2023
DOI: 10.1523/jneurosci.2002-22.2023
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Human-Like Modulation Sensitivity Emerging through Optimization to Natural Sound Recognition

Abstract: Natural sounds contain rich patterns of amplitude modulation (AM), which is one of the essential sound dimensions for auditory perception. The sensitivity of human hearing to AM measured by psychophysics takes diverse forms depending on the experimental conditions. Here, we address with a single framework the questions of why such patterns of AM sensitivity have emerged in the human auditory system and how they are realized by our neural mechanisms. Assuming that optimization for natural sound recognition has … Show more

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Cited by 7 publications
(3 citation statements)
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“…Another study optimized a network for a small-scale (10-digit) word recognition task and reported seeing some neurophysiological properties of the auditory system [38]. Koumura and colleagues [37,107] trained networks on environmental sound or speech classification and observed tuning to amplitude modulation, similar to that found in peripheral and mid-level stages of biological auditory systems but did not investigate the putative hierarchy of cortical regions. Giordano and colleagues [44] found that 3 DNN models predicted non-primary voxel responses better than standard acoustic features, generally consistent with the results shown here.…”
Section: Plos Biologymentioning
confidence: 97%
“…Another study optimized a network for a small-scale (10-digit) word recognition task and reported seeing some neurophysiological properties of the auditory system [38]. Koumura and colleagues [37,107] trained networks on environmental sound or speech classification and observed tuning to amplitude modulation, similar to that found in peripheral and mid-level stages of biological auditory systems but did not investigate the putative hierarchy of cortical regions. Giordano and colleagues [44] found that 3 DNN models predicted non-primary voxel responses better than standard acoustic features, generally consistent with the results shown here.…”
Section: Plos Biologymentioning
confidence: 97%
“…All natural sounds such as music and speech can be described in the form of amplitude modulations over time and frequency (Singh & Theunissen, 2003). These modulations are crucial for speech perception (Chi et al, 1999), and the auditory system appears to be highly selective towards and specialised for amplitude-modulated natural sounds such as speech (Joris, Schreiner, & Rees, 2004;Koumura, Terashima, & Furukawa, 2023;Liang, Lu, & Wang, 2002;Yin et al, 2011). The system is also robust to degraded spectral resolution (Remez et al, 1981) something which often occurs in hearing-impaired listeners or users of cochlear implantsso long as amplitude modulations are preserved.…”
Section: From Sound To Perceptionmentioning
confidence: 99%
“…This model-driven approach offers a unique opportunity to map in greater depth the information-processing architecture of the human auditory system in the case of natural sounds and test for the existence of central mechanisms selectively tuned for biological sound-source detection and biodiversity assessment. This approach already proved to be successful for speech and music perception (e.g., Kell et al, 2018;Koumura et al, 2019Koumura et al, , 2023Saddler et al, 2021).…”
Section: Direction II Experimental and Computational Paradigms For St...mentioning
confidence: 99%