WEKO3
アイテム
Orthogonal spectral and temporal envelope representation during the onset phase in auditory cortex
http://hdl.handle.net/10458/0002001921
http://hdl.handle.net/10458/0002001921054411e7-34ea-4d6d-9bea-834e5dfc92fb
| 名前 / ファイル | ライセンス | アクション |
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| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||
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| 公開日 | 2025-11-18 | |||||||||||||||||||||
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| タイトル | Orthogonal spectral and temporal envelope representation during the onset phase in auditory cortex | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||
| キーワード | ||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| キーワード | Sensory neuroscience | |||||||||||||||||||||
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| 言語 | en | |||||||||||||||||||||
| キーワード | Systems neuroscience | |||||||||||||||||||||
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| 資源タイプ | journal article | |||||||||||||||||||||
| アクセス権 | ||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||
| 著者 |
髙橋, 邦行
× 髙橋, 邦行
WEKO
35246
× Guo, Tianrui
× Yamagishi, Tatsuya
× Ohshima, Shinsuke
× Tsukano, Hiroaki
× Horii, Arata
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| 内容記述タイプ | Abstract | |||||||||||||||||||||
| 内容記述 | Speech perception relies on two fundamental acoustic components: spectral and temporal. While spectral information is known to be represented in the auditory cortex through tonotopy, how temporal features are organized has remained unclear. Here, by varying onset rise-ramp steepness and frequencies, we reveal that temporal envelope steepness—a critical cue for phoneme discrimination and sound source perception—is systematically mapped in the mouse auditory cortex. Using widefield calcium imaging, we discovered that the envelope steepness is represented orthogonally to the tonotopic axis, forming a two-dimensional cortical map that mirrors the dual structure of sounds. This organization was observed in primary-like areas but not in higher-order-like areas, indicating distinct auditory processing streams. These findings uncover a principle of cortical organization, suggesting that the auditory cortex encodes sound along two independent axes and thereby provides a neural basis for the parallel processing of complex sounds such as speech and natural acoustic environments. | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
| 書誌情報 |
en : Iscience ja : 巻 28, 号 11, p. 113796, 発行日 2025-11-21 |
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| 出版者 | ||||||||||||||||||||||
| 出版者 | Elsevier BV | |||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||||||||
| 収録物識別子 | 25890042 | |||||||||||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.isci.2025.113796 | |||||||||||||||||||||
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| 出版タイプ | VoR | |||||||||||||||||||||
