Effects of Low-Pass Filtering on the Rate of Learning and Retrieval from Memory of Speech-Like Stimuli Ten pairs of auditory-visual stimuli were utilized in a paired-associate learning task and a retrieval from auditory memory task presented to two groups of normal-hearing subjects. One group heard unfiltered auditory stimuli and the other group heard the same stimuli under low-pass filtering conditions. The number of trials required to ... Research Article
Research Article  |   June 01, 1974
Effects of Low-Pass Filtering on the Rate of Learning and Retrieval from Memory of Speech-Like Stimuli
 
Author Affiliations & Notes
  • Robert Novak
    St. Luke’s Hospital, Cedar Rapids, Iowa
  • Julia Davis
    University of Iowa, Iowa City, Iowa
Article Information
Research Articles
Research Article   |   June 01, 1974
Effects of Low-Pass Filtering on the Rate of Learning and Retrieval from Memory of Speech-Like Stimuli
Journal of Speech, Language, and Hearing Research, June 1974, Vol. 17, 279-285. doi:10.1044/jshr.1702.279
History: Received November 16, 1973 , Accepted February 7, 1974
 
Journal of Speech, Language, and Hearing Research, June 1974, Vol. 17, 279-285. doi:10.1044/jshr.1702.279
History: Received November 16, 1973; Accepted February 7, 1974

Ten pairs of auditory-visual stimuli were utilized in a paired-associate learning task and a retrieval from auditory memory task presented to two groups of normal-hearing subjects. One group heard unfiltered auditory stimuli and the other group heard the same stimuli under low-pass filtering conditions. The number of trials required to learn the pairs was the measure for the learning task. The number of items recalled after presentation of strings of the auditory stimuli, ranging in length from two to nine items, was the measure of auditory retrieval. Comparison of performance between the two groups indicated that the group that heard filtered auditory stimuli required a significantly greater number of trials to learn the pairs to specifications, and performed significantly poorer in recall of five-item strings of stimuli than the group that heard unfiltered auditory stimuli. There was no difference between the two groups' performance in recall of two-, seven-, and nine-item strings. The effects of filtering are discussed with regard to their implications for understanding certain deficits associated with hearing loss.

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