Similarly, accuracy on a peripheral discrimination task is higher when a concurrent central task is low in perceptual load than when it is high (Williams, 1985).
Performance on a peripheral detection task (PDT) – a measure of mental workload – presented while driving, was impaired by mobile phone conversation in all environments.
A recent study by Kraft et al. [35] shows that in a peripheral discrimination task, performance is always better when the stimuli are presented across hemifields than within.
In addition, a peripheral awareness task is included in which the subject responds to a stimulus presented in the periphery of vision, while simultaneously attending to the tracking task described above.
This study showed that the detection performance in the peripheral task when attention was focused on the central task depended on the nature of the stimuli used: some discrimination tasks, even very complex, were left almost unaltered by the retrieval of attention, while other tasks, seemingly simple, were much impaired in the absence of attention.
The peripheral task required the subject to respond with one of four arrow keys (up, down, left, right) in the direction of the critical stimulus (red octagon among other shapes).
To test these possibilities, the current experiments assessed human performance within a dual-task paradigm pairing a central manual tracking task with a peripheral redundant-target task.
In addition, the control system must respond fast, be accurate during transient events and present low computational burden to the GSC which must perform a lot of other peripheral tasks.
Brain imaging studies using ERP or fMRI suggest a greater recruitment of attention-related brain networks under peripheral tasks in deaf as compared to hearing individuals [5] [9].
In the 1990s, companies began outsourcing not only peripheral tasks but also pieces of their core business, a trend Davis dubs "Nikefication," after the shoe marketer known for delegating shoe manufacturing to independently owned factories in Asia.
Military leaders also claim that "peripheral" tasks, like peacekeeping in Bosnia, take money from their primary mission, fighting wars, and contribute to a decline in the troops' combat skills.
