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Using drift diffusion modeling to understand inattentive behavior in preterm and term-born children.

Jenny Retzler; Chris Retzler; Madeleine Groom; Samantha Johnson; Lucy Cragg

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Title: Using drift diffusion modeling to understand inattentive behavior in preterm and term-born children.
Author: Jenny Retzler; Chris Retzler; Madeleine Groom; Samantha Johnson; Lucy Cragg
Source: Neuropsychology · DOI 10.1037/neu0000590 Published 2019-10-03 · Open source record
License: CC BY 3.0 deed

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Objective: Children born very preterm are at increased risk of inattention, but it remains unclear whether the underlying processes are the same as in their term-born peers. Drift diffusion modeling (DDM) may better characterize the cognitive processes underlying inattention than standard reaction time (RT) measures. This study used DDM to compare the processes related to inattentive behavior in preterm and term-born children. Method: Performance on a cued continuous performance task was compared between 33 children born very preterm (VP; ≤32 weeks’ gestation) and 32 term-born peers (≥37 weeks’ gestation), aged 8–11 years. Both groups included children with a wide spectrum of parent-rated inattention (above average attention to severe inattention). Performance was defined using standard measures (RT, RT variability and accuracy) and modeled using a DDM. A hierarchical regression assessed the extent to which standard or DDM measures explained variance in parent-rated inattention and whether these relationships differed between VP and term-born children. Results: There were no group differences in performance on standard or DDM measures of task performance. Parent-rated inattention correlated significantly with hit rate, RT variability, and drift rate (a DDM estimate of processing efficiency) in one or both groups. Regression analysis revealed that drift rate was the best predictor of parent-rated inattention. This relationship did not differ significantly between groups. Conclusions: Findings suggest that less efficient information processing is a common mechanism underlying inattention in both VP and term-born children. This study demonstrates the benefits of using DDM to better characterize atypical cognitive processing in clinical samples. General Scientific Summary Less efficient information processing during a sustained attention task explained individual differences in inattentive behavior. This was true both in 8- to 11-year-olds born very preterm and their term-born peers. Drift diffusion modeling provides a way to help us better characterize the processes that underlie task performance. This is valuable for understanding processing differences that affect clinical groups.

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Original journal: Neuropsychology
Published: 2019-10-03
DOI: 10.1037/neu0000590
Open record: PMC6939604

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