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1.
PLoS Biol ; 20(2): e3001541, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35167585

RESUMEN

Organizing sensory information into coherent perceptual objects is fundamental to everyday perception and communication. In the visual domain, indirect evidence from cortical responses suggests that children with autism spectrum disorder (ASD) have anomalous figure-ground segregation. While auditory processing abnormalities are common in ASD, especially in environments with multiple sound sources, to date, the question of scene segregation in ASD has not been directly investigated in audition. Using magnetoencephalography, we measured cortical responses to unattended (passively experienced) auditory stimuli while parametrically manipulating the degree of temporal coherence that facilitates auditory figure-ground segregation. Results from 21 children with ASD (aged 7-17 years) and 26 age- and IQ-matched typically developing children provide evidence that children with ASD show anomalous growth of cortical neural responses with increasing temporal coherence of the auditory figure. The documented neurophysiological abnormalities did not depend on age, and were reflected both in the response evoked by changes in temporal coherence of the auditory scene and in the associated induced gamma rhythms. Furthermore, the individual neural measures were predictive of diagnosis (83% accuracy) and also correlated with behavioral measures of ASD severity and auditory processing abnormalities. These findings offer new insight into the neural mechanisms underlying auditory perceptual deficits and sensory overload in ASD, and suggest that temporal-coherence-based auditory scene analysis and suprathreshold processing of coherent auditory objects may be atypical in ASD.


Asunto(s)
Percepción Auditiva/fisiología , Trastorno del Espectro Autista/fisiopatología , Sincronización Cortical/fisiología , Potenciales Evocados Auditivos/fisiología , Estimulación Acústica/métodos , Adolescente , Trastorno del Espectro Autista/diagnóstico , Trastorno del Espectro Autista/psicología , Niño , Femenino , Humanos , Magnetoencefalografía/métodos , Masculino , Tiempo de Reacción/fisiología
2.
Cereb Cortex ; 34(13): 40-49, 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38696607

RESUMEN

Attentional reorienting is dysfunctional not only in children with autism spectrum disorder (ASD), but also in infants who will develop ASD, thus constituting a potential causal factor of future social interaction and communication abilities. Following the research domain criteria framework, we hypothesized that the presence of subclinical autistic traits in parents should lead to atypical infants' attentional reorienting, which in turn should impact on their future socio-communication behavior in toddlerhood. During an attentional cueing task, we measured the saccadic latencies in a large sample (total enrolled n = 89; final sample n = 71) of 8-month-old infants from the general population as a proxy for their stimulus-driven attention. Infants were grouped in a high parental traits (HPT; n = 23) or in a low parental traits (LPT; n = 48) group, according to the degree of autistic traits self-reported by their parents. Infants (n = 33) were then longitudinally followed to test their socio-communicative behaviors at 21 months. Results show a sluggish reorienting system, which was a longitudinal predictor of future socio-communicative skills at 21 months. Our combined transgenerational and longitudinal findings suggest that the early functionality of the stimulus-driven attentional network-redirecting attention from one event to another-could be directly connected to future social and communication development.


Asunto(s)
Atención , Padres , Humanos , Masculino , Femenino , Lactante , Atención/fisiología , Padres/psicología , Trastorno del Espectro Autista/fisiopatología , Trastorno del Espectro Autista/psicología , Conducta Social , Comunicación , Estudios Longitudinales , Trastorno Autístico/psicología , Trastorno Autístico/fisiopatología , Señales (Psicología) , Movimientos Sacádicos/fisiología , Adulto
3.
Cereb Cortex ; 34(13): 172-186, 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38696606

RESUMEN

Individuals with autism spectrum disorder (ASD) experience pervasive difficulties in processing social information from faces. However, the behavioral and neural mechanisms underlying social trait judgments of faces in ASD remain largely unclear. Here, we comprehensively addressed this question by employing functional neuroimaging and parametrically generated faces that vary in facial trustworthiness and dominance. Behaviorally, participants with ASD exhibited reduced specificity but increased inter-rater variability in social trait judgments. Neurally, participants with ASD showed hypo-activation across broad face-processing areas. Multivariate analysis based on trial-by-trial face responses could discriminate participant groups in the majority of the face-processing areas. Encoding social traits in ASD engaged vastly different face-processing areas compared to controls, and encoding different social traits engaged different brain areas. Interestingly, the idiosyncratic brain areas encoding social traits in ASD were still flexible and context-dependent, similar to neurotypicals. Additionally, participants with ASD also showed an altered encoding of facial saliency features in the eyes and mouth. Together, our results provide a comprehensive understanding of the neural mechanisms underlying social trait judgments in ASD.


