Essay on The Effects Of Sleep Deprivation On Performance

1210 Words Dec 1st, 2016 5 Pages
Conversely, the state instability theory goes beyond the lapse hypothesis to explain performance deficits after sleep deprivation. In one study done by Doran et al. (2001), researchers hypothesized that the effect of sleep deprivation on performance could be explained by an increased homeostatic urge to sleep, which leads to more lapses in response. They presented the PVT task for TSD participants who experienced 88 hours of sleep deprivation and had a control group of NAP subjects that had two hours of sleep in every 12 hours. The state instability hypothesis was examined by comparing performance on three levels: high-signal-load, short-duration, and sustained-attention task. The researchers tried to find evidence that showed that as with an increase in sleep loss, there is an increase in performance variability, as a direct function of the interaction between the homeostatic system promoting sleep and circadian rhythm promoting wakefulness. Results were categorized into four reaction time types: false starts (response within 150ms after stimulus was shown), alert responses (between 150ms-500ms after stimulus was shown), lapses (about 500ms-30s), and sleep attacks (failure to respond past 30s). Approaching 18 hours, TSD subjects exhibited a gradual decrease in performance, as observed through a PVT task; NAP subjects showed baseline performance. Lapses showed a delay in optimal response time, while sleep attacks showed no sufficient response within the optimal range; both…

Related Documents