria for conduct disorder, there are four categories that could be present in the child’s behavior: aggression to people and animals, destruction of property, deceitfulness or theft, and serious violation of rules.[52]
Almost all adolescents who have a substance use disorder have conduct disorder-like traits, but after successful treatment of the substance use disorder, about half of these adolescents no longer display conduct disorder-like symptoms. Therefore, it is important to exclude a substance-induced cause and instead address the substance use disorder prior to making a psychiatric diagnosis of conduct disorder.[23]
Treatment
First-line treatment is psychotherapy based on behavior modification and problem-solving skills. This treatment seeks to integrate individual, school, and family settings. Parent-management training can also be helpful. No medications have been FDA approved for Conduct Disorder, but risperidone (a second-generation antipsychotic) has the most evidence to support its use for aggression in children who have not responded to behavioral and psychosocial interventions. Selective Serotonin Reuptake Inhibitors (SSRIs) are also sometimes used to treat irritability in these patients.
Prognosis
About 25-40% of youths diagnosed with conduct disorder qualify for a diagnosis of antisocial personality disorder when they reach adulthood. For those that do not develop ASPD, most still exhibit social dysfunction in adult life.[18]
Epidemiology
Conduct disorder is estimated to affect 51.1 million people globally as of 2013.[5] The percentage of children affected by conduct disorder is estimated to range from 1-10%.[2]However, among incarcerated youth or youth in juvenile detention facilities, rates of conduct disorder are between 23% and 87%.[53]
Sex differences
The majority of research on conduct disorder suggests that there are a significantly greater number of males than females with the diagnosis, with some reports demonstrating a threefold to fourfold difference in prevalence.[54] However, this difference may be somewhat biased by the diagnostic criteria which focus on more overt behaviors, such as aggression and fighting, which are more often exhibited by males. Females are more likely to be characterized by covert behaviors, such as stealing or running away. Moreover, conduct disorder in females is linked to several negative outcomes, such as antisocial personality disorder and early pregnancy,[55] suggesting that sex differences in disruptive behaviors need to be more fully understood.
Females are more responsive to peer pressure[56] including feelings of guilt[57] than males.
Racial differences
Research on racial or cultural differences on the prevalence or presentation of conduct disorder is limited. However, according to studies on American youth, it appears that African-American youth are more often diagnosed with conduct disorder,[58] while Asian-American youth are about one-third as likely[59] to develop conduct disorder when compared to White American youth. It has been widely theorized for decades that this disparity is due to unconscious bias in those who give the diagnosis.[60]
Source: Wikipedia under Creative Commons License.
References
Citations
- ^ Barzman, D (2017). “Conduct disorder and Its Clinical Management”. The Lecturio Medical Concept Library. DeckerMed Medicine. Retrieved June 24, 2021.
- ^ Jump up to:a b c d e f g h i j k Hinshaw, S. P.; Lee, S. S. (2003). Conduct and oppositional defiant disorders: Child psychopathology (E. J. Mash & R. A. Barkley ed.). New York: Guilford Press. pp. 144–198.
- ^ American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Arlington, VA: American Psychiatric Publishing. pp. 659. ISBN 978-0-89042-555-8.
- ^ Mohan, L; Yilanli, M; Ray, S (2020). “Conduct disorder”. National Center for Biotechnology Information, U.S. National Library of Medicine. StatPearls Publishing LLC. Retrieved June 24, 2021.
- ^ Jump up to:a b Global Burden of Disease Study 2013, Collaborators (5 June 2015). “Global, Regional, and National Incidence, Prevalence, and Years Lived with Disability for 301 Acute and Chronic Diseases and Injuries in 188 Countries, 1990-2013: a Systematic Analysis for the Global Burden of Disease Study 2013”. Lancet. 386 (9995): 743–800. doi:10.1016/S0140-6736(15)60692-4. PMC 4561509. PMID 26063472.
{{cite journal}}
:|first1=
has generic name (help) - ^ Spinrad, Tracy, and Cynthia Stifter. “Toddlers’ Empathy-Related Responding to Distress: Predictions from Negative Emotionality and Maternal Behavior in Infancy.” Infancy 10(2), 97-121, n.d. Web
- ^ “Conduct Disorder Basics”. Child Mind Institute. Retrieved 2019-06-21.
