Posttraumatic vocal disarticulation

From Halopedia, the Halo wiki

Posttraumatic vocal disarticulation is a psychological condition involving a human being's ability to speak. After experiencing extreme stress or trauma, a person diagnosed with this condition is rendered completely unable to speak, even if there is no physical injury to their vocal chords.[1][2] After extended periods of silence an individual suffering from posttraumatic vocal disarticulation may experience significant difficulty speaking coherently even if they overcome the condition on a psychological level.[3]

Spartan-III supersoldier Lucy-B091 was diagnosed with this condition at age 12 after her company was killed in Operation: TORPEDO, leaving her and Tom-B292 as the only survivors out of 300. This shook her terribly and she would remain silent for years afterward.[1] Lucy later overcame the condition as a result of an intense fit of rage, restoring her ability to speak, though she would remain relatively quiet.[4]

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  1. ^ a b Halo: Ghost of Onyx, page 27
  2. ^ Halo: Glasslands, pages 144-145
  3. ^ Halo: Glasslands, page 329
  4. ^ Halo: Last Light, page 330 (Google Play edition)