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1.
J Pediatr Psychol ; 49(2): 131-141, 2024 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-38216125

RESUMO

OBJECTIVE: Anxiety is prevalent in young autistic children under 7 years of age. Yet there is a paucity of empirically based interventions for this age group. DINO Strategies for Anxiety and Uncertainty Reduction (DINOSAUR) is an innovative cognitive behavioral intervention that seeks to optimize treatment response in young autistic children by targeting anxiety and the contributing mechanisms of intolerance of uncertainty and parental accommodation using a telehealth delivery model. This pilot, single-arm study examines the preliminary feasibility of DINOSAUR. METHODS: Fourteen autistic children ages 4-6 years with average language and cognitive skills and their parents received the intervention. Quantitative and qualitative data pertaining to parent satisfaction and treatment outcomes were collected. RESULTS: Attendance, retention, and parent satisfaction ratings offer preliminary support for the feasibility of the treatment model. Change in clinical severity ratings on a semi-structured parent interview of anxiety and parents' qualitative report suggests the potential to benefit young autistic children. CONCLUSIONS: Results support future study of the DINOSAUR model in a larger, randomized controlled trial.


Assuntos
Transtorno Autístico , Criança , Humanos , Estudos de Viabilidade , Transtorno Autístico/terapia , Projetos Piloto , Ansiedade/terapia , Ansiedade/psicologia , Pais/psicologia , Cognição
2.
Dev Psychopathol ; : 1-13, 2023 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-37990408

RESUMO

Sensory differences and anxiety disorders are highly prevalent in autistic individuals with and without ADHD. Studies have shown that sensory differences and anxiety are associated and that intolerance of uncertainty (IU) plays an important role in this relationship. However, it is unclear as to how different levels of the sensory processing pathway (i.e., perceptual, affective, or behavioral) contribute. Here, we used psychophysics to assess how alterations in tactile perception contribute to questionnaire measures of sensory reactivity, IU, and anxiety. Thirty-eight autistic children (aged 8-12 years; 27 with co-occurring ADHD) were included. Consistent with previous findings, mediation analyses showed that child-reported IU fully mediated an association between parent-reported sensory reactivity and parent-reported anxiety and that anxiety partially mediated an association between sensory reactivity and IU. Of the vibrotactile thresholds, only simultaneous frequency discrimination (SFD) thresholds correlated with sensory reactivity. Interestingly, we found that sensory reactivity fully mediated an association between SFD threshold and anxiety, and between SFD threshold and IU. Taken together, those findings suggest a mechanistic pathway whereby tactile perceptual alterations contribute to sensory reactivity at the affective level, leading in turn to increased IU and anxiety. This stepwise association can inform potential interventions for IU and anxiety in autism.

3.
J Clin Child Adolesc Psychol ; : 1-9, 2022 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-36129785

RESUMO

OBJECTIVE: While a growing body of evidence suggests youth with autism are at increased risk of experiencing a mental health crisis, no study has screened for crises in an outpatient setting. The current study fills this gap by examining a) the feasibility and utility of conducting routine crisis screenings; b) the psychometrics of a brief crisis screener (the Mental Health Crisis Assessment Scale-Revised; MCAS-R); and, c) the prevalence of and types of behaviors associated with crises. METHOD: This study was conducted at two different outpatient mental health clinics. Screenings were conducted using the MCAS-R, a 23-item parent report measure. A total of 406 youth with autism (76% Male; 72% White; M = 11.2y; SD = 3.5y), evenly divided across clinics, were screened. Seven clinicians conducted a clinical visit, which incorporated the results of the MCAS-R, to determine whether the child was in crisis. RESULTS: Eighty percent of youth were successfully screened, suggesting crisis screening is feasible. Most parents (73%) felt the MCAS-R helped communicate concerns with the clinician; few (<6%) felt the survey was too long or upsetting. All clinicians (100%) indicated that the MCAS-R was very helpful in facilitating communication and identifying/mitigating safety concerns; although, 33% reported screenings "sometimes" interrupted clinical flow. The MCAS-R strongly aligned with clinician ratings (88% correctly classified). Twenty percent of youth met the cutoff for crisis; aggression and self-injurious behaviors were the most common reasons for crises. CONCLUSION: This study suggests that outpatient crisis screening via the MCAS-R is feasible, accurate, and well received by parents and clinicians. ABBREVIATIONS: ASD: Autism Spectrum Disorder; MCAS-R: Mental Health Assessment Crisis Scale-Revised; DSM-5: Diagnostic and Statistical Manual, 5th Edition; ADOS-2: Autism Diagnostic Observation Schedule, Second Edition; ROC: Receiver Operating Curve.