Asunto(s)
Trastorno del Espectro Autista , Encéfalo , Reconocimiento Facial , Imagen por Resonancia Magnética , Percepción Social , Humanos , Trastorno del Espectro Autista/fisiopatología , Trastorno del Espectro Autista/diagnóstico por imagen , Trastorno del Espectro Autista/psicología , Masculino , Femenino , Adulto , Adulto Joven , Reconocimiento Facial/fisiología , Encéfalo/fisiopatología , Encéfalo/diagnóstico por imagen , Juicio/fisiología , Mapeo Encefálico , Adolescente
4.
N Engl J Med ; 385(16): 1462-1473, 2021 10 14.
Artículo en Inglés | MEDLINE | ID: mdl-34644471

RESUMEN

BACKGROUND: Experimental studies and small clinical trials have suggested that treatment with intranasal oxytocin may reduce social impairment in persons with autism spectrum disorder. Oxytocin has been administered in clinical practice to many children with autism spectrum disorder. METHODS: We conducted a 24-week, placebo-controlled phase 2 trial of intranasal oxytocin therapy in children and adolescents 3 to 17 years of age with autism spectrum disorder. Participants were randomly assigned in a 1:1 ratio, with stratification according to age and verbal fluency, to receive oxytocin or placebo, administered intranasally, with a total target dose of 48 international units daily. The primary outcome was the least-squares mean change from baseline on the Aberrant Behavior Checklist modified Social Withdrawal subscale (ABC-mSW), which includes 13 items (scores range from 0 to 39, with higher scores indicating less social interaction). Secondary outcomes included two additional measures of social function and an abbreviated measure of IQ. RESULTS: Of the 355 children and adolescents who underwent screening, 290 were enrolled. A total of 146 participants were assigned to the oxytocin group and 144 to the placebo group; 139 and 138 participants, respectively, completed both the baseline and at least one postbaseline ABC-mSW assessments and were included in the modified intention-to-treat analyses. The least-squares mean change from baseline in the ABC-mSW score (primary outcome) was -3.7 in the oxytocin group and -3.5 in the placebo group (least-squares mean difference, -0.2; 95% confidence interval, -1.5 to 1.0; P = 0.61). Secondary outcomes generally did not differ between the trial groups. The incidence and severity of adverse events were similar in the two groups. CONCLUSIONS: This placebo-controlled trial of intranasal oxytocin therapy in children and adolescents with autism spectrum disorder showed no significant between-group differences in the least-squares mean change from baseline on measures of social or cognitive functioning over a period of 24 weeks. (Funded by the National Institute of Child Health and Human Development; SOARS-B ClinicalTrials.gov number, NCT01944046.).


Asunto(s)
Trastorno del Espectro Autista/tratamiento farmacológico , Oxitocina/administración & dosificación , Conducta Social , Administración Intranasal , Adolescente , Trastorno del Espectro Autista/psicología , Niño , Preescolar , Método Doble Ciego , Femenino , Humanos , Análisis de los Mínimos Cuadrados , Masculino , Oxitocina/efectos adversos , Oxitocina/uso terapéutico , Habilidades Sociales , Insuficiencia del Tratamiento
5.
J Pediatr ; 269: 114004, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38447756

RESUMEN

OBJECTIVE: To examine clinical correlates and prevalence of food selectivity (FS) - ie, self-restricted diet, reluctance to try new foods - in children with autism spectrum disorder (ASD) ascertained from a general outpatient autism clinic. STUDY DESIGN: A multidisciplinary team (pediatric nurse practitioner, psychologist and dietitian) assessed medical and psychosocial histories and dietary habits in 103 children with ASD (mean age = 5.8 ± 2.2 years; range 2-10). Parents rated child mealtime behavior on the Brief Autism Mealtime Behavior Inventory (BAMBI) and disruptive behavior on the Aberrant Behavior Checklist (ABC). Height and weight measurements were collected. Children were classified as FS or no FS based on parent reported intake and mealtime behavior. A 24-hour dietary recall was used to record intake percentages < 80%. Logistic regression and multivariable modeling were used to evaluate clinical correlates with FS. RESULTS: Of 103 children, 45.6% (n = 47) were classified as FS; 54.4% (n = 56) no FS. After adjusting for potential confounders, the odds of FS increased by 1.91 (95% CI: 1.38, 2.64, P < .001) for every half-SD increase in BAMBI total score and by 1.35 (95% CI: 1.05, 1.74, P = .020) for every half-SD increase in ABC Hyperactivity/Noncompliance. No group differences in anthropometrics or nutritional intake were identified. CONCLUSIONS: Food selectivity (FS) in children with ASD was strongly associated with greater severity of disruptive mealtime and hyperactivity/noncompliance behaviors. FS was not associated with anthropometrics or nutritional intake.


