Individuals who do not fulfill required visual field standards have their driving license withdrawn in Sweden. However, understanding of the ability to compensate for this loss is limited. This study aimed to determine if reaction time and cognitive performance are important for safe driving in visual field loss (VFL) individuals. Visually demanding reaction time tasks of different complexity, for example, can help one understand why some VFL individuals drive as safely as normally sighted individuals. Twenty VFL individuals and 83 normally sighted individuals participated in a driving simulator experiment and an additional test battery. The driving task categorized VFL participants into two subgroups: passed or failed. Three reaction time tasks, four cognitive tests, and two meta-cognitive scales were completed. The passed VFL subgroup was faster than the failed subgroup in the context-dependent reaction time task and slower in the context-independent reaction time task. The passed subgroup performed equally well, or less well, on the cognitive tasks compared to the failed subgroup. The VFL participants performed less well than the normally sighted individuals on most cognitive tasks. However, VFL participants did not reflect on their driving ability (in meta-cognitive scales) in the same way as normally sighted individuals. There appear to be VFL subgroups in terms of ability to drive safely. Reaction time is important, but context dependent. Cognitive context-independent tests appear unrelated to driving test outcome for VFL individuals. The problems with context-independent testing of perceptual, cognitive, and meta-cognitive abilities when predicting safe driving capabilities are discussed.

中文翻译：

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反应时间、认知和元认知能力对有视觉缺陷的驾驶员的重要性

不符合要求的视野标准的个人在瑞典吊销驾驶执照。然而，对补偿这种损失的能力的理解是有限的。本研究旨在确定反应时间和认知能力是否对视野丧失 (VFL) 个体的安全驾驶很重要。例如，具有不同复杂性的视觉要求高的反应时间任务可以帮助人们理解为什么一些 VFL 人像正常视力的人一样安全地驾驶。20 名 VFL 人和 83 名视力正常的人参加了驾驶模拟器实验和额外的测试电池。驾驶任务将 VFL 参与者分为两个子组：通过或失败。完成了三个反应时间任务、四个认知测试和两个元认知量表。通过的 VFL 子组在上下文相关反应时间任务中比失败子组快，在上下文无关反应时间任务中比失败子组慢。与失败的子组相比，通过的子组在认知任务上的表现同样好，或不太好。VFL 参与者在大多数认知任务上的表现不如正常视力的人。然而，VFL 参与者并没有像正常视力的人那样反思他们的驾驶能力（在元认知量表中）。就安全驾驶能力而言，似乎存在 VFL 亚组。反应时间很重要，但取决于上下文。认知情境独立测试似乎与 VFL 个人的驾驶测试结果无关。感知、认知、