Physiological Measurement: Pupillary Response

A lot of poetic and philosophical statements exist about the eyes, such as the eye represents the “window to the soul.” Literature on romance and relationships often indicate a desire for persons to look into the eyes of the other, as if such an examination would provide clarity or meaning. Clearly, the reactions that take place in the eyes of a person constitute a visible reaction that someone can observe. Much as with any observed reaction, the research focuses on how to draw meaning from these observations. What does any change or reaction on the part of the elements of the eye, particularly the pupil, indicate about the person’s mental state? Both observing the reaction and then correctly drawing a conclusion about what ...