Salles Angeles, Loscalzo Emely, Montoya Jessica, Mendoza Rosa, Boergens Kevin M, Moss Cynthia F
Department of Biological Sciences, University of Illinois Chicago, Chicago, IL 60607, USA.
Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA.
iScience. 2024 May 3;27(6):109872. doi: 10.1016/j.isci.2024.109872. eCollection 2024 Jun 21.
There is strong evidence that social context plays a role in the processing of acoustic signals. Yet, the circuits and mechanisms that govern this process are still not fully understood. The insectivorous big brown bat, , emits a wide array of communication calls, including food-claiming calls, aggressive calls, and appeasement calls. We implemented a competitive foraging task to explore the influence of behavioral context on auditory midbrain responses to conspecific social calls. We recorded neural population responses from the inferior colliculus (IC) of freely interacting bats and analyzed data with respect to social context. Analysis of our neural recordings from the IC shows stronger population responses to individual calls during social events. For the first time, neural recordings from the IC of a copulating bat were obtained. Our results indicate that social context enhances neuronal population responses to social vocalizations in the bat IC.
有充分证据表明，社会环境在声信号处理中发挥作用。然而，控制这一过程的神经回路和机制仍未被完全理解。食虫的大棕蝠会发出各种各样的通讯叫声，包括食物索取叫声、攻击性叫声和安抚性叫声。我们实施了一项竞争性觅食任务，以探究行为环境对听觉中脑对同种社会叫声反应的影响。我们记录了自由互动蝙蝠下丘（IC）的神经群体反应，并根据社会环境分析数据。对我们从IC记录的神经数据的分析表明，在社交活动期间，神经群体对个体叫声的反应更强。首次获得了交配中蝙蝠IC的神经记录。我们的结果表明，社会环境增强了蝙蝠IC中神经群体对社会发声的反应。
