 A disorder presenting similar symptoms is simultagnosia or Balint’s syndrome (Balint was an early 20th century German neurologist). In this disorder, patients see only one object located at one ‘place’ in the visual field at a time. Outside of a few degrees of arc in the visual field, these patients say they see nothing but an “undifferentiated mess” and seem to be receiving no information about objects (Hardcastle 1997: 62). 