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1.
Artigo em Inglês | MEDLINE | ID: mdl-38480986

RESUMO

BACKGROUND: The Sensitivity to Threat and Affiliative Reward (STAR) model proposes low threat sensitivity and low affiliation as risk factors for callous-unemotional (CU) traits. Preliminary evidence for the STAR model comes from work in early childhood. However, studies are needed that explore the STAR dimensions in late childhood and adolescence when severe conduct problems (CP) emerge. Moreover, it is unclear how variability across the full spectrum of threat sensitivity and affiliation gives rise to different forms of psychopathology beyond CU traits. METHODS: The current study addressed these gaps using parent- and child-reported data from three waves and a sub-study of the Adolescent Brain Cognitive Development Study® of 11,878 youth (48% female; ages 9-12). RESULTS: Consistent with the STAR model, low threat sensitivity and low affiliation were independently related to CU traits across informants and time. Moreover, there was significant interaction between the STAR dimensions, such that children with lower sensitivity to threat and lower affiliation had higher parent-reported CU traits. Unlike CU traits, children with higher threat sensitivity had higher parent-reported CP and anxiety. Finally, children with lower affiliation had higher parent-reported CP, anxiety, and depression. Results largely replicated across informants and time, and sensitivity analysis revealed similar findings in children with and without DSM-5 defined CP. CONCLUSIONS: Results support the STAR model hypotheses as they pertain to CU traits and delineate threat sensitivity and affiliation as independent transdiagnostic risk factors for different types of psychopathology. Future research is needed to develop fuller and more reliable and valid measures of affiliation and threat sensitivity across multiple assessment modalities.

2.
Dev Psychopathol ; 36(1): 454-466, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36744529

RESUMO

While many studies have identified risk and protective factors of substance use (SU), few have assessed the reciprocal associations of child conduct problems (CP) and parenting practices and behaviors in the prediction of SU across development. A greater understanding of how these factors relate over time is needed to improve the timing of targeted prevention efforts. This study examined how child CP, parenting behaviors, and parents' own antisocial behavior relate from preschool to adolescence and eventuate in SU. Participants included 706 youth (70.6% male; 89.7% white) enrolled in the Michigan Longitudinal Study. Data from waves 1 (ages 3-5), 2 (ages 6-8), 3 (ages 9-11), 4 (ages 12-14), and 5 (ages 15-17) were included. A random intercept cross-lagged panel model (RI-CLPM) examined reciprocal associations between parenting practices, parents' antisocial behavior, and child CP over time (waves 1-4) and how these factors contribute to adolescent alcohol, cigarette, and marijuana use (wave 5). At the within-person level, negative parenting and parents' own antisocial behavior had a strong influence in late childhood/early adolescence. Only child CP emerged as a significant predictor of SU. Results highlight the importance of early intervention and the potential influence of parenting and child factors throughout development in the prevention of SU.


Assuntos
Comportamento Problema , Transtornos Relacionados ao Uso de Substâncias , Humanos , Criança , Masculino , Adolescente , Pré-Escolar , Feminino , Poder Familiar , Estudos Longitudinais , Pais
3.
J Int Neuropsychol Soc ; 29(8): 715-723, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36775907

RESUMO

OBJECTIVE: Cannabis use has been linked to poorer episodic memory. However, little is known about whether depression and sex may interact as potential moderators of this association, particularly among adolescents. The current study addresses this by examining interactions between depression symptoms and sex on the association between cannabis use and episodic memory in a large sample of adolescents. METHOD: Cross-sectional data from 360 adolescents (M age = 17.38, SD = .75) were analyzed at the final assessment wave of a two-year longitudinal study. We used the Drug Use History Questionnaire to assess for lifetime cannabis use, and the Computerized Diagnostic Interview Schedule for Children, Fourth edition to assess the number of depression symptoms in the past year. Subtests from the Wechsler Memory Scale, Fourth Edition and the California Verbal Learning Test, Second Edition were used to assess episodic memory performance. RESULTS: The effect of the three-way interaction among cannabis use, depression symptoms, and sex did not have a significant impact on episodic memory performance. However, follow-up analyses revealed a significant effect of the two-way interaction of cannabis use and depression symptoms on episodic memory, such that associations between cannabis use and episodic memory were only significant at lower and average levels of depression symptoms. CONCLUSIONS: Contrary to our hypotheses, we found that as depression symptoms increased, the negative association between cannabis use and episodic memory diminished. Given the use of a predominantly subsyndromic sample, future studies should attempt to replicate findings among individuals with more severe depression.


