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- W1829797584 abstract "Purpose We wished to make a comparison of psychophysiological measures of listening effort with subjective and dual-task measures of listening effort for a diotic-dichotic-digits and a sentences-in-noise task. Method Three groups of young adults (18–38 years old) with normal hearing participated in three experiments: two psychophysiological studies for two different listening tasks and a dual-task measure for a sentences-in-noise task. Psychophysiological variables included skin conductance, heart-rate variability, and heart rate; the dual-task measure was a letter-identification task. Heart-rate variability was quantified with the difference from baseline for the normalized standard deviation of R to R . Results Heart-rate variability differences from baseline were greater for increased task complexity and for poorer signal-to-noise ratios (SNRs). The dual-task measure of listening effort also increased for sentences presented at a +5 dB SNR compared with a +15 dB SNR. Skin conductance was elevated for greater task complexity only, and similar across noise conditions. None of these measures were significantly correlated with subjective measures of listening effort. Conclusions Heart-rate variability appears to be a robust psychophysiological indicator of listening effort, sensitive to both task complexity and SNR. This sensitivity to SNR was similar to a dual-task measure of listening effort." @default.
- W1829797584 created "2016-06-24" @default.
- W1829797584 creator A5003495268 @default.
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- W1829797584 date "2015-12-01" @default.
- W1829797584 modified "2023-10-17" @default.
- W1829797584 title "Comparison of Psychophysiological and Dual-Task Measures of Listening Effort" @default.
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- W1829797584 doi "https://doi.org/10.1044/2015_jslhr-h-14-0180" @default.
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