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Overactivity, impulsivity and repetitive behaviour in males with fragile X syndrome: contrasting developmental trajectories in those with and without elevated autism symptoms

Crawford, H., Moss, J., Stinton, C., Singla, G. and Oliver, C. (2018) Overactivity, impulsivity and repetitive behaviour in males with fragile X syndrome: contrasting developmental trajectories in those with and without elevated autism symptoms Journal of Intellectual Disability Research, 62 (8). pp. 672-683.

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Abstract

Background: Hyperactivity and repetitive behaviour are characteristic features of fragile X syndrome (FXS). However, little is known about the influence of autism symptomatology on how these characteristics develop over time. We investigate the profiles and developmental trajectories of overactivity, impulsivity and repetitive behaviour, in males with FXS over three time points spanning 8 years. Method: Participants formed two subgroups, those who displayed elevated symptoms of autism at Time 1 (n = 37; Mage = 16.32; age range = 6.61-43.51) and those who did not (n = 32; Mage = 8.43; age range = 8.94-47.49). Results: Participants without elevated symptoms of autism showed a reduction in impulsivity and repetitive questioning over time, whereas those with elevated symptoms of autism did not. Differences between the two subgroups in several topographies of repetitive behaviour emerged at Time 3 only. Conclusions: These results further understanding of the relationship between autistic phenomenology and behavioural characteristics in FXS.

Item Type: Article
Divisions : Faculty of Health and Medical Sciences > School of Psychology
Authors :
NameEmailORCID
Crawford, H.
Moss, J.j.moss@surrey.ac.uk
Stinton, C.
Singla, G.
Oliver, C.
Date : August 2018
Funders : Cerebra
DOI : 10.1111/jir.12488
Copyright Disclaimer : © 2018 MENCAP and International Association of the Scientific Study of Intellectual and Developmental Disabilities and John Wiley & Sons Ltd
Uncontrolled Keywords : Attention deficit hyperactivity disorder; Autism; Developmental trajectory; Fragile X syndrome; Repetitive behaviour
Depositing User : Diane Maxfield
Date Deposited : 03 Mar 2020 16:46
Last Modified : 03 Mar 2020 16:46
URI: http://epubs.surrey.ac.uk/id/eprint/853573

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