Assuntos
Cannabis , Memória Episódica , Criança , Humanos , Adolescente , Depressão , Estudos Longitudinais , Estudos Transversais , Transtornos da Memória/etiologia
4.
Dev Psychopathol ; : 1-16, 2022 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-36229943

RESUMO

Children with callous-unemotional (CU) traits are at risk for severe conduct problems. While CU traits are moderately heritable, parenting also predicts risk. However, few studies have investigated whether parenting factors (e.g., acceptance, conflict, parental psychopathology) moderate the etiology of CU traits, while accounting for gene-environment correlations. To address this knowledge gap, we used data from 772 twin pairs from the Adolescent Brain and Cognitive Development Study to test bivariate models that explored overlapping etiological influences on CU traits and child reports of their parenting environment. We also used gene-by-environment interaction models to test whether parenting moderated genetic versus environmental influences. There were no overlapping etiological influences on CU traits and parental acceptance, but modest genetic and non-shared environmental overlap between CU traits and family conflict. Parental acceptance and psychopathology moderated non-shared environmental influences, with stronger non-shared environmental influences on CU traits among children who experienced lower parental acceptance and greater parental psychopathology. Family conflict only moderated environmental influences when models did not covary for conduct problems. Parental acceptance and parental psychopathology may be specific environmental protective and risk factors for CU traits, whereas family conflict may represent a general environmental risk factor for both CU traits and conduct problems.

5.
Law Hum Behav ; 46(5): 325-336, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36107689

RESUMO

OBJECTIVE: Should forensic evaluators convey empathy during forensic assessments? Opponents contend that empathy causes harm by leading evaluees to disclose potentially incriminating information, but proponents hold that empathy is crucial for establishing rapport and conveying respect. This study provides a comprehensive examination of experienced forensic evaluators' use of empathy in forensic assessment. HYPOTHESES: The study was exploratory and not hypothesis-driven, but we expected to find identifiable subgroups of evaluators who differed in their use of empathy in the context of a risk assessment interview. We also expected that evaluator subgroups would differ in their attitudes and practices regarding empathy and that higher levels of empathy may be associated with more favorable views of evaluees. METHOD: Experienced forensic evaluators (N = 200) assumed the role of interviewer in a written parole risk assessment interview and chose questions (high or low empathy) they would ask the evaluee if they were conducting the interview. Evaluators also provided ratings of their perceptions of the evaluee and responded to questions regarding their attitudes toward, and use of, empathy in forensic assessment. RESULTS: Latent class analysis results indicated that most evaluators fell into low- (46.0%) or moderate- (43.0%) empathy subgroups, with few falling into a high-empathy subgroup (11.0%). Higher levels of empathy in the interview were associated with attitudes and practices supporting empathy use and higher self-reported understanding of the evaluee, but not with opinions of the evaluee's risk or suitability for parole. CONCLUSIONS: These findings of clear differences in evaluator empathy add to the growing body of research documenting the extent to which forensic evaluators differ in their evaluation styles and tendencies. Although there was support for both very low and very high levels of empathy, support for very high levels of empathy was uncommon. Most evaluators opted for low to moderate empathy. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Empatia , Relações Interpessoais , Humanos , Medição de Risco
6.
Neuroimage ; 239: 118262, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-34147629