4.
J Child Psychol Psychiatry ; 59(1): 48-56, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28524378

RESUMO

BACKGROUND: Youth with autism spectrum disorder (ASD) exhibit high rates of psychopathology. These symptoms can pose a risk of injury to self or others when the child is in crisis. Despite this danger, there are no instruments available to identify those with ASD who are at risk or actively in crisis. This study examined the psychometric properties of the Mental Health Crisis Assessment Scale (MCAS), a 28 item parent report measure. METHODS: The MCAS was administered to the parents of 606 children and young adults (aged 3-25 years, M age = 13 years, SD = 5 years) enrolled in the Interactive Autism Network, an online registry of families raising a child with ASD. The MCAS asks parents to rate the severity of various emotional and behavioral symptoms exhibited by their child. The parent then selects the behavior they perceive as the most dangerous behavior and rates the acuity of as well as their efficacy in managing this behavior. The MCAS was tested for internal consistency, construct validity, criterion validity, and convergent validity. RESULTS: The MCAS demonstrated strong internal consistency (Total Scale Cronbach's α = .88). The exploratory and confirmatory factor analyses suggested that a two factor (acuity and behavioral efficacy) model fit the data well, providing evidence of construct validity. Criterion validity, which was assessed by comparing the MCAS to clinician determination of crisis, indicated high levels of agreement (ROC = .85). Strong positive relationships emerged between the MCAS and measures of family distress (r = .56), parental stress, and frustration (r = .48), and use of emergency psychiatric services (OR = 24.2, 95% CI: 8.6-68.2), indicating convergent validity of the measure (all p < .05). CONCLUSIONS: Results of the psychometric analyses suggest the MCAS appears to be a promising tool that can measure mental health crises in youth with ASD.


Assuntos
Transtorno do Espectro Autista/psicologia , Adolescente , Adulto , Fatores Etários , Transtorno do Espectro Autista/complicações , Criança , Pré-Escolar , Emergências , Análise Fatorial , Feminino , Humanos , Masculino , Transtornos Mentais/complicações , Transtornos Mentais/diagnóstico , Transtornos Mentais/psicologia , Psicometria , Reprodutibilidade dos Testes , Adulto Jovem
5.
Int Rev Psychiatry ; 30(1): 62-77, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29537895

RESUMO

Internalizing disorders are common in individuals with ASD. Psychosocial interventions targeting these disorders in the ASD population have burgeoned in the last decade. Cognitive-behavioural therapy, modified for ASD, is the most frequently investigated model, although other interventions, including behaviour therapy, third-wave interventions, models targeting transdiagnostic constructs, and alternative interventions and treatment delivery methods are now emerging. This review provides a summary of the efficacy of these interventions in treating internalizing disorders in youth and adults with ASD. The barriers to accessing these treatments, which are experienced by many individuals with ASD and their families, as well as future research directions, are also discussed.