- ^ “Behavioural problems and conduct disorder: for parents and carers”. RC PSYCH ROYAL COLLEGE OF PSYCHIATRISTS. Retrieved 2019-06-21.
- ^ MYERS, WADE C.; SCOTT, KERRILYN (1998-05-01). “Psychotic and Conduct Disorder Symptoms in Juvenile Murderers”. Homicide Studies. 2 (2): 160–175. doi:10.1177/1088767998002002004. ISSN 1088-7679. S2CID 145559982.
- ^ Jump up to:a b c d e Substance Abuse and Mental Health Services Administration (US) (2016-06-01). “Table 17, DSM-IV to DSM-5 Conduct Disorder Comparison”. www.ncbi.nlm.nih.gov. Retrieved 2020-08-16. This article incorporates text from this source, which is in the public domain.
- ^ “Conduct Disorder: Definition, Symptoms, and Treatment Options”. Psycom.net – Mental Health Treatment Resource Since 1996. Retrieved 2021-03-20.
- ^ Jump up to:a b Moffitt T.E. (1993). “Life-course persistent” and “adolescence-limited” antisocial behavior: A developmental taxonomy”. Psychological Review. 100 (4): 674–701. doi:10.1037/0033-295x.100.4.674. PMID 8255953.
- ^ Volkmar F (2002). “Considering disruptive behaviors”. Am J Psychiatry. 159 (3): 349–350. doi:10.1176/appi.ajp.159.3.349. PMID 11869994.
- ^ Moffitt T.E.; Caspi A. (2001). “Childhood predictors differentiate life-course life-course persistent and adolescence-limited antisocial pathways among males and females”. Development and Psychopathology. 13 (2): 355–375. doi:10.1017/s0954579401002097. PMID 11393651. S2CID 29182035.
- ^ Roisman G. I.; Monahan K. C.; Campbell S. B.; Steinberg L.; Cauffman E.; Early Child Care Research Network (2010). “Is adolescence-onset antisocial behavior developmentally normative?”. Development and Psychopathology. 22 (2): 295–311. doi:10.1017/s0954579410000076. PMID 20423543. S2CID 18497078.
- ^ Jump up to:a b Loeber R.; Keenan K.; Lahey B.B.; Green S.M.; Thomas C. (1993). “Evidence for developmentally based diagnoses of oppositional defiant disorder and conduct disorder”. Journal of Abnormal Child Psychology. 21 (4): 377–410. doi:10.1007/bf01261600. PMID 8408986. S2CID 43444052.
- ^ Jump up to:a b American Psychiatric Association. (2000). Diagnostic and Statistical Manual of Mental Disorders (4th ed., text revision). Washington, DC: Author.
- ^ Jump up to:a b Zocccolillo M.; Pickles A.; Quinton D.; Rutter M. (1992). “The outcome of conduct disorder: Implications for defining adult personality disorder and conduct disorder”. Psychological Medicine. 22 (4): 971–986. doi:10.1017/s003329170003854x. PMID 1488492.
- ^ Rutter M (1989). “Pathways from childhood to adult life”. Journal of Child Psychology and Psychiatry. 30 (1): 25–51. doi:10.1111/j.1469-7610.1989.tb00768.x. PMID 2647779.
- ^ Jump up to:a b McMahon R. J.; Frick P. J. (2005). “Evidenced-based assessment of conduct problems in children and adolescents”. Journal of Clinical Child and Adolescent Psychology. 34 (3): 477–505. doi:10.1207/s15374424jccp3403_6. PMID 16026215. S2CID 39028273.
- ^ Jump up to:a b Waschbusch D. A. (2002). “A meta-analytic evaluation of comorbid hyperactive-impulsive-inattention problems and conduct problems”. Psychological Bulletin. 128 (1): 118–150. doi:10.1037/0033-2909.128.1.118. PMID 11843545.
