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1.
Res Dev Disabil ; 152: 104796, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39047661

RESUMEN

BACKGROUND: Children with Down syndrome (DS) often need support building language, socialization, and regulation, yet few receive behavioral intervention for this. The Joint Attention, Symbolic Play, Engagement and Regulation (JASPER) intervention holds promise as a clinician-caregiver-mediated approach. AIMS: The aims of this pilot study were to (1) describe the behavioral phenotype of children with DS (2) quantify change in child engagement following JASPER receipt, (3) measure caregiver adoption of JASPER strategies, and (4) generate hypotheses and directions for future research. METHODS AND PROCEDURES: Sixteen toddlers with DS and their caregivers enrolled in the study. Dyads were randomly assigned to one of two conditions: immediate intervention or waitlist control. During the COVID-19 pandemic, intervention was delivered remotely. OUTCOMES AND RESULTS: Caregivers learned to implement JASPER strategies and pilot data suggest improvements in joint engagement and regulation during play. Case series data show individual heterogeneity of intervention response. Remote intervention delivery may be associated with greater participant retention. CONCLUSIONS AND IMPLICATIONS: JASPER may be a viable treatment option to improve joint engagement and emotion regulation in young children with DS. Parents appear receptive to learning and implementing JASPER strategies at home. Remote JASPER delivery may improve participation in research or treatment programs.


Asunto(s)
Síndrome de Down , Humanos , Síndrome de Down/psicología , Proyectos Piloto , Masculino , Femenino , Preescolar , COVID-19/psicología , Atención , Regulación Emocional , Cuidadores/psicología , Lactante , Juego e Implementos de Juego/psicología , Terapia Conductista/métodos , SARS-CoV-2 , Socialización
2.
Infant Behav Dev ; 76: 101952, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38678861

RESUMEN

Despite important advancements into the early detection of autism, there are still few empirically supported interventions for children under the age of two years who are showing early signs. Caregiver-mediated interventions have gained in popularity as a method for delivering support to the child and family. The current study builds on current work by enrolling a comparatively large cohort of infants (ages 12-22 months of age) displaying early signs of autism into a randomized controlled intervention program. Infants and parents received a group-based program using a standard early childhood curriculum. In addition, all families were randomly assigned to receive parent training in the form of either parent-mediated Joint Attention Symbolic Play Engagement and Regulation (JASPER) training or psychoeducation. Infants in both classrooms made substantial gains in social-communication, play, and cognition during a brief, 8-week period. All infants gained over an average of 10 points in DQ and increased in standardized measures of social-communication and play, with these gains maintaining at a 2-month follow-up visit. The classroom that also received JASPER increased in child initiated joint engagement and play level during dyadic interactions with their parents, while the classroom that received psychoeducation increased in joint attention during a standardized assessment delivered by an independent assessor. Infant familial risk for autism (older sibling with autism) also moderated the effect of treatment on child initiated joint engagement where infants in the JASPER classroom without familial risk made the most gains from baseline to exit of the program. This study highlights the promise of intervening at the earliest stages to promote positive outcomes for children and families.


Asunto(s)
Padres , Humanos , Masculino , Lactante , Femenino , Padres/psicología , Trastorno Autístico/psicología , Intervención Educativa Precoz/métodos , Juego e Implementos de Juego , Atención/fisiología , Conducta Social , Comunicación , Trastorno del Espectro Autista/psicología , Relaciones Padres-Hijo , Resultado del Tratamiento
3.
J Autism Dev Disord ; 2023 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-37796387

RESUMEN

Play is critical in the development of cognitive and language skills in young children with autism; however, few studies have examined the impact of the intervention on the development of play skills. The current study aims to address the change in developmental skills, including play after participation in the JASPER intervention, and to examine the initiation of joint attention as a moderator of the effect of treatment on changes in play skills. The study included 109 preschool-age children who participated in the JASPER intervention and examined changes in developmental skills, including play skills. Children who received JASPER improved significantly in both play diversity (F(1,99) = 4.89, p = 0.029, ES = 0.22) and complexity (F(1,98) = 5.21, p = 0.025; ES = 0.23) compared to children in control conditions. These gains in play skills were associated with concurrent improvements in cognition and communication skills. Additionally, children with more initiations of joint attention skills at entry made greater progress in play diversity (F(1,97) = 15.85, p < 0.001 ES = 0.40) and complexity (p = 0.096). Play and joint attention skills are critical intervention targets and outcomes for children with autism.

