Deepa R Camenga1,2, Barbara C Banz1, Michael Crowley2, Linda Mayes2, Timothy L Brown3, Kaigang Li4, Federico E Vaca1. 1. Department of Emergency Medicine, Yale Developmental Neurocognitive Driving Simulation Research Center (DrivSim Lab), Yale University School of Medicine, New Haven, Connecticut. 2. Yale Child Study Center, Yale University School of Medicine, New Haven, Connecticut. 3. National Advanced Driving Simulator, The University of Iowa, Iowa City, Iowa. 4. Department of Health & Exercise Science, College of Health & Human Sciences, Colorado State University, Fort Collins, Colorado.
Abstract
Objective: This exploratory study aimed to examine associations between executive function and simulated and self-reported driving behavior among young adults with and without a history of prenatal cocaine exposure (PCE). Methods: Young adult drivers with PCE (n = 38) and with no drug exposure (NDE; n = 25) were recruited from an ongoing longitudinal birth cohort study assessing effects of PCE on development (Mean age = 23.7; 60.3% male; 61.9% with a valid U.S. driver's license, 38.1% report independent driving without a license). Participants completed executive function tasks (i.e., the Stop Signal Task and Groton Maze Learning Task) and self-reported driving measures (i.e., Checkpoints Risky Driving Scale (C-RDS)) outside the cab. Average stop signal reaction time(s) measured inhibitory control, number of exploratory errors measured visuo-spatial working memory, and the total C-RDS score measured self-reported risky driving. Participants completed a high-fidelity driving simulation scenario in a miniSim™ ½ cab National Advanced Driving Simulator (NADS) that yielded indicators of driving performance shown in previous research to correlate with inhibitory control (e.g., average speed, standard deviation lane position (SDLP)) and working memory (minimum headway time, lane departures). Multivariate linear regression models tested whether PCE status, licensure status and executive function measures were associated with simulated driving measures or C-RDS, controlling for sex. Results: Multivariate regression models demonstrated inhibitory control, working memory and PCE group status was not significantly associated with driving outcomes. Licensure was significantly associated with total lane departures (β = -0.66, SE = 0.19; p < 0.01) and C-RDS (β = 5.86, SE = 1.4; p ≤ 0.001).Conclusions: This exploratory study suggests that young adults with PCE have similar neurocognitive performance and driving behaviors as their non-drug exposed (NDE) peers. These findings add to the growing literature demonstrating that the effect of PCE on cognitive functions in childhood may not persist to young adulthood. Further research with similar groups of young drivers in a naturalistic driving context (i.e., instrumented vehicles) is needed to more definitively translate and confirm our findings.
Objective: This exploratory study aimed to examine associations between executive function and simulated and self-reported driving behavior among young adults with and without a history of prenatal cocaine exposure (PCE). Methods: Young adult drivers with PCE (n = 38) and with no drug exposure (NDE; n = 25) were recruited from an ongoing longitudinal birth cohort study assessing effects of PCE on development (Mean age = 23.7; 60.3% male; 61.9% with a valid U.S. driver's license, 38.1% report independent driving without a license). Participants completed executive function tasks (i.e., the Stop Signal Task and Groton Maze Learning Task) and self-reported driving measures (i.e., Checkpoints Risky Driving Scale (C-RDS)) outside the cab. Average stop signal reaction time(s) measured inhibitory control, number of exploratory errors measured visuo-spatial working memory, and the total C-RDS score measured self-reported risky driving. Participants completed a high-fidelity driving simulation scenario in a miniSim™ ½ cab National Advanced Driving Simulator (NADS) that yielded indicators of driving performance shown in previous research to correlate with inhibitory control (e.g., average speed, standard deviation lane position (SDLP)) and working memory (minimum headway time, lane departures). Multivariate linear regression models tested whether PCE status, licensure status and executive function measures were associated with simulated driving measures or C-RDS, controlling for sex. Results: Multivariate regression models demonstrated inhibitory control, working memory and PCE group status was not significantly associated with driving outcomes. Licensure was significantly associated with total lane departures (β = -0.66, SE = 0.19; p < 0.01) and C-RDS (β = 5.86, SE = 1.4; p ≤ 0.001).Conclusions: This exploratory study suggests that young adults with PCE have similar neurocognitive performance and driving behaviors as their non-drug exposed (NDE) peers. These findings add to the growing literature demonstrating that the effect of PCE on cognitive functions in childhood may not persist to young adulthood. Further research with similar groups of young drivers in a naturalistic driving context (i.e., instrumented vehicles) is needed to more definitively translate and confirm our findings.
Entities:
Keywords:
Driving prenatal cocaine exposure; inhibitory control; working memory
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