Pathognomy is the study of passions and emotions. It refers to the expression of emotions indicated by the voice, gestures and facial expression. While physiognomy is used to predict the overall, long-term character of an individual, pathognomy is used to ascertain clues about one's current character. Physiognomy is based on shapes of the features, and pathognomy on the motions of the features.
pathognomy in Persian: حسخوانی