4.
Genome Biol Evol ; 15(7)2023 07 03.
Artículo en Inglés | MEDLINE | ID: mdl-37364298

RESUMEN

Stalk-eyed flies in the genus Teleopsis carry selfish genetic elements that induce sex ratio (SR) meiotic drive and impact the fitness of male and female carriers. Here, we assemble and describe a chromosome-level genome assembly of the stalk-eyed fly, Teleopsis dalmanni, to elucidate patterns of divergence associated with SR. The genome contains tens of thousands of transposable element (TE) insertions and hundreds of transcriptionally and insertionally active TE families. By resequencing pools of SR and ST males using short and long reads, we find widespread differentiation and divergence between XSR and XST associated with multiple nested inversions involving most of the SR haplotype. Examination of genomic coverage and gene expression data revealed seven X-linked genes with elevated expression and coverage in SR males. The most extreme and likely drive candidate involves an XSR-specific expansion of an array of partial copies of JASPer, a gene necessary for maintenance of euchromatin and associated with regulation of TE expression. In addition, we find evidence for rapid protein evolution between XSR and XST for testis expressed and novel genes, that is, either recent duplicates or lacking a Dipteran ortholog, including an X-linked duplicate of maelstrom, which is also involved in TE silencing. Overall, the evidence suggests that this ancient XSR polymorphism has had a variety of impacts on repetitive DNA and its regulation in this species.


Asunto(s)
Dípteros , Cromosoma X , Animales , Femenino , Masculino , Cromosoma X/genética , Dípteros/genética , Razón de Masculinidad , Ojo , Testículo
5.
Int J Dev Disabil ; 69(3): 379-385, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37213585

RESUMEN

Autistic children are less likely to be jointly engaged with a play partner than nonautistic children, negatively impacting social communication development. Promoting joint engagement during play can be an important target for educators of autistic students, but educator perceptions of autistic students may affect their interactions with students. This secondary data analysis investigated educator perceptions of the behaviors of their autistic students, their relationship on educator behavior, and their relationship on the implementation of an intervention promoting joint engagement. Participants included 66 autistic preschool students, and twelve educators from six preschools. Schools were randomized to educator training or a waitlist. Before training, educators rated their students' controllability over autism related behaviors. To observe educator behavior, they were filmed playing for ten minutes with students, before and after receiving training. Ratings of controllability were positively correlated with cognitive scores, and negatively correlated with ADOS (Autism Diagnostic Observation Schedule) comparison scores. Furthermore, educator ratings of controllability predicted joint engagement strategies used by educators during play. Educators tended to use strategies promoting joint engagement for students perceived as more able to control their autism spectrum disorder behavior. Among educators that received JASPER (Joint Attention, Symbolic Play, Engagement, and Regulation) training, ratings of controllability did not predict changes in strategy scores after training. Educators were able to learn and implement new joint engagement strategies despite their initial perceptions.