Asunto(s)
Trastorno del Espectro Autista , Humanos , Trastorno del Espectro Autista/psicología , Trastorno del Espectro Autista/epidemiología , Masculino , Femenino , Niño , Preescolar , Prevalencia , Conducta Alimentaria , Preferencias Alimentarias
6.
Br J Psychiatry ; 224(4): 127-131, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38362636

RESUMEN

BACKGROUND: There are increasing calls for neurodivergent peoples' involvement in research into neurodevelopmental conditions. So far, however, this has tended to be achieved only through membership of external patient and public involvement (PPI) panels. The Regulating Emotions - Strengthening Adolescent Resilience (RE-STAR) programme is building a new participatory model of translational research that places young people with diagnoses of attention-deficit hyperactivity disorder (ADHD) and autism at the heart of the research team so that they can contribute to shaping and delivering its research plan. AIMS: To outline the principles on which the RE-STAR participatory model is based and describe its practical implementation and benefits, especially concerning the central role of members of the Youth Researcher Panel (Y-RPers). METHOD: The model presented is a culmination of a 24-month process during which Y-RPers moved from advisors to co-researchers integrated within RE-STAR. It is shaped by the principles of co-intentionality. The account here was agreed following multiple iterative cycles of collaborative discussion between academic researchers, Y-RPers and other stakeholders. RESULTS: Based on our collective reflections we offer general guidance on how to effectively integrate young people with diagnoses of ADHD and/or autism into the core of the translational research process. We also describe the specific theoretical, methodological and analytical benefits of Y-RPer involvement in RE-STAR. CONCLUSIONS: Although in its infancy, RE-STAR has demonstrated the model's potential to enrich translational science in a way that can change our understanding of the relationship between autism, ADHD and mental health. When appropriately adapted we believe the model can be applied to other types of neurodivergence and/or mental health conditions.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno del Espectro Autista , Trastorno Autístico , Trastornos Generalizados del Desarrollo Infantil , Niño , Adolescente , Humanos , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno del Espectro Autista/psicología , Ciencia Traslacional Biomédica
7.
Psychol Med ; 54(6): 1102-1112, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37997447

RESUMEN

BACKGROUND: COVID-19 lockdowns increased the risk of mental health problems, especially for children with autism spectrum disorder (ASD). However, despite its importance, little is known about the protective factors for ASD children during the lockdowns. METHODS: Based on the Shanghai Autism Early Developmental Cohort, 188 ASD children with two visits before and after the strict Omicron lockdown were included; 85 children were lockdown-free, while 52 and 51 children were under the longer and the shorter durations of strict lockdown, respectively. We tested the association of the lockdown group with the clinical improvement and also the modulation effects of parent/family-related factors on this association by linear regression/mixed-effect models. Within the social brain structures, we examined the voxel-wise interaction between the grey matter volume and the identified modulation effects. RESULTS: Compared with the lockdown-free group, the ASD children experienced the longer duration of strict lockdown had less clinical improvement (ß = 0.49, 95% confidence interval (CI) [0.19-0.79], p = 0.001) and this difference was greatest for social cognition (2.62 [0.94-4.30], p = 0.002). We found that this association was modulated by parental agreeableness in a protective way (-0.11 [-0.17 to -0.05], p = 0.002). This protective effect was enhanced in the ASD children with larger grey matter volumes in the brain's mentalizing network, including the temporal pole, the medial superior frontal gyrus, and the superior temporal gyrus. CONCLUSIONS: This longitudinal neuroimaging cohort study identified that the parental agreeableness interacting with the ASD children's social brain development reduced the negative impact on clinical symptoms during the strict lockdown.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , COVID-19 , Niño , Humanos , Trastorno del Espectro Autista/epidemiología , Trastorno del Espectro Autista/psicología , Estudios de Cohortes , Factores Protectores , COVID-19/prevención & control , Control de Enfermedades Transmisibles , China/epidemiología
8.
Mol Psychiatry ; 28(9): 3751-3759, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37848709

RESUMEN

Pupillary response, an important process in visual perception and social and emotional cognition, has been widely studied for understanding the neural mechanisms of neuropsychiatric disorders. However, there have been few studies on pupil response to social and non-social stimuli in animal models of neurodevelopmental disorders including autism spectrum disorder (ASD) and attention deficit hyperactivity disorder. Here, we developed a pupilometer using a robust eye feature-detection algorithm for real-time pupillometry in dogs. In a pilot study, we found that a brief light flash induced a less-pronounced and slower pupil dilation response in gene-edited dogs carrying mutations in Shank3; mutations of its ortholog in humans were repeatedly identified in ASD patients. We further found that obnoxious, loud firecracker sound of 120 dB induced a stronger and longer pupil dilation response in Shank3 mutant dogs, whereas a high reward food induced a weaker pupillary response in Shank3 mutants than in wild-type control dogs. In addition, we found that Shank3 mutants showed compromised pupillary synchrony during dog-human interaction. These findings of altered pupil response in Shank3 mutant dogs recapitulate the altered sensory responses in ASD patients. Thus, this study demonstrates the validity and value of the pupilometer for dogs, and provides an effective paradigm for studying the underlying neural mechanisms of ASD and potentially other psychiatric disorders.


