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Fischer JT, Cirino PT, DeMaster D, Alfano C, Bick J, Fan W, Ewing-Cobbs L. Frontostriatal White Matter Integrity Relations with "Cool" and "Hot" Self-Regulation after Pediatric Traumatic Brain Injury. J Neurotrauma 2020; 38:122-132. [PMID: 32993456 DOI: 10.1089/neu.2019.6937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Traumatic brain injury (TBI) produces microstructural damage to white matter pathways connecting neural structures in pre-frontal and striatal regions involved in self-regulation (SR). Dorsal and ventral frontostriatal pathways have been linked to cognitive ("cool") and emotional ("hot") SR, respectively. We evaluated the relation of frontostriatal pathway fractional anisotropy (FA) 2 months post-TBI on cool and hot SR assessed 7 months post-TBI. Participants were 8-15 years of age, including children with uncomplicated mild TBI (mTBI; n = 24), more severe TBI (complicated-mild, moderate, severe [cms]TBI; n = 60), and typically developing (TD) children (n = 55). Diffusion tensor tractography was used to map frontostriatal pathways. Cool SR included focused and sustained attention performance, and parent-reported attention, whereas hot SR included risk-taking performance and parent-reported emotional control. Multivariate general linear models showed that children with cmsTBI had greater parent-reported cool and hot SR difficulties and lower dorsal and ventral FA than TD children. Focused attention, risk taking, and emotional control correlated with FA of specific dorsal and ventral pathways; however, only the effect of TBI on focused attention was mediated by integrity of dorsal pathways. Results suggest that frontostriatal FA may serve as a biomarker of risk for SR difficulties or to assess response to interventions targeting SR in pediatric TBI and in broader neurodevelopmental populations.
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Affiliation(s)
- Jesse T Fischer
- Department of Psychology, Evaluation, and Statistics, University of Houston, Houston, Texas, USA
| | - Paul T Cirino
- Department of Psychology, Evaluation, and Statistics, University of Houston, Houston, Texas, USA
| | - Dana DeMaster
- Department of Pediatrics, University of Texas Health Sciences at Houston, Houston, Texas, USA
| | - Candice Alfano
- Department of Psychology, Evaluation, and Statistics, University of Houston, Houston, Texas, USA
| | - Johanna Bick
- Department of Psychology, Evaluation, and Statistics, University of Houston, Houston, Texas, USA
| | - Weihua Fan
- Texas Institute for Measurement, Evaluation, and Statistics, University of Houston, Houston, Texas, USA
| | - Linda Ewing-Cobbs
- Department of Pediatrics, University of Texas Health Sciences at Houston, Houston, Texas, USA
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