The relationship between workload and mind wandering in driving

[Speaker] Zhang, Yuyu:1
[Co-author] Kumada, Takatsune:1
1:Kyoto university (Japan)

To examine the relationship between workload and mind wandering, an experiment on driving simulator was conducted. Participants (N=40) asked to perform a car following task and reported whether they were on-task or mind wandering when tone probe were given during driving, and reported their workload (using NASA-TLX) after driving. The result could be interpreted that workload and mind wandering could relate to each other independently and interactively. They are independent, because attentional resource is allocated to a driving task and mind wandering with the allocation being mediated to balance. Participants could drive despite the experience of mind wandering, who with higher workload allocate more capacity for driving tasks, less for mind wandering. However, workload and mind wandering are also interactive with each other. As workload increases with time, attention-control capability decreases, then spontaneous mind wandering increases.
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