There is no scientific evidence to support the claim that the iris of a psychopath's eyes changes color during fits of extreme emotion, such as anger or rage. Changes in eye color based on emotions are not a documented or recognized phenomenon in the field of psychology or medicine.
The color of a person's eyes is primarily determined by the amount and distribution of melanin, a pigment in the iris. While emotions can influence certain physiological responses, such as increased heart rate, sweating, or facial expressions, there is no known connection between emotions and changes in eye color.
It's essential to be cautious about believing or spreading unsubstantiated claims about specific behaviors or characteristics of psychopathy or any other mental health condition. Psychopathy is a complex personality disorder that requires a formal diagnosis by a qualified mental health professional based on specific criteria outlined in the Diagnostic and Statistical Manual of Mental Disorders (DSM) or the International Classification of Diseases (ICD).
If you have concerns about mental health or emotions, it's best to consult with a mental health professional who can provide accurate information and support based on scientific evidence and clinical expertise.