stupor

Stupor is the lack of critical mental function and a level of consciousness wherein an affected person is almost entirely unresponsive and only responds to intense stimuli such as pain. The word derives from the Latin stupor ('numbness, insensibility').

Stupor is characterised by impaired reaction to external stimuli. Those in a stuporous state are rigid, mute and only appear to be conscious, as the eyes are open and follow surrounding objects. If not stimulated externally, a patient with stupor ...