6.
Autism Res ; 16(6): 1236-1246, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37070270

RESUMEN

Preschool autistic children with significant global developmental delays and very limited language skills are at high risk for remaining minimally verbal at entry into primary school. This study compared two early intervention models for improving social communication and spoken language outcomes in 164 children who received intervention in their community preschool program for 6 months, with a six-month follow-up. The primary outcome measure was a standardized language assessment, and secondary measures focused on social communication. Results indicated children on average made 6 months gain in language development in the active 6 months of intervention with no difference between intervention models. Children who initiated joint attention more frequently, or who had higher receptive language at baseline made more progress if assigned to receive JASPER, a naturalistic developmental behavioral intervention. Children who received Discrete Trial Training made greater spoken language progress from exit to follow-up. These findings suggest that progress can be made in autistic children who have very little spoken language and who receive targeted early interventions. Individual trajectories vary and depend in part on initial abilities in social communication and receptive language. Future research might consider methods to systematically personalize approaches to fit child characteristics and family preference. LAY SUMMARY: This study compared two different early intervention approaches for teaching spoken language to minimally verbal, globally delayed autistic preschoolers. Children were given an hour of therapy daily for 6 months and then reassessed 6 months later. The majority of the 164 participants were from historically excluded populations (low income and minority), and therapy was delivered in school community settings by expert clinicians. Results indicated that the participants made significant progress regardless of intervention approach: 6 months gain in standardized language scores over 6 months, but slower progress during the period after therapy ended. Children who initiated joint attention more frequently, or who had higher language understanding at baseline made more progress if assigned to receive JASPER, a naturalistic developmental behavioral intervention. Children who received Discrete Trial Training made greater language progress during 6-month period after therapy ended. These findings suggest that progress can be made in children with ASD who have very little spoken language and who receive targeted early interventions.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , Trastornos del Desarrollo del Lenguaje , Niño , Humanos , Preescolar , Trastorno Autístico/complicaciones , Trastorno Autístico/terapia , Trastorno del Espectro Autista/complicaciones , Trastorno del Espectro Autista/terapia , Comunicación , Desarrollo del Lenguaje , Trastornos del Desarrollo del Lenguaje/complicaciones , Trastornos del Desarrollo del Lenguaje/terapia
7.
J Autism Dev Disord ; 53(8): 3023-3033, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35678946

RESUMEN

Addressing factors that make it more likely for families to attrite from early intervention trials will allow researchers to ensure that families reap the full benefits of participation. This study was an analysis of 78 children (Mage = 18.38 months, SD = 5.78) at risk for autism participating in a university-based randomized controlled trial of two 8-week long early intervention programs. Overall, attrition through 8-weeks was low, approximately 13%, however by the one-year follow-up attrition rates were approximately 50%. The most consistent predictor of attrition was the distance that families had to travel to the university. These data highlight the importance of providing services and support (e.g., financial and logistic) during follow-up to families to maximize their participation. Clincaltrials.gov Identifier: NCT01874327, 6/11/2013.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , Humanos , Preescolar , Lactante , Comunicación , Intervención Educativa Precoz
8.
J Autism Dev Disord ; 2022 Oct 13.
Artículo en Inglés | MEDLINE | ID: mdl-36227446

RESUMEN

Due to core challenges in social communication experienced by many young children with autism, children on the spectrum who are also dual language learners (DLLs) may benefit from developmentally-appropriate language supports in school settings. The current study examined whether home language status moderated the effect of a play-based intervention, JASPER, delivered in the classroom, in children with autism. Fifty-nine preschool children with autism received JASPER over eight weeks. Children who received JASPER improved significantly more in their language skills from entry to exit than children in preschool as usual. Home language status moderated the effect of treatment on receptive language where children of diverse linguistic backgrounds made greater gains in receptive language.

9.
Autism ; 26(8): 2175-2187, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35420044

RESUMEN

LAY ABSTRACT: Children with autism spectrum disorder attending special education preschool classrooms may not receive support that addresses their core challenges, such as engagement and social communication. There are interventions designed to target these core challenges, like the play-based intervention known as Joint Attention, Symbolic Play, Engagement, and Regulation. Embedding strategies from an intervention like Joint Attention, Symbolic Play, Engagement, and Regulation into more traditional academic activities can help teachers target engagement and social communication throughout the school day. In the current study, we collaborated with special education preschool teachers to embed Joint Attention, Symbolic Play, Engagement, and Regulation strategies during small group time for moderate to severe disability students with autism spectrum disorder, 3-5 years of age. Compared to teachers implementing the standard preschool curriculum, teachers trained in Joint Attention, Symbolic Play, Engagement, and Regulation strategies effectively embedded these strategies in their small group activities, and their students were more likely to engage with peers during these activities. Supporting teachers to embed targeted strategies in academic activities can help them provide students more opportunities to engage with peers during the school day. Teachers can support their autistic students to interact appropriately with their peers. Unlike interventions that train peers to act as a teacher, embedding Joint Attention, Symbolic Play, Engagement, and Regulation strategies during small group academic activities facilitates naturalistic social interactions for autistic students.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , Niño , Preescolar , Humanos , Proyectos Piloto , Maestros , Estudiantes
10.
Autism Res ; 15(8): 1565-1575, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35437928

