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Your eyes may signal Your mental stress level, reveals study

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Your eyes may signal Your mental stress level, reveals study.

With demands of work productivity shooting up stress levels, researchers have discovered that a person’s eyes may offer a solution.

The study showed that the pupil dilation — widening of the pupils of the eyes — could be used to indicate levels of stress of a person in a multitasking environment.

“Many people multitask but currently there is no measurement for someone’smental well-being. However, we found that the size of a pupil could be the key tomeasuring someone’s mental state while
they multitask,” said Jung Hyup Kim, As- sistant Professor from the University of Missouri in the US.

To understand how everyone experi ences stress differently, the researchers used a simulated oil and gas refinery plant control room where they watched, through the motion-capture and eye- tracking technology, as the participants reacted to unexpected changes, such as alarms.

During the scenario’s simple tasks, the participants’ eye searching behaviours were more predictable.

Yet, as the tasks became more complex and unexpected changes occurred, their eye behaviour became more erratic, the findings revealed.
The team hopes this finding, published in the International Journal of Human-
Computer Interaction, can give a better insight into how sys-tems should be designed to avoid mentally overloading workers and build a
safer working environment.

“One day this finding could give employers and educatorsalike a tool to determine the maximum
stress level a person can experience before they become fatigued,and their performance begins to negatively change,” the study said.

Further, the researchers plan to apply this findingto further research involving different age
groups and certain biometric measuressuch as heartbeat, brain signals and muscle or nerve reactions.

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