Asunto(s)
Trastorno del Espectro Autista , Humanos , Perros , Animales , Trastorno del Espectro Autista/genética , Trastorno del Espectro Autista/psicología , Pupila/fisiología , Proyectos Piloto , Emociones , Modelos Animales de Enfermedad
9.
Cell Mol Biol (Noisy-le-grand) ; 70(6): 66-72, 2024 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-38836680

RESUMEN

This study aimed to investigate the mechanism of the effect of TREM2 on cognitive function in autistic mice. TREM2 overexpression and knockdown viruses were given to autism spectrum disorder (ASD) mice and BV2 microglia cell line. To assess cognitive performance, all groups of mice took part in the open field, new object recognition, Morris water maze, and three-box social experiments. Double immunofluorescence labeling demonstrated co-localization of LC3II and NeuN. Proteins from the PI3K/Akt/mTOR pathway were identified. In vivo, behavior studies revealed that TREM2 could successfully improve ASD mice's social interaction and cognitive performance. Besides, we discovered that TREM2 could increase autophagy in ASD mice. In vitro, overexpressing TREM2 reduced the expression of PI3K/AKT/mTOR pathway proteins, whereas knocking down TREM2 increased the expression of PI3K/AKT/mTOR pathway proteins. In conclusion, TREM2 could inhibit PI3K/Akt/mTOR signaling pathway, enhance autophagy, and improve the social communication ability and cognitive function of ASD mice.


Asunto(s)
Autofagia , Cognición , Glicoproteínas de Membrana , Microglía , Fosfatidilinositol 3-Quinasas , Proteínas Proto-Oncogénicas c-akt , Receptores Inmunológicos , Transducción de Señal , Serina-Treonina Quinasas TOR , Animales , Cognición/fisiología , Glicoproteínas de Membrana/metabolismo , Glicoproteínas de Membrana/genética , Fosfatidilinositol 3-Quinasas/metabolismo , Receptores Inmunológicos/metabolismo , Receptores Inmunológicos/genética , Serina-Treonina Quinasas TOR/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Ratones , Microglía/metabolismo , Masculino , Trastorno Autístico/metabolismo , Trastorno Autístico/genética , Trastorno del Espectro Autista/metabolismo , Trastorno del Espectro Autista/genética , Trastorno del Espectro Autista/psicología , Modelos Animales de Enfermedad , Conducta Animal , Línea Celular , Ratones Endogámicos C57BL , Conducta Social
10.
CNS Spectr ; 29(1): 10-25, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-37539695

RESUMEN

The prevalence of autism spectrum disorder (ASD) continues to see a trend upward with a noticeable increase to 1 in 36 children less than 8 years of age in the recent MMWR. There are many factors linked to the substantially increased burden of seeking mental health services, and clinically these individuals are likely to present for impairments associated with co-occurring conditions. The advances in cutting-edge research and the understanding of co-occurring conditions in addition to psychosocial interventions have provided a window of opportunity for psychopharmacological interventions given the limited availability of therapeutics for core symptomatology. The off-label psychopharmacological treatments for these co-occurring conditions are central to clinical practice. However, the scattered evidence remains an impediment for practitioners to systematically utilize these options. The review collates the crucial scientific literature to provide stepwise treatment alternatives for individuals with ASD; with an aim to lead practitioners in making informed and shared decisions. There are many questions about the safety and tolerability of off-label medications; however, it is considered the best practice to utilize the available empirical data in providing psychoeducation for patients, families, and caregivers. The review also covers experimental medications and theoretical underpinnings to enhance further experimental studies. In summary, amidst the growing clinical needs for individuals with ASD and the lack of approved clinical treatments, the review addresses these gaps with a practical guide to appraise the risk and benefits of off-label medications.


Asunto(s)
Trastorno del Espectro Autista , Niño , Humanos , Trastorno del Espectro Autista/tratamiento farmacológico , Trastorno del Espectro Autista/psicología , Uso Fuera de lo Indicado , Prevalencia
11.
Nature ; 560(7720): 589-594, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-30089910

RESUMEN

Dysfunction in prosocial interactions is a core symptom of autism spectrum disorder. However, the neural mechanisms that underlie sociability are poorly understood, limiting the rational development of therapies to treat social deficits. Here we show in mice that bidirectional modulation of the release of serotonin (5-HT) from dorsal raphe neurons in the nucleus accumbens bidirectionally modifies sociability. In a mouse model of a common genetic cause of autism spectrum disorder-a copy number variation on chromosome 16p11.2-genetic deletion of the syntenic region from 5-HT neurons induces deficits in social behaviour and decreases dorsal raphe 5-HT neuronal activity. These sociability deficits can be rescued by optogenetic activation of dorsal raphe 5-HT neurons, an effect requiring and mimicked by activation of 5-HT1b receptors in the nucleus accumbens. These results demonstrate an unexpected role for 5-HT action in the nucleus accumbens in social behaviours, and suggest that targeting this mechanism may prove therapeutically beneficial.


