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Utilitarian Attention by Children with Autism Spectrum Disorder on a Filtering Task

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Abstract

The findings are evidence that persons with ASD benefit more than typically developing (TD) persons from spatial framing cues in focusing their attention on a visual target. Participants were administered a forced-choice task to assess visual filtering. A target stimulus was presented on a screen and flanker stimuli were presented simultaneously with or after the target, with varying stimuli onset asynchronies (SOAs). Regardless of SOA, TD children showed the expected distracting effects with slower reaction times (RTs) when flankers were at closer distances from the target. However, children with ASD displayed shorter RTs in the conditions in which the stimuli were presented simultaneously or with a short SOA. These findings are interpreted as reflecting utilitarian attention among children with ASD.

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Notes

  1. An a priori power analysis based on Cohen’s moderate effect size (.25) for the interaction effects suggests that a total N of 24 would be needed for a power of .80. In addition, a post hoc power analysis for detection of the interaction effect, using our estimates of effect size from the data, revealed a power estimate of .86 (minimum is .80). Given our interest in the interaction effects with group, these estimates suggest that the number of participants allows for the detection of an appropriate effect size.

  2. Differences between distractor types were not analyzed as part of the primary analyses because we had no specific hypotheses related to distractor type, effects of type were controlled with the experiment design, and sample size did not warrant the inclusion of another independent variable. However, an exploratory analysis of distractor type revealed that all patterns described in the primary analyses held, and that the magnitude of these effects was in general greater when the distractors were dissimilar than when they were similar. In addition, this difference was more pronounced for the TD group than the ASD group. These effects need to be explored further in future studies.

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Acknowledgments

The authors gratefully acknowledge the children and parents who participated in our project, the teachers and staff from Summit and Giant Steps schools in Montreal, Heidi Flores, Stephanie Rishikof, Vanessa Babineau, and members of the McGill Youth Study Team who helped with data collection, and Margarita Miseros, Emily Stubbert, and Samantha O’Brien for their help in the preparation of the manuscript. This work was funded by a grant from the Social Sciences and Humanities Research Council of Canada awarded to Jacob A. Burack.

Funding

This study was funded by the Social Sciences and Humanities Research Council of Canada (File Number 410-2009-1144).

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Authors and Affiliations

Authors

Contributions

All authors contributed to the study concept and design. DAB and TD developed the stimuli and task design. JS and TD recruited participants and collected study data. Study data was analyzed by DAB and JS. The study manuscript was prepared by DAB, JS, and JAB. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Jacob A. Burack.

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Conflict of interest

D.A. Brodeur declares that she has no conflict of interest. J. Stewart declares that she has no conflict of interest. T. Dawkins declares that she has no conflict of interest. J. A. Burack declares that he has no conflict of interest.

Ethical approval

All procedures performed in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from parents or guardians of all individual participants included in the study.

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Brodeur, D.A., Stewart, J., Dawkins, T. et al. Utilitarian Attention by Children with Autism Spectrum Disorder on a Filtering Task. J Autism Dev Disord 48, 4019–4027 (2018). https://doi.org/10.1007/s10803-018-3619-5

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  • DOI: https://doi.org/10.1007/s10803-018-3619-5

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