<unk>  or tachylogia is extremely rapid speech.<unk>  by itself is not considered a speech disorder.<unk>  occurs in many clutterers and many people who have speech disorders.<unk>  is a generic term for speaking fast, and does not need to coincide with other speech problems.<unk>  may be exhibited as a single stream of rapid speech without prosody, and can be delivered quietly or mumbled.<unk>  can be simulated by stimulating the brain electronically.
Tachylalia
Palilalia
Echolalia
Coprolalia
Acrodynia
Hypophonia
Compulsive hoarding
Hemiballismus