Masks can put cognitive performance in check | 面具可以控制认知能力

中文版谷歌中文翻譯(90% 準確率) | English translation
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Editor’s note:  Wearing a mask can help prevent the spreading of saliva which can carry viruses and bacteria from one person to another.  So it can reduce the risk of a person contracting a viral infection from a person who wears a mask.  The downsize of mask-wearing is that it restrict the oxygen flow.
编者按:戴口罩有助于防止唾液,唾液可将病毒和细菌从一个人传染给另一个人。 因此它可以降低一个人被戴口罩的人感染病毒的风险。 戴口罩的缺点是限制了氧气的流动。
News Release

Wearing a face mask can temporarily disrupt decision-making in some situations according to University of Queensland research

Peer-Reviewed Publication

University of Queensland

Wearing a face mask can temporarily disrupt decision-making in some situations according to University of Queensland research.

Dr David Smerdon from UQ’s School of Economics analysed almost three million chess moves played by more than eight thousand people in 18 countries before and during the COVID-19 pandemic and found wearing a mask substantially reduced the average quality of player decisions.

“The decrease in performance was due to the annoyance caused by the masks rather than a physiological mechanism, but people adapted to the distraction over time,” Dr Smerdon said.

“The data showed masks were more likely to decrease performance in situations where there was a demanding mental task with a high working memory load.

“This is something to keep in mind for occupations in the STEM fields of science, technology, engineering and mathematics as well as other professions that demand a high level of working memory such as language interpreters, performers, waiters and teachers.”

Dr Smerdon, an Australian chess Grandmaster, said while mask mandates had helped to curb the spread of COVID-19, almost nothing was known about their impact on cognitive performance.

“At the moment there are no large studies on the impact of mask wearing on the general population,” he said.

“Chess can provide us with that insight as it requires calculation, memory, problem-solving and pattern recognition and has been used extensively in psychology, neuroscience and economics to measure changes in cognitive performance.”

Dr Smerdon’s study found that while mask wearing had a negative impact on chess performance, the effect subsided after four to six hours of playing.

“The results suggest that the effect of masks may depend on the type of task, the duration of the task and working memory load,” he said.

Dr Smerdon said understanding the impact of mask wearing on decision-making could help individuals and organisations better evaluate when and how to use them.

“For example, education policy makers may need to bear in mind the disruptive effects of masks when designing exam conditions to address concerns about student health and fairness,” he said.

The study has been published in PNAS.

Media: Dr David Smerdon, [email protected], +61 7 334 67047, +61 (0)490 874 970; Caroline Enright, [email protected] or +61 (0)430 007 435.

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