Ear differences and delayed auditory feedback: Effect on a simple verbal repetition task and a nonverbal tapping test.

1973 ◽  
Vol 101 (2) ◽  
pp. 269-272 ◽  
Author(s):  
L. D. Roberts ◽  
A. H. Gregory
Keyword(s):  
Auditory Feedback ◽  
Feedback Effect ◽  
Delayed Auditory Feedback ◽  
Verbal Repetition ◽  
Repetition Task

The Effects of Delayed Auditory Feedback on a Speech-Related Task in Stutterers

1970 ◽  
Vol 13 (2) ◽  
pp. 245-253 ◽  
Author(s):  
Rachel E. Stark ◽  
Bruce R. Pierce
Keyword(s):  
Auditory Feedback ◽  
Bone Conduction ◽  
Normal Hearing ◽  
Mechanical Device ◽  
Sensation Level ◽  
Delayed Auditory Feedback ◽  
Closure Duration ◽  
Syllable Repetition ◽  
Repetition Task ◽  
Air Conduction

Fifteen adult stutterers and 15 matched nonstutterers who presented normal hearing and normal psychiatric and neurological histories were studied. Their responses were compared on a patterned syllable-repetition task under various auditory feedback conditions. The feedback signals were clicks activated by an electro-mechanical device at the time of lip closure. They were either synchronous (SAF) or delayed (DAF) or a combination (SAF/DAF). SAF was presented by bone conduction at a 40-dB sensation level, DAF by binaural air conduction with a delay of 140 or 200 msec, at sensation levels of 0, 10, 20, and 30 dB in DAF alone and at sensation levels of 40, 50, 60, and 70 dB in the SAF/DAF combination. Performances were evaluated in terms of pattern duration, lip-closure duration, and number of pattern errors. Stutterers and nonstutterers responded similarly to the feedback conditions. The following three differences were found: (1) during SAF alone, stutterers showed greater duration of lip closure than nonstutterers; (2) there were non-systematic differences between stutterers and nonstutterers in duration of lip closure during DAF and SAF/DAF conditions; and (3) with increased intensity of DAF, stutterers showed a greater increase in number of pattern errors than nonstutterers.

Delayed Auditory Feedback with Children

1980 ◽  
Vol 23 (4) ◽  
pp. 802-813 ◽  
Author(s):  
Gerald M. Siegel ◽  
Christine A. Fehst ◽  
Sharon R. Garber ◽  
Herbert L. Pick
Keyword(s):  
Delay Interval ◽  
Auditory Feedback ◽  
Developmental Pattern ◽  
Current Experiment ◽  
Older Children ◽  
Delayed Auditory Feedback ◽  
Sentence Repetition ◽  
Weak Evidence ◽  
Age Patterns ◽  
Repetition Task

There is a controversy in the literature concerning the effects of delayed auditory feedback (DAF) on the speech of subjects of varying ages, In the current experiment the subjects were five-year-olds, eight-year-olds and adult speakers who performed a sentence repetition task under: 0-delay, 250, 375, 500, and 625 msec of amplified delayed auditory feedback. All subjects performed the task under normal rate instructions and under instructions to speak as rapidly as possible. A developmental pattern emerged, with the youngest children significantly more affected by the DAF than the older children or the adults. There was only weak evidence for a critical delay interval that varied according to age of the subjects. Rate instructions had essentially no effect on the DAF or age patterns.

scholarly journals Delayed auditory feedback effect on melody recitation.

1985 ◽  
Vol 56 (4) ◽  
pp. 229-232
Author(s):  
Teruyo Fukawa ◽  
Shigeru Yoshida
Keyword(s):  
Auditory Feedback ◽  
Feedback Effect ◽  
Delayed Auditory Feedback

Delayed Auditory Feedback with Different Delay Times at Each Ear

1964 ◽  
Vol 7 (4) ◽  
pp. 369-371
Author(s):  
Samuel Fillenbaum
Keyword(s):  
Delay Interval ◽  
Auditory Feedback ◽  
Normal Subjects ◽  
Delayed Auditory Feedback ◽  
Delay Times

Binaurally asynchronous delayed auditory feedback (DAF) was compared with synchronous DAF in 80 normal subjects. Asynchronous DAF (0.10 sec difference) did not yield results different from those obtained under synchronous DAF with a 0.20 sec delay interval, an interval characteristically resulting in maximum disruptions in speech.

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