How the Eyes Reveal Our Thoughts

When entering a room, we make extensive saccades, looking around. Also, the eyes move involuntarily when we walk to compensate for movement of the head and stabilizing our sight.

The studies show that dilation of pupil is related to the degree of uncertainty in the process of decision-making: if a person is not sure of the decision, he/she feels increased anxiety, so that pupils dilate. You can even try to predict the decision. One group of researchers found that watching dilated pupils can show when a person used to say "no" is trying to make the difficult decision to say "yes".

Also, the eyes can tell what number you think of. Lotsher Tobias and his Zurich colleagues have selected volunteers to monitor the movements of their eyes, asking to call 40 numbers randomly. They saw that the direction and size of the pupils of participants accurately show whether the next number will be smaller or bigger from the previous one. The eyes moved up and right before calling bigger numbers and down to the left before calling smaller numbers. The greater the movement, the greater the difference between the numbers was.

Swedish researchers in 2013 published evidence that the eye movements can affect memory. The study, conducted with the participation of students, showed that if people abstract themselves from the object and quickly scan the surroundings, they coped with the tasks on memorization more qualitative. Perhaps this is because the eye movements help us to remember dimensional relationships between objects in the environment that existed at the time of information coding.

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