Delayed Auditory Feedback and the Speech of Stuttering and Non-Stuttering Children

1978 ◽  
Vol 46 (2) ◽  
pp. 551-555 ◽  
Author(s):  
Beverly A. Timmons ◽  
James P. Boudreau
Keyword(s):  
Analysis Of Variance ◽  
Auditory Feedback ◽  
Feedback Condition ◽  
Speaking Rate ◽  
Delayed Auditory Feedback ◽  
Difference Scores ◽  
Delay Times ◽  
Speaking Task

25 male stutterers and 25 male non-stutterers matched by age and speaking task, read or recited under normal and 113-, 226-, 306-, 413-, 520-msec. delayed auditory feedback conditions. Changes in speaking rate and disfluency count from normal to each delayed auditory feedback condition were calculated as indicators of reaction to delayed auditory feedback. Using an analysis of variance of difference scores for speaking rate, no significant differences were found between stutterers and non-stutterers or among the delays. An analysis of variance of disfluency difference scores showed no differences between stutterers and non-stutterers. Significant differences in disfluency reaction among delay times were found.

Age, Sex, and Delay Time as Factors Affecting Reaction to Delayed Auditory Feedback

1976 ◽  
Vol 43 (1) ◽  
pp. 27-30 ◽  
Author(s):  
Beverly A. Timmons ◽  
James P. Boudreau
Keyword(s):  
Sex Differences ◽  
Auditory Feedback ◽  
Delay Time ◽  
Feedback Condition ◽  
Speaking Rate ◽  
Delayed Auditory Feedback ◽  
Factors Affecting ◽  
Nursery Rhyme ◽  
Older Subjects ◽  
Post Hoc

Five groups of 10 males and 10 females each, aged 5, 7, 9, 11, and 13 yr., recited a nursery rhyme under normal delay and 113-, 226-, 306-, 403-, and 520-msec delayed auditory-feedback conditions. Speaking rate and disfluency count changes from normal delay to each delayed auditory feedback condition were calculated as indicators of reaction to delayed auditory feedback. Analyses of variance and post hoc comparisons indicated that 5-yr.-olds reacted with greater change in rate at 520-msec. delayed auditory feedback than did older subjects. Five- and 7-yr.-olds were more disfluent at 413- and 520-msec. delayed auditory feedback than were older subjects. Sex differences were found in the 7-, 11-, and 13-yr.-old groups, using speaking rate as a measure of delayed auditory-feedback reaction. No significant sex differences were noted when disfluencies were used as indicators of delayed auditory-feedback reaction.

Speech Disfluencies under Normal and Delayed Auditory Feedback Conditions

1983 ◽  
Vol 56 (2) ◽  
pp. 575-579 ◽  
Author(s):  
Beverly A. Timmons
Keyword(s):  
Analysis Of Variance ◽  
Auditory Feedback ◽  
Repeated Measures ◽  
Original Sample ◽  
Delayed Auditory Feedback ◽  
Pearson Product Moment Correlation ◽  
Delay Times ◽  
Main Effects

20 male and 20 female adults, matched by age, read under conditions of normal and 113-, 152-, 200-, 253-, 307-, and 347-msec. delayed auditory feedback. Disfluency counts were correlated with delayed auditory feedback reactions which were changes in disfluencies under delay conditions. Pearson product-moment and Spearman's rhos were negative and significant for delay times of 113, 153, 200, and 253 msec. The Pearson product-moment correlation for 307 msec, was also negative and significant. Two groups of 11 adults were selected from the original sample on the basis of high and low initial disfluency counts. Their reactions to delayed auditory feedback were compared, using a 2-way analysis of variance with repeated measures (groups × delay times). Both main effects were significant but not their interaction.

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.

Speech Monitoring and Verbal Learning

1963 ◽  
Vol 6 (3) ◽  
pp. 249-254
Author(s):  
George R. Davis ◽  
Joseph G. Sheehan
Keyword(s):  
Auditory Feedback ◽  
Direct Relationship ◽  
Paired Associate ◽  
Verbal Learning ◽  
Feedback Condition ◽  
Delayed Auditory Feedback ◽  
Learning Tasks ◽  
Verbal Tasks ◽  
Speech Monitoring ◽  
Auditory Monitoring

The effects of interference with auditory feedback on two verbal learning tasks were studied. Twenty-seven adults without speech or hearing handicaps practiced two verbal tasks (reading comprehension and paired associate) under three auditory monitoring conditions. A synchronous auditory feedback condition provided amplified but almost simultaneous auditory feedback. To provide an irrelevant feedback condition, S’s heard their own previously recorded voices reading other material. Delayed auditory feedback provided a second experimental condition. Results confirmed that delayed auditory feedback interfered significantly with efficient verbal learning. A clear and direct relationship between the amount and relevance of verbal feedback and the efficiency of speech-based learning was demonstrated.

