Sensory Difficulties in Children With an FMR1 Premutation

Abnormal sensory processing is one of the core characteristics of the fragile X phenotype. Studies of young children with fragile X syndrome (FXS) and the FMR1 premutation have shown sensory challenges as early as infancy and into early childhood. This study sought to examine differences in sensory...

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Main Authors: Melissa Raspa, Amanda Wylie, Anne C. Wheeler, Jacek Kolacz, Anne Edwards, Keri Heilman, Stephen W. Porges
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-08-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fgene.2018.00351/full
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author Melissa Raspa
Amanda Wylie
Anne C. Wheeler
Jacek Kolacz
Anne Edwards
Keri Heilman
Stephen W. Porges
Stephen W. Porges
author_facet Melissa Raspa
Amanda Wylie
Anne C. Wheeler
Jacek Kolacz
Anne Edwards
Keri Heilman
Stephen W. Porges
Stephen W. Porges
author_sort Melissa Raspa
collection DOAJ
description Abnormal sensory processing is one of the core characteristics of the fragile X phenotype. Studies of young children with fragile X syndrome (FXS) and the FMR1 premutation have shown sensory challenges as early as infancy and into early childhood. This study sought to examine differences in sensory difficulties in children with an FMR1 premutation compared with children with FXS and typically developing children. We conducted an online survey of 176 parents of affected children (FXS or FMR1 premutation). Most respondents were mothers who are Caucasian (86%), have a 4-year college or graduate degree (68%), and are married (92%). Children ranged in age from 5 to 18, with a mean age of 13.0 years (3.3 SD). Participants completed the BBC Sensory Scales, a 50-item Likert-type scale (1 = Almost Always, 4 = Almost Never) comprised of 8 subscales that assessed auditory processing, visual processing, tactile processing, and eating and feeding behaviors. Mean scores were calculated for the items and each of the subscales. Non-parametric tests examined differences in child and family-level variables. Across all BBCSS subscales, children with an FMR1 premutation displayed more sensory challenges than typically developing children. For six out of the eight subscales, children with the full mutation had the lowest scores indicating more sensory challenges, but this was closely followed by children with an FMR1 premutation. Fragile X status was associated with seven of the eight subscales; children with an FMR1 premutation did not differ from children with FXS on any of the subscales but had more digestive problems than children with no fragile X. Gender, autism status, and family income were also related to sensory sensitivities. In conclusion, these data provide further evidence that some children with an FMR1 premutation experience sensory difficulties that are similar to children with FXS but different than typically developing children.
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spelling doaj.art-a1227550254943a195a8541808eab53f2022-12-21T18:49:22ZengFrontiers Media S.A.Frontiers in Genetics1664-80212018-08-01910.3389/fgene.2018.00351359678Sensory Difficulties in Children With an FMR1 PremutationMelissa Raspa0Amanda Wylie1Anne C. Wheeler2Jacek Kolacz3Anne Edwards4Keri Heilman5Stephen W. Porges6Stephen W. Porges7RTI International, Durham, NC, United StatesRTI International, Durham, NC, United StatesRTI International, Durham, NC, United StatesTraumatic Stress Research Consortium, Kinsey Institute, Indiana University Bloomington, Bloomington, IN, United StatesRTI International, Durham, NC, United StatesDepartment of Psychiatry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United StatesTraumatic Stress Research Consortium, Kinsey Institute, Indiana University Bloomington, Bloomington, IN, United StatesDepartment of Psychiatry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United StatesAbnormal sensory processing is one of the core characteristics of the fragile X phenotype. Studies of young children with fragile X syndrome (FXS) and the FMR1 premutation have shown sensory challenges as early as infancy and into early childhood. This study sought to examine differences in sensory difficulties in children with an FMR1 premutation compared with children with FXS and typically developing children. We conducted an online survey of 176 parents of affected children (FXS or FMR1 premutation). Most respondents were mothers who are Caucasian (86%), have a 4-year college or graduate degree (68%), and are married (92%). Children ranged in age from 5 to 18, with a mean age of 13.0 years (3.3 SD). Participants completed the BBC Sensory Scales, a 50-item Likert-type scale (1 = Almost Always, 4 = Almost Never) comprised of 8 subscales that assessed auditory processing, visual processing, tactile processing, and eating and feeding behaviors. Mean scores were calculated for the items and each of the subscales. Non-parametric tests examined differences in child and family-level variables. Across all BBCSS subscales, children with an FMR1 premutation displayed more sensory challenges than typically developing children. For six out of the eight subscales, children with the full mutation had the lowest scores indicating more sensory challenges, but this was closely followed by children with an FMR1 premutation. Fragile X status was associated with seven of the eight subscales; children with an FMR1 premutation did not differ from children with FXS on any of the subscales but had more digestive problems than children with no fragile X. Gender, autism status, and family income were also related to sensory sensitivities. In conclusion, these data provide further evidence that some children with an FMR1 premutation experience sensory difficulties that are similar to children with FXS but different than typically developing children.https://www.frontiersin.org/article/10.3389/fgene.2018.00351/fullFMR1 premutationfragile X syndromesensory processinghypersensitivityhyposensitivityfeeding behavior
spellingShingle Melissa Raspa
Amanda Wylie
Anne C. Wheeler
Jacek Kolacz
Anne Edwards
Keri Heilman
Stephen W. Porges
Stephen W. Porges
Sensory Difficulties in Children With an FMR1 Premutation
Frontiers in Genetics
FMR1 premutation
fragile X syndrome
sensory processing
hypersensitivity
hyposensitivity
feeding behavior
title Sensory Difficulties in Children With an FMR1 Premutation
title_full Sensory Difficulties in Children With an FMR1 Premutation
title_fullStr Sensory Difficulties in Children With an FMR1 Premutation
title_full_unstemmed Sensory Difficulties in Children With an FMR1 Premutation
title_short Sensory Difficulties in Children With an FMR1 Premutation
title_sort sensory difficulties in children with an fmr1 premutation
topic FMR1 premutation
fragile X syndrome
sensory processing
hypersensitivity
hyposensitivity
feeding behavior
url https://www.frontiersin.org/article/10.3389/fgene.2018.00351/full
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