Individual differences elucidate the perceptual benefits associated with robust temporal fine-structure processing

• 成果类型: Article
• 署名作者: Borjigin, Agudemu; Bharadwaj, Hari M.
• 署名单位: Purdue University System; Purdue University; University of Wisconsin System; University of Wisconsin Madison; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-12267
• DOI: 10.1073/pnas.2317152121
• 发表日期: 2025-01-07
• 关键词: auditory-nerve fibers; interaural time; normal-hearing; energetic masking; informational masking; fundamental-frequency; sound localization; differences reveal; speech-perception; coding frequency

摘要

to and precisely follow very fast cycle-by-cycle fluctuations in the phase of sounddriven cochlear vibrations. Yet, the perceptual role of this temporal fine structure experimentally manipulate TFS cues without altering other perceptually relevant cues. Here, we circumnavigated this limitation by leveraging individual differences across 200 participants to systematically compare variations in TFS sensitivity to performance in a range of speech perception tasks. TFS sensitivity was assessed through detection of interaural time/phase differences, while speech perception was evaluated by word identification under noise interference. Results suggest that greater TFS sensitivity is not associated with greater masking release from fundamental-frequency or spatial cues but appears to contribute to resilience against the effects of reverberation. We also found that greater TFS sensitivity is associated with faster response times, indicating coding for everyday hearing.