Brain Training Makes Professional Drivers Sharper, But Not Safer on the Road

Professional drivers spend thousands of hours behind the wheel, and their brains are their most important piece of equipment. A new pilot study published in Discover Psychology by Jose L. Tapia of the Universitat de València, Paula Fernández of the Universidad de Oviedo, and Jon Andoni Duñabeitia of the Universidad Nebrija set out to answer two questions that matter enormously for road safety: what do the cognitive profiles of professional drivers actually look like, and can a structured computerized cognitive training program sharpen the mental skills that keep buses and trucks safe? The answers, drawn from a two-experiment design involving 160 drivers, are both encouraging and sobering.

The first part of the research, Experiment 1, was a large-scale assessment effort. One hundred and sixty professional drivers completed an extensive battery of cognitive tests designed to map their abilities across multiple domains, from attention and processing speed to coordination. The researchers then examined how these measured cognitive abilities correlated with real-world driving safety metrics collected from the drivers’ professional records. This approach treats the laboratory and the road as connected spaces, asking whether what a psychometric test captures in a quiet testing room predicts what happens when a heavy vehicle merges into traffic at the end of a long shift.

The correlations were revealing. The most striking finding was that coordination abilities were inversely correlated with crash rates, meaning that drivers with stronger coordination tended to have fewer crashes. In practical terms, the capacity to integrate motor and perceptual information smoothly appears to be one of the mental resources that separates safer professional drivers from riskier ones. This kind of evidence matters because it identifies which cognitive domains are meaningfully tied to safety outcomes rather than merely to test performance, giving intervention designers a concrete target for training programs.

Building on that foundation, the team moved to Experiment 2, a pilot intervention study. A subset of 47 drivers drawn from the original 160 volunteered for an eight-week computerized cognitive training, or CCT, program. CCT is a family of interventions in which participants repeatedly practice targeted cognitive tasks on a computer, with difficulty typically adapted to their performance level. The idea is that, much like physical exercise strengthens muscles, repeated mental exercise can strengthen specific cognitive functions. Before and after the training period, the researchers measured cognitive performance, driving safety metrics, and self-reported driving styles, allowing a direct comparison of what changed and what did not.

The cognitive results were clear. The eight-week program produced significant improvements in the cognitive domains that were trained. In other words, the drivers genuinely got better at the mental tasks they practiced, and the gains showed up on standardized assessments administered after the intervention. For a pilot study, this is an important proof of concept: professional drivers, a population often assumed to be at ceiling because of years of demanding on-the-job experience, still had room to improve, and a relatively short training window was enough to produce measurable change.

The behavioral results were more complicated, and this is where the study delivers its most valuable lesson. The drivers’ self-reported driving styles, assessed before and after the intervention, remained stable, which the authors describe as an expected outcome. Driving style reflects long-standing habits and preferences behind the wheel, the kind of deeply ingrained behavior pattern that a cognitive exercise program would not plausibly rewrite in two months. If anything, the stability of driving styles serves as a sanity check on the data, confirming that the training did not simply make drivers answer questionnaires differently.

More significantly, no improvements were observed in the objective driving metrics after training. Crash rates and related safety indicators did not benefit from the cognitive gains. The authors conclude that while computerized cognitive training effectively enhances cognitive performance among professional drivers, its transfer effects to driving safety metrics remain unsubstantiated. This is a finding that resonates far beyond the driving literature, because the question of transfer, whether training one mental skill improves performance on real-world tasks that depend on that skill, has been one of the most contested issues in cognitive psychology and neuroscience for decades.

The transfer problem has a long scientific history. Laboratory studies have repeatedly shown that people can improve on trained tasks, yet critics have argued that these gains often reflect task-specific learning rather than a general upgrade of the underlying cognitive system. Meta-analyses across domains as varied as working memory training and video game practice have generally found that far transfer, improvement on dissimilar real-world outcomes, is elusive. The present study adds a professionally relevant data point to that debate: even in a population where cognitive skill plausibly matters for daily performance, and even where coordination abilities were demonstrably linked to crash history, boosting cognition directly did not automatically translate into fewer incidents on the road.

Why might the transfer have failed? One possibility is the gap between what CCT tasks train and what driving demands. Driving is a complex, dynamic, multitask activity embedded in a rich perceptual and social environment, whereas computerized exercises are typically isolated, abstract, and repetitive. Another possibility is dose and duration: eight weeks may be sufficient to move test scores but insufficient to alter the accumulated behavioral patterns that determine crash risk over months and years. A third possibility is that crash rates are relatively rare events influenced by factors far beyond cognition, including fatigue, scheduling, road conditions, and traffic exposure, making them statistically insensitive to modest cognitive changes in a 47-person sample over a short period. The authors are appropriately cautious, framing this as a pilot study whose findings offer a preliminary foundation for further research rather than a definitive verdict on cognitive training’s potential.

For the transportation industry, the implications are twofold. On one hand, the study confirms that cognitive assessment is informative for professional drivers: the battery revealed meaningful individual differences, and at least one domain, coordination, tracked real-world safety records. Screening tools that measure such abilities could conceivably help fleet operators understand their drivers’ cognitive profiles, even if they cannot yet promise that training will reduce crashes. On the other hand, companies investing in off-the-shelf brain training programs in the hope of direct safety dividends should temper their expectations. Enhancing cognition and enhancing safety are, for now, two separate goals, and the bridge between them has yet to be built.

The research, approved by the Research Ethics Committee of Nebrija University and conducted with written informed consent from all participants, was funded by Spanish national grants and supported logistically by the transport company Alsa, which facilitated access to the driver sample. As an open-access publication, it invites replication and extension by other teams. The authors point toward the road ahead explicitly: future work needs to explore the relationship between cognitive enhancements and driving outcomes more deeply, and to evaluate under what conditions, if any, computerized cognitive training could contribute to improving road safety. Until then, the study stands as a careful, honest data point in a field hungry for solutions, showing that the driver’s brain is trainable, while the driver’s safety record, for now, keeps its own counsel.

Subject of Research: The effect of computerized cognitive training on the cognitive profiles and real-world driving performance of professional drivers

Article Title: Impact of cognitive training on professional drivers’ cognitive profiles and performance

Article References: Impact of cognitive training on professional drivers’ cognitive profiles and performance. (n.d.). https://doi.org/10.1007/s44202-026-00792-7

Image Credits: AI Generated

DOI: 10.1007/s44202-026-00792-7

Keywords: professional drivers, cognitive training, computerized cognitive training, driving safety, cognitive profile, coordination, crash rates, transfer effects, driving styles, pilot study, cognitive enhancement, road safety