- ^ Lynskey M. T.; Fergusson D. M. (1995). “Childhood conduct problems, attention deficit behaviors, and adolescent alcohol, tobacco, and illicit drug use”. Journal of Abnormal Child Psychology. 23 (3): 281–302. doi:10.1007/bf01447558. PMID 7642838. S2CID 40789985.
- ^ Jump up to:a b Brown, SA.; Gleghorn, A.; Schuckit, MA.; Myers, MG.; Mott, MA. (May 1996). “Conduct disorder among adolescent alcohol and drug abusers”. J Stud Alcohol. 57 (3): 314–24. doi:10.15288/jsa.1996.57.314. PMID 8709590.
- ^ White H.R.; Loeber R.; Stouthamer-Loeber M.; Farrington D.P. (1999). “Developmental associations between substance use and violence”. Development and Psychopathology. 11 (4): 785–803. doi:10.1017/s0954579499002321. PMID 10624726. S2CID 9357010.
- ^ Khalifa, N; Duggan, C; Howard, R; Lumsden, J (October 2012). “The relationship between childhood conduct disorder and adult antisocial behavior is partially mediated by early-onset alcohol abuse”. Personality Disorders. 3 (4): 423–32. doi:10.1037/a0027017. PMID 22888992.
- ^ Schiffer, Boris; Leygraf, Norbert; Muller, Bernhard; Scherbaum, Norbert; Forsting, Michael; Wiltfang, Jens; Gizewski, Elke; Hodgins, Sheilagh (September 2012). “Structural Brain Alterations Associated With Schizophrenia Preceded by Conduct Disorder: A Common and Distinct Subtype of Schizophrenia?”. Schizophrenia Bulletin. 39 (5): 1115–1128. doi:10.1093/schbul/sbs115. PMC 3756783. PMID 23015687.
- ^ Dalteg, Arne; Zandelin, Anders; Tuninger, Eva; Levander, Sten (2014). “Psychosis in adulthood is associated with high rates of ADHD and CD problems during childhood”. Nordic Journal of Psychiatry. 68 (8): 560–566. doi:10.3109/08039488.2014.892151. PMID 24620816. S2CID 46031432.
- ^ Murrihy, R., Kidman, A., & Ollendick, T (2010). Clinical Handbook of Assessing and Treating Conduct Problems in Youth. Springer: New York.
- ^ Jump up to:a b Passamonti L.; Fairchild G.; Goodyer I.; Hurford G.; Hagan C.; Rowe J.; Calder A. (2010). “Neural abnormalities in early-onset and adolescence-onset conduct disorder”. Archives of General Psychiatry. 67 (7): 729–738. doi:10.1001/archgenpsychiatry.2010.75. PMC 4471104. PMID 20603454.
- ^ Jump up to:a b Murray J.; Farrington D. P. (2010). “Risk factors for conduct disorder and delinquency: Key findings from longitudinal studies”. The Canadian Journal of Psychiatry. 55 (10): 633–642. doi:10.1177/070674371005501003. PMID 20964942.
- ^ Larkby C. A.; Goldschmidt L.; Hanusa B. H.; Day N. L. (2011). “Prenatal alcohol exposure is associated with conduct disorder in adolescence: Findings from a birth cohort”. Journal of the American Academy of Child and Adolescent Psychiatry. 50 (3): 262–271. doi:10.1016/j.jaac.2010.12.004. PMC 3042714. PMID 21334566.
- ^ Bassarath L (2001). “Conduct disorder: A biopsychosocial review”. The Canadian Journal of Psychiatry. 46 (7): 609–616. doi:10.1177/070674370104600704. PMID 11582821.
- ^ Rutter M.; Moffi T.; Caspi A. (2006). “Gene–environment interplay and psychopathology: Multiple varieties but real effects”. Journal of Child Psychology and Psychiatry. 47 (3–4): 226–261. doi:10.1111/j.1469-7610.2005.01557.x. PMID 16492258.
- ^ Rice, F.; Harold, T.G.; Boivin, J.; Hay, D.F.; van den Bree, M; Thapar, A. (February 17, 2009). “Disentangling prenatal and inherited influences in humans with an experimental design”. Proceedings of the National Academy of Sciences of the United States of America. 106 (7): 2464–7. Bibcode:2009PNAS..106.2464R. doi:10.1073/pnas.0808798106. PMC 2634805. PMID 19188591.