RESUMO

The Adolescent Brain Cognitive Development (ABCD) Study is the largest single-cohort prospective longitudinal study of neurodevelopment and children's health in the United States. A cohort of n = 11,880 children aged 9-10 years (and their parents/guardians) were recruited across 22 sites and are being followed with in-person visits on an annual basis for at least 10 years. The study approximates the US population on several key sociodemographic variables, including sex, race, ethnicity, household income, and parental education. Data collected include assessments of health, mental health, substance use, culture and environment and neurocognition, as well as geocoded exposures, structural and functional magnetic resonance imaging (MRI), and whole-genome genotyping. Here, we describe the ABCD Study aims and design, as well as issues surrounding estimation of meaningful associations using its data, including population inferences, hypothesis testing, power and precision, control of covariates, interpretation of associations, and recommended best practices for reproducible research, analytical procedures and reporting of results.


Assuntos
Desenvolvimento do Adolescente , Psicologia do Adolescente , Adolescente , Alcoolismo/epidemiologia , Encéfalo/anatomia & histologia , Encéfalo/crescimento & desenvolvimento , Encéfalo/fisiologia , Área Programática de Saúde , Criança , Cognição/fisiologia , Feminino , Seguimentos , Interação Gene-Ambiente , Humanos , Masculino , Modelos Neurológicos , Modelos Psicológicos , Tamanho do Órgão , Pais/psicologia , Pontuação de Propensão , Estudos Prospectivos , Reprodutibilidade dos Testes , Projetos de Pesquisa , Tamanho da Amostra , Estudos de Amostragem , Viés de Seleção , Fatores Socioeconômicos , Estados Unidos
7.
J Int Neuropsychol Soc ; 27(6): 637-647, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34261556

RESUMO

OBJECTIVE: Reduced motivation is often noted as a consequence of cannabis use. However, previous work has yielded mixed results and focused largely on adults. To address these limitations, this study examined longitudinal associations between cannabis use and self-reported motivation in a large adolescent sample. METHOD: Participants were 401 adolescents aged 14-17 at baseline who completed five bi-annual assessments. We assessed motivation at three timepoints using two self-report questionnaires: the Apathy Evaluation Scale and the Motivation and Engagement Scale (disengagement, persistence, planning, self-efficacy, and valuing school subscales). Controlling for relevant covariates, we used latent growth curve modeling to characterize patterns of cannabis use and motivation over time, examining bidirectional influences between these processes. RESULTS: On average, adolescent cannabis use frequency increased significantly over time. The disengagement and planning facets of motivation also increased significantly over time, whereas other aspects of motivation remained stable. At baseline, greater cannabis use was associated with greater disengagement, lower planning, and lower valuing of school. Greater baseline cannabis use also predicted lesser increases in disengagement over time. After controlling for the effect of sex, age, depression, and use of alcohol and nicotine, only the baseline association between cannabis use and valuing school remained significant. CONCLUSIONS: Our results do not support a prospective link between cannabis use and reduced motivation among adolescents. Although most observed associations were accounted for by covariates, greater cannabis use was cross-sectionally associated with lower perceived value of school, which may contribute to poorer educational and later life outcomes.


Assuntos
Apatia , Cannabis , Comportamento Problema , Adolescente , Adulto , Humanos , Motivação , Estudos Prospectivos
8.
Subst Use Misuse ; 56(7): 1035-1044, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33829950