Assuntos
Transtornos de Ansiedade/terapia , Transtorno do Espectro Autista , Comorbidade , Transtorno Depressivo/terapia , Transtorno Obsessivo-Compulsivo/terapia , Psicoterapia/métodos , Adolescente , Adulto , Transtornos de Ansiedade/epidemiologia , Transtorno do Espectro Autista/epidemiologia , Transtorno Depressivo/epidemiologia , Humanos , Transtorno Obsessivo-Compulsivo/epidemiologia
6.
Int Rev Psychiatry ; 30(1): 40-61, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29683351

RESUMO

Individuals with autism spectrum disorder (ASD) are at increased risk for experiencing one or more co-occurring psychiatric conditions. When present, these conditions are associated with additional impairment and distress. It is therefore crucial that clinicians and researchers adequately understand and address these challenges. However, due to symptom overlap, diagnostic overshadowing, and ambiguous symptom presentation in ASD, the assessment of co-occurring conditions in ASD is complex and challenging. Likewise, individual difference factors, such as age, intellectual functioning, and gender, may influence the presentation of co-occurring symptoms. Relatedly, a transdiagnostic framework may offer utility in assessing and treating co-occurring conditions. However, with the exception of anxiety disorders, treatment research for co-occurring psychiatric conditions in ASD is relatively limited. Therefore, the present paper aims to summarize and review available research on the most common co-occurring psychiatric disorders in ASD, with a focus on estimated population-based prevalence rates, diagnostic challenges, the influence of individual differences, and assessment guidelines. The utility of a transdiagnostic framework for conceptualizing co-occurring disorders in ASD is discussed, and the state of treatment research for co-occurring disorders is summarized. This study concludes with a summary of the extant literature, as well as recommendations for future research.


Assuntos
Transtornos de Ansiedade , Transtorno do Deficit de Atenção com Hiperatividade , Transtorno do Espectro Autista , Transtorno Bipolar , Comorbidade , Transtorno da Conduta , Transtorno Depressivo , Esquizofrenia , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/epidemiologia , Transtornos de Ansiedade/fisiopatologia , Transtornos de Ansiedade/terapia , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Transtorno do Espectro Autista/diagnóstico , Transtorno do Espectro Autista/epidemiologia , Transtorno do Espectro Autista/fisiopatologia , Transtorno do Espectro Autista/terapia , Transtorno Bipolar/diagnóstico , Transtorno Bipolar/epidemiologia , Transtorno Bipolar/fisiopatologia , Transtorno Bipolar/terapia , Transtorno da Conduta/diagnóstico , Transtorno da Conduta/epidemiologia , Transtorno da Conduta/fisiopatologia , Transtorno da Conduta/terapia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/fisiopatologia , Transtorno Depressivo/terapia , Humanos , Esquizofrenia/diagnóstico , Esquizofrenia/epidemiologia , Esquizofrenia/fisiopatologia , Esquizofrenia/terapia
7.
Int Rev Psychiatry ; 29(2): 79-88, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28306351

RESUMO

This review examines the efficacy and safety of repetitive transcranial magnetic stimulation (rTMS) as a treatment for treatment-resistant depression in adolescents. A systematic review of six databases was conducted. Ten multi-subject trials, all uncontrolled, and five case reports met inclusion criteria. Twelve studies focused on treatment efficacy, whereas three studies focused exclusively on adverse events. All efficacy studies focused on adolescents only; 10 of these studies indicated that rTMS may demonstrate some benefit. Improvement within 2-8 weeks was reported in most studies, with a few studies indicating potential long-term benefits. A variety of adverse events occurred including scalp pain, which was the most common, as well as seizures. Controlled studies of rTMS are warranted to further examine whether this treatment is a potential option for adolescents with treatment-resistant depression.


Assuntos
Transtorno Depressivo Resistente a Tratamento/terapia , Estimulação Magnética Transcraniana/efeitos adversos , Estimulação Magnética Transcraniana/métodos , Adolescente , Humanos
8.
Brain Inj ; 29(7-8): 921-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25950263

