Adaptive mechanisms facilitate robust performance in noise and in reverberation in an auditory categorization model.
Adaptive mechanisms facilitate robust performance in noise and in reverberation in an auditory categorization model.
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DOI：
10.1038/s42003-023-04816-z
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发表时间：
2023-05-02
影响因子：
5.9
通讯作者：
Sadagopan, Srivatsun
中科院分区：
文献类型：
--
作者：
Parida, Satyabrata;Liu, Shi Tong;Sadagopan, Srivatsun
为了获得强大的发声感知，听觉系统必须概括发声产生的可变性以及聆听环境（例如噪声和混响）引起的可变性。我们之前使用豚鼠和狨猴发声证明了分层模型通过检测稀疏的中间复杂性特征来概括生产变异性，这些特征可以从密集的谱时输入表示中最大程度地提供有关发声类别的信息。在这里，我们探索了三种生物学上可行的模型扩展，以概括环境变异性：（1）在退化条件下进行训练，（2）适应光谱时间阶段的声音统计数据，以及（3）特征检测阶段的灵敏度调整。所有机制都改善了发声分类性能，但改进趋势因退化类型和发声类型而异。模型性能需要一种或多种自适应机制来接近豚鼠在发声分类任务中的行为表现。这些结果强调了自适应机制在多个听觉处理阶段对实现稳健的听觉分类的贡献。用于对狨猴和豚鼠发声进行分类的计算模型强调了自适应机制在多个听觉处理阶段对实现稳健的听觉分类的贡献。
For robust vocalization perception, the auditory system must generalize over variability in vocalization production as well as variability arising from the listening environment (e.g., noise and reverberation). We previously demonstrated using guinea pig and marmoset vocalizations that a hierarchical model generalized over production variability by detecting sparse intermediate-complexity features that are maximally informative about vocalization category from a dense spectrotemporal input representation. Here, we explore three biologically feasible model extensions to generalize over environmental variability: (1) training in degraded conditions, (2) adaptation to sound statistics in the spectrotemporal stage and (3) sensitivity adjustment at the feature detection stage. All mechanisms improved vocalization categorization performance, but improvement trends varied across degradation type and vocalization type. One or more adaptive mechanisms were required for model performance to approach the behavioral performance of guinea pigs on a vocalization categorization task. These results highlight the contributions of adaptive mechanisms at multiple auditory processing stages to achieve robust auditory categorization. A computational model for categorizing vocalizations from marmosets and guinea pigs highlights the contributions of adaptive mechanisms at multiple auditory processing stages to achieve robust auditory categorization.
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影响因子：
16.2
作者：
Atallah BV;Bruns W;Carandini M;Scanziani M
通讯作者：
Scanziani M
在低频听力范围内，在体内听觉神经科学的豚鼠动物模型中更新。
影响因子：
2.8
作者：
Montes-Lourido, Pilar;Kar, Manaswini;Pernia, Marianny;Parida, Satyabrata;Sadagopan, Srivatsun
通讯作者：
Sadagopan, Srivatsun
影响因子：
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作者：
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影响因子：
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作者：
Froemke, Robert C.;Merzenich, Michael M.;Schreiner, Christoph E.
通讯作者：
Schreiner, Christoph E.
影响因子：
56.9
作者：
Barbour, DL;Wang, XQ
通讯作者：
Wang, XQ