When we hear of atrocious and horrific crimes, we may associate the perpetrators with “Psychopaths” in Lenovo. The diagnosis of mental illness is usually assessed using a psychopathology scale, but now researchers have come up with a simpler way of looking at the eyes, in particular, the pupil size was measured to determine the subject’s mental state. Unlike most people, the pupils of psychopaths rarely dilate when confronted with disturbing or threatening images.
According to the light needs of the human body, the pupil usually encounter strong light contraction, expansion in the dark environment. Changes in pupil size have also been linked to a person’s mental state, scientists have found. At one point, Eckhardt Hess, a psychologist, was staring at eye-catching pictures in a magazine when his wife told him that his pupils were visibly dilated. Inspired by this, Hess carried out further research, showing his subjects photographs of landscapes and then of “Attractive men and women”, the latter causes the subject’s pupils to dilate significantly-when we meet the“Object of interest”, our eyes will be honest to pass on the favor.
Interestingly, this behavioral reflex is“Bidirectional”-People’s pupils dilate when they meet someone they’re attracted to, and larger pupils make a person seem more attractive. Psychologists call this behavior“Reciprocal attraction,” in which the other person perceives and responds positively when the other person’s pupils dilate to convey affection. The above research laid the foundation of“Pupillary response psychology”-interpreting the observed subject’s mental state through pupil changes. Now, scientists have shown that dilated pupils can reflect a person’s positive mood swings, expectations of rewards and positive feedback.
“The eyes are the window of the soul”, even the tiny pupil changes, but also a person’s inner world of the real map. Because of this, people always look into each other’s eyes when they are talking, and feel the feelings they are sending to each other while passing on the language information. By Cui Xun