The distracted mind on the wheel: Overall propensity to mind wandering is associated with road crash responsibility
DOI: 10.1371/journal.pone.0181327
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Summary
This study investigates the relationship between mind wandering and road crash responsibility, addressing a gap in understanding internal distractions as risk factors for traffic accidents. While external distractions like phone use are well-regulated, internal attentional lapses, specifically mind wandering, have gained scientific interest as potential contributors to the roughly half of crashes attributed to inattention. The researchers aimed to distinguish between mind wandering as a "state" (disturbing thoughts immediately preceding a crash) and as a "trait" (a chronic, individual propensity to mind wander in daily life). By assessing both, the study sought to determine if the association between mind wandering and crash responsibility is causal or merely a result of self-explaining biases where responsible drivers report distractions to minimize blame. The research employed a responsibility case-control design involving 954 drivers injured in road crashes and admitted to the emergency department of a university hospital in Bordeaux, France, between 2013 and 2015. Participants were classified as cases (responsible or contributory to the crash) or controls (not responsible) based on a standardized responsibility scoring tool that accounted for mitigating factors like road conditions and vehicle type. Data were collected via interviews assessing mind wandering state (self-reported disturbing thoughts with a perturbation rating >4), mind wandering trait (frequency of daydreaming and unrelated thoughts during driving/reading), and confounders including alcohol use, sleep deprivation, age, sex, and vehicle type. Multivariate logistic regression was used to analyze the associations, with sensitivity analyses performed to test robustness against potential biases such as pain levels and chronic disease status. The results demonstrated that both mind wandering state and trait were independently and significantly associated with crash responsibility. Drivers reporting disturbing thoughts just before the crash had an adjusted odds ratio (OR) of 2.51 (95% CI: 1.64–3.83) for being responsible, while those with a high mind wandering trait had an adjusted OR of 1.62 (95% CI: 1.22–2.16). These associations persisted after adjusting for known risk factors such as alcohol consumption, sleepiness, and vehicle type. Sensitivity analyses confirmed the stability of these findings across different subgroups and responsibility score thresholds. Additionally, individuals with a high mind wandering trait were more likely to report disturbing thoughts, suggesting a consistent causal pathway where intrusive thoughts disrupt automated driving tasks. The study concludes that mind wandering, particularly when involving disturbing or intrusive thoughts, is a significant independent risk factor for road crash responsibility. The independent association of the mind wandering trait strengthens the argument for a causal link, reducing the likelihood that the findings are solely due to desirability bias. The authors suggest that mind wandering leads to perceptual decoupling and impaired attention management, compromising safe driving. These findings highlight the need for interventions targeting internal distractions, such as advanced driver assistance systems or psychological training to improve thought control, to further enhance road safety beyond current regulations focusing on external distractions and substance use.
Provenance
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | OpenAlex-citations | — | — | 1 | 2026-06-17 |
| archive | success | unpaywall | — | — | 2 | 2026-06-25 |
| extract | success | cached | — | — | 2 | 2026-06-25 |
| clean | success | clean | — | — | 1 | 2026-06-18 |
| chunk | success | chunk | — | — | 1 | 2026-06-18 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-18 |
| promote | success | — | — | — | 1 | 2026-06-17 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-25 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-18 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-25; verification: verified.
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- Empirical Findings: observational prevalence
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