1. Boudreau BA, Vladescu JC, Kodak TM, Argott PJ, Kisamore AN. {{A comparison of differential reinforcement procedures with children with autism}}. {J Appl Behav Anal};2015 (Jul 14)
The current evaluation compared the effects of 2 differential reinforcement arrangements and a nondifferential reinforcement arrangement on the acquisition of tacts for 3 children with autism. Participants learned in all reinforcement-based conditions, and we discuss areas for future research in light of these findings and potential limitations.
Lien vers le texte intégral (Open Access ou abonnement)
2. Kronenberg LM, Goossens PJ, van Busschbach J, van Achterberg T, van den Brink W. {{Coping styles in substance use disorder (SUD) patients with and without co-occurring attention deficit/hyperactivity disorder (ADHD) or autism spectrum disorder (ASD)}}. {BMC Psychiatry};2015;15:159.
BACKGROUND: Patients with a substance use disorder (SUD) and co-occurring attention deficit hyperactivity disorder (ADHD) or autism spectrum disorder (ASD) often start using substances in an attempt to cope with the stress related to their ADHD or ASD. To improve treatment for these patient groups, it is important to identify and compare the various coping styles between SUD patients with and without ADHD or ASD and with subjects from a general population sample. METHODS: Cross-sectional study using the Utrecht Coping List (UCL) in 50 SUD patients, 41 SUD + ADHD patients, 31 SUD + ASD patients and 1,200 railway employees. RESULTS: Compared with the reference group, all three SUD groups showed a significant higher mean on the Palliative reaction, Avoidance, and Passive reaction subscales of the UCL. The scores for all UCL subscales of the SUD and the SUD + ADHD groups were very similar. However, the SUD + ASD group scored higher on Passive reaction and lower on Reassuring thoughts than the SUD and the SUD + ADHD groups and lower on Expression of emotions subscale in comparison with the SUD + ADHD group. CONCLUSIONS: Regardless of the presence of a co-occurring disorder, SUD patients reported more palliative, avoidant and passive coping when confronted than people in the general population. In addition, SUD patients with co-occurring ASD were different from other SUD patients in their coping and professionals should take this into account when working on more adaptive coping strategies with these patients.
Lien vers le texte intégral (Open Access ou abonnement)
3. Mackie MA, Fan J. {{Reduced Efficiency and Capacity of Cognitive Control in Autism Spectrum Disorder}}. {Autism Res};2015 (Jul 14)
Cognitive control constrains mental operations to prioritize information that reaches conscious awareness and is essential to flexible, adaptive behavior under conditions of uncertainty. Cognitive control can be compromised by neurodevelopmental disorders such as autism spectrum disorder (ASD), which is characterized by the presence of social and communicative deficits, and restricted interests/repetitive behaviors. Although prior investigations have attempted to elucidate the nature of cognitive control in ASD, whether there is an underlying information processing deficit associated with cognitive control remains unclear. This study challenged cognitive control in 15 high-functioning adults with ASD and 15 typically developing (TD) controls using three novel tasks designed to systematically manipulate uncertainty. We aimed to investigate the efficiency of cognitive control in sequential information processing, cognitive control of nonsequential information processing across a range of cognitive loads and cognitive control capacity under time constraint. Results demonstrated that the ASD group performed less efficiently on sequential and nonsequential information processing, and had reduced cognitive control capacity under time constraint relative to the TD group. These findings suggest that inefficient cognitive control of information processing may be a fundamental deficit in ASD. Autism Res 2015. (c) 2015 International Society for Autism Research, Wiley Periodicals, Inc.
Lien vers le texte intégral (Open Access ou abonnement)
4. Schlosser RW, Koul RK. {{Speech Output Technologies in Interventions for Individuals with Autism Spectrum Disorders: A Scoping Review}}. {Augment Altern Commun};2015 (Jul 14):1-25.
The purpose of this scoping review was to (a) map the research evidence on the effectiveness of augmentative and alternative communication (AAC) interventions using speech output technologies (e.g., speech-generating devices, mobile technologies with AAC-specific applications, talking word processors) for individuals with autism spectrum disorders, (b) identify gaps in the existing literature, and (c) posit directions for future research. Outcomes related to speech, language, and communication were considered. A total of 48 studies (47 single case experimental designs and 1 randomized control trial) involving 187 individuals were included. Results were reviewed in terms of three study groupings: (a) studies that evaluated the effectiveness of treatment packages involving speech output, (b) studies comparing one treatment package with speech output to other AAC modalities, and (c) studies comparing the presence with the absence of speech output. The state of the evidence base is discussed and several directions for future research are posited.
Lien vers le texte intégral (Open Access ou abonnement)
5. Shave K, Lashewicz B. {{Support Needs of Fathers of Children with ASD: Individual, Family, Community and Ideological Influences}}. {J Appl Res Intellect Disabil};2015 (Jul 14)
INTRODUCTION: Fathers are increasingly involved in caring for children, and involvement by fathers of children with ASD is distinctly impacted by added demands of their child’s diagnosis. Yet supports for families of children with ASD are not tailored to needs of fathers. We use an ecological framework to examine how fathers’ needs are influenced by contexts ranging from the immediacy of their child’s behaviour to overarching expectations for good fathering. METHODS: We thematically analyse data from semi-structured interviews with 28 fathers of children with ASD who shared parenting stories of navigating their immediate and broader environments. FINDINGS: Fathers are responsive and reflective in their parenting and value recreationally based support activities that include their children. Fathers endorse father-to-father support and are interested in mentoring fathers newer to the experience of having a child with ASD. CONCLUSIONS: Fathers are resourceful parents who compel a critical re-examination towards advances in father-friendly practices.
