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- Title
Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise.
- Authors
Koo, Miseung; Jeon, Jihui; Moon, Hwayoung; Suh, Myung-Whan; Lee, Jun-Ho; Oh, Seung-Ha; Park, Moo-Kyun
- Abstract
Using behavioral evaluation of free recall performance, we investigated whether reverberation and/or noise affected memory performance in normal-hearing adults. Thirty-four participants performed a free-recall task in which they were instructed to repeat the initial word after each sentence and to remember the target words after each list of seven sentences, in a 2 (reverberation) × 2 (noise) factorial design. Pupil dilation responses (baseline and peak pupil dilation) were also recorded sentence-by-sentence while the participants were trying to remember the target words. In noise, speech was presented at an easily audible level using an individualized signal-to-noise ratio (95% speech intelligibility). As expected, recall performance was significantly lower in the noisy environment than in the quiet condition. Regardless of noise interference or reverberation, sentence- baseline values gradually increased with an increase in the number of words to be remembered for a subsequent free-recall task. Long reverberation time had no significant effect on memory retrieval of verbal stimuli or pupillary responses during encoding.
- Subjects
INTELLIGIBILITY of speech; VERBAL memory; BEHAVIORAL assessment; VERBAL learning; PUPILLARY reflex; SPEECH; PROSPECTIVE memory
- Publication
Brain Sciences (2076-3425), 2021, Vol 11, Issue 7, p891
- ISSN
2076-3425
- Publication type
Article
- DOI
10.3390/brainsci11070891