i learned a new word last week. palilalia is the repetition or echoing of one's own spoken words, and may sound like stuttering. palilalia is associated with tourette's syndrome, asperger's syndrome, and autism. it is a complex neurological tic. i have identified myself as a stutterer since i was given that label as a second grade public school student. my stuttering manifests as the rapid repetition of an initial syllable, usually with increasing volume and frequency. my stuttering more nearly fits the description of palilalia rather than the blocking and prolongations most commonly associated with stuttering.
paliphrasia is a synonym of palilalia, with the added nuance that it is the repetition of complete phrases, rather than syllables. when i was a child, i would often repeat things i had just said in a whisper under my breath. i still do that from time to time, but not nearly as often as i once did.
palilalia and paliphrasia are both associated with asperger's syndrome. the plot thickens.