RESUMO

OBJECTIVE: Paediatric severe traumatic brain injury (TBI) is associated with significant post-injury affective and behavioural problems. Few studies have examined the prevalence and characteristics of affective lability after paediatric TBI. METHODS: Ninety-seven children with severe TBI were evaluated 1 year post-injury for the presence of affective lability using the Children's Affective Lability Scale (CALS). Demographic, clinical and brain lesion characteristics were also assessed. RESULTS: Affective lability significantly increased after injury. Eighty-six children had a pre-injury CALS score of 1 SD or less from the group pre-injury mean (M = 8.11, SD = 9.31), of which 35 and 15 children had a 1 SD and 2 SD increase in their CALS score from pre- to post-injury, respectively. A variety of affective shifts manifested post-injury including anxiety, silliness, dysphoria and irritability. The most severe symptoms were irritability and unpredictable temper outbursts. Risk factors for affective lability included elevated pre-injury affective lability and psychosocial adversity as well as greater damage to the orbitofrontal cortex. Post-injury affective lability was most frequently associated with a post-injury diagnosis of attention-deficit hyperactivity disorder. CONCLUSIONS: Affective lability is common after paediatric TBI and frequently manifests as irritability and unpredictable outbursts. Early intervention is needed to improve psychiatric outcomes.


Assuntos
Sintomas Afetivos/diagnóstico , Ansiedade/diagnóstico , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/diagnóstico , Lesões Encefálicas/fisiopatologia , Transtornos Cognitivos/diagnóstico , Adolescente , Sintomas Afetivos/etiologia , Ansiedade/etiologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/etiologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/fisiopatologia , Lesões Encefálicas/complicações , Lesões Encefálicas/psicologia , Criança , Pré-Escolar , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/fisiopatologia , Estudos Cross-Over , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Seguimentos , Escala de Coma de Glasgow , Humanos , Humor Irritável , Masculino , Testes Neuropsicológicos , Prevalência , Fatores de Risco , Índice de Gravidade de Doença
9.
Pediatr Emerg Care ; 31(12): 813-8, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26583932

RESUMO

OBJECTIVES: Although injuries are a known cause of morbidity and mortality among children and adolescents, little is known about the epidemiology of injury-related emergency department (ED) visits in the United States by injury intent. The objective of this analysis was to examine ED outcomes, defined as death in the ED, inpatient admission, and visit cost, among ED visits stratified by injury intent (i.e., self-harm, assault, and injury with undetermined intent, as compared with unintentional injuries). METHODS: All injury-related ED visits in the United States for children and adolescents, ages 8 to 17 years, were identified using the 2008 Nationwide Emergency Department Sample. Multivariate survey weighted logistic and linear regression analyses were then used to estimate the likelihood of death on ED visit, inpatient admission, and cost across the 4 injury types. RESULTS: In 2008, with the use of weighted estimates, there were 66,895 self-harm, 176,125 assault, 24,144 undetermined injury, and 4,244,589 unintentional injury ED visits among children 8 to 17 years. Visits due to self-harm, assault and undetermined injuries were more likely to result in death during the ED visit compared with visits due to unintentional injuries. Self-harm and undetermined intent were also associated with greater odds of inpatient admission as well as 90% and 60% higher ED visit costs, respectively. CONCLUSIONS: Data from this nationwide sample of pediatric ED visits highlight the resource burden of self-harm, undetermined intent, and assault injury visits. Pediatric EDs may provide a window of opportunity for better case identification and intervention with children experiencing violence and injury.


Assuntos
Serviço Hospitalar de Emergência/estatística & dados numéricos , Comportamento Autodestrutivo/epidemiologia , Adolescente , Criança , Mortalidade da Criança , Estudos Transversais , Feminino , Humanos , Masculino , Admissão do Paciente/estatística & dados numéricos , Pediatria , Comportamento Autodestrutivo/mortalidade , Inquéritos e Questionários , Estados Unidos/epidemiologia
10.
Pediatr Clin North Am ; 71(2): 269-282, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38423720

RESUMO

Children with autism are at high risk for experiencing a mental health crisis, which occurs when psychiatric and behavioral symptoms become a danger and caregivers do not have the resources to safely manage the event. Our current mental health systems of care are not fully prepared to manage crisis in autistic individuals, due to the shortage of available mental health providers and programs that are tailored for autistic children. However, new strategies to address crisis are gradually emerging. This article provides a framework to define crisis and implement prevention and intervention approaches that could potentially mitigate risk for crisis.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Serviços de Saúde Mental , Criança , Humanos , Saúde Mental , Transtorno Autístico/complicações , Transtorno Autístico/terapia , Atenção Primária à Saúde
13.
Autism Res ; 16(8): 1561-1572, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37350221

