Monday, January 6, 2020
Research On Vigilance And Sustained Attention - 2549 Words
Introduction: Studies on vigilance and sustained attention have been a widely studied part of psychology since the Second World War. This is because it was found that people monitoring radars for enemy ships experienced what is now known as vigilance decrement. That is when the ability of a subject to detect an abnormality during a task which primarily displays a ââ¬Å"normalâ⬠screen. In the case of WWII radar monitors, this was to detect when an enemy submarine entered the radar. (Helton, W. S. Russell, P. N. (2012). ) After a short time, typically 20-30 minutes but in certain cases as little as 5 minutes, vigilance decrement can occur. (Caggio, D. M., Parasuraman, R. (2004)). There are two main theories commonly cited to explain this phenomenon, mindless theory and resource theory. Resource theory says that the vigilance decrement is due to the exhaustion of brain resources required to maintain focus on the task. Mindless theory simply explains vigilance depletion as being caused by dis engagement from the task due to boredom. (Helton, W. S. Russell, P. N. (2012).) The two theories explain the same phenomenon much differently; resource theory says itââ¬â¢s caused in part by cognitive overload, while mindless theory suggests itââ¬â¢s caused by cognitive under-load causing boredom. (Helton, W. S., Russell, P. N. (2015)). Resource theory is strongly supported by a wide array of evidence from behavioural studies, mental workload studies, and brain imaging studies. When theShow MoreRelatedReducing Vigilance Decrement During Vigilance Tasks3331 Words à |à 14 Pagesreduce vigilance decrement during vigilance tasks, a thorough understanding of it is needed. This study explores whether vigilance decrement can be explained by the resource theory or the mindlessness theory. The performance of 464 participants during a laboratory conducted dot location vigilance task lasting for twelve minutes. 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