the eyes are not the reflection of the soul

For science, the eyes are not the reflection of the soul but that of the brain and emotions. Here is what unveils a look...

Let us say first of all that read in the eyes of someone, it is read in his pupil. Because all the elements of the eye are impassive, apart from the black pupil, who is contracting or expands, thus amending the gaze.

That expresses this movement? To begin, the intensity of the light that enters the eye, since it is the Pupil which regulates this stream; but also our emotions - and even the state of our brain!

Brain side, coté, emotions

the evidence: after a shock to the head, physicians assess the neurological integrity by flashing a light in front of the eyes of the patient. In effect, this reflex solicits the pupil, the retina, the oculomotor nerve and brain areas visual. Exposed to the light, the pupil must thus react by a constriction.

Side emotions, fear, pain or even the desire is reflected by an increase in the diameter of the pupil. As well, the pain activates the sympathetic nervous system resulting in the contraction of the dilator muscle of the Iris: the diameter of the pupil then increases of approximately 0.2 mm.

Conversely, the anger or disgust stimulate the parasympathetic nervous system which induces the contraction of the constrictor muscle of the iris and shrinks the pupil!