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Updated: Apr 18, 2026

P50 Sensory Gating in Infants
Published on: December 26, 2013
Atypical sensory processing is common in extremely low gestational age children
Petri Rahkonen1, Aulikki Lano, Anu-Katriina Pesonen
1Department of Pediatrics, Children's Hospital, University of Helsinki, Helsinki, Finland.
Insights
Atypical sensory processing is common in extremely low gestational age (ELGA) children. Neonatal brain abnormalities and PDA surgery are linked to specific sensory issues in these children.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Sensory Processing
Background:
- Atypical sensory processing is prevalent in children born extremely prematurely.
- Understanding sensory processing in extremely low gestational age (ELGA) children is crucial for early intervention.
Purpose of the Study:
- To investigate sensory processing abilities in ELGA children.
- To analyze associated neonatal risk factors, neuroanatomical findings, and neurodevelopmental outcomes.
Main Methods:
- Prospective study of 44 ELGA children.
- Brain MRI at term-equivalent age.
- Sensory processing assessed with Infant/Toddler Sensory Profile.
- Neurodevelopmental assessment using Hempel, Griffiths, and Bayley Scales.
Main Results:
- Half of ELGA children exhibited atypical sensory profiles (<-1 SD).
- Low registration was the most common pattern (23%).
- Sensation seeking correlated with brain MRI abnormalities (p < 0.01).
- Atypical oral sensory processing linked to PDA surgical closure (p = 0.02, adjusted p < 0.01).
Conclusions:
- Atypical sensory processing is common in ELGA children.
- Neonatal neuroanatomical lesions are associated with specific sensory behavioral responses.
- Surgical closure of PDA may contribute to feeding problems via atypical oral sensory processing.
Aim:
Atypical sensory processing is common in children born extremely prematurely. We investigated sensory processing abilities in extremely low gestational age (ELGA) children and analysed associated neonatal risk factors, neuroanatomical findings and neurodevelopmental outcome.
Methods:
We carried out a prospective study of 44 ELGA children, including 42 who had undergone brain magnetic resonance imaging (MRI) at term-equivalent age, when they were 2 years of corrected age. Their sensory processing abilities were assessed with the Infant/Toddler Sensory Profile questionnaire and their neurodevelopmental with a structured Hempel neurological examination, Griffiths Mental Developmental Scales and Bayley Scales of Infant and Toddler Development Third Edition.
Results:
Sensory profiles were definitely or probably atypical (<-1 SD) in half of the ELGA children, and the most common behavioural pattern was low registration (23%). Sensation seeking was associated with abnormalities in grey and/or white matter in the brain MRI (p < 0.01). Atypical oral sensory processing was associated with surgical closure of the patent ductus arteriosus (p = 0.02, adjusted p < 0.01).
Conclusion:
Atypical sensory processing in ELGA children was common, and children with neonatal neuroanatomical lesions tended to present specific behavioural responses to sensory stimuli. Surgical closure of the patent ductus arteriosus may predispose infants to feeding problems due to atypical oral sensory processing.
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