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Inability to produce a smooth flow of speech sounds in connected discourse; the flow of speech is characterized by frequent interruptions and repetitions. See: stuttering.
[dis- + fluency]


Speech that exhibits deviations in continuity, fluidity, ease of rate and effort, with hesitations or repetition of sounds, words, or phrases; lack of skillfulness in speech. Disfluency is normal in pre-school language development. In later years, it can be due to congenital conditions such as Down’s syndrome, or acquired—either early, as in stuttering, or late, as may occur in Parkinson’s disease.


, disfluency (dis-flū'ĕn-sē)
Speech interrupted in its forward flow by hesitations, repetitions, or prolongations of sounds; common manifestation of a stuttering disorder, which is also present in normal speech, particularly during speech development in young children.
See: stuttering
Synonym(s): nonfluency.


An interruption in speech flow.
Mentioned in: Stuttering
References in periodicals archive ?
29) shows mean duration (ms) of disfluency pauses, pauses within words, and standard pauses respectively.
Of the pause types, there were 68 disfluency pauses, 29 instances of within-word pauses, and 492 "standard" pauses, i.
LOUIS, E; WINFIELD, L; FAHN, S & FORD, B 2001: Speech disfluency exacerbated by levodopa in Parkinson's disease.
Yet, many SLPs are reluctant to make referrals to social workers or counselors because of a belief that mental health professionals are generally uninformed about disfluency (Luterman, 1996).
The type and frequency of disfluency are different for every individual and can vary at various times of life.
Helpful approaches include talking to the child's classmates to lessen their fear and misunderstandings about stuttering, helping the teacher find ways for the student to be more comfortable participating in class, and sharing appropriate methods to interact with the child to show acceptance of the disfluency as one aspect of personal identity while promoting positive relationships with others (Gregory, 1997).
The self-perception of an individual who stutters is thought to be a critical influence in the perpetuation of a cycle that either maintains disfluency or promotes greater facility in speaking (Harrison, 1993).
Some people who stutter are so adept at the use of avoidance that they rarely, if ever, exhibit any disfluency (Wexler, 1996).
The disfluency itself may be predicated, at least in part, by the anticipation of it.
L&H Voice Xpress version 5 is the first speech recognition product to offer disfluency filter technology which eliminates the "ahh" and "umm" sounds that frequently cause errors among speech recognition users.