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首页> 外文期刊>The European Journal of Neuroscience >Social context modulates behavioural and brain immediate early gene responses to sound in male songbird.
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Social context modulates behavioural and brain immediate early gene responses to sound in male songbird.

机译：社会情境调节行为和大脑对雄性鸣禽的声音的早期早期基因反应。

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摘要

Although it is well known that brain sensory information processing is a highly modulated phenomenon, how this brain function is shaped by experience and social context remains a question to explore. In this paper, we present the first attempt to investigate this problem using a songbird acoustic communication paradigm. Social context is well known to influence acoustic communicating behaviours in birds. The present paper investigates whether brain processing of auditory inputs can be modulated by this 'audience effect'. Given that call-based communication is known to be highly context-dependent, we focused on the response of male zebra finches (Taeniopygia guttata) to female calls. We tested to see if the current social context surrounding the hearing bird can modify a sound-induced immediate early gene (IEG) activation in the specific region of the caudomedial nidopallium (NCM), a songbird brain analogous to the superficial layers of the mammalian primary auditory cortex. Our results show that the expression of the sound-induced immediate early gene ZENK in the NCM is considerably enhanced when the hearing bird is in the presence of conspecifics, compared to when he is alone. This context-dependent increase of a sound-induced immediate early gene expression can be correlated with the differential behavioural response of males to the playback of the same acoustic stimulus as a function of social context.
机译：尽管众所周知，大脑的感觉信息处理是一种高度调节的现象，但是如何通过经验和社交环境来塑造这种大脑功能仍然是一个有待探索的问题。在本文中，我们提出了使用歌手声音通信范例研究此问题的首次尝试。众所周知，社交环境会影响鸟类的声音交流行为。本文研究了这种听觉效应是否可以调节大脑对听觉输入的处理。鉴于已知基于呼叫的通信高度依赖于上下文，因此我们专注于男性斑马雀（Taeniopygia guttata）对女性呼叫的响应。我们进行了测试，以了解围绕听鸟的当前社会环境是否可以在拟南芥（NCM）的特定区域（类似于哺乳动物原发性表层的鸣鸟大脑）的特定区域中改变声音诱导的立即早期基因（IEG）激活。听皮层。我们的结果表明，与单独存在时相比，当听力鸟存在同种体时，NCM中声音诱导的立即早期基因ZENK的表达大大增强。声音诱导的早期早期基因表达的这种与背景有关的增加可以与男性对相同的声刺激的回放的不同行为反应相关，这是社会背景的函数。

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