RESUMO

OBJECTIVE: Poor decision-making may represent a risk factor for adverse cannabis-related outcomes, whereas exercise has been linked to better executive functioning and substance use outcomes. This study examines the associations between self-reported exercise and cannabis use (CU) outcomes over 6 months among adolescents, and whether these are mediated by exercise-related effects on decision-making. Method: Participants were 387 adolescents aged 15-18 who completed two assessments 6 months apart. Self-reported past 6-month hours/week of exercise were assessed at baseline. At the 6-month follow-up, participants completed measures assessing past 6-month CU frequency, presence of CU disorder (CUD), and CU-related problems, as well as risky decision-making tasks (Iowa Gambling Task, Game of Dice Task, Cups Task), which were used to derive a latent construct of decision-making. We used prospective mediation to examine the role of decision-making in the relationship between exercise and CU outcomes. Results: More self-reported exercise at baseline predicted greater CU frequency at the 6-month follow-up, but did not predict the presence of a CUD, or cannabis-related problems. After controlling for confounds, baseline exercise did not predict better decision-making at follow-up. Decision-making did not predict CU outcomes, and indirect effects of decision-making were not significant. Conclusions: Contrary to hypotheses, adolescents reporting more exercise at baseline also reported higher CU frequency in our sample. This association may be explained by factors like sample characteristics or sports types, but more research is needed to explore this. Results did not support a mediating role for decision-making in the associations between exercise and CU outcomes.Supplemental data for this article can be accessed online at https://doi.org/10.1080/10826084.2021.1906279.


Assuntos
Comportamento do Adolescente , Cannabis , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Tomada de Decisões , Humanos , Estudos Prospectivos
9.
Psychol Med ; 50(3): 456-464, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-30846008

RESUMO

BACKGROUND: Callous-unemotional (CU) traits are critical to developmental, diagnostic, and clinical models of antisocial behaviors (AB). However, assessments of CU traits within large-scale longitudinal and neurobiologically focused investigations remain remarkably sparse. We sought to develop a brief measure of CU traits using items from widely administered instruments that could be linked to neuroimaging, genetic, and environmental data within already existing datasets and future studies. METHODS: Data came from a large and diverse sample (n = 4525) of youth (ages~9-11) taking part in the Adolescent Brain and Cognitive Development (ABCD) Study. Moderated nonlinear factor analysis was used to assess measurement invariance across sex, race, and age. We explored whether CU traits were distinct from other indicators of AB, investigated unique links with theoretically-relevant outcomes, and replicated findings in an independent sample. RESULTS: The brief CU traits measure demonstrated strong psychometric properties and evidence of measurement invariance across sex, race, and age. On average, boys endorsed higher levels of CU traits than girls and CU traits were related to, yet distinguishable from other indicators of AB. The CU traits construct also exhibited expected associations with theoretically important outcomes. Study findings were also replicated across an independent sample of youth. CONCLUSIONS: In a large, multi-site study, a brief measure of CU traits can be measured distinctly from other dimensions of AB. This measure provides the scientific community with a method to assess CU traits in the ABCD sample, as well as in other studies that may benefit from a brief assessment of CU.


Assuntos
Transtorno da Conduta/psicologia , Emoções , Determinação da Personalidade , Agressão/psicologia , Criança , Análise Fatorial , Feminino , Humanos , Estudos Longitudinais , Masculino , Pais
10.
Neuroimage ; 202: 116091, 2019 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-31415884

RESUMO

The Adolescent Brain Cognitive Development (ABCD) Study is an ongoing, nationwide study of the effects of environmental influences on behavioral and brain development in adolescents. The main objective of the study is to recruit and assess over eleven thousand 9-10-year-olds and follow them over the course of 10 years to characterize normative brain and cognitive development, the many factors that influence brain development, and the effects of those factors on mental health and other outcomes. The study employs state-of-the-art multimodal brain imaging, cognitive and clinical assessments, bioassays, and careful assessment of substance use, environment, psychopathological symptoms, and social functioning. The data is a resource of unprecedented scale and depth for studying typical and atypical development. The aim of this manuscript is to describe the baseline neuroimaging processing and subject-level analysis methods used by ABCD. Processing and analyses include modality-specific corrections for distortions and motion, brain segmentation and cortical surface reconstruction derived from structural magnetic resonance imaging (sMRI), analysis of brain microstructure using diffusion MRI (dMRI), task-related analysis of functional MRI (fMRI), and functional connectivity analysis of resting-state fMRI. This manuscript serves as a methodological reference for users of publicly shared neuroimaging data from the ABCD Study.


