Grace Teo

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UNLABELLED Vigilance represents the capacity to sustain attention to any environmental source of information over prolonged periods on watch. Most stimuli used in vigilance research over the previous six decades have been relatively simple and often purport to represent important aspects of detection and discrimination tasks in real-world settings. Such(More)
The goal for this study was to test assertions of the dynamic adaptability theory of stress, which proposes two fundamental task dimensions, information rate (temporal properties of a task) and information structure (spatial properties of a task). The theory predicts adaptive stability across stress magnitudes, with progressive and precipitous changes in(More)
The driving task is highly complex and places considerable perceptual, physical and cognitive demands on the driver. As driving is fundamentally an information processing activity, distracted or impaired drivers have diminished safety margins compared with non- distracted drivers (Hancock and Parasuraman, 1992; TRB 1998 a & b). This competition for sensory(More)
The present study investigated the effects of task type (cognitive vs. sensory) and source complexity (number of displays to be monitored) of the performance, workload, and stress associated with vigilance. Results affirmed the utility of the cognitive-sensory task distinction of the vigilance taxonomy, although in contrast to previous research the(More)
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