Pragmatic language impairments have been found in children with high-functioning Autism (HFA). Limited studies have investigated the contributing factors. This study compared 23 children with HFA with 28 typically-developing children on pragmatic language measures, with their age, cognitive ability and language ability matched or controlled. Deficit of children with HFA was found in making inferences in comprehension but not in narrative ability, and abilities to make inferences in narrative and about psychological state. Theory of mind was an impairment for children with HFA and correlated with inferences about psychological state. In the measure of executive functioning at visual-perceptual level, better performance was found in children with HFA. This cognitive factor did not correlate with any pragmatic language measure. / published_or_final_version / Educational Psychology / Master / Master of Social Sciences

Background: Autism Spectrum Disorder (ASD) is a neuro-developmental disorder characterized by a triad of impairments in social interaction, communication, and restricted and repetitive behaviors. For children with autism especially those with high functioning (HFA), it is common to discover from clinical observation and from care-givers’ report that there are uneven performance in their cognitive profile and also executive difficulties. In recent years, there were enormous amount of researches attempting to delineate the cognitive deficits and the executive impairments in autism. Executive Functions (EF) was a widely studied construct in autism. The vast pool of researches establishes various focuses of investigation, including: (1) the biological level; (2) the cognitive level; (3) the task performance level; and (4) the everyday functioning level. Each of them has its own significance, and contributes distinctly in delineating the executive impairments in ASD. Taking into account the complexity of the EF construct and the far-reaching impacts it imposing on our everyday functioning, a comprehensive approach encompassing different levels of investigation in one research design is suggested to investigate the performance and specific areas of impairment of children with HFA in respective levels; and to explore the possible relationships between the levels of investigations. Methods: Forty aged 12-15 children participated in the research, twenty with HFA and twenty typically developing controls (TD), matched by gender, age and IQ. In the first part of the study, the participants were administered four traditional EF tasks including: inhibition, working memory, flexibility and planning to examine EF in the cognitive level. In the second part, they completed a novel multitasking test, the Battersea Multitask Paradigm (BMP) to examine executive difficulties in the task performance level. Parent ratings of the Behavior Rating Inventory of Executive Function (BRIEF) were collected for further investigation of their executive difficulties in the daily functioning level. Results: The 3-levels of investigation demonstrated converged results in examining the executive ability of ASD. From the integrated analyses, more evidence was gained to speculate that the planning inefficiency of children with HFA was due to their inability to cognitively construct the plan rather than their ability to execute or implement the plan. In real-life situations, they have particular difficulties in time management, to prioritize multiple and interleaved tasks, and to coordinate intended actions for future goal attainment. Moreover, their cognitive inflexibility had a pattern of “get stuck” or perseverates on the same task till completion before moving onto the next task. Their inflexibility to switch seemed to be explained by the preference to follow a more structured kind of sequence or action, i.e. to persist and finish one task before moving to another one. They were actually excellent “rule follower”, might not be as rigid of not willing to change. Significant positive relationships were only observed between the EF measures and Multitask variables. / published_or_final_version / Educational Psychology / Doctoral / Doctor of Psychology

The purpose of the present study was to examine whether an autism diagnosiscould be predicted by social interaction as measured by the Ghuman-Folstein Screen forSocial Interaction in conjunction with selected demographic variables (i.e., sex, age,ethnicity, mother's educational level, and socio-economic status). Univariate andbivariate analyses were conducted to explore each predictor variable and to explorepossible relationships between predictor variables and autism. Binary logistic regressionwas utilized to examine various models' ability to predict autism. The final model wasable to correctly identify 74% of the cases. The GF-SSI was the greatest predictor ofautism. The selected demographic variables were not significant predictors of autism.These results were discussed in relation to the literature on sex, age, ethnicity, maternaleducation and socio-economic status. Future directions for research were also discussed.

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The current set of studies adds to the growing body of literature of self-perceptions in atypical populations. Previous research has demonstrated that, despite significant functional problems in multiple domains, children with ADHD unexpectedly provide overly-positive reports of their own competence in comparison to actual performance on objective measures. Study 1 empirically examined the self-perceptions of adolescents with Attention-Deficit/Hyperactivity Disorder (ADHD) using performance on individual, specific, concrete tasks as the basis for participants’ ratings of competence. Participants completed a verbal and mathematic task and were asked how well they thought they did prior to completing the tasks (pre-prediction rating). After they completed each task they were asked how well they thought they did (current post-performance) and how well they thought they would do in the future (future post-performance). For the purpose of the study, self-perceptions can be described as the difference between perceived performance and actual performance. These difference scores were used in analyses. Results suggested that adolescents with ADHD tend to have more positively-biased self-perceptions than typically developing (TD) adolescents. The current study also examined the role that IQ and executive functioning have on self-perceptions; however, no significant relationships were found. Using the same methodology, Study 2 examined the self-perceptions of adolescents with Autism Spectrum Disorders (ASD). By examining a population with similar cognitive deficits as individuals with ADHD, the current study aimed to determine whether these positively-biased self-perceptions are specific to ADHD or if it is a phenomenon related to more general difficulties or dysfunction. Results suggested that adolescents with ASD also tended to have more positively-biased self-perceptions than TD adolescents. In adolescents with ASD, lower IQ and greater executive functioning deficits tended to be related to more positively-biased self-perceptions. Limitations of this research are discussed. Future investigation is needed to systematically examine other possible mechanisms that may be contributing to these biased self-perceptions. / Thesis (Master, Psychology) -- Queen's University, 2013-09-30 15:24:30.91

