Objective To investigate the presence of theory of mind( To M) obstacle in patients with stable severe chronic obstructive pulmonary disease( COPD). Methods A series of tests——mimi-mental state examination,Hamilton anxiety scale,Hamilton rating scale for depression,Gaffes perceive and eye area basic emotion recognition test had been conducted on 40 cases of severe stable COPD patients( COPD group) and 29 cases of healthy check-up persons who were of the same age and educational level( control group),and a c...