RESUMEN

Early intervention can provide a great benefit for children with autism spectrum disorder (ASD). However, no single intervention is effective for all children. Even when an intervention is effective overall, individual child response varies. Some children make incredible progress, and others make slow or no progress. Therefore, it is important that the field move towards developing methods to personalize intervention. Operationalizing meaningful change and predicting intervention response are critical steps in designing systematic and personalized early intervention. The present research used improvement in expressive language to group children that received a targeted social communication early intervention, Joint Attention, Symbolic Play, Engagement, and Regulation (JASPER), into super responders and slow responders. Using baseline data from traditional standardized assessments of cognition and behavioral data from validated experimental measures of play and social communication, we used conditional inference tree models to predict responder status. From a sample of 99 preschool age, limited language children with ASD, play diversity was the most significant predictor of responder status. Children that played functionally with a wider variety of toys had increased odds of being a super responder to JASPER. A combination of lower play diversity and impairments in fine motor abilities increased the odds of children being slow responders to JASPER. Results from the present study can inform future efforts to individualize intervention and systematic approaches to augmenting treatment in real time. LAY SUMMARY: To help us answer the question of for whom an intervention works best, we examined 99 children, age three to five, who qualified as being limited spoken language communicators, and received a targeted intervention for social communication and language. We used child characteristics before intervention to predict which children would improve their language the most and found that the ability to play appropriately with a wider variety of toys predicted the best improvements in expressive language. These findings will help better inform future work to individualize intervention based on the unique needs of each child.


Asunto(s)
Trastorno del Espectro Autista , Atención/fisiología , Trastorno del Espectro Autista/terapia , Niño , Preescolar , Intervención Educativa Precoz/métodos , Humanos , Lenguaje , Juego e Implementos de Juego
11.
Autism Res ; 15(2): 353-365, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34797038

RESUMEN

Traditional longitudinal modeling approaches require normally distributed data and do not account for sample heterogeneity. Parenting stress, in particular, can be difficult to model across time without transforming the data as it is usually high for caregivers of children with ASD. This study used novel linear quantile mixed models (LQMMs) to model non-normal parent stress scores across two caregiver-mediated interventions involving toddlers with ASD. The sample included 86 caregiver-child dyads who were randomized to either a parent-only psychoeducational intervention or hands-on parent training in a naturalistic developmental intervention. Child and parent-related domains of the Parenting Stress Index (PSI) were the primary outcomes in this study. The PSI was collected at entry, 10-week exit, 3-month follow-up, and 6-month follow-up periods. Separate LQMMs were used to model five specific quantiles ( τ=0.1,0.25,0.5,0.75,and0.9) of the two PSI domains across the complete intervention timeline. These five quantiles effectively modeled the entire conditional distribution of parenting stress scores. The LQMMs indicated that child-related parenting stress decreased across all quantiles within both interventions, with no difference in the rate of parenting stress change between the intervention groups. For parent-related parenting stress, the effect of intervention depended on the group's stress level; some parents increased their perceived stress within the hands-on intervention at the 3-month follow-up. Overall, this study demonstrated that the use of LQMMs yielded additional information, beyond traditional longitudinal models, regarding the relationship between parenting stress within two caregiver-mediated intervention protocols. This study also discussed the methodological contributions and potential future applications of LQMMs. LAY SUMMARY: This study used a newer longitudinal modeling technique to examine how parenting stress changed across two caregiver-mediated interventions for toddlers with ASD. Results showed that certain parents in the JASPER condition might require additional support as they exit the study and enter into their first follow-up period. It was also determined that this new modeling technique could be a valuable tool to analyze highly variable data often present in ASD intervention studies.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , Cuidadores , Preescolar , Humanos , Responsabilidad Parental , Padres
12.
Autism ; 26(3): 654-665, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-34961342

