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The Early Development of Visual Attentional Mechanisms in Autism Spectrum Disorder.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	The Early Development of Visual Attentional Mechanisms in Autism Spectrum Disorder./
Author:	Smith, Hayley.
Description:	1 online resource (165 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
Contained By:	Dissertation Abstracts International79-10B(E).
Subject:	Cognitive psychology. -
Online resource:	click for full text (PQDT)
ISBN:	9780438003385

The Early Development of Visual Attentional Mechanisms in Autism Spectrum Disorder.
Smith, Hayley.

The Early Development of Visual Attentional Mechanisms in Autism Spectrum Disorder. - 1 online resource (165 pages)

Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.

Thesis (Ph.D.)--University of Massachusetts Boston, 2018.

Includes bibliographical references

Attention plays a fundamental role in shaping cognitive development. What we attend to and what we ignore alters our visual experience of the world. Atypical attention has long been implicated in Autism Spectrum Disorder (ASD) yet our understanding of the early development of this ability has been limited by methodological factors. The aim of this thesis was to address the "toddler gap" in the literature by developing novel measures of attention that are ideal for use with toddlers, do not require verbal instructions, and can be easily scaled up or down for older or younger children. A series of three eye-tracking experiments are presented which explore visual attentional mechanisms in toddlers with ASD and age-matched typically developing controls.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780438003385Subjects--Topical Terms:

556029
Cognitive psychology.
Index Terms--Genre/Form:

554714
Electronic books.

The Early Development of Visual Attentional Mechanisms in Autism Spectrum Disorder.
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245 1 4 $a The Early Development of Visual Attentional Mechanisms in Autism Spectrum Disorder.
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300 $a 1 online resource (165 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 79-10(E), Section: B.
500 $a Adviser: Zsuzsa Kaldy.
502 $a Thesis (Ph.D.)--University of Massachusetts Boston, 2018.
504 $a Includes bibliographical references
520 $a Attention plays a fundamental role in shaping cognitive development. What we attend to and what we ignore alters our visual experience of the world. Atypical attention has long been implicated in Autism Spectrum Disorder (ASD) yet our understanding of the early development of this ability has been limited by methodological factors. The aim of this thesis was to address the "toddler gap" in the literature by developing novel measures of attention that are ideal for use with toddlers, do not require verbal instructions, and can be easily scaled up or down for older or younger children. A series of three eye-tracking experiments are presented which explore visual attentional mechanisms in toddlers with ASD and age-matched typically developing controls.
520 $a Experiment 1 and Experiment 2 examined selective attention to novel task-irrelevant stimuli during visual search. Toddlers with ASD demonstrated typical attentional capture when the task-irrelevant stimulus was defined by a novel onset, yet demonstrated atypically reduced attentional capture when the task-irrelevant stimulus was defined by a novel color. Experiment 3 examined attentional set-shifting in the context of visual search. No evidence of impaired set-shifting was found in toddlers with ASD. Together, findings provide important insights into the development of attentional mechanisms during the toddler period in ASD and in typical development.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Cognitive psychology. $3 556029
650 4 $a Psychology. $3 555998
650 4 $a Clinical psychology. $3 649607
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710 2 $a University of Massachusetts Boston. $b Developmental and Brain Sciences (PhD). $3 1190431
773 0 $t Dissertation Abstracts International $g 79-10B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10746398 $z click for full text (PQDT)