Speech or Voice, What’s the Difference?
Mr. Heim Stillear story — post-stroke dysarthria. “Speech line” concept: above the Adam’s apple = speech modification (resonance and interruptions); below = sound production. Dysarthria = neurologic problem above the speech line. Discusses how slurred speech creates false perception of diminished intelligence. Distinguishes voice problems (below the line: larynx) from speech problems (above the line: tongue, palate, lips).
Migration note: Part I “What is Voice?” or “Voice and Speech” page content.