RESUMEN

LAY ABSTRACT: The next step for communication interventions for young children with autism include coaching/teaching for caregivers that have been tested in university clinics and testing these interventions in real world systems with early intervention providers who serve children and families in their communities. However, there are few projects that have tested how well the intervention can be transferred to community providers and what types of progress children and caregivers make in these services. This project took place in partnership with a community early intervention agency in the province of Ontario, Canada. The agency provided government-funded public health services. The agency was funded to take part in a pilot program to try out one of four early intervention models that included coaching for caregivers and was designed to support children's social engagement, play, and communication skills. The team decided to test two ways to start the intervention: (a) begin with observation of the practitioner for 4 weeks and then start coached practice with the child and (b) start coaching immediately. The team also tested two ways to support families for 3 months after intervention: (a) group booster sessions and (b) individual visits. The practitioners delivered the intervention well (M = 83%), and overall, caregivers and children made significant gains by the end of intervention in both observation + coaching and coaching. Attendance for follow-up boosters was variable with fewer families attending groups. More research is needed to test different strategies and roles to individualize interventions for caregivers with a range of goals and learning styles.


Asunto(s)
Trastorno del Espectro Autista , Tutoría , Cuidadores , Niño , Preescolar , Estudios de Seguimiento , Humanos , Ontario
13.
Autism Res ; 15(2): 284-295, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34800004

RESUMEN

Assessing improvements in social communication behaviors in minimally verbal children with autism spectrum disorder (ASD) is often challenging. The Clinical Global Impression Scale (CGI) is a 7-point scale that has been adapted so that clinicians can easily and quickly rate social communication behaviors. The current study evaluated the CGI-Improvement (CGI-I) subscale as a measure of social communication change in minimally verbal children with ASD. The sample included 54 minimally verbal school-age children with ASD enrolled in a social communication intervention trial. CGIs were rated by interventionists and the study coordinator at baseline and at Week 6 of intervention, and were compared to scores on the Communication Complexity Scale (CCS). Results indicated that CGI ratings corresponded with CCS scores at baseline and Week 6. Children who were rated as more severe on social communication at baseline demonstrated lower complexity of communication compared to those who were rated as less severe. Those who demonstrated fast response to intervention at Week 6 showed greater improvement in their joint attention than those who were slower responders. These results provide support for the utility and validity of the CGI-I as a measure of social communication change in minimally verbal children. This study tested the CGI, a clinician rating scale, with a group of children with ASD with limited language who received intervention to improve social interactions and communication. Children's CGI ratings were comparable to other assessments in measuring social communication. The CGI may be a useful tool for those interested in quickly and easily tracking changes in children's social communication over the course of treatment. LAY SUMMARY: This study tested the Clinical Global Impression (CGI), a clinician rating scale, with a group of children with ASD with limited language who received intervention to improve social interactions and communication. Children's CGI ratings were comparable to other assessments in measuring social communication. The CGI may be a useful tool for those interested in quickly and easily tracking changes in children's social communication over the course of treatment.


Asunto(s)
Trastorno del Espectro Autista , Atención , Trastorno del Espectro Autista/complicaciones , Trastorno del Espectro Autista/terapia , Niño , Comunicación , Humanos , Conducta Social
14.
Am J Intellect Dev Disabil ; 126(5): 421-434, 2021 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-34428271

RESUMEN

Family-centered practices that involve direct participation of caregivers as part of intervention is critical to effective early intervention. However, regularly scheduled, in person service delivery is not always possible in remote communities, prompting a need for adaptations to the delivery of services, such as the use of live video conferencing to coach caregivers in strategies to promote their children's development. In this study, caregivers and their children ages 2-9 with autism who were living in rural and remote Canadian communities were included. A concurrent multiple baseline design across participants was applied to examine the effects of live video conference caregiver coaching on children's time jointly engaged with caregivers and caregivers' intervention strategy implementation. Results indicated that all children demonstrated greater time jointly engaged and caregivers demonstrated greater use of strategies in comparison to baseline. The results of this study offer preliminary evidence of the effectiveness of real time video conference coaching for caregivers engaging their children with ASD in play.


