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Body representation difficulties in children and adolescents with autism may be due to delayed development of visuo-tactile temporal binding

Body representation difficulties in children and adolescents with autism may be due to delayed development of visuo-tactile temporal binding
Body representation difficulties in children and adolescents with autism may be due to delayed development of visuo-tactile temporal binding
Recent research suggests visuo-tactile binding is temporally extended in autism spectrum disorders (ASD), although it is not clear whether this specifically underlies altered body representation in this population. In the current study children and adolescents with ASD, and typically developing controls, placed their hand into mediated reality system (MIRAGE) and saw two identical live video images of their own right hand. One image was in the proprioceptively correct location (veridical hand) and the other was displaced to either side. While visuo-tactile feedback was applied via brushstroke to the participant’s (unseen) right finger, they viewed one hand image receiving synchronous brushstrokes and the other receiving brushstrokes with a temporal delay (60, 180 and 300 ms). After brushing, both images disappeared from view and participants pointed to a target, with direction of movement indicating which hand was embodied. ASD participants, like younger mental aged-matched controls, showed reduced embodiment of the spatially incongruent, but temporally congruent, hand compared to chronologically age-matched controls at shorter temporal delays. This suggests development of visuo-tactile integration may be delayed in ASD. Findings are discussed in relation to atypical body representation in ASD and how this may contribute to social and sensory difficulties within this population.
1878-9293
78-85
Ropar, Danielle
9b2bfacc-9047-4961-9cf3-874993e7c021
Greenfield, Katie
070c2fb7-b7f1-4842-a9a5-db04252a7ed1
Smith, Alastair
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Carey, Mark
34056f42-aa87-473e-a628-8845ad6bc75b
Newport, Roger
f7c6afdb-2395-4d3c-a1a1-f28646479b04
Ropar, Danielle
9b2bfacc-9047-4961-9cf3-874993e7c021
Greenfield, Katie
070c2fb7-b7f1-4842-a9a5-db04252a7ed1
Smith, Alastair
60dc096d-d461-4991-9a80-b70106531b4f
Carey, Mark
34056f42-aa87-473e-a628-8845ad6bc75b
Newport, Roger
f7c6afdb-2395-4d3c-a1a1-f28646479b04

Ropar, Danielle, Greenfield, Katie, Smith, Alastair, Carey, Mark and Newport, Roger (2018) Body representation difficulties in children and adolescents with autism may be due to delayed development of visuo-tactile temporal binding. Developmental Cognitive Neuroscience, 29, 78-85, [29]. (doi:10.1016/j.dcn.2017.04.007).

Record type: Article

Abstract

Recent research suggests visuo-tactile binding is temporally extended in autism spectrum disorders (ASD), although it is not clear whether this specifically underlies altered body representation in this population. In the current study children and adolescents with ASD, and typically developing controls, placed their hand into mediated reality system (MIRAGE) and saw two identical live video images of their own right hand. One image was in the proprioceptively correct location (veridical hand) and the other was displaced to either side. While visuo-tactile feedback was applied via brushstroke to the participant’s (unseen) right finger, they viewed one hand image receiving synchronous brushstrokes and the other receiving brushstrokes with a temporal delay (60, 180 and 300 ms). After brushing, both images disappeared from view and participants pointed to a target, with direction of movement indicating which hand was embodied. ASD participants, like younger mental aged-matched controls, showed reduced embodiment of the spatially incongruent, but temporally congruent, hand compared to chronologically age-matched controls at shorter temporal delays. This suggests development of visuo-tactile integration may be delayed in ASD. Findings are discussed in relation to atypical body representation in ASD and how this may contribute to social and sensory difficulties within this population.

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Accepted/In Press date: 18 April 2017
e-pub ahead of print date: 27 April 2017
Published date: January 2018

Identifiers

Local EPrints ID: 427699
URI: http://eprints.soton.ac.uk/id/eprint/427699
ISSN: 1878-9293
PURE UUID: 9f00af24-9d4c-4fa9-94a9-1e14fea29676
ORCID for Katie Greenfield: ORCID iD orcid.org/0000-0001-8827-6543

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Date deposited: 25 Jan 2019 17:30
Last modified: 08 Apr 2020 00:44

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