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Reduction in Retinal Nerve Fiber Layer Thickness in Young Adults with Autism Spectrum Disorders
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Emberti Gialloreti, Leonardo; Pardini, Matteo; Benassi, Francesca; Marciano, Sara; Amore, Mario; Mutolo, Maria Giulia; Porfirio, Maria Cristina; Curatolo, Paolo – Journal of Autism and Developmental Disorders, 2014
Recent years have seen an increase in the use of retinal nerve fiber layer (RNFL) evaluation as an easy-to-use, reproducible, proxy-measure of brain structural abnormalities. Here, we evaluated RNFL thickness in a group of subjects with high functioning autism (HFA) or with Asperger Syndrome (AS) to its potential as a tool to study autism…
Descriptors: Autism, Pervasive Developmental Disorders, Physiology, Control Groups
Estimation of the Intelligence Quotient Using Wechsler Intelligence Scales in Children and Adolescents with Asperger Syndrome
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Merchan-Naranjo, Jessica; Mayoral, Maria; Rapado-Castro, Marta; Llorente, Cloe; Boada, Leticia; Arango, Celso; Parellada, Mara – Journal of Autism and Developmental Disorders, 2012
Asperger syndrome (AS) patients show heterogeneous intelligence profiles and the validity of short forms for estimating intelligence has rarely been studied in this population. We analyzed the validity of Wechsler Intelligence Scale (WIS) short forms for estimating full-scale intelligence quotient (FSIQ) and assessing intelligence profiles in 29…
Descriptors: Multiple Intelligences, Asperger Syndrome, Validity, Intelligence Quotient
The Role of Adaptive Behavior in Autism Spectrum Disorders: Implications for Functional Outcome
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Kanne, Stephen M.; Gerber, Andrew J.; Quirmbach, Linda M.; Sparrow, Sara S.; Cicchetti, Domenic V.; Saulnier, Celine A. – Journal of Autism and Developmental Disorders, 2011
The relationship between adaptive functioning and autism symptomatology was examined in 1,089 verbal youths with ASD examining results on Vineland-II, IQ, and measures of ASD severity. Strong positive relationships were found between Vineland subscales and IQ. Vineland Composite was negatively associated with age. IQ accounted a significant amount…
Descriptors: Autism, Intelligence Quotient, Adjustment (to Environment), Severity (of Disability)
Brief Report: The Level and Nature of Autistic Intelligence Revisited
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Bolte, Sven; Dziobek, Isabel; Poustka, Fritz – Journal of Autism and Developmental Disorders, 2009
Owing to higher performance on the Raven's Progressive Matrices (RPM) than on the Wechsler Intelligence Scales (WIS), it has recently been argued that intelligence is underestimated in autism. This study examined RPM and WIS IQs in 48 individuals with autism, a mixed clinical (n = 28) and a neurotypical (n = 25) control group. Average RPM IQ was…
Descriptors: Control Groups, Intelligence, Autism, Intelligence Quotient
Follow-Up of Children Diagnosed with Pervasive Developmental Disorders: Stability and Change during the Preschool Years
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Jonsdottir, Sigridur Loa; Saemundsen, Evald; Asmundsdottir, Gudlaug; Hjartardottir, Sigrun; Asgeirsdottir, Bryndis B.; Smaradottir, Hrafnhildur H.; Sigurdardottir, Solveig; Smari, Jakob – Journal of Autism and Developmental Disorders, 2007
Forty-one children with pervasive developmental disorders (PDDs) receiving eclectic services were assessed twice during their preschool years. Measures were compared over time for the whole group and for diagnostic subgroups: Childhood autism (CA group) and Other PDDs group. The mean intelligence quotient/developmental quotient (IQ/DQ) of the…
Descriptors: Adjustment (to Environment), Rating Scales, Intelligence Quotient, Children
Brief Report: Autism in Individuals with Down Syndrome
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Starr, Elizabeth M.; Berument, Sibel Kazak; Tomlins, Megan; Papanikolaou, Katerina; Rutter, Michael – Journal of Autism and Developmental Disorders, 2005
As an off-shoot of a study examining the reliability and validity of an adapted version of the Pre-Linguistic Autism Diagnostic Observation Schedule (A-PL-ADOS), 13 individuals with Down syndrome with IQs ranging between 24 and 48 were administered the Autism Diagnostic Interview-Revised (ADI-R) and the A-PL-ADOS, which are well-validated…
Descriptors: Autism, Down Syndrome, Intelligence Quotient, Reliability