Asunto(s)
Trastorno Autístico , Tutoría , Canadá , Cuidadores , Niño , Preescolar , Humanos , Tecnología
15.
Autism ; 25(8): 2370-2385, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34348479

RESUMEN

Naturalistic developmental behavioural interventions are promising approaches for young children with, or suspected of having, autism spectrum disorder. Joint attention, symbolic play, engagement and regulation intervention (JASPER) is a well-researched naturalistic developmental behavioural intervention but, to date, no reviews have specifically evaluated its effects. This systematic literature review examined the effects of JASPER intervention and its components on child, parent and educator outcomes. Of the 96 articles screened, 19 were eligible for inclusion in the review. Most studies found that children who received JASPER intervention showed significantly greater improvements in at least one outcome related to child joint attention, joint engagement, play skills and language skills compared to the comparison group. Implementation outcomes for parents and educators were generally positive. There were no consistent predictors or mediators of treatment effects. None of the studies met all of the quality indicators outlined by the Council of Exceptional Children, and the majority of outcome measures were classified as proximal. Overall, JASPER intervention appears promising in improving child outcomes directly targeted during treatment. More research is needed to determine whether it is also effective in improving a wider range of outcomes for children with autism spectrum disorder.Lay abstractInterventions which are delivered in natural contexts and use both developmental and behavioural techniques may be helpful for children with, or suspected of having, autism spectrum disorder. Joint attention, symbolic play, engagement and regulation (JASPER) is a type of intervention, which falls under this category. Although several studies have examined the effects of JASPER, this has not yet been summarised in a review. This systematic literature review examined the effects of JASPER intervention, and the techniques that make up JASPER, on child, parent and educator outcomes. We screened 96 articles and, of these, 19 were included in the review. Most studies found that children who received JASPER intervention showed significantly greater improvements in at least one outcome related to child joint attention, joint engagement, play skills, and language skills compared to children who did not receive JASPER intervention. Parents and educators were mostly able to use the JASPER techniques. There were no consistent child, parent, teacher or treatment characteristics that influenced the effects of the JASPER intervention. None of the studies met all of the indicators of being a good quality study outlined by the Council of Exceptional Children. Overall, JASPER intervention appears promising in improving child outcomes directly targeted during treatment. More research is needed to determine whether it is also effective in improving a wider range of outcomes for children with autism spectrum disorder.


Asunto(s)
Trastorno del Espectro Autista , Atención , Trastorno del Espectro Autista/tratamiento farmacológico , Terapia Conductista , Niño , Preescolar , Humanos , Relaciones Padres-Hijo , Padres
16.
J Child Psychol Psychiatry ; 62(10): 1228-1235, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33768537

RESUMEN

BACKGROUND: Social communication interventions benefit children with ASD in early childhood. However, the mechanisms behind such interventions have not been rigorously explored. This study examines the mechanism underlying a naturalistic developmental behavioral intervention, JASPER (Joint Attention, Symbolic Play, Engagement, and Regulation), delivered by educators in the community. Specifically, the analyses focus on the mediating effect of joint engagement on children's initiations of joint attention (IJA) skills and whether IJA postintervention are associated with later gains in children's receptive and expressive language. METHODS: One hundred seventy-nine children, age 2-5 years, were randomized to immediate JASPER treatment or waitlist (treatment as usual) control. Independent assessors blinded to time and treatment coded children's time jointly engaged and IJA during a 10-min teacher-child interaction at baseline, exit, and follow-up. Age-equivalent receptive and expressive language scores from the Mullen Scales of Early Learning were collected at baseline and follow-up. Mediation analyses with linear mixed models were used to explore the potential mediating effect of joint engagement on IJA. RESULTS: Joint engagement significantly mediated 69% of the intervention effect on young children's IJA and IJA predicted improvements in standardized language scores. CONCLUSIONS: Small but sustained changes in child-initiated joint engagement improved IJA, a core challenge in children with ASD, which in turn led to improvements in language.


