TY - JOUR
T1 - Nonverbal, rather than verbal, functioning may predict cognitive flexibility among persons with autism spectrum disorder
T2 - A preliminary study
AU - Campbell, Colin Andrew
AU - Russo, Natalie
AU - Landry, Oriane
AU - Jankowska, Anna Maria
AU - Stubbert, Emily
AU - Jacques, Sophie
AU - Burack, Jacob A.
N1 - Funding Information:
The authors would like to acknowledge the funding support they received from the Social Sciences and Humanities Research Council of Canada, Fonds de Recherche du Québec-Société et Culture, as well as the contributions of Shannahn McInnis. Sincerest thanks to the participants, their parents, and the staff of Summit School and Giant Steps School, the facilities at which we conducted the study.
Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Background Cognitive flexibility may not be as impaired in persons with autism spectrum disorder (ASD) as expected by the clinical criterion of repetitive and perseverative behaviors (APA, 2013) and by their verbal abilities. In typically developing (TD) children and other groups, the development of cognitive flexibility is tightly linked to verbal development. However, nonverbal abilities may better predict cognitive flexibility in children with ASD because of their unique pattern of cognitive strengths and weaknesses. Method We examined the relative influences of chronological age (CA), performance mental age (PMA), and verbal mental age (VMA) on cognitive flexibility as measured by performance on the Flexible Item Selection Task (FIST) among a group of 27 individuals with ASD with a wide range of IQs. The Leiter-R and PPVT-III estimated PMA and VMA, respectively. Results Partial correlations indicated that PMA, but not VMA, related to switching performance on the FIST. Conclusion Findings highlight the potential unique role of nonverbal abilities as a contributing factor to the development of cognitive flexibility among individuals with ASD. Nonverbal abilities may better support the development of cognitive flexibility in this particular population perhaps because their limited verbal abilities cannot contribute effectively to other cognitive processes such as cognitive flexibility.
AB - Background Cognitive flexibility may not be as impaired in persons with autism spectrum disorder (ASD) as expected by the clinical criterion of repetitive and perseverative behaviors (APA, 2013) and by their verbal abilities. In typically developing (TD) children and other groups, the development of cognitive flexibility is tightly linked to verbal development. However, nonverbal abilities may better predict cognitive flexibility in children with ASD because of their unique pattern of cognitive strengths and weaknesses. Method We examined the relative influences of chronological age (CA), performance mental age (PMA), and verbal mental age (VMA) on cognitive flexibility as measured by performance on the Flexible Item Selection Task (FIST) among a group of 27 individuals with ASD with a wide range of IQs. The Leiter-R and PPVT-III estimated PMA and VMA, respectively. Results Partial correlations indicated that PMA, but not VMA, related to switching performance on the FIST. Conclusion Findings highlight the potential unique role of nonverbal abilities as a contributing factor to the development of cognitive flexibility among individuals with ASD. Nonverbal abilities may better support the development of cognitive flexibility in this particular population perhaps because their limited verbal abilities cannot contribute effectively to other cognitive processes such as cognitive flexibility.
KW - Autism spectrum disorder
KW - Cognitive flexibility
KW - Executive function
KW - Mental age
KW - Nonverbal abilities
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U2 - 10.1016/j.rasd.2017.03.005
DO - 10.1016/j.rasd.2017.03.005
M3 - Article
AN - SCOPUS:85016401857
SN - 1750-9467
VL - 38
SP - 19
EP - 25
JO - Research in Autism Spectrum Disorders
JF - Research in Autism Spectrum Disorders
ER -