The behavioural and cognitive phenotype of Smith-Magenis syndrome
Background: Attention-seeking and impulsivity are reported to be problematic in Smith-Magenis syndrome (SMS) and have been linked to other challenging behaviours including self-injury and aggression. However, limited research has directly examined these aspects of the SMS behavioural phenotype. Meth...
Main Author: | |
---|---|
Published: |
University of Birmingham
2012
|
Subjects: | |
Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558931 |
id |
ndltd-bl.uk-oai-ethos.bl.uk-558931 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-bl.uk-oai-ethos.bl.uk-5589312019-04-03T06:49:42ZThe behavioural and cognitive phenotype of Smith-Magenis syndromeWilde, Lucy Victoria2012Background: Attention-seeking and impulsivity are reported to be problematic in Smith-Magenis syndrome (SMS) and have been linked to other challenging behaviours including self-injury and aggression. However, limited research has directly examined these aspects of the SMS behavioural phenotype. Method: A survey study refined descriptions of atypical social behaviour. Two further studies directly observed social behaviour, in both naturalistic settings and structured social situations manipulating familiarity of interacting adults and level of attention. A final study evaluated whether response inhibition, measured using cognitive assessments, underpins impulsive behaviour in SMS. Results: Caregivers reported elevated ‘attachment’ to particular people, but not generally elevated sociability. Natural observations revealed preferences for adult attention and manipulations of social variables indicated preference for familiar adults. Impulsivity was not associated with inhibition deficits, however emotional control was. Conclusions: Reports of atypical social behaviour were supported, characterised by seeking attention from familiar adults. Associations between impulsivity and emotional control implicate specific deficits in delay of gratification (whereby delay causes aversive emotional responses). Considering these findings in an integrated model of the SMS behavioural phenotype, including pathways from genetic difference to behaviour and environmental influences, may facilitate targeted interventions for challenging behaviours.155BF PsychologyUniversity of Birminghamhttps://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558931http://etheses.bham.ac.uk//id/eprint/3698/Electronic Thesis or Dissertation |
collection |
NDLTD |
sources |
NDLTD |
topic |
155 BF Psychology |
spellingShingle |
155 BF Psychology Wilde, Lucy Victoria The behavioural and cognitive phenotype of Smith-Magenis syndrome |
description |
Background: Attention-seeking and impulsivity are reported to be problematic in Smith-Magenis syndrome (SMS) and have been linked to other challenging behaviours including self-injury and aggression. However, limited research has directly examined these aspects of the SMS behavioural phenotype. Method: A survey study refined descriptions of atypical social behaviour. Two further studies directly observed social behaviour, in both naturalistic settings and structured social situations manipulating familiarity of interacting adults and level of attention. A final study evaluated whether response inhibition, measured using cognitive assessments, underpins impulsive behaviour in SMS. Results: Caregivers reported elevated ‘attachment’ to particular people, but not generally elevated sociability. Natural observations revealed preferences for adult attention and manipulations of social variables indicated preference for familiar adults. Impulsivity was not associated with inhibition deficits, however emotional control was. Conclusions: Reports of atypical social behaviour were supported, characterised by seeking attention from familiar adults. Associations between impulsivity and emotional control implicate specific deficits in delay of gratification (whereby delay causes aversive emotional responses). Considering these findings in an integrated model of the SMS behavioural phenotype, including pathways from genetic difference to behaviour and environmental influences, may facilitate targeted interventions for challenging behaviours. |
author |
Wilde, Lucy Victoria |
author_facet |
Wilde, Lucy Victoria |
author_sort |
Wilde, Lucy Victoria |
title |
The behavioural and cognitive phenotype of Smith-Magenis syndrome |
title_short |
The behavioural and cognitive phenotype of Smith-Magenis syndrome |
title_full |
The behavioural and cognitive phenotype of Smith-Magenis syndrome |
title_fullStr |
The behavioural and cognitive phenotype of Smith-Magenis syndrome |
title_full_unstemmed |
The behavioural and cognitive phenotype of Smith-Magenis syndrome |
title_sort |
behavioural and cognitive phenotype of smith-magenis syndrome |
publisher |
University of Birmingham |
publishDate |
2012 |
url |
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558931 |
work_keys_str_mv |
AT wildelucyvictoria thebehaviouralandcognitivephenotypeofsmithmagenissyndrome AT wildelucyvictoria behaviouralandcognitivephenotypeofsmithmagenissyndrome |
_version_ |
1719014919649624064 |