RESUMO

Anxiety disorders in autistic children are associated with significant functional impairment. Few studies have examined impairing anxiety presentations in autistic preschool children (i.e., 3-5 years old). This cross-sectional study examined the phenomenology of impairing anxiety and the strongest correlates of anxiety in 75 autistic preschool children. Parents completed a diagnostic interview that assesses two anxiety types, DSM-5 anxiety disorders and impairing distinct anxiety presentations, and measures of anxiety correlates. An exploratory network analysis examined connections between anxiety and its correlates. Forty percent of children had impairing anxiety. Specific phobia followed by 'other social fear,' a type of distinct anxiety, were the most common anxiety types. Child intolerance of uncertainty (IU) was the only correlate that was associated with anxiety in a network analysis framework. Child IU linked anxiety to two other correlates, sensory over-responsivity and somatic symptoms. Findings emphasize the need for early intervention for anxiety and further research on its correlates.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Humanos , Pré-Escolar , Transtorno Autístico/complicações , Transtorno Autístico/epidemiologia , Estudos Transversais , Transtorno do Espectro Autista/complicações , Transtorno do Espectro Autista/epidemiologia , Ansiedade/complicações , Ansiedade/epidemiologia , Transtornos de Ansiedade/complicações , Transtornos de Ansiedade/epidemiologia
14.
Autism ; 27(3): 679-689, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-35920285

RESUMO

LAY ABSTRACT: Children, adolescents, and adults with autism spectrum disorder and intellectual disability experience high rates of co-occurring psychiatric conditions throughout their lifetime. However, there is a shortage of psychiatrists to treat these populations. We evaluated how much education psychiatrists-in-training receive on how to care for individuals with autism spectrum disorder/intellectual disability. We found that in many psychiatry programs, residents receive limited training experiences in autism spectrum disorder/intellectual disability involving lectures and patient contact and that psychiatry program directors would benefit from more resources to strengthen education in autism spectrum disorder/intellectual disability.


Assuntos
Transtorno do Espectro Autista , Deficiência Intelectual , Psiquiatria , Adulto , Criança , Adolescente , Humanos , Transtorno do Espectro Autista/terapia , Deficiência Intelectual/terapia , Psiquiatria/educação , Escolaridade
15.
J Autism Dev Disord ; 52(4): 1762-1770, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34009549

RESUMO

Research indicates that children with autism spectrum disorder (ASD) frequently exhibit dysregulation, which refers to poorly coordinated affective, behavioral, and cognitive responses to a given situation. We examined the characteristics of dysregulation in children presenting to a multidisciplinary ASD clinic for an ASD diagnostic evaluation. Sixty percent of children presenting for an ASD evaluation exhibited dysregulation. Dysregulation prevalence was higher in children without ASD versus with ASD (69% versus 56%). Severe dysregulation was higher in children without ASD (29% versus 16%). Both groups with severe dysregulation were equally likely to be taking psychiatric medications, however, children with ASD were less likely to be receiving therapy. These findings highlight the importance of implementing dysregulation screening and treatment protocols in ASD centers.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Adolescente , Instituições de Assistência Ambulatorial , Transtorno do Espectro Autista/diagnóstico , Transtorno do Espectro Autista/epidemiologia , Transtorno do Espectro Autista/psicologia , Transtorno Autístico/diagnóstico , Transtorno Autístico/epidemiologia , Criança , Humanos , Prevalência
16.
J Autism Dev Disord ; 2022 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-36227445

RESUMO

Intolerance of uncertainty (IU) is a multidimensional construct involving maladaptive responses to uncertainty. IU is strongly associated with autism and anxiety, yet no studies have examined its symptom profile in autistic children. This study compares IU symptom profiles in autistic and NT children and in autistic children with and without anxiety using the Intolerance of Uncertainty Scale for Children. Compared to NT peers, autistic children exhibited heightened IU symptoms in all domains, affective, behavioral, and cognitive; affective symptoms had the highest association with autism. Autistic children with anxiety also exhibited elevated IU symptoms in all domains compared to those without anxiety; behavioral IU symptoms had the highest association with anxiety. IU symptom profiles should be considered in assessment and treatment.

