Abstract
We classified the symptoms of repetitive speech, including palilalia, echolalia, recurring utterance, and “stehende Redensarten” from a symptomatological point of view. The broader concept of repetitive verbal behaviour was re-examined, with special reference to the phenomenon of monosyllabic iteration. A case of Alzheimer's disease presenting marked logoclonia (reiterative utterance of final parts of words) is described, and factors of aetiological significance are proposed for this disturbance, which is often found in patients with primary degenarative dementia. The roles that disturbed lexical and preserved phonemic functions can be shown to play in logoclonia are discussed.