Lien vers le texte intégral (Open Access ou abonnement)
6. Talbott MR, Nelson CA, Tager-Flusberg H. {{Maternal Vocal Feedback to 9-Month-Old Infant Siblings of Children with ASD}}. {Autism Res};2015 (Jul 14)
Infant siblings of children with autism spectrum disorder display differences in early language and social communication skills beginning as early as the first year of life. While environmental influences on early language development are well documented in other infant populations, they have received relatively little attention inside of the infant sibling context. In this study, we analyzed home video diaries collected prospectively as part of a longitudinal study of infant siblings. Infant vowel and consonant-vowel vocalizations and maternal language-promoting and non-promoting verbal responses were scored for 30 infant siblings and 30 low risk control infants at 9 months of age. Analyses evaluated whether infant siblings or their mothers exhibited differences from low risk dyads in vocalization frequency or distribution, and whether mothers’ responses were associated with other features of the high risk context. Analyses were conducted with respect to both initial risk group and preliminary outcome classification. Overall, we found no differences in infants’ consonant-vowel vocalizations, the frequency of overall maternal utterances, or the distribution of mothers’ response types. Both groups of infants produced more vowel than consonant-vowel vocalizations, and both groups of mothers responded to consonant-vowel vocalizations with more language-promoting than non-promoting responses. These results indicate that as a group, mothers of high risk infants provide equally high quality linguistic input to their infants in the first year of life and suggest that impoverished maternal linguistic input does not contribute to high risk infants’ initial language difficulties. Implications for intervention strategies are also discussed. Autism Res 2015. (c) 2015 International Society for Autism Research, Wiley Periodicals, Inc.
Lien vers le texte intégral (Open Access ou abonnement)
7. Varella AA, de Souza DG. {{Using class-specific compound consequences to teach dictated and printed letter relations to a child with autism}}. {J Appl Behav Anal};2015 (Jul 14)
The effects of class-specific compound consequences embedded in an identity-matching task to establish arbitrary emergent relations were evaluated. A 3-year-old child with autism was taught identity relations between lowercase letters (Set 1) and uppercase letters (Set 2). A compound stimulus that consisted of an auditory component (dictated letter name) and a visual component (an uppercase letter for Set 1 or lowercase letter for Set 2) followed correct responses. All targeted arbitrary relations emerged (uppercase-lowercase, lowercase-uppercase, dictated name/uppercase, and dictated name/lowercase), suggesting that this procedure may be useful for teaching.
Lien vers le texte intégral (Open Access ou abonnement)
8. Wise A, Tenezaca L, Fernandez RW, Schatoff E, Flores J, Ueda A, Zhong X, Wu CF, Simon AF, Venkatesh T. {{Drosophila mutants of the autism candidate gene neurobeachin (rugose) exhibit neuro-developmental disorders, aberrant synaptic properties, altered locomotion, and impaired adult social behavior and activity patterns}}. {J Neurogenet};2015 (Jul 14):1-9.
Autism spectrum disorder (ASD) is a neurodevelopmental disorder in humans characterized by complex behavioral deficits, including intellectual disability, impaired social interactions, and hyperactivity. ASD exhibits a strong genetic component with underlying multigene interactions. Candidate gene studies have shown that the neurobeachin (NBEA) gene is disrupted in human patients with idiopathic autism ( Castermans et al., 2003 ). The NBEA gene spans the common fragile site FRA 13A and encodes a signal scaffold protein ( Savelyeva et al., 2006 ). In mice, NBEA has been shown to be involved in the trafficking and function of a specific subset of synaptic vesicles. ( Medrihan et al., 2009 ; Savelyeva et al., 2006 ). Rugose (rg) is the Drosophila homolog of the mammalian and human NBEA. Our previous genetic and molecular analyses have shown that rg encodes an A kinase anchor protein (DAKAP 550), which interacts with components of the epidermal growth factor receptor or EGFR and Notch-mediated signaling pathways, facilitating cross talk between these and other pathways ( Shamloula et al., 2002 ). We now present functional data from studies on the larval neuromuscular junction that reveal abnormal synaptic architecture and physiology. In addition, adult rg loss-of-function mutants exhibit defective social interactions, impaired habituation, aberrant locomotion, and hyperactivity. These results demonstrate that Drosophila NBEA (rg) mutants exhibit phenotypic characteristics reminiscent of human ASD and thus could serve as a genetic model for studying ASDs.
Lien vers le texte intégral (Open Access ou abonnement)
9. Woynaroski T, Yoder P, Watson LR. {{Atypical Cross-Modal Profiles and Longitudinal Associations Between Vocabulary Scores in Initially Minimally Verbal Children With ASD}}. {Autism Res};2015 (Jul 14)
We tested the relative levels (i.e., age equivalencies) of concurrent cross-modality (receptive and expressive) vocabulary and the relative strength of the longitudinal, cross-modality associations between early and later vocabulary sizes in minimally verbal preschoolers with ASD. Eighty-seven children participated. Parent-reported vocabulary was assessed at four periods separated by 4 months each. Expressive age equivalent scores were higher than receptive age equivalent scores at all four periods. Cross-lagged panel analysis was used to rule out common, but trivial, explanations for differences between the longitudinal associations of interest. Key associations were tested across intervals that varied from 8 to 12 months. In two of the three tested panels, the associations between early expressive vocabulary size and later receptive vocabulary size were stronger than the associations between early receptive vocabulary size and later expressive vocabulary size, providing evidence that is consistent with the hypothesis that expressive vocabulary size drives receptive vocabulary size in minimally verbal preschoolers with ASD. Autism Res 2015. (c) 2015 International Society for Autism Research, Wiley Periodicals, Inc.
