Biomaterial Database

Speech shadowing characteristics of stutterers under diotic and dichotic conditions. 1987

E C Healey, and S W Howe

Barkley Center, Department of Special Education and Communication Disorders, University of Nebraska, Lincoln 68583-0731.

The purpose of this study was to compare adult stutterers' and adult nonstutterers' fluent speech patterns produced during one nonshadowed reading and two speech shadowing conditions. Subjects' speech error rates, shadowing strategies, and fluent speech segment durations were obtained during baseline, diotic speech shadowing, and dichotic speech shadowing conditions. Results indicated that stutterers produced fewer speech production errors (i.e., omissions, substitutions, and insertions) than nonstutterers during each shadowing condition. Stutterers also favored the use of a word-by-word speech shadowing strategy, while nonstutterers utilized both word-by-word and small phrase shadowing strategies. Finally, stutterers exhibited significantly longer vowel and phrase durations than nonstutterers during the shadowing conditions.

UI	MeSH Term	Description	Entries
D007100	Imitative Behavior	The mimicking of the behavior of one individual by another.	Behavior, Imitative,Behaviors, Imitative,Imitative Behaviors
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010699	Phonation	The process of producing vocal sounds by means of VOCAL CORDS vibrating in an expiratory blast of air.	Phonations
D004007	Dichotic Listening Tests	Tests for central hearing disorders based on the competing message technique (binaural separation).	Dichotic Listening Test,Listening Test, Dichotic,Listening Tests, Dichotic,Test, Dichotic Listening,Tests, Dichotic Listening
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D013060	Speech	Communication through a system of conventional vocal symbols.	Public Speaking,Speaking, Public
D013061	Speech Acoustics	The acoustic aspects of speech in terms of frequency, intensity, and time.	Acoustics, Speech,Acoustic, Speech,Speech Acoustic
D013342	Stuttering	A disturbance in the normal fluency and time patterning of speech that is inappropriate for the individual's age. This disturbance is characterized by frequent repetitions or prolongations of sounds or syllables. Various other types of speech dysfluencies may also be involved including interjections, broken words, audible or silent blocking, circumlocutions, words produced with an excess of physical tension, and monosyllabic whole word repetitions. Stuttering may occur as a developmental condition in childhood or as an acquired disorder which may be associated with BRAIN INFARCTIONS and other BRAIN DISEASES. (From DSM-IV, 1994)	Stammering,Stuttering, Acquired,Stuttering, Adult,Stuttering, Childhood,Stuttering, Developmental,Stuttering, Familial Persistent 1,Acquired Stuttering,Adult Stuttering,Childhood Stuttering,Developmental Stuttering