fMRI Reveals a Novel Region for Evaluating Acoustic Information for Mate Choice in a Female Songbird
fMRI Reveals a Novel Region for Evaluating Acoustic Information for Mate Choice in a Female Songbird
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功能磁共振成像揭示了一个评估雌性鸣鸟择偶声学信息的新区域
DOI：
10.1016/j.cub.2018.01.048
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发表时间：
2018
期刊：
影响因子：
9.2
通讯作者：
Van der Linden
中科院分区：
文献类型：
--
作者：
Van Ruijssevelt;von Eugen;De Groof;Hamaide;Verhoye;Güntürkün;Woolley;S. C. ;Van der Linden
性伴侣的选择是个人做出的最重要的决定之一，因此受到进化的强烈影响。在社会物种中，通信信号可以传达有关身份，状态或信号发送者的质量的大量信息，准确解释通信信号对配偶选择至关重要。尽管社会信息处理的重要性，迄今为止，相对较少的是知道的神经生物学机制，有助于性决策和偏好。在这项研究中，我们结合使用全脑功能磁共振成像（fMRI）、立即早期基因表达和行为测试来识别对于雌性鸣禽斑马雀的求爱歌曲的感知和评估至关重要的电路。（Taeniopygia guttata）。雌性斑胸草雀对雄性鸣唱的细微差别很敏感，并且强烈地喜欢更长、更快、更刻板的求偶歌曲而不是非求偶歌曲。使用BOLD功能磁共振成像和EGR1表达测定，我们发现了一个新的区域参与听觉知觉决策位于鸟类中央巢皮层的感觉整合区以外的传统研究听觉前脑通路。在这个区域的活动变化，在响应声学相似，但分类不同的刺激表现出更强的平行行为反应比听觉感官区域。这些数据突出了潜在的作用尾中央巢皮层（NCC）作为一个新的节点在鸟类电路的声学信号的评价和它们的使用在配偶选择。
Selection of sexual partners is among the most critical decisions that individuals make and is therefore strongly shaped by evolution. In social species, where communication signals can convey substantial information about the identity, state, or quality of the signaler, accurate interpretation of communication signals for mate choice is crucial. Despite the importance of social information processing, to date, relatively little is known about the neurobiological mechanisms that contribute to sexual decision making and preferences. In this study, we used a combination of whole-brain functional magnetic resonance imaging (fMRI), immediate early gene expression, and behavior tests to identify the circuits that are important for the perception and evaluation of courtship songs in a female songbird, the zebra finch (Taeniopygia guttata). Female zebra finches are sensitive to subtle differences in male song performance and strongly prefer the longer, faster, and more stereotyped courtship songs to non-courtship renditions. Using BOLD fMRI and EGR1 expression assays, we uncovered a novel region involved in auditory perceptual decision making located in a sensory integrative region of the avian central nidopallium outside the traditionally studied auditory forebrain pathways. Changes in activity in this region in response to acoustically similar but categorically divergent stimuli showed stronger parallels to behavioral responses than an auditory sensory region. These data highlight a potential role for the caudocentral nidopallium (NCC) as a novel node in the avian circuitry underlying the evaluation of acoustic signals and their use in mate choice.
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