| Term | Definition |
| expert def of fluency | types: interjections, repetitions, revisions, broken words, prolonged words. |
| ASHA def of flueny | a "speech d/o" characterized by deviations in continuity, smoothness, rhythm, and effort. |
| Hasbrouck's def of flueny | fluency, stuttering, and disfluency |
| fluency | normal, flowing speech production |
| stuttering | struggle and tension in the production of a sound in a word |
| disfluency | any non-struggle disruption of normal speech fluency. |
| Who stutters? | 1% of population. 4:1 male-female |
| Why do people stutter? | cerebral dominance, genetic transmission, neurological dysfunction |
| neurological dysfunction | PET says left speech are deactivated; right frontal-parietal, right temporal-insula are activated |
| traditional approach | says stuttering related to anxiety, tx is to reduce anxiety and increase stutter |
| behavioral approach | says stuttering is a learned behavior, tx is to replace stutter with normal speech fluency |