Asunto(s)
Trastorno del Espectro Autista/psicología , Trastorno del Espectro Autista/terapia , Núcleo Accumbens/metabolismo , Serotonina/metabolismo , Conducta Social , Animales , Trastorno del Espectro Autista/genética , Trastorno del Espectro Autista/metabolismo , Deleción Cromosómica , Cromosomas Humanos Par 16/genética , Cromosomas de los Mamíferos/genética , Modelos Animales de Enfermedad , Núcleo Dorsal del Rafe/citología , Núcleo Dorsal del Rafe/metabolismo , Humanos , Masculino , Ratones , Vías Nerviosas , Núcleo Accumbens/citología , Optogenética , Sintenía/genética
12.
Cereb Cortex ; 33(10): 6320-6334, 2023 05 09.
Artículo en Inglés | MEDLINE | ID: mdl-36573438

RESUMEN

Difficulty with attention is an important symptom in many conditions in psychiatry, including neurodiverse conditions such as autism. There is a need to better understand the neurobiological correlates of attention and leverage these findings in healthcare settings. Nevertheless, it remains unclear if it is possible to build dimensional predictive models of attentional state in a sample that includes participants with neurodiverse conditions. Here, we use 5 datasets to identify and validate functional connectome-based markers of attention. In dataset 1, we use connectome-based predictive modeling and observe successful prediction of performance on an in-scan sustained attention task in a sample of youth, including participants with a neurodiverse condition. The predictions are not driven by confounds, such as head motion. In dataset 2, we find that the attention network model defined in dataset 1 generalizes to predict in-scan attention in a separate sample of neurotypical participants performing the same attention task. In datasets 3-5, we use connectome-based identification and longitudinal scans to probe the stability of the attention network across months to years in individual participants. Our results help elucidate the brain correlates of attentional state in youth and support the further development of predictive dimensional models of other clinically relevant phenotypes.


Asunto(s)
Atención , Trastorno del Espectro Autista , Encéfalo , Conectoma , Humanos , Adolescente , Trastorno del Espectro Autista/fisiopatología , Trastorno del Espectro Autista/psicología , Conjuntos de Datos como Asunto , Masculino , Femenino , Encéfalo/fisiopatología , Encéfalo/ultraestructura
13.
Dermatology ; 240(1): 13-25, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37939694

RESUMEN

BACKGROUND: Atopic dermatitis (AD) shares similarities with attention deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) regarding pathogenesis involving neuroinflammation and genetics. Nevertheless, evidence on the associations of AD with ADHD and/or ASD is inconclusive. This study aimed to systematically examine the existing evidence on the associations between AD, ADHD, and ASD. METHODS: The Meta-Analysis of Observational Studies in Epidemiology guideline was followed. We searched MEDLINE, Embase, Cochrane Library, and Web of Science databases from their respective inceptions to March 4, 2022. Observational studies providing adjusted estimates and/or prevalences for ADHD and ASD in patients with AD were enrolled. A random-effects model meta-analysis was conducted to calculate pooled odds ratios (ORs) and confidence intervals (CIs). Subgroup analyses according to AD severity, age, geographic location, and study design were performed. RESULTS: Overall, a total of 24 studies with 71,373,639 subjects were enrolled. Our meta-analysis demonstrated significant associations of AD with ADHD (pooled OR: 1.28; 95% CI: 1.18-1.40) and ASD (pooled OR: 1.87; 95% CI: 1.30-2.68). Subgroup analyses revealed that the associations for ADHD were the most prominent in studies evaluating severe AD patients as well as in studies focusing on school-age children and adolescents. Among patients with AD, the pooled prevalence of ADHD was 6.6%, and the respective prevalence of ASD was 1.6%. CONCLUSION: The evidence to date suggests significant associations of AD with ADHD and ASD. Psychiatric consultation and an interdisciplinary approach would benefit patients with AD presented with behavioral symptoms suggestive of ADHD or ASD.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno del Espectro Autista , Dermatitis Atópica , Niño , Adolescente , Humanos , Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Trastorno por Déficit de Atención con Hiperactividad/psicología , Dermatitis Atópica/complicaciones , Dermatitis Atópica/epidemiología , Dermatitis Atópica/diagnóstico , Trastorno del Espectro Autista/complicaciones , Trastorno del Espectro Autista/epidemiología , Trastorno del Espectro Autista/psicología
14.
Arch Sex Behav ; 53(5): 1873-1884, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38388763