Speech Disfluencies and Delayed Auditory Feedback Reactions of Stuttering and Non-Stuttering Children

1978 ◽  
Vol 47 (3) ◽  
pp. 859-862 ◽  
Author(s):  
Beverly A. Timmons ◽  
James P. Boudreau
Keyword(s):  
Auditory Feedback ◽  
Age Groups ◽  
Delayed Auditory Feedback ◽  
Total Group ◽  
Msec Delay ◽  
Speaking Task

25 male stutterers and 25 male non-stutterers matched by age and speaking task, read or recited under conditions of normal and 113-, 226-, 306-, 413-, and 520-msec. delayed auditory feedback. Disfluency counts were correlated with delayed auditory feedback reactions which were changes in disfluencies under delay conditions. Pearson product-moment correlations were negative and significant for the combined group of stutterers and non-stutterers under all delays used. Correlations for stutterers were negative and significant for 113, 226, 306, and 413 msec. delay. For the total group of non-stutterers, all correlations were negative and significant. Correlations for age groups within the stuttering and non-stuttering groups were also presented.

Aftereffects of Delayed Auditory Feedback

1965 ◽  
Vol 20 (3) ◽  
pp. 817-823 ◽  
Author(s):  
Susan Zalosh ◽  
Leonard F. Salzman
Keyword(s):  
Auditory Feedback ◽  
Delay Time ◽  
Feedback Condition ◽  
Delayed Auditory Feedback

This experiment was designed to test whether there are aftereffects on speech to delayed auditory feedback and whether the aftereffects, if any, are a function of the severity of disruption of speech under the feedback condition. Fifty-seven Ss, divided into three equal groups, were exposed to various combinations of delay time and intensity of feedback. Comparisons of pre- and post-sidetone responses revealed no evidence of aftereffects on speech. No relationship to induced severity of speech disruption was found.

Auditory Feedback and Musical Keyboard Performance

1997 ◽  
Vol 15 (2) ◽  
pp. 153-174 ◽  
Author(s):  
Steven A. Finney
Keyword(s):  
Auditory Feedback ◽  
Feedback Condition ◽  
Musical Performance ◽  
Feedback Effects ◽  
Delayed Auditory Feedback ◽  
Significant Impairment

In an investigation into the role of auditory feedback guidance in musical performance, musically experienced subjects performed on an electronic keyboard under altered feedback conditions that included pitch and timing manipulations, as well as absence of auditory feedback. The results largely replicated the data reported by Gates and Bradshaw (1974): performance in the absence of auditory feedback showed no impairment, whereas performance under delayed auditory feedback showed significant impairment. In an extension of the Gates and Bradshaw study, however, it was found that altered pitch feedback caused little or no impairment and that altering the pitches in the delayed auditory feedback condition significantly reduced the amount of delayed auditory feedback impairment. These results show that different components of auditory feedback (pitch and timing) have separable effects on musical performance and pose a problem for theories of auditory feedback effects that do not explicitly distinguish these components.

Differential Sensitivity to Auditory Feedback Delay Intervals: A Preliminary Study

1968 ◽  
Vol 11 (3) ◽  
pp. 595-599 ◽  
Author(s):  
John H. Saxman
Keyword(s):  
Delay Interval ◽  
Auditory Feedback ◽  
Speech Signal ◽  
Relative Sensitivity ◽  
Differential Sensitivity ◽  
Feedback Delay ◽  
Delayed Auditory Feedback ◽  
Interval Change ◽  
Delay Times ◽  
Preliminary Study

Differential sensitivity to delay interval change (jnd) was assessed for six subjects at 12 standard delay times ranging from 30 msec to 360 msec. The speaker’s self-generated speech signal (/da/) and its return via delayed auditory feedback constituted the interval boundaries. Mean absolute jnd’s varied in magnitude from 15.45 msec to 19.66 msec and were found to be independent of the standard delay times. The relative sensitivity (ΔD/D) to delay change decreased rapidly at the shorter delay times, then leveled off to a fairly gradual slope beginning at approximately 150 msec.

Residual Effect of Delayed Auditory Feedback on Normal Speaking Rate and Fluency

1984 ◽  
Vol 59 (1) ◽  
pp. 61-62 ◽  
Author(s):  
Richard Ham ◽  
Donald Fucci ◽  
James Cantrell ◽  
Daniel Harris
Keyword(s):  
College Students ◽  
Auditory Feedback ◽  
Residual Effect ◽  
Speaking Rate ◽  
Residual Effects ◽  
Experimental Conditions ◽  
Delayed Auditory Feedback ◽  
Normal Speaking

The present study was designed to investigate possible residual effects of delayed auditory feedback on paragraph readings performed by normal speaking college students. No residual effect was shown under any of the experimental conditions employed.

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