- ^ Frick P. J.; Kamphaus R. W.; Lahey B. B.; Christ M. A.; Hart E. L.; Tannenbaum T. E. (1991). “the vast majority of these have ADHD. Academic underachievement and the disruptive behavior disorders”. Journal of Consulting and Clinical Psychology. 59 (2): 289–294. doi:10.1037/0022-006x.59.2.289. PMID 2030190.
- ^ Hinshaw S.P. (1992). “Externalizing behavior problems and academic underachievement in childhood adolescence: Causal relationships and underling mechanisms”. Psychological Bulletin. 111 (1): 127–155. doi:10.1037/0033-2909.111.1.127. PMID 1539086.
- ^ Lynham, D. & Henry, B. (2001). The role of neuropsychological deficits in conduct disorders. In J. Hill & B. Maughan (Eds.), Conduct disorders in childhood and adolescence (pp.235-263). New York: Cambridge University Press.
- ^ Moffitt, T. & Lynam, D. (1994). The neuropsychology of conduct disorder and delinquency: Implications for understanding antisocial behavior. In D.C. Fowles, P. Sutker, & S.H. Goodman (Eds.), Progress in experimental personality and psychopathology research (pp. 233-262). New York: Springer.
- ^ Pennington B.; Benneto L. (1993). “Main effects or transactions in the neuropsychology of conduct disorder? Commentary on “The neuropsychology of conduct disorder”. Development and Psychopathology. 5 (1–2): 153–164. doi:10.1017/s0954579400004314.
- ^ Finger E.; Marsh A.; Blair K.; Reid M.; Sims C.; Ng P.; Pine D.; Blair R. (2011). “Disrupted reinforcement signaling in the orbitofrontal cortex and caudate in youths with conduct disorder or oppositional defiant disorder and a high level of psychopathic traits”. American Journal of Psychiatry. 168 (2): 152–162. doi:10.1176/appi.ajp.2010.10010129. PMC 3908480. PMID 21078707.
- ^ Raine A (2011). “An amygdale structural abnormality common to two subtypes of conduct disorder: A neurodevelopmental conundrum”. American Journal of Psychiatry. 168 (6): 569–571. doi:10.1176/appi.ajp.2011.11030416. PMID 21642478.
- ^ Fairchild G.; Passamonti L.; Hurford G.; von dem Hagan C.; Hagen E.; van Goozen S.; Goodyer I.; Calder A. (2011). “Brain structure abnormalities in early-onset and adolscent-onset conduct disorder”. American Journal of Psychiatry. 168 (6): 624–633. doi:10.1176/appi.ajp.2010.10081184. PMID 21454920.
- ^ Jump up to:a b Cappadocia, MC.; Desrocher, M.; Pepler, D.; Schroeder, JH. (Aug 2009). “Contextualizing the neurobiology of conduct disorder in an emotion dysregulation framework”. Clin Psychol Rev. 29 (6): 506–18 v. doi:10.1016/j.cpr.2009.06.001. PMID 19573964.
- ^ Gelhorn H. L.; Stallings M. C.; Young S. E.; Corley R. P.; Rhee S. H.; Hewitt J. K. (2005). “Genetic and environmental influences on conduct disorder: Symptom, domain, and full-scale analyses”. Journal of Child Psychology and Psychiatry. 46 (6): 580–591. doi:10.1111/j.1469-7610.2004.00373.x. PMID 15877764.
- ^ Burt S.; Truger R.; McGue M.; Iacono W. (2001). “Sources of covariation among attention deficit/hyperactivity disorder, oppositional defiant disorder, and conduct disorder: The importance of shared environment”. Journal of Abnormal Psychology. 110(4): 516–525. doi:10.1037/0021-843x.110.4.516. PMID 11727941.
- ^ Foley D. L.; Eaves L. J.; Wormley B.; Silberg J. L.; Maes H. H.; Kuhn J.; Riley B. (2004). “Childhood adversity, monoamine oxidase A genotype, and risk for conduct disorder”. Archives of General Psychiatry. 61 (7): 738–744. doi:10.1001/archpsyc.61.7.738. PMID 15237086.