RESUMEN

Gender dysphoria and autism spectrum disorder (ASD) co-occur at high rates. Yet, it is unknown whether gender dysphoria and ASD are associated with common or distinct neurobiological correlates or how they relate to experiences of gender-related body incongruence. Using the Social Responsiveness Scale, we assessed autistic traits in 99 transgender and 99 cisgender individuals and investigated their associations with gender-related body incongruence, measured via a visually based "Body Morph" test, and with cortical thickness in the brain. Autistic traits were significantly higher among transgender individuals, and those with higher autistic traits had higher body incongruence scoring. Among transgender individuals, higher autistic traits were linked with a thinner cortex bilaterally in the temporal pole and the superior and inferior temporal gyri. Autistic traits were only partly associated with cortical morphology patterns previously reported in transgender individuals; instead, they were primarily linked to temporal lobe areas mediating social cognition. While replicating the previous literature on the increased prevalence of autistic traits among transgender individuals, this study reports specific regions in the brains of transgender individuals where cortical thickness is associated with autistic traits.


Asunto(s)
Trastorno del Espectro Autista , Disforia de Género , Personas Transgénero , Humanos , Femenino , Masculino , Adulto , Trastorno del Espectro Autista/psicología , Disforia de Género/psicología , Personas Transgénero/psicología , Imagen por Resonancia Magnética , Adulto Joven , Encéfalo/diagnóstico por imagen , Imagen Corporal/psicología , Lóbulo Temporal/diagnóstico por imagen , Lóbulo Temporal/patología , Adolescente , Corteza Cerebral/diagnóstico por imagen , Corteza Cerebral/patología , Transexualidad/psicología , Trastorno Autístico/psicología
15.
BMC Psychiatry ; 24(1): 454, 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38890597

RESUMEN

BACKGROUND: Difficulties with inhibitory control have been identified in eating disorders (EDs) and neurodevelopmental disorders (NDs; including attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder), and there appear to be parallels between the expression of these impairments. It is theorised that impairments in inhibitory control within NDs may represent a unique vulnerability for eating disorders (EDs), and this same mechanism may contribute to poorer treatment outcomes. This review seeks to determine the state of the literature concerning the role of inhibitory control in the overlap of EDs and neurodivergence. METHOD: A scoping review was conducted to summarise extant research, and to identify gaps in the existing knowledge base. Scopus, Medline, PsycInfo, Embase, and ProQuest were systematically searched. Studies were included if the study measured traits of ADHD or autism, and symptoms of ED, and required participants to complete a performance task measure of inhibitory control. Where studies included a cohort with both an ND and ED, these results had to be reported separately from cohorts with a singular diagnosis. Studies were required to be published in English, within the last 10 years. RESULTS: No studies explored the relationship between autism and EDs using behavioural measures of inhibitory control. Four studies exploring the relationship between ADHD and EDs using behavioural measures of inhibitory control met selection criteria. These studies showed a multifaceted relationship between these conditions, with differences emerging between domains of inhibitory control. ADHD symptoms predicted poorer performance on measures of response inhibition in a non-clinical sample; this was not replicated in clinical samples, nor was there a significant association with EDs. Both ADHD and ED symptoms are associated with poor performance on attentional control measures; where these diagnoses were combined, performance was worse than for those with a singular diagnosis of ADHD. This was not replicated when compared to those with only ED diagnoses. CONCLUSION: Impairments in attentional control may represent a unique vulnerability for the development of an ED and contribute to poor treatment outcomes. Further research is needed to explore the role of inhibitory control in EDs, ADHD and autism, including the use of both self-report and behavioural measures to capture the domains of inhibitory control.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastornos de Alimentación y de la Ingestión de Alimentos , Inhibición Psicológica , Humanos , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Trastorno por Déficit de Atención con Hiperactividad/psicología , Trastorno del Espectro Autista/psicología , Trastornos del Neurodesarrollo/psicología
16.
BMC Psychiatry ; 24(1): 499, 2024 Jul 10.
Artículo en Inglés | MEDLINE | ID: mdl-38987737