Assuntos
Desenvolvimento do Adolescente/fisiologia , Mapeamento Encefálico/métodos , Encéfalo/fisiologia , Processamento de Imagem Assistida por Computador/métodos , Imagem Multimodal , Adolescente , Encéfalo/anatomia & histologia , Imagem de Difusão por Ressonância Magnética , Humanos , Imageamento por Ressonância Magnética , Processamento de Sinais Assistido por Computador
11.
J Int Neuropsychol Soc ; 25(7): 661-667, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31043184

RESUMO

OBJECTIVE: Relative to the vast literature that employs measures of decision-making (DM), rigorous examination of their psychometric properties is sparse. This study aimed to determine whether three measures of DM assess the same construct, and to measure invariance of this construct across relevant covariates. METHOD: Participants were 372 adolescents at risk of escalation in cannabis use. DM was assessed via four indices from the Cups Task, Game of Dice Task (GDT), and Iowa Gambling Task (IGT). We used confirmatory factor analysis to assess unidimensionality of the DM construct, and moderated nonlinear factor analysis (MNLFA) to examine its measurement invariance. RESULTS: The unidimensional model of DM demonstrated good fit. MNLFA results revealed that sex influenced mean DM scores, such that boys had lower risk-taking behaviors. There was evidence of differential item functioning (DIF), such that IQ and age moderated the IGT intercept and GDT factor loading, respectively. Significant effects were retained in the final model, which produced participant-specific DM factor scores. These scores showed moderate stability over time. CONCLUSIONS: Indices from three DM tasks loaded significantly onto a single factor, suggesting that these DM tasks assess a single underlying construct. We suggest that this construct represents the ability to make optimal choices that maximize rewards in the presence of risk. Our final DM factor accounts for DIF caused by covariates, making it comparable across adolescents with different characteristics. (JINS, 2019, 25, 661-667).


Assuntos
Comportamento do Adolescente/fisiologia , Tomada de Decisões/fisiologia , Uso da Maconha , Testes Neuropsicológicos/normas , Psicometria/normas , Assunção de Riscos , Adolescente , Feminino , Humanos , Masculino , Modelos Estatísticos , Fatores Sexuais
12.
Dev Psychopathol ; 31(1): 361-377, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29467046

RESUMO

Research consistently demonstrates that common polymorphic variation in monoamine oxidase A (MAOA) moderates the influence of childhood maltreatment on later antisocial behavior, with growing evidence that the "risk" allele (high vs. low activity) differs for females. However, little is known about how this Gene × Environment interaction functions to increase risk, or if this risk pathway is specific to antisocial behavior. Using a prospectively assessed, longitudinal sample of females (n = 2,004), we examined whether changes in emotional reactivity (ER) during adolescence mediated associations between this Gene × Environment and antisocial personality disorder in early adulthood. In addition, we assessed whether this putative risk pathway also conferred risk for borderline personality disorder, a related disorder characterized by high ER. While direct associations between early maltreatment and later personality pathology did not vary by genotype, there was a significant difference in the indirect path via ER during adolescence. Consistent with hypotheses, females with high-activity MAOA genotype who experienced early maltreatment had greater increases in ER during adolescence, and higher levels of ER predicted both antisocial personality disorder and borderline personality disorder symptom severity. Taken together, findings suggest that the interaction between MAOA and early maltreatment places women at risk for a broader range of personality pathology via effects on ER.

