bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 11, 2024
Abstract Auditory masking—the interference of the encoding and processing an acoustic stimulus imposed by one or more competing stimuli—is nearly omnipresent in daily life, presents a critical barrier to many listeners, including people with hearing loss, users aids cochlear implants, auditory disorders. The perceptual aspects masking have been actively studied for several decades, particular emphasis has placed on speech other sounds. neural effects such masking, especially at subcortical level, much less studied, large part due technical limitations making measurements. Recent work allowed estimation brainstem response (ABR), whose characteristic waves are linked specific areas, naturalistic speech. In this study, we used those techniques measure stimuli that were masked simultaneous stimuli. We presented listeners from one, two, three, five talkers, corresponding range signal-to-noise ratios (SNR; Clean, 0, −3, −6 dB), derived ABR each talker mixture. Each mixture was treated turn as target sound quicker acquire. found consistently across wave V amplitudes decreased latencies increased number talkers increased. Significance statement Trying listen someone speak noisy setting is common challenge most people, masking. Masking extensively behavioral recently cortex using EEG neurophysiological methods. Much known, however, about how affects system. Here mixtures streams ranging talkers. developed tools measuring determine stream impacted masker show becomes smaller increasingly delayed severe.
Language: Английский