208 research outputs found

    Types and correlates of school non-attendance in students with autism spectrum disorders

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    School non-attendance in autism spectrum disorders (ASD) has received very little attention to date. The study aimed to provide a comprehensive description of school non-attendance in students with ASD. Through an online survey, parents of 486 children (mean age 11 years) reported on school attendance over one month, and reasons for instances of non-attendance. On average, students missed five days of school of a possible 23 days. Persistent non-attendance (absent on 10%+ of available sessions) occurred among 43% of students. School non-attendance was associated with child older age, not living in a two-parent household, parental unemployment and, especially, attending a mainstream school. School refusal accounted for 43% of non-attendance. School exclusion and school withdrawal each accounted for 9% of absences. Truancy was almost non-existent. Non-problematic absenteeism (mostly related to medical appointments and illness) accounted for 32% of absences. Non-problematic absenteeism was more likely among those with intellectual disability, school refusal was more likely among older students, and school exclusion was more likely among students from single-parent, unemployed, and well educated households. Findings suggest school non-attendance in ASD is a significant issue, and that it is important to capture detail about attendance patterns and reasons for school non-attendance

    A closer look at visually guided saccades in autism and Asperger\u27s disorder

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    Motor impairments have been found to be a significant clinical feature associated with autism and Asperger’s disorder (AD) in addition to core symptoms of communication and social cognition deficits. Motor deficits in high-functioning autism (HFA) and AD may differentiate these disorders, particularly with respect to the role of the cerebellum in motor functioning. Current neuroimaging and behavioural evidence suggests greater disruption of the cerebellum in HFA than AD. Investigations of ocular motor functioning have previously been used in clinical populations to assess the integrity of the cerebellar networks, through examination of saccade accuracy and the integrity of saccade dynamics. Previous investigations of visually guided saccades in HFA and AD have only assessed basic saccade metrics, such as latency, amplitude and gain, as well as peak velocity. We used a simple visually guided saccade paradigm to further characterize the profile of visually guided saccade metrics and dynamics in HFA and AD. It was found that children with HFA, but not AD, were more inaccurate across both small (5°) and large (10°) target amplitudes, and final eye position was hypometric at 10°. These findings suggest greater functional disturbance of the cerebellum in HFA than AD, and suggest fundamental difficulties with visual error monitoring in HFA

    Emotion recognition of static and dynamic faces in autism spectrum disorder

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    There is substantial evidence for facial emotion recognition (FER) deficits in autism spectrum disorder (ASD). The extent of this impairment, however, remains unclear, and there is some suggestion that clinical groups might benefit from the use of dynamic rather than static images. High-functioning individuals with ASD (n = 36) and typically developing controls (n = 36) completed a computerised FER task involving static and dynamic expressions of the six basic emotions. The ASD group showed poorer overall performance in identifying anger and disgust and were disadvantaged by dynamic (relative to static) stimuli when presented with sad expressions. Among both groups, however, dynamic stimuli appeared to improve recognition of anger. This research provides further evidence of specific impairment in the recognition of negative emotions in ASD, but argues against any broad advantages associated with the use of dynamic displays

    A case-control study of emotion regulation and school refusal in children and adolescents

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    Abstract The current study aimed to investigate emotion regulation (ER) strategy use in a sample of 21 clinic-referred children and adolescents (10-14 years old) presenting with school refusal, all of whom were diagnosed with at least one anxiety disorder. Being the first known study to examine ER and school refusal, hypotheses were guided by previous research on anxiety. It was hypothesized that the school refusal sample would report less healthy ER strategy use compared to an age-and sex-matched nonclinical sample (n = 21). As expected, the school refusal sample reported less use of cognitive reappraisal and greater use of expressive suppression to regulate their emotions than did the nonclinical sample. Although preliminary, the findings provide important information regarding the emotional functioning of children and adolescents presenting with school refusal. Future directions for research and implications for improved prevention and intervention programs are discussed

    Mesoporous TiO2 nanostructures: A route to minimize Pt loading on titania photocatalysts for hydrogen production

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    Mesostructured TiO2 nanocrystals have been prepared using Pluronic F127 as the structure-directing agent. Platinum nanoparticles at different contents (0.1-1.0 wt%) have been photochemically deposited onto the mesoporous TiO2. TEM investigation of 0.2 wt% Pt/TiO2 calcined at 450 °C reveals that the TiO2 particles are quite uniform in size and shape with the particle sizes of TiO2 and Pt being 10 and 3 nm, respectively. The photocatalytic activities of the Pt loaded TiO2 have been assessed and compared with those of nonporous commercial Pt/TiO2-P25 by determining the rates and the photonic efficiencies of molecular hydrogen production from aqueous methanol solutions. The results show that the amount of hydrogen evolved on Pt/TiO2-450 at low Pt loading (0.2 wt%) is three times higher than that evolved on Pt/TiO2-P25 and twelve times higher than that evolved on Pt/TiO 2-350. Despite the BET surface area of the TiO2-450 photocatalyst being 3.5 times higher than that of TiO2-P25, a 60% smaller amount of the Pt co-catalyst is required to obtain the optimum photocatalytic hydrogen production activity. The reduced Pt loading on the mesoporous TiO2 will be important both from a commercial and an ecological point of view. © 2011 the Owner Societies

    The role of social identity and self-efficacy in predicting service providers’ use of Stepping Stones Triple P following training

