灵长类的ACC编码了"尾酒派对"中的自然语音交互
Arthur Lefevre1,2, Vikram Pal Singh1, Timothy Tyree1
1Cortical Systems & Behavior Laboratory, University of California San Diego, USA.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
前带带皮层 (ACC) 帮助在对话中将重要声音与背景噪音分开. 这个大脑区域对于在杂的环境中理解语音和管理社交声音交互至关重要.
科学领域:
- 神经科学是一个神经科学.
- 听觉神经科学 听觉神经科学
- 灵长类的认知能力
背景情况:
- 尾酒派对问题的神经基础 (CPP) 尚不清楚,特别是在自然主义环境中.
- 前带带皮层 (ACC) 参与社会监测,但其在听觉和声音分离方面的作用尚不清楚.
研究的目的:
- 调查ACC在自由活动的子中解决CPP中的作用.
- 为了检查ACC神经元在杂环境中的社交声交换期间如何编码听觉信号.
主要方法:
- 在与同物种的声交互期间,记录了大黄的ACC中的神经活动.
- 分析了对对话伙伴呼叫与背景呼叫者的神经元选择性.
- 评估了ACC对对话动态和重叠声音的敏感性.
主要成果:
- ACC神经元在背景噪音上对目标呼叫表现出选择性,实现图形/地面分离.
- 这种听觉选择性即使在重叠的背景声音中也存在,这是CPP的一个关键方面.
- 此外,ACC还编码了对话轮流结构,反映了对社会动态的敏感性.
结论:
- ACC在解决CPP中发挥着不可或缺的作用,通过将有意义的发音从竞争的声音中分离出来.
- 这种神经基质对于在复杂的社会声景中调节动态声交互至关重要.
- 在生态相关,杂的听觉环境中,ACC功能对于有效的沟通至关重要.
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