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Face processing in early development: a systematic review of behavioral studies and considerations in times of COVID-19 pandemic
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A prospective study of associations between early fearfulness and perceptual sensitivity and later restricted and repetitive behaviours in infants with typical and elevated likelihood of Autism
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Abstract:
Autism is diagnosed based on social and communication difficulties, restricted and repetitive behaviours (RRB) and sensory anomalies. Existing evidence indicates that anxiety and atypical sensory features are associated with RRB, but cannot clarify the order of emergence of these traits. This study uses data from a prospective longitudinal study of infants with and without a family history of autism (N=247; Elevated Likelihood N=170, Typical Likelihood N=77). Longitudinal cross-lag models tested bidirectional pathways between parent-rated infant fear/shyness and perceptual sensitivity at 8, 14 and 24 months, and associations between these domains and parent-rated RRB and social communication scores at 36 months. In addition to within-domain continuity, higher levels of fear/shyness at 14 months were associated with higher levels of perceptual sensitivity at 24 months. Higher levels of both fear/shyness and perceptual sensitivity at 24 months were associated with greater RRB and social communication scores at 36 months. Results demonstrate the directionality of developmental pathways between fear/shyness and perceptual sensitivity in infancy and toddlerhood, but question theories that argue that these domains specifically underlie RRB rather than autism. Identifying how early emerging anxiety and sensory behaviours relate to later autism is important for understanding pathways and developing targeted support for autistic children. Lay abstract Restricted interests and repetitive behaviours are central to the diagnosis of autism and can have profound effects on daily activities and quality of life. These challenges are also linked to other co-occurring conditions such as anxiety and sensory sensitivities. Here, we looked at whether early emerging signs of anxiety and sensory problems appear before symptoms of autism by studying infants with a family history of autism, as these infants are more likely to develop autism themselves. Studying infant siblings provides an opportunity for researchers to focus on early developmental markers of autism as these infants can be followed from birth. This study found that early infant signs of anxiety (e.g. fear/shyness) predicted later perceptual sensitivity, and those infants who scored higher on fear/shyness and sensitivity were more likely to experience more persistent repetitive behaviours, but also social and communication difficulties in toddlerhood. Early signs of anxiety and perceptual sensitivity may thus relate to both later social difficulties and repetitive behaviours. These findings support the importance of further research exploring the causal links between these domains in relation to autism, resulting in increased understanding of children who go onto develop autism in the future and guiding early interventions and supports.
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Keyword:
Psychological Sciences
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URL: https://eprints.bbk.ac.uk/id/eprint/46942/3/46942.pdf
https://doi.org/10.1177/13623613211068932
https://eprints.bbk.ac.uk/id/eprint/46942/
https://eprints.bbk.ac.uk/id/eprint/46942/4/46942a.pdf
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Neural and behavioural indices of face processing in siblings of children with autism spectrum disorder (ASD): a longitudinal study from infancy to mid-childhood
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Attentional abilities constrain language development: a cross-syndrome infant/toddler study
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Increased cortical reactivity to repeated tones at 8 months in infants with later ASD
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Gaze following and attention to objects in infants at familial risk for ASD
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Randomised trial of a parent-mediated intervention for infants at high risk for autism: longitudinal outcomes to age 3 years
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The motivation for very early intervention for infants at high risk for autism spectrum disorders
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