Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/130374
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Type: Journal article
Title: Abnormalities in orbitofrontal cortex gyrification and mental health outcomes in adolescents born extremely preterm and/or at an extremely low birth weight
Author: Ganella, E.P.
Burnett, A.
Cheong, J.
Thompson, D.
Roberts, G.
Wood, S.
Lee, K.
Duff, J.
Anderson, P.J.
Pantelis, C.
Doyle, L.W.
Bartholomeusz, C.
Citation: Human Brain Mapping, 2015; 36(3):1138-1150
Publisher: Wiley Online library
Issue Date: 2015
ISSN: 1065-9471
1097-0193
Statement of
Responsibility: 
Eleni P Ganella, Alice Burnett, Jeanie Cheong, Deanne Thompson, Gehan Roberts, Stephen Wood ... et al.
Abstract: Extremely preterm (EP, <28 weeks) and/or extremely low birth weight (ELBW, <1000 g) infants are at high risk of aberrant neurodevelopment. Sulcogyral folding patterns of the orbitofrontal cortex (OFC) are determined during the third trimester, however little is known about OFC patterning in EP/ELBW cohorts, for whom this gestational period is disturbed. This study investigated whether the distribution of OFC pattern types and frequency of intermediate and/or posterior orbital sulci (IOS/POS) differed between EP/ELBW and control adolescents. This study also investigated whether OFC pattern type was associated with mental illness or executive function outcome in adolescence. Magnetic resonance images of 194 EP/ELBW and 147 full term (>37 completed weeks) and/or normal birth weight (> 2500 g) adolescents were acquired, from which the OFC pattern of each hemisphere was classified as Type I, II, or III. Compared with controls, more EP/ELBW adolescents possessed a Type II in the left hemisphere (P = 0.019). The EP/ELBW group had fewer IOS (P = 0.024) and more POS (P = 0.021) in the left hemisphere compared with controls. OFC pattern type was not associated with mental illness, however in terms of executive functioning, Type III in the left hemisphere was associated with better parent-reported metacognition scores overall (P = 0.008) and better self-reported behavioral regulation scores in the control group (P = 0.001) compared with Type I. We show, for the first time that EP/ELBW birth is associated with changes in orbitofrontal development, and that specific patterns of OFC folding are associated with executive function at age 18 years in both EP/ELBW and control subjects.
Keywords: Orbitofrontal cortex; extremely preterm; extremely low birth weight; sulcogyral folding patterns; mental illness; executive function
Rights: © 2014 Wiley Periodicals, Inc.
DOI: 10.1002/hbm.22692
Grant ID: http://purl.org/au-research/grants/nhmrc/491246
http://purl.org/au-research/grants/nhmrc/546519
http://purl.org/au-research/grants/nhmrc/1053787
http://purl.org/au-research/grants/nhmrc/1012236
http://purl.org/au-research/grants/nhmrc/628371
http://purl.org/au-research/grants/nhmrc/628386
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