13.
Subst Use Misuse ; 54(2): 271-281, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30395775

RESUMO

BACKGROUND: Characterizing patterns of adolescent cannabis use (CU), as well as risk factors and outcomes uniquely associated with these pathways is essential for informing treatment and prevention efforts. Yet, few studies have examined these issues among youth at-risk of engaging in problematic cannabis use. Further, research accounting for use of other substances or sex differences in patterns of CU remains exceedingly sparse. METHODS: Trajectory-based modeling was used to identify underlying CU pathways among a predominantly Hispanic (90%) sample of at-risk youth (n = 401; 46% female) across adolescence (ages∼14-18), controlling for baseline substance use and participant demographics. Adolescent psychopathology (i.e., conduct disorder, attention deficit hyperactivity disorder, anxiety, and depression) was examined as a predictor and outcome of CU. RESULTS: Three trajectories of adolescent CU were identified, with most youth (74%) engaging in relatively "low" levels of use, followed by ∼12% exhibiting an early-initiating "chronic" course, and 14% "escalating" in use. Although boys and girls both experienced increased levels of CU across adolescence, boys were more likely to exhibit escalating and chronic patterns of use. Findings revealed unique associations between adolescent CU pathways and facets of psychopathology; most notably, the relatively robust and bidirectional association between CU trajectories and conduct problem symptoms. CONCLUSIONS: Specific facets of psychopathology may confer unique associations with CU across development, including the initiation and exacerbation of CU during adolescence.


Assuntos
Transtornos de Ansiedade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno da Conduta/epidemiologia , Transtorno Depressivo/epidemiologia , Uso da Maconha/epidemiologia , Adolescente , Desenvolvimento do Adolescente , Transtornos de Ansiedade/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Criança , Transtorno da Conduta/psicologia , Transtorno Depressivo/psicologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Abuso de Maconha/epidemiologia , Abuso de Maconha/psicologia , Uso da Maconha/psicologia , Fatores de Risco , Fatores Sexuais , Transtornos Relacionados ao Uso de Substâncias , Uso de Tabaco/epidemiologia , Uso de Tabaco/psicologia , Consumo de Álcool por Menores/psicologia , Consumo de Álcool por Menores/estatística & dados numéricos
14.
Child Psychiatry Hum Dev ; 50(2): 245-256, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30062495

RESUMO

The primary aim of the present study was to examine the psychometric properties and measurement invariance of the Inventory of Callous-Unemotional Traits (ICU) self-report and its short version (ICU-12) among a mixed-sex normative sample of 782 Portuguese youth (M = 15.87 years; SD = 1.72). Confirmatory factor analysis revealed that the three-factor structure of the ICU obtained the best fit after the removal of two items, and the two-factor structure of the ICU-12 obtained the best fit after the removal of one item. Cross-sex measurement invariance was demonstrated for both versions of the inventory. The 22-item version of the ICU and its 11-item short form (ICU-SF) demonstrated generally adequate psychometric properties of internal consistency, convergent validity, discriminant validity, and criterion-related validity (e.g., with conduct disorder symptoms). In terms of known-groups validity, males scored significantly higher than females. Results suggest that the use of the ICU and ICU-SF among Portuguese-speaking youth is psychometrically justified.


Assuntos
Transtorno da Conduta , Inventário de Personalidade/normas , Psicometria , Adolescente , Transtorno da Conduta/diagnóstico , Transtorno da Conduta/psicologia , Feminino , Humanos , Masculino , Portugal , Psicometria/métodos , Psicometria/normas , Reprodutibilidade dos Testes , Comportamento Social , Traduções , Adulto Jovem
15.
J Clin Child Adolesc Psychol ; 47(3): 467-482, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-27101442

