Journal of Speech and Hearing Research Vol.12 383-388 June 1969.
© American Speech-Language-Hearing Association
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Verbal Punishment of Disfluency Following Augmentation of Disfluency by Random Delivery of Aversive Stimuli

Robert H. Brookshire
Veterans Administration Hospital, Kansas City, Missouri

Roberta A. Eveslage
University of Kansas Medical Center, Kansas City, Kansas

Ten normal speakers read a passage, first in Random Condition, then in Contingent Condition. In each condition, subjects read in Baserate (5 minutes), Conditioning (15 minutes), and Extinction (10 minutes). During Conditioning in Random Condition, subjects received a 0.75 sec., 95 dB burst of white noise on a random schedule. During Conditioning in Contingent Condition, subjects heard the word no each time they were disfluent. Disfluency increased under random noise and decreased under contingent no. The results indicate that disfluency that is established or augmented by an aversive stimulus is amenable to suppression by punishment with a different aversive stimulus.


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