Abstract
The most common strategy used by listeners when they cannot understand an utterance is a request for repetition. Repetition may improve perception in a number of ways, including priming the target message via sharpening the representation of aspects of the signal centrally, buying additional time for the listener to process the message, and enhancing the coding of information into memory. In the present study, the benefit of hearing an utterance a second time was measured in three different types of maskers (competing speech, single-channel envelope modulated noise, and steady-state speech shaped noise) using two different tasks: immediate recognition of the target sentence and memory for words presented during a previous block of trials. For the latter task, participants were presented with isolated words and were asked if those words appeared in the previous set of sentences. Participants (younger, middle-aged, and older adults) also completed a battery of cognitive tasks that included measures of processing speed, attentional control, and working memory. This presentation will describe results of analyses comparing the benefit of repetition for immediate recall and memory among the listener groups in the presence of different types of maskers. (Work supported by NIDCD R01 DC012057.)
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