Asunto(s)
Trastorno del Espectro Autista , Lenguaje , Atención , Trastorno del Espectro Autista/terapia , Preescolar , Comunicación , Intervención Educativa Precoz , Humanos
17.
Geobiology ; 19(3): 228-249, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33594795

RESUMEN

Modern marine hydrothermal vents occur in a wide variety of tectonic settings and are characterized by seafloor emission of fluids rich in dissolved chemicals and rapid mineral precipitation. Some hydrothermal systems vent only low-temperature Fe-rich fluids, which precipitate deposits dominated by iron oxyhydroxides, in places together with Mn-oxyhydroxides and amorphous silica. While a proportion of this mineralization is abiogenic, most is the result of the metabolic activities of benthic, Fe-oxidizing bacteria (FeOB), principally belonging to the Zetaproteobacteria. These micro-organisms secrete micrometer-scale stalks, sheaths, and tubes with a variety of morphologies, composed largely of ferrihydrite that act as sacrificial structures, preventing encrustation of the cells that produce them. Cultivated marine FeOB generally require neutral pH and microaerobic conditions to grow. Here, we describe the morphology and mineralogy of filamentous microstructures from a late Paleoproterozoic (1.74 Ga) jasper (Fe-oxide-silica) deposit from the Jerome area of the Verde mining district in central Arizona, USA, that resemble the branching tubes formed by some modern marine FeOB. On the basis of this comparison, we interpret the Jerome area filaments as having formed by FeOB on the deep seafloor, at the interface of weakly oxygenated seawater and low-temperature Fe-rich hydrothermal fluids. We compare the Jerome area filaments with other purported examples of Precambrian FeOB and discuss the implications of their presence for existing redox models of Paleoproterozoic oceans during the "Boring Billion."


Asunto(s)
Respiraderos Hidrotermales , Arizona , Hierro/análisis , Océanos y Mares , Oxidación-Reducción , Agua de Mar , Temperatura
18.
Int Orthod ; 18(2): 286-296, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32063473

RESUMEN

OBJECTIVE: This retrospective study aimed to compare the dentoskeletal and soft-tissue changes in Class II malocclusion patients treated with Jasper Jumper and Twin Force Bite Corrector associated with fixed orthodontic appliances. MATERIAL AND METHODS: The sample comprised 60 subjects divided into 3 groups. Patients with Class II malocclusion, mandibular retrusion, slight or no crowding and with no previous orthodontic treatment were eligible. Group 1 comprised 20 patients treated with the Jasper Jumper (JJ), with an initial age of 12.39 years. Group 2 comprised 20 patients treated with the Twin Force (TF), with an initial age of 11.83 years. The control group consisted of 20 untreated Class II subjects with an initial age of 12.13 years. Intergroup pretreatment comparisons were performed with One-way analysis of variance and intergroup treatment changes were compared with the Analysis of Covariance, both followed by Tukey test. RESULTS: The TF group showed greater increase in mandibular length (6.23mm±4.64, P=0.004) than the control group (2.94mm±1.75). The mandibular incisors in the experimental groups presented significantly greater labial inclination and protrusion than the control (Md1.NB; JJ: 4.19°±2.09; TF: 4.46°±6.83; control: 1.13°±2.08, P=0.000/Md1-NB; JJ: 1.95mm±1.45; TF: 1.74mm±1.79; control: 0.31mm±0.81, P=0.000). In addition, the treated groups also showed significantly improvement of the dental relationships (Overjet; JJ: -4.05mm±4.64; TF: -3.80mm±2.12; control: 0.05mm±1.12, P=0.000/Overbite; JJ: -2.52mm±1.46; TF: -2.93mm±2.13; control: -0.63mm±1.35, P=0.000). CONCLUSION: The Jasper Jumper and Twin Force associated to fixed appliances were effective in correcting Class II malocclusion with a combination of skeletal and dentoalveolar changes. However, the TF seems to provide more skeletal effects with greater maxillary growth restriction and mandibular length increase when compared to the JJ.


