Functional Magnetic Resonance Imaging during Visual Perception Tasks in Adolescents Born Prematurely

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PIPARI Study Grp , Lind , A , Haataja , L , Laasonen , M , Saunavaara , V , Railo , H , Lehtonen , T , Vorobyev , V , Uusitalo , K , Lahti , K & Parkkola , R 2021 , ' Functional Magnetic Resonance Imaging during Visual Perception Tasks in Adolescents Born Prematurely ' , Journal of the International Neuropsychological Society , vol. 27 , no. 3 , 1355617720000867 , pp. 270-281 .

Title: Functional Magnetic Resonance Imaging during Visual Perception Tasks in Adolescents Born Prematurely
Author: PIPARI Study Grp; Lind, Annika; Haataja, Leena; Laasonen, Marja; Saunavaara, Virva; Railo, Henry; Lehtonen, Tuomo; Vorobyev, Victor; Uusitalo, Karoliina; Lahti, Katri; Parkkola, Riitta
Other contributor: University of Helsinki, HUS Children and Adolescents
University of Helsinki, Department of Psychology and Logopedics

Date: 2021-03
Language: eng
Number of pages: 12
Belongs to series: Journal of the International Neuropsychological Society
ISSN: 1355-6177
Abstract: Objectives: Impairments in visual perception are among the most common developmental difficulties related to being born prematurely, and they are often accompanied by problems in other developmental domains. Neural activation in participants born prematurely and full-term during tasks that assess several areas of visual perception has not been studied. To better understand the neural substrates of the visual perceptual impairments, we compared behavioral performance and brain activations during visual perception tasks in adolescents born very preterm (birth weight <= 1500 g or gestational age <32 weeks) and full-term. Methods: Tasks assessing visual closure, discrimination of a deviating figure, and discrimination of figure and ground from the Motor-Free Visual Perception Test, Third Edition were performed by participants born very preterm (n = 37) and full-term (n = 34) at 12 years of age during functional magnetic resonance imaging. Results: Behavioral performance in the visual perception tasks did not differ between the groups. However, during the visual closure task, brain activation was significantly stronger in the group born very preterm in a number of areas including the frontal, anterior cingulate, temporal, and posterior medial parietal/cingulate cortices, as well as in parts of the cerebellum, thalamus, and caudate nucleus. Conclusions: Differing activations during the visual closure task potentially reflect a compensatory neural process related to premature birth or lesser neural efficiency or may be a result of the use of compensatory behavioral strategies in the study group born very preterm.
Subject: 3112 Neurosciences
3124 Neurology and psychiatry
Visual perception
Developmental follow-up
Very low birth weight
Very preterm
Visual closure
Visual discrimination
3123 Gynaecology and paediatrics
515 Psychology

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