Oxenham Andrew J
Center for Applied and Translational Sensory Science, University of Minnesota Twin Cities, Minneapolis, MN, United States.
Department of Psychology, University of Minnesota Twin Cities, Minneapolis, MN, United States.
Front Neurosci. 2023 Jan 9;16:1074752. doi: 10.3389/fnins.2022.1074752. eCollection 2022.
Pitch is a fundamental aspect of auditory perception that plays an important role in our ability to understand speech, appreciate music, and attend to one sound while ignoring others. The questions surrounding how pitch is represented in the auditory system, and how our percept relates to the underlying acoustic waveform, have been a topic of inquiry and debate for well over a century. New findings and technological innovations have led to challenges of some long-standing assumptions and have raised new questions. This article reviews some recent developments in the study of pitch coding and perception and focuses on the topic of how pitch information is extracted from peripheral representations based on frequency-to-place mapping (tonotopy), stimulus-driven auditory-nerve spike timing (phase locking), or a combination of both. Although a definitive resolution has proved elusive, the answers to these questions have potentially important implications for mitigating the effects of hearing loss devices such as cochlear implants.
音高是听觉感知的一个基本方面,在我们理解语音、欣赏音乐以及专注于一种声音而忽略其他声音的能力中起着重要作用。围绕音高在听觉系统中如何被表征,以及我们的感知如何与潜在的声学波形相关联的问题,已经成为一个多世纪以来的研究和辩论主题。新的发现和技术创新对一些长期以来的假设提出了挑战,并引发了新的问题。本文回顾了音高编码与感知研究的一些最新进展,并聚焦于基于频率到位置映射(音调拓扑)、刺激驱动的听觉神经尖峰时间(锁相)或两者结合,如何从外周表征中提取音高信息这一主题。尽管最终的解决方案难以捉摸,但这些问题的答案对于减轻听力损失(如人工耳蜗等设备)的影响可能具有重要意义。