The effortfulness hypothesis predicts that as background noise, age and hearing loss increase, the accuracy of memory recognition will decrease. Here we presented young and older adult listeners with sentences at three signal-to-noise ratios in multitalker babble (∞, +15 dB, +5 dB) and probed subsequent recognition memory for these sentences as an offline measure of cognitive processing. Our results confirm the effortfulness hypothesis.
Program in Audiology and Communication Sciences, Washington University School of Medicine
Auditory Perception; Cognition
Memory – Age Factors
Koeritzer, Margaret Ann, "Effects of signal-to-noise ratio on precision of memory for speech" (2015). Independent Studies and Capstones. Paper 708. Program in Audiology and Communication Sciences, Washington University School of Medicine.