{"id":1880062,"date":"2018-10-03T14:42:12","date_gmt":"2018-10-03T18:42:12","guid":{"rendered":"https:\/\/www.futurity.org\/?p=1880062"},"modified":"2018-10-03T14:42:12","modified_gmt":"2018-10-03T18:42:12","slug":"sleep-deprivation-task-completion-1880062","status":"publish","type":"post","link":"https:\/\/www.futurity.org\/sleep-deprivation-task-completion-1880062\/","title":{"rendered":"For the sleep-deprived, small distractions can have dire results"},"content":{"rendered":"

Small distractions can have serious consequences for people deprived of sleep, according to the largest experimentally controlled study on sleep deprivation to date.<\/p>\n

The findings reveal just how detrimental operating without sleep can be in a range of situations, from bakers adding too much salt to cookies to surgeons botching surgeries.<\/p>\n

While sleep deprivation research isn’t new, the level at which distractions hinder sleep-deprived persons’ memories and challenge them from successfully completing tasks was not clear until researchers quantified the impact.<\/p>\n

“If you look at mistakes and accidents in surgery, public transportation, and even operating nuclear power plants, lack of sleep is one of the primary reasons for human error,” says study coauthor Kimberly Fenn, an associate professor of psychology at Michigan State University. “There are many people in critical professions who are sleep-deprived. Research has found that nearly one-quarter of the people with procedure-heavy jobs have fallen asleep on the job.”<\/p>\n

From missteps to catastrophes<\/h3>\n

The research,\u00a0which appears in the\u00a0Journal of Experimental Psychology: General<\/em><\/a>, is unlike previous studies because of its focus on sleep deprivation’s impact on completing tasks. These tasks, Fenn explains, involve following directions and include multiple steps.<\/p>\n

Some basic errors, such as adding salt twice to a recipe, might not be so serious. However, some of the world’s greatest human-caused catastrophes\u2014like Chernobyl, the Exxon Valdez oil spill, and the Challenger explosion\u2014along with daily train and car accidents have sleep deprivation at least partially to blame, she says.<\/p>\n

Fenn hopes the findings will shed light on how critical sleep is to completing any task, be it large or small.<\/p>\n

“Every day, approximately 11 sponges are left inside of patients who have undergone surgery. That’s 4,000 potentially dire missteps each year and an example of a procedural task gone terribly wrong that can result from sleep deprivation,” Fenn says. “Our research suggests that sleep-deprived people shouldn’t perform tasks in which they are interrupted\u2014or, only perform them for short periods.”<\/p>\n

‘Stark jump in errors’<\/h3>\n

To test sleep deprivation’s impact on how people follow steps in a task, the team brought 234 people into the sleep lab at 10 p.m. That night, all of the participants worked on a sequence-based procedure that involved following a series of tasks in order.<\/p>\n

Periodically, participants were interrupted and had to remember where they were in the procedure before picking up again. At midnight, half of the participants went home to sleep while the other half stayed awake all night at the lab. The next morning, everyone completed the procedure once again.<\/p>\n

What the researchers found was a stark jump in errors for those who were sleep-deprived. “All participants met performance criteria in the evening, but roughly 15 percent of participants in the sleep-deprived group failed in the morning, compared to 1 percent of those who slept,” Fenn says.<\/p>\n

“Furthermore, sleep-deprived participants not only showed more errors than those who slept but also showed a progressive increase in errors associated with memory as they performed the task\u2014an effect not observed in those who slept,” she says. “This shows that the sleep-deprived group experienced a great deal of difficulty remembering where they were in the sequence during interruptions.”<\/p>\n

Putting others at risk?<\/h3>\n

Memory maintenance, the research found, was the real culprit keeping the sleep-deprived from completing tasks successfully. With hindered memory maintenance, it’s much more difficult to pick up a task where you left off without missteps, Fenn explains.<\/p>\n

Fenn also explains that distractions we face every day\u2014whether receiving a text message or simply answering a question\u2014are unavoidable but especially harmful to sleep-deprived people.<\/p>\n

“Operating with reduced cognitive capacity has wide-ranging effects,” Fenn says. “Students may pull all-nighters and not retain information for their exams. More worrisome, individuals working critical jobs may put themselves and other members of society at risk because of sleep deprivation. It simply cannot be overlooked.”<\/p>\n

The United States Office of Naval Research funded the research.<\/p>\n

Source: Michigan State University<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

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