- ^ Baker L. A.; Tuvblad C.; Reynolds C.; Zheng M.; Lozano D. I.; Raine A. (2009). “Resting heart rate and the development of antisocial behaviour from age 9 to 14: genetic and environmental influences”. Development and Psychopathology. 21 (3): 939–960. doi:10.1017/s0954579409000509. PMC 2756992. PMID 19583891.
- ^ Coie, J. & Dodge, K. (1998). Aggression and antisocial behavior. In W. Damon (Series Ed.) & N. Eisenberg (Vol. Ed.), Handbook of child psychology: Vol.2. Social, emotional, and personality development (5th ed., pp.779-862). New York: Wiley.
- ^ Bonin EM, Stevens M, Beecham J, Byford S, Parsonage M (2011). “Costs and longer-term savings of parenting programmes for the prevention of persistent conduct disorder: a modelling study”. BMC Public Health. 11: 803. doi:10.1186/1471-2458-11-803. PMC 3209459. PMID 21999434.
- ^ Murray J; Farrington DP (Oct 2010). “Risk factors for conduct disorder and delinquency: key findings from longitudinal studies”. Can J Psychiatry. 55 (10): 633–42. doi:10.1177/070674371005501003. PMID 20964942.
- ^ “DSM 5 Development: Conduct Disorder”. American Psychiatric Association. 2010.
- ^ American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders (Fifth ed.). Arlington, VA: American Psychiatric Publishing. pp. 469–470. ISBN 978-0-89042-555-8.
- ^ U.S. Department of Justice. (2006). Psychiatric disorders of youth in detention (NCJ 210331)Washington, DC: U.S. Government Printing Office.
- ^ Lahey, B. B., Miller, T. L., Gordon, R. A., & Riley, A. W. (1999). Developmental epidemiology of disruptive behavior disorders. In H. C. Quay & A. E. Hogan (Eds.), Handbook of disruptive disorders (pp. 23-48). New York: Kluwer Academic/Plenum Publishers.
- ^ Loeber R.; Burke J.D.; Lahey B.B.; Winters A.; Zera M. (2000). “Oppositional defiant and conduct disorder: a review of the past 10 years, part I.”. Journal of the American Academy of Child & Adolescent Psychiatry. 39 (12): 1468–1484. doi:10.1097/00004583-200012000-00007. PMID 11128323. S2CID 33898115.
- ^ Keenan Kate; Loeber Rolf; Green Stephanie (1999). “Conduct Disorder in Girls: A Review of the Literature”. Clinical Child and Family Psychology Review. 2 (1): 3–19. doi:10.1023/A:1021811307364. PMID 11324095. S2CID 38741328.
- ^ Stanger Nicholas; Kavussanu Maria; Ring Christopher (2012). “Put Yourself in Their Boots: Effects of Empathy on Emotion and Aggression”. Journal of Sport & Exercise Psychology. 34 (2): 208–22. doi:10.1123/jsep.34.2.208. PMID 22605362.
- ^ DelBello M. P.; Lopez-Larson M. P.; Soutullo C. A.; Strakowski S. M. (2001). “Effects of race on psychiatric diagnosis of hospitalized adolescents: A retrospective chart review”. Journal of Child and Adolescent Psychopharmacology. 11 (1): 95–103. doi:10.1089/104454601750143528. PMID 11322750.
- ^ Sakai J. T.; Risk N. K.; Tanaka C. A.; Price R. K. (2007). “Conduct disorder among Asians and Native Hawaiian/Pacific Islanders in the USA”. Psychological Medicine. 37(7): 1013–1025. doi:10.1017/s0033291707001316. PMID 17803831. S2CID 16234399.
- ^ Clark, Eddie (Fall 2007). “Conduct Disorders in African American Adolescent Males: The Perceptions That Lead to Overdiagnosis and Placement in Special Programs”(PDF). The Alabama Counseling Association Journal. Troy University at Montgomery. 33(2). Retrieved 28 September 2020 – via files.eric.ed.gov.