RESUMO

Youth with a callous interpersonal style, consistent with features of adult psychopathy (e.g., lack of guilt, deceitful), are at risk for exhibiting severe and protracted antisocial behaviors. However, no studies have examined changes that occur in interpersonal callousness (IC) from childhood to adolescence, and little is known about the influence of early child, social, and contextual factors on trajectories of IC. The current study examined distinct patterns of IC across childhood and adolescence and associations with early risk factors. Participants were an at-risk sample of 503 boys (56% African American) assessed annually from around ages 7-15. Analyses examined child (anger dysregulation, fearfulness), social (peer, family, maltreatment), and contextual (psychosocial adversity) factors associated with teacher-reported IC trajectories across childhood and adolescence. Using latent class growth analysis, five trajectories of IC were identified (early-onset chronic, childhood-limited, adolescent-onset, moderate, low). Approximately 10% of boys followed an early-onset chronic trajectory, and a roughly equal percent of youth followed childhood-limited trajectory (10%) or an adolescent-onset trajectory (12%) of IC across development. Specifically, half of the boys with high IC in childhood did not continue to exhibit significant levels of these features into adolescence, whereas an equal proportion of youth with low IC in childhood demonstrated increasing levels during the transition to adolescence. Boys in the early-onset chronic group were characterized by the most risk factors and were differentiated from those with childhood-limited and adolescent-onset IC only by higher conduct problems, fearlessness, and emotional abuse/neglect. Findings are discussed in terms of developmental models of IC and several avenues for early targeted interventions.


Assuntos
Deficiências do Desenvolvimento/diagnóstico , Relações Interpessoais , Adolescente , Criança , Feminino , Humanos , Masculino , Fatores de Risco
16.
Neuroimage ; 147: 763-771, 2017 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-27956207

RESUMO

Sensation seeking is a personality construct associated with an increased propensity for engaging in risk-taking. Associations with deleterious outcomes ranging from mental health impairments to increased mortality rates highlight important public health concerns related to this construct. Although some have suggested that increased neural responsivity to reward within the ventral striatum (e.g., nucleus accumbens) may drive sensation seeking behaviors, few studies have examined the neural mechanisms associated with stable individual differences in sensation seeking across development. To address this issue, the current study used functional magnetic resonance imaging to examine the association between neural responding to reward and stable patterns of sensation seeking across a three-year follow-up period among healthy adolescents and young adults (N = 139). Results indicated that during early adolescence (~ages 10-12), increased reactivity to reward within the nucleus accumbens (NAcc) was associated with lower levels of sensation seeking across a three-year follow-up. In middle adolescence (~ages 12-16), there was no evidence of a relationship between NAcc reactivity and sensation seeking. However, during the transition from late adolescence into adulthood (~ages 17-25), heightened reward-related reactivity in the NAcc was linked to increased sensation seeking. Findings suggest that the neural mechanisms underlying individual differences in trait-like levels of sensation seeking change from early to late adolescence.


Assuntos
Comportamento Exploratório/fisiologia , Desenvolvimento Humano/fisiologia , Núcleo Accumbens/fisiologia , Personalidade/fisiologia , Recompensa , Assunção de Riscos , Adolescente , Adulto , Criança , Medições dos Movimentos Oculares , Feminino , Seguimentos , Humanos , Imageamento por Ressonância Magnética , Masculino , Núcleo Accumbens/diagnóstico por imagem , Análise e Desempenho de Tarefas , Adulto Jovem
17.
J Child Psychol Psychiatry ; 58(1): 55-63, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27516046

RESUMO

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. Analyses examined the unique and interactive association between latent growth curve trajectories of IC and CP assessed bi-annually from late childhood to early adolescence (~ages 10-13) and features of psychopathy in early adulthood (age ~ 24) assessed using the Psychopathy Checklist - Short Version (PCL:SV; Hart, Cox, & Hare, 1995). RESULTS: Growth curve analysis indicated that initial levels of IC and CP in childhood (~age 10 intercept) both uniquely predicted the development of the interpersonal/affective features of adult psychopathy, and boys with a combination of high initial levels of IC and CP were at particularly high risk for developing the impulsive/antisocial features of the disorder. Boys who exhibited systematic increases in CP from late childhood to early adolescence also demonstrated higher adult psychopathy scores, but changes in IC across this developmental period did not significantly add to the prediction of adult psychopathy. CONCLUSIONS: Findings highlight the importance of developing targeted interventions for boys exhibiting severe IC and CP in childhood, as they appear to be at high risk for developing adult psychopathic features.