17.
J Dev Behav Pediatr ; 43(4): 181-187, 2022 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-34657090

RESUMO

OBJECTIVE: The purpose of this study was to describe the implementation of universal suicide risk screening in pediatric neurodevelopmental disabilities (NDD) medical clinics, analyze demographic and clinical characteristics of eligible patients, describe outcomes of positive screenings, and describe factors that influenced participation in screenings. METHODS: A suicide risk screening protocol was developed and implemented for medical clinic patients aged 8 to 18 years. Registered nurses screened patients using the "Ask Suicide-Screening Questions" tool during triage. Positive screenings were referred for further assessment and mental health management. Demographics and clinical data were extracted from medical records using retrospective chart reviews. RESULTS: During the 6-month study period, 2961 individual patients presented for 5260 screening eligible patient visits. In total, 3854 (73.3%) screenings were completed with 261 (6.8%) positive screenings noted. Screenings were declined in 1406 (26.7%) visits. Parents of children with cognitive impairments were more likely to decline screening. Clinics serving children with autism spectrum disorder had higher rates of positive screenings compared with all other clinic attendees. Seventy-two of 187 children (38.5%) with positive screenings were identified and referred to outpatient mental health referrals. Seven (2.5%) of these children required acute psychiatric treatment. CONCLUSION: Routine screening, identification of increased suicide risk, and referral to mental health care among children with NDD are feasible. It remains unclear whether variation in rates among youth with and without NDD may indicate true differences in suicide risk or cognitive impairments or reflect psychiatric comorbidities. High rates of declined participation may have influenced identification of children with NDD and suicide risk. Preliminary findings identified groups of children with NDD at heightened risk for suicidal ideation and behavior. Further research is needed to assess the validity of suicide risk screening tools in children with neurodevelopmental disorders.


Assuntos
Transtorno do Espectro Autista , Prevenção do Suicídio , Adolescente , Transtorno do Espectro Autista/diagnóstico , Transtorno do Espectro Autista/epidemiologia , Criança , Humanos , Programas de Rastreamento , Pacientes Ambulatoriais , Estudos Retrospectivos , Ideação Suicida
18.
Brain Sci ; 12(3)2022 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-35326283

RESUMO

Individuals with autism spectrum disorder (ASD) struggle to access high-quality health care due to the shortage of trained providers. ECHO (Extension for Community Healthcare Outcomes) Autism is a unique educational program that allows ASD experts to provide knowledge and skills to professionals in local communities to deliver evidence-based care to children with ASD and their families. The model teaches clinicians how to screen and diagnose ASD, as well as manage common co-occurring medical and mental health issues. ECHO Autism is particularly useful for addressing the complex needs of children with ASD and reducing disparities often present in rural and underserved communities. The model can be disseminated globally due to its flexibility in accommodating local and regional differences in social norms and constructs. This article provides an overview of the format of the ECHO Autism model, data supporting the model's efficacy, and discusses future research directions.

