<unk>  must be differentiated from other complex tic disorders (such as echolalia), stuttering, and logoclonia. In contrast to stuttering or logoclonia,<unk>  repetitions tend to consist of complete sections of words or phrases, are often repeated many times, and the speaker has no difficulty initiating speech.
Palilalia
Echolalia
Tachylalia
Coprolalia
Tourettism
Selective mutism
Akinetic mutism
Taurodontism