Assuntos
Comportamento do Adolescente/fisiologia , Transtorno da Personalidade Antissocial/fisiopatologia , Comportamento Infantil/fisiologia , Transtorno da Conduta/fisiopatologia , Empatia/fisiologia , Relações Interpessoais , Adolescente , Adulto , Criança , Humanos , Estudos Longitudinais , Masculino , Risco , Adulto Jovem
18.
J Int Neuropsychol Soc ; 23(9-10): 893-902, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-29198276

RESUMO

Cannabis use has been linked to impairments in neuropsychological functioning across a large and continually expanding body of research. Yet insight into underlying causal relations remains limited due to the historically cross-sectional nature of studies in this area. Recently, however, studies have begun to use more informative design strategies to delineate these associations. The aim of this article is to provide a critical evaluation and review of research that uses longitudinal designs to examine the link between cannabis use and neuropsychological functioning. In summarizing the primary findings across these studies, this review suggests that cannabis use leads to neuropsychological decline. However, across most studies, these associations were modest, were present only for the group with the heaviest cannabis use, and were often attenuated (or no longer significant) after controlling for potential confounding variables. Future studies with neuropsychological data before and after initiation of cannabis use, along with careful measurement and control of "shared risk factors" between cannabis use and poorer neuropsychological outcomes, are needed to better understand who, and under what conditions, is most vulnerable to cannabis-associated neuropsychological decline. (JINS, 2017, 23, 893-902).


Assuntos
Estudos Longitudinais , Fumar Maconha/fisiopatologia , Transtornos Neurocognitivos/diagnóstico , Transtornos Neurocognitivos/etiologia , Testes Neuropsicológicos , Humanos
19.
Child Psychiatry Hum Dev ; 47(5): 679-90, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-26493393

RESUMO

This study examines the psychometric properties of the self-report version of the Inventory of Callous-Unemotional Traits in 191 detained female adolescents (M = 15.76, SD = 1.02). Evidence supporting the validity of the ICU scores was generally weak, largely due to poor functioning of the Unemotional subscale. Results from confirmatory factor analyses demonstrated support for a recently proposed shortened version of the ICU consisting of two subscales (Callousness and Uncaring). Both subscales showed acceptable to good internal consistency. This short-form version also improved criterion validity, though some issues regarding its convergent validity need further consideration. In conclusion, this study suggests that a short-form version of the ICU that includes a subset of the original items may hold promise as an efficient and valid method for assessing CU traits.


Assuntos
Transtorno da Personalidade Antissocial , Emoções , Delinquência Juvenil/psicologia , Inventário de Personalidade , Psicometria , Adolescente , Transtorno da Personalidade Antissocial/diagnóstico , Transtorno da Personalidade Antissocial/psicologia , Análise Fatorial , Feminino , Psiquiatria Legal/métodos , Humanos , Reprodutibilidade dos Testes , Autorrelato
20.
J Crim Justice ; 45: 48-53, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27346900

RESUMO

PURPOSE: We examine whether and how much risk/need indicators change over time in a sample of serious adolescent offenders and whether changes in risk are related to self-reported and official record reports of offending in the year following assessment. METHODS: Growth curve and multilevel mixed-effects models are used to examine change through age 18 in a sample of 1,354 serious adolescent offenders participating in the Pathways to Desistance Study. RESULTS: Three primary findings emerge: 1) Compared to the baseline assessment, overall risk/need scores decrease over time. 2) Risk/need does not change in a uniform sequence across domains and time; the form and rate of change differ by domain. 3) Risk/need indicators were related to later offending, with more recent indicators being more powerful for predicting rearrest. CONCLUSIONS: The findings provide empirical support for recent efforts to incorporate routine risk/need assessment into juvenile justice practice. Repeated assessments are likely to identify fluctuations in areas of risk/need that can be used to inform case management and intervention efforts, even for serious offenders.

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