A specific inability to appreciate other people's mental states. The term was first used in its modern sense in 1990 by the British psychologist Simon Baron-Cohen (born 1958), although the German physiologist Hermann Munk (1839–1912) introduced it (in the German form Seelenblindheit) in an article in the Archiv für Anatomie und Physiologie in 1878 to denote a loss of ability to grasp the meaning of visual stimuli without loss of the ability to see. Munk had observed this condition in a dog with a limited lesion in the occipital cortex. See theory of mind. mind-blind adj.