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Tachylalia or tachylogia[1] is extremely rapid speech.[2] Tachylalia by itself is not considered a speech disorder. Tachylalia occurs in many clutterers and many people who have speech disorders.

Tachylalia is a generic term for speaking fast, and does not need to coincide with other speech problems.

Tachylalia may be exhibited as a single stream of rapid speech without prosody, and can be delivered quietly or mumbled. Tachylalia can be simulated by stimulating the brain electronically.[3]


Tachylalia can occur with the following:


  1. ^ Tachylalia
  2. ^ Tachylalia
  3. ^ BÉRUBÉ, Louise. Terminologie de neuropsychologie et de neurologie du comportement, Montréal, Les Éditions de la Chenelière Inc.,1991, 176 p., p.58.
  4. ^ Tachylalia: clinical and acoustic study of 149 subjects