Objectives: The purpose of this thesis was to identify risk factors for the development of mental health concerns in pre-teens and adolescents with Autism Spectrum Disorder (ASD), and in particular the role of early childhood ASD symptomatology in their development. Additionally, this thesis generated prevalence estimates for mental health concerns in Canadian adolescents with ASD. Methods: The parents of 390 individuals with ASD were invited to participate in a survey, either online or by mail. Sixty-seven parents completed and returned surveys. Kendall tau b correlation coefficients were calculated for the association between age at assessment with ADI-R and score in each domain. Prevalence estimates with 95% confidence intervals were generated, and the Kappa statistic was used to determine the strength of agreement between parent-reported diagnoses and clinical CBCL scores. Finally, bivariate analysis was used to determine if childhood ASD symptomatology was associated with mental health in adolescence, followed by logistic regression modeling to evaluate the effect of other possible risk factors. Results: Scores on two domains of the ADI-R were significantly associated with age at assessment, therefore, it was necessary to control for age at assessment with the ADI-R on these domains in the analysis conducted in Chapter Four. Forty-five percent of the study sample met case criteria for a comorbid psychiatric disorder. Anxiety, mood and attention-deficit disorders were the most common disorders in this sample. Early childhood ASD symptoms were not associated with the development of mental health concerns in adolescence. Family history and female gender were associated with the development of mental health concerns in adolescence. Conclusions: Nearly half of the individuals in our sample have been diagnosed with a psychiatric disorder, or are experiencing clinically significant symptoms that may be indicative of such a disorder. Our findings of discrepancies between parent-reported diagnoses and CBCL scores, indicates that many individuals in our sample are experiencing clinically significant mental health concerns, but do not have an official diagnosis. Finally, as has been reported previously, family history of mental illness and female gender were found to be associated with the development of a mental health concern in adolescence. / Thesis (Master, Community Health & Epidemiology) -- Queen's University, 2013-10-14 11:06:50.53

The purpose of this paper is to examine a strength-based reading instruction method for individuals severely affected by autism who do not respond well to typical literacy instruction methods, called the Oelwein Method (OM). Due to the unique learning profile of strengths and weaknesses in individuals with severe autism, they often do not respond well to typical literacy instruction models. This paper examines the unique learning profile of individuals with autism and why the OM is an effective literacy instruction model for this population of learners. Phonics-based and sight word-based approaches are compared, with a focus on the effectiveness of these approaches for individuals with autism. The materials and instructional process of the OM are explained, including empirical evidence that supports the different instructional components used in the OM. The Ontario Ministry of Education’s policies are reviewed, along with how the OM satisfies these policies. Methods to improve the OM are explored as well as directions for future research that would need to occur before widespread implementation could take place.

Reasoning from all knowledge and belief is an adaptive approach to thinking about the world. It has been robustly shown that conditional ‘if then’ reasoning with everyday content is influenced by the background knowledge an individual has available. If we are presented with the statement ‘if it rains, then John will get wet’ then we are told that it is raining and asked if John will get wet, we may consider a number of possibilities before answering the question; perhaps John has an umbrella or is sheltered from the rain. Hence, when engaged in conditional reasoning of this sort people typically draw on background knowledge to arrive at an informed response. People with autism tend not to process information in context. There is a wealth of evidence indicating that these individuals have a piecemeal rather than an integrative processing style. It was therefore hypothesised that adolescents with autism spectrum disorder (ASD) would be less influenced by background knowledge when engaged in conditional reasoning with everyday content. Adolescents with ASD showed a weak or absent effect of available background knowledge on reasoning outcomes compared to a typically developing control group. This finding was demonstrated in two separate conditional reasoning tasks. These results were not explained by a failure to generate background knowledge or by differences in the beliefs held by the two groups regarding problem content. Within the typical population a lack of contextualised reasoning was also found among participants with high scores on one particular autistic trait, attention to detail. The ability to integrate all relevant information during conditional reasoning was also found to be dependent on available working memory resources. These results extend the known domains which demonstrate a lack of contextualised processing in autism. They also show that for individuals with autism reasoning without regard for background knowledge stems from a failure to integrate information. The findings suggest that this failure is related to the cognitive demands of the task and the processing style of the individual.