Asunto(s)
Aparatos Activadores , Maxilares/fisiología , Maloclusión Clase II de Angle/terapia , Avance Mandibular/instrumentación , Mucosa Bucal/fisiología , Adolescente , Análisis de Varianza , Niño , Femenino , Humanos , Maxilares/anatomía & histología , Masculino , Maloclusión Clase II de Angle/fisiopatología , Mandíbula/crecimiento & desarrollo , Diseño de Aparato Ortodóncico , Aparatos Ortodóncicos Fijos , Estudios Retrospectivos
19.
Nervenarzt ; 91(9): 808-813, 2020 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-31889216

RESUMEN

BACKGROUND: The psychopathological phenomenon of delusion appears almost every day in the routine clinical practice. Although making the diagnosis usually seems clear and simple, the accurate definition of delusion is even now a serious challenge and controversial discussion. This article therefore investigates whether and to what extent the Kantian term of God and his argument for God's existence can make a contribution to the psychopathological definition of delusion. METHOD: By analyzing Kant's primary literature, the special position of the predicate of existence is presented in order to give an explanation of Kant's term of God. Moreover, Kant's argument for the existence of God is elaborated in his critique of purely practical rationality. Finally, various approximations to a formal definition of delusion are proposed. RESULTS: It can be shown that there are numerous indications for a formal approach to characterize psychopathological delusion. Kant provides a formal logical explanation of the term of God; however, his proof of God is a moral practical one. CONCLUSION: A formal aspect in the definition of delusion appears useful. Jasper's criterion of the impossibility of the content of delusion can be critically questioned in terms of being unnecessary. The formal logical aspect in the Kantian term of God, not his moral argument for proof of God can make a contribution to the psychopathological definition of delusion in form of a dimension of the conditional.


Asunto(s)
Deluciones , Psicopatología , Deluciones/diagnóstico , Principios Morales
20.
Autism Res ; 12(9): 1423-1433, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31241851

RESUMEN

Efforts to decrease disparity in diagnosis and treatment for under-resourced children with developmental delays, such as autism spectrum disorder, have led to increased interest in developing programs in community settings. One potential setting that has already demonstrated feasibility in conducting universal screening is the childcare setting. The current study conducted developmental screening in a total of 116 children ages 16-80 months of age in an urban low-income community childcare center. Parents of 20 children who screened positive were enrolled in the intervention phase of the study, where children received a staff-delivered targeted early intervention or a waitlist control condition. Given the small and imbalanced sample sizes, confidence intervals from mixed effect models were used to measure changes across time for each group. Of the children who received treatment, there was an average increase in child initiated joint engagement, symbolic play, and language use. This study provides initial feasibility data for the implementation of a screening and early intervention program to service a predominantly low-resource and ethnically diverse population within the childcare system in a large metropolitan city. Autism Res 2019, 12: 1423-1433. © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Identifying and delivering treatment services for young children with developmental delays, such as autism spectrum disorder, may be most successful in community settings, especially for those children from under-resourced areas. This study found preliminary evidence that the childcare setting is a good place to conduct screening and deliver early interventions for children at risk for autism and other developmental delays.


Asunto(s)
Trastorno del Espectro Autista/diagnóstico , Trastorno del Espectro Autista/terapia , Guarderías Infantiles , Intervención Educativa Precoz/métodos , Niño , Preescolar , Discapacidades del Desarrollo/diagnóstico , Discapacidades del Desarrollo/terapia , Diagnóstico Precoz , Estudios de Factibilidad , Femenino , Humanos , Lactante , Los Angeles , Masculino
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