RESUMEN

BACKGROUND: For people with autism spectrum disorder (ASD), daily life can be highly stressful with many unpredictable events that can evoke emotion dysregulation (ED): a strong difficulty with appropriately negative affect regulation. For some of the patients with ASD, treatment as usual does not prove to be effective for ED. They may be at risk of life-long impairment, development of other disorders and loss of motivation for most regular forms of therapy. A highly promising method that may prove effective for therapy-resistant individuals with ASD is Psychotherapy incorporating horses (PIH). PIH uses the interactions of the horse and the patients on the ground and does not include horseriding. While often met with prejudgment and scepticism, reports from parents and therapists as well as a recent systematic review suggest that PIH may have beneficial effects on youths with ASD. Therefore, we examine clinical outcomes both in the short and in the long terms of PIH offered to adolescents with ASD and severe ED despite regular therapy. METHODS: A total of 35 adolescents aged 11-18 years with ASD will receive PIH during 15 sessions once a week with randomization to five different groups differentiating in baseline phase from 2 to 6 weeks. PIH uses horses to promote social awareness and self-awareness as well as relationship management and self-management. The primary outcome is the response to treatment on the Emotion Dysregulation Index (EDI). The secondary outcome measures include ASD symptom severity, quality of life, self-esteem, global and family functioning, and goal attainment. Assessments take place at the baseline (T0), at the end of baseline phase A (T1), after completion of intervention phase B (T2), after the end of post-measurement phase C (T3) and after one year (T4). Qualitative interviews of participants, parents and therapists will be held to reveal facilitators and barriers of PIH and a cost-effectiveness study will be performed. DISCUSSION: This study aims at contributing to clinical practice for adolescents with ASD and persistent emotion regulation problems despite 1.5 year of treatment by offering Psychotherapy incorporating horses in a study with series of randomised, baseline controlled n-of-1 trials. TRIAL REGISTRATION: www. CLINICALTRIALS: gov NCT05200351, December 10th 2021.


Asunto(s)
Trastorno del Espectro Autista , Terapía Asistida por Caballos , Trastorno del Espectro Autista/terapia , Trastorno del Espectro Autista/psicología , Adolescente , Humanos , Niño , Animales , Terapía Asistida por Caballos/métodos , Caballos , Masculino , Femenino , Ensayos Clínicos Controlados Aleatorios como Asunto , Regulación Emocional , Psicoterapia/métodos
17.
BMC Psychiatry ; 24(1): 232, 2024 Mar 27.
Artículo en Inglés | MEDLINE | ID: mdl-38539137

RESUMEN

BACKGROUND: Neurodevelopmental disorders (NDDs), such as Attention-Deficit/Hyperactivity Disorder (ADHD), Autism Spectrum Disorder (ASD), and Tourette Syndrome (TS), have been extensively studied for their multifaceted impacts on social and emotional well-being. Recently, there has been growing interest in their potential relationship with fracture risks in adulthood. This study aims to explore the associations between these disorders and fracture rates, in order to facilitate better prevention and treatment. METHODS: Employing a novel approach, this study utilized Mendelian randomization (MR) analysis to investigate the complex interplay between ADHD, ASD, TS, and fractures. The MR framework, leveraging extensive genomic datasets, facilitated a systematic examination of potential causal relationships and genetic predispositions. RESULTS: The findings unveil intriguing bidirectional causal links between ADHD, ASD, and specific types of fractures. Notably, ADHD is identified as a risk factor for fractures, with pronounced associations in various anatomical regions, including the skull, trunk, and lower limbs. Conversely, individuals with specific fractures, notably those affecting the femur and lumbar spine, exhibit an increased genetic predisposition to ADHD and ASD. In this research, no correlation was found between TS and fractures, or osteoporosis.These results provide a genetic perspective on the complex relationships between NDDs and fractures, emphasizing the importance of early diagnosis, intervention, and a holistic approach to healthcare. CONCLUSION: This research sheds new light on the intricate connections between NDDs and fractures, offering valuable insights into potential risk factors and causal links. The bidirectional causal relationships between ADHD, ASD, and specific fractures highlight the need for comprehensive clinical approaches that consider both NDDs and physical well-being.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno del Espectro Autista , Fracturas Óseas , Trastornos del Neurodesarrollo , Osteoporosis , Síndrome de Tourette , Humanos , Trastorno del Espectro Autista/genética , Trastorno del Espectro Autista/psicología , Análisis de la Aleatorización Mendeliana , Trastornos del Neurodesarrollo/genética , Trastorno por Déficit de Atención con Hiperactividad/genética , Trastorno por Déficit de Atención con Hiperactividad/psicología , Osteoporosis/genética , Fracturas Óseas/genética , Predisposición Genética a la Enfermedad
18.
BMC Pediatr ; 24(1): 439, 2024 Jul 09.
Artículo en Inglés | MEDLINE | ID: mdl-38982431

RESUMEN

BACKGROUND: Parents of children on the autism spectrum often face great challenges in the care of their child. Early support tailored to families' individual needs is therefore crucial for the development and quality of life of both children on the autism spectrum and their families. However, to date it is unclear whether the support available meets the parents' needs. STUDY AIM: To investigate how the system of care, support, and therapies for children on the autism spectrum is perceived by their parents. METHOD: A total of 57 parents of Swiss children on the autism spectrum participated in an online survey, and 20 of them participated in additional semi-structured interviews. RESULTS: We found that parents of children on the autism spectrum may face substantial challenges and that social support is essential. Two thirds of the participating parents reported a long and difficult diagnostic process as challenging, and 60% expressed their need for closer follow-up after diagnosis and more support. Only one third of the parents stated that they manage their everyday lives well, whereas 17.5% felt exhausted, and more than half of the parents responded that they felt challenged. One fifth indicated that they had poor family support, and half reported substantial financial challenges. At the same time, most families also emphasize how important their neurodivergent children are to the family`s life together. CONCLUSION: It is important that primary pediatricians not only initiate the diagnostic process, but also assess the different needs of the different family independent of the diagnosis and, if necessary, initiate adequate measures or guide parents to institutions in charge. Parents who do not actively express their individual needs should nevertheless be advised about support services, including financial counseling. The positive aspects mentioned by families can be emphasized and used as resources to improve their quality of life.