19.
J Child Psychol Psychiatry ; 52(7): 808-16, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21175614

RESUMO

BACKGROUND: Error processing is reflected, behaviorally, by slower reaction times (RT) on trials immediately following an error (post-error). Children with attention-deficit hyperactivity disorder (ADHD) fail to show RT slowing and demonstrate increased intra-subject variability (ISV) on post-error trials. The neural correlates of these behavioral deficits remain unclear. The dorsal anterior cingulate cortex (ACC) and lateral prefrontal cortex (PFC) are key regions implicated in error processing and subsequent behavioral adjustment. We hypothesized that children with ADHD, compared to typically developing (TD) controls, would exhibit reduced PFC activation during post-error (versus post-correct inhibition) trials and reduced dACC activation during error (versus correct inhibition) trials. METHODS: Using functional Magnetic Resonance Imaging (fMRI) and a Go/No-Go task, we analyzed the neural correlates of error processing in 13 children with ADHD and 17 TD children. RESULTS: Behaviorally, children with ADHD showed similar RT slowing but increased ISV compared to controls. The post-error contrast revealed a relative increase in blood-oxygen-level dependent (BOLD) signal in the middle/inferior temporal cortex (TempC), the ACC/supplementary motor area (SMA) and the somatosensory/auditory cortex (AudC) in children with ADHD compared to controls. Importantly, in the ADHD group, increased post-error temporal cortex activity was associated with lower ISV. During error (versus correct inhibition) trials, no between-group differences were detected. However, in children with ADHD lower ISV was associated with decreased insula and increased precentral gyrus activity. CONCLUSIONS: In children with ADHD, post-error neural activity suggests, first, a shift of attention towards task-irrelevant stimuli (AudC), and second, a recruitment of compensatory regions that resolve stimulus conflict (TempC) and improve response selection/execution (ACC/SMA). ADHD children with higher temporal cortex activation showed lower ISV, suggesting that functional abnormalities in the compensatory temporal regions contribute to increased variability. Moreover, increased ISV may be related to an over-sensitivity to negative outcomes during error trials in ADHD (insula correlation).


Assuntos
Adaptação Psicológica/fisiologia , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Atenção/fisiologia , Transtornos do Comportamento Infantil/fisiopatologia , Percepção de Cores/fisiologia , Função Executiva/fisiologia , Processamento de Imagem Assistida por Computador , Inibição Psicológica , Imageamento por Ressonância Magnética , Reconhecimento Visual de Modelos/fisiologia , Desempenho Psicomotor/fisiologia , Tempo de Reação/fisiologia , Lobo Temporal/fisiopatologia , Adolescente , Mapeamento Encefálico , Criança , Transtornos do Comportamento Infantil/diagnóstico , Transtornos do Comportamento Infantil/psicologia , Aprendizagem por Discriminação/fisiologia , Dominância Cerebral/fisiologia , Feminino , Lobo Frontal/fisiopatologia , Giro do Cíngulo/fisiopatologia , Humanos , Masculino , Córtex Pré-Frontal/fisiologia
20.
J Neurodev Disord ; 13(1): 46, 2021 10 11.
Artigo em Inglês | MEDLINE | ID: mdl-34635048

RESUMO

BACKGROUND: Anxiety disorders are highly prevalent in children and adolescents with autism spectrum disorder and often emerge before the age of 6 years. Yet, only a few studies have examined anxiety treatment for this group. Preliminary evidence from these studies suggests that utilizing cognitive behavioral therapy (CBT) as well as strategies to target intolerance of uncertainty (IU) and parental accommodation, known mechanistic and maintaining factors of anxiety may improve anxiety and optimize outcomes in this age group. MAIN BODY: To meet this need, we developed an integrated treatment called DINO Strategies for Anxiety and intolerance of Uncertainty Reduction (DINOSAUR), a 12-week group telehealth treatment for 4- to 6-year-old children with ASD. DINOSAUR works with young children and their parents to deliver CBT along with interventions targeting IU and parental accommodation. In this paper, we first discuss the rationale for developing this treatment and then describe a pilot study of its feasibility and preliminary efficacy. CONCLUSIONS: There is a great need to develop anxiety treatments for young children with ASD. We proposed a novel integrated treatment approach that aims to alter the way young children and parents respond to fear, which could potentially improve short- and long-term mental health outcomes for this age group. TRIAL REGISTRATION: ClinicalTrials.gov NCT04432077 on June 03, 2020.


Assuntos
Transtorno do Espectro Autista , Terapia Cognitivo-Comportamental , Dinossauros , Animais , Ansiedade/complicações , Ansiedade/terapia , Transtornos de Ansiedade/complicações , Transtornos de Ansiedade/terapia , Transtorno do Espectro Autista/complicações , Transtorno do Espectro Autista/terapia , Cognição , Projetos Piloto , Incerteza
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