What is the effect of lack of sleep on concentration?
It is known that
Poor sleep linked to inability to focus – new study
https://theconversation.com/poor-sleep-linked-to-inability-to-focus-new-study-160399
In recent years, numerous scientific studies have been conducted on the relationship between sleep deprivation and health, and sleep deprivation not only increases the risk of heart disease, stroke , and diabetes, but also worsens mental health and further reduces the immune system. Research results have been reported that it is related to. However, on the other hand, it seems that only a few scientific studies have been conducted on the effect of sleep deprivation on cognitive function, and Robertson et al. Decided to conduct their own research.
An experiment conducted by Robertson et al. Compared the concentration of 23 subjects diagnosed with chronic insomnia with 23 subjects without sleep disorders. Subjects in both groups were asked to take an 'attention test' in the evening of the next day after spending the night in a laboratory where they could check their sleep status at any time to measure their concentration.
The 'attention test' conducted in this survey is to have the letters 'X' react to the letters arranged in a circle as shown in the picture below. In this test, in order to disturb the subject's concentration, there are two mechanisms, 'display alphabets other than X at random' and 'display alphabets other than the place to choose', 'beginner' and 'intermediate'. There were three levels of difficulty: 'advanced'.
As a result, it was found that subjects with chronic insomnia had difficulty concentrating on their work and ignoring the dummy alphabet compared to subjects without sleep disorders who were confirmed to have slept well the day before. .. In addition, it was found that subjects with the most severe insomnia were unable to concentrate on tasks or ignore the dummy alphabet.
Just as everyone has the experience of 'focusing on TV and missing smartphone notifications,' human cognitive functions 'ignore distracting auditory and visual information when focused.' There is a mechanism called 'to do'. According to an experiment conducted by Robertson et al., It was confirmed that the same cognitive mechanism was functioning normally in insomniac subjects, but there was a strong tendency for distraction. From this, Robertson et al. Interpret that 'the brain function responsible for deciding which elements in the environment should be focused on may be affected.'
Robertson et al. Cited a 2018 study that subjects who had completely cured insomnia 'subjectively improved their performance only slightly,' and what treatment of insomnia could focus on. He pointed out that objective measurement is necessary to know whether it will affect. In any case, he said it was important to be aware that lack of sleep could affect performance at work and while driving, and to go to bed at the right time.
In addition, Japan's Ministry of Land, Infrastructure, Transport and Tourism issued a statement to automobile carriers in 2018 that 'sleep deprivation will be added as a reason that crew members should not be on board, etc.' We are trying to make everyone aware of the fact.
We will strengthen measures to prevent accidents caused by lack of sleep! !! ｜ Comprehensive automobile safety information
https://www.mlit.go.jp/jidosha/anzen/03sleep/index.html
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in Science, Posted by darkhorse_log