Asunto(s)
Trastorno del Espectro Autista , Padres , Apoyo Social , Humanos , Padres/psicología , Trastorno del Espectro Autista/psicología , Trastorno del Espectro Autista/diagnóstico , Trastorno del Espectro Autista/terapia , Masculino , Femenino , Niño , Adulto , Suiza , Calidad de Vida , Preescolar , Adolescente , Necesidades y Demandas de Servicios de Salud , Evaluación de Necesidades , Persona de Mediana Edad , Encuestas y Cuestionarios
19.
Br J Clin Psychol ; 63(2): 197-212, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38214135

RESUMEN

OBJECTIVES: Assessment of autism-related behaviours (ARBs) in children has generally been limited to direct observations in clinical settings or informant-based reports. The widespread availability of video-streaming devices has made home observations of children's ARBs feasible. This approach could enable assessment of the generalization and durability of interventions and may be able to overcome methodological limitations of predominant current assessment approaches (response biases, limited sensitivity to treatment). DESIGN AND METHODS: Forty-four autistic children and their families participated in a repeated-measures study with a correlational design. Approximately 10 hr of unprompted behaviour at home were videorecorded over the course of a week (2 hr per day) for each participant. Gold standard measures of ARBs were also administered (ADOS-2 and ADI-R). Two home-based observational measures of ARBs utilizing streaming video were developed and evaluated: the ARCHER and the CHEERS. Trained independent evaluators made ratings on the ARCHER, CHEERS and an observational measure of parental responsiveness. RESULTS: Correlations with the ADOS-2 and ADI-R were .47 and .34 for ARCHER scores and .51 and .48 for CHEERS scores, respectively. In linear mixed models, more responsive parenting was associated with fewer ARBs on a daily basis. Children spent their afternoons engaged in many typical activities including electronics, homework and games with family members, and ARBs were more prominent in some of these contexts (e.g., electronics) than others (e.g., family games). CONCLUSIONS: Home-based observational assessment of ARBs may be useful for clinical and descriptive research.


Asunto(s)
Psicometría , Grabación en Video , Humanos , Masculino , Femenino , Niño , Psicometría/instrumentación , Preescolar , Relaciones Padres-Hijo , Trastorno Autístico/psicología , Padres/psicología , Conducta Infantil/psicología , Responsabilidad Parental/psicología , Trastorno del Espectro Autista/psicología , Técnicas de Observación Conductual/métodos
20.
J Clin Child Adolesc Psychol ; 53(3): 489-502, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38551850

RESUMEN

OBJECTIVE: Social functioning can be defined according to three main components: social perception, social performance, and social knowledge. Although they are important in daily life relationships and in children's adaptation, these components have never been tested together in children and adolescents with Attention Deficit/Hyperactivity Disorder (ADHD) or with Autism Spectrum Disorder (ASD) using lab-based tasks. The present study used a cross-disorder approach to compare the performance of children with ADHD and ASD and non-diagnosed (ND) peers utilizing a task that involves these three fundamental social functioning components. METHODS: Two hundred and twenty-five Italian children (86% boys) aged between 8 and 16 (66 with a clinical diagnosis of ADHD; 51 with a clinical diagnosis of ASD, level 1; 108 ND children) were enrolled. The three groups were matched for age, gender, and IQ. Social functioning was assessed using a lab-based task, including videos of problematic interactions among peers, created ad hoc for the study, and a semi-structured interview based on the Social Information Processing model. RESULTS: Data were analyzed using one-way ANOVAs and multinomial mixed effects models. Our findings suggested that both groups with ADHD and ASD presented social functioning difficulties in comparison to ND children. However, a different pattern of performance emerged. Children with ADHD showed higher difficulties in social performance than those with ASD, whereas autistic children revealed more difficulties in social perception and in some aspects of social knowledge. CONCLUSIONS: Our findings have important clinical implications for assessment, intervention, and differential diagnosis, and should encourage clinicians to investigate different aspects of social functioning and identify specific strengths and weaknesses in each social profile.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno del Espectro Autista , Humanos , Trastorno por Déficit de Atención con Hiperactividad/psicología , Masculino , Trastorno del Espectro Autista/psicología , Femenino , Niño , Adolescente , Percepción Social , Conducta Social , Interacción Social , Habilidades Sociales , Grupo Paritario
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