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    Background: Identifying factors that may contribute to the use of programs following the completion of training by practitioners is of practical and theoretical importance. Aim: This study examined the role of social identity and self-efficacy in contributing to the delivery of an evidence-based parenting program. Methods and Procedures: A sample of 63 multi-disciplinary professionals trained in the Stepping Stones Triple P-Positive Parenting Program, for parents of children with developmental disability, as part of a statewide roll-out were interviewed two years after training. Data on the number of hours of delivery during the 2-year period was analysed along with quantitative data obtained during interviews that assessed professionals’ self-efficacy and social identity as a Stepping Stones professional. Outcomes and Results: Social identity was associated with the use of SSTP in an independent analysis, but the association was no longer significant when other factors were included in a regression model. Self-efficacy predicted the use of SSTP and was found to be a mediator in the relationship between social identity and use of SSTP. Conclusions and Implications: This first investigation into the role of social identity in the implementation of evidence-based parenting programs showed that social identity could play an important role. The role of self-efficacy in predicting program use was further supported in this study and the mediator function of self-efficacy is explored. The practical and theoretical implications of the role of self-efficacy and social identity in the training of professionals are discussed.</p

    Psychopathology of adolescents with an intellectual disability who present to general hospital services

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    Objective: Adolescents with intellectual disability have increased rates of psychopathology compared with their typically developing peers and present to hospital more frequently for ambulant conditions. The aim of this study is to describe the psychopathology and related characteristics of a sample of adolescents with intellectual disability who presented to general hospital services

    Psychopathology in Young People With Intellectual Disability

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    Context Comorbid severe mental health problems complicating intellectual disability are a common and costly public health problem. Although these problems are known to begin in early childhood, little is known of how they evolve over time or whether they continue into adulthood. Objective To study the course of psychopathology in a representative population of children and adolescents with intellectual disability. Design, Setting, and Participants The participants of the Australian Child to Adult Development Study, an epidemiological cohort of 578 children and adolescents recruited in 1991 from health, education, and family agencies that provided services to children with intellectual disability aged 5 to 19.5 years in 6 rural and urban census regions in Australia, were followed up for 14 years with 4 time waves of data collection. Data were obtained from 507 participants, with 84% of wave 1 (1991-1992) participants being followed up at wave 4 (2002-2003). Main Outcome Measures The Developmental Behaviour Checklist (DBC), a validated measure of psychopathology in young people with intellectual disability, completed by parents or other caregivers. Changes over time in the Total Behaviour Problem Score and 5 subscale scores of the DBC scores were modeled using growth curve analysis. Results High initial levels of behavioral and emotional disturbance decreased only slowly over time, remaining high into young adulthood, declining by 1.05 per year on the DBC Total Behaviour Problem Score. Overall severity of psychopathology was similar across mild to severe ranges of intellectual disability (with mean Total Behavior Problem Scores of approximately 44). Psychopathology decreased more in boys than girls over time (boys starting with scores 2.61 points higher at baseline and ending with scores 2.57 points lower at wave 4), and more so in participants with mild intellectual disability compared with those with severe or profound intellectual disability who diverged from having scores 0.53 points lower at study commencement increasing to a difference of 6.98 points below severely affected children by wave 4. This trend was observed in each of the subscales, except the social-relating disturbance subscale, which increased over time. Prevalence of participants meeting criteria for major psychopathology or definite psychiatric disorder decreased from 41% at wave 1 to 31% at wave 4. Few of the participants (10%) with psychopathology received mental health interventions during the study period. Conclusion These results provide evidence that the problem of psychopathology comorbid with intellectual disability is both substantial and persistent and suggest the need for effective mental health interventions

    The Melbourne Study of Psychoanalytic Psychotherapy III: Patients' and psychotherapists’ perspectives on progress and challenges

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    Qualitative exploration of the experience of psychoana-lytic psychotherapy complemented the quantitative eval-uation of mental health and life functioning improvements in the Melbourne Study of Psychoanalytic Psychotherapy. Twice-weekly treatment was offered to adults for 2years by the private sector Glen Nevis Clinic for Psychoanalytic Psychotherapy, established by the Victorian Association of Psychoanalytic Psychotherapists as a subsidized, low-cost community service over 8years. This paper is the second of two presenting the qualitative arm of the study, involv-ing in-depth narrative interviews with patients and psycho-therapists. Analysis of 143 transcripts further contributes to evidence of the Reach, Effectiveness, Adoption, Imple-men tation and Maintenance of psychoanalytic psycho-therapy in a community setting. The first qualitative paper reports themes concerning patient expectations of psycho-therapy and perspectives of both patients and psychother-apists on the experience and benefits of the treatment. This paper reports what was perceived by participants as facili-tative or challenging for therapeutic progress, illuminating how experiences of the nature of psychoanalytic psycho-therapy may have affected the Implementation, Effectivenessand Maintenance of the program. The most notable facilita-tive factors emerging were the exploratory, insight-oriented nature of the work, elements of the patient-psychotherapist relationship, and the frame of the treatment. Challenges were also often seen as inherent to Effectiveness; however, proposing the frame of 2-year treatment, as both an expecta-tion and a limit, probably inhibited program Reach, Adoptionand overall Implementation. The limitations and strengths of the qualitative arm of the research, together with implica-tions for further investigation, are discussed
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