Can you hear/see me? Multisensory integration of signals does not always facilitate mate choice
Can you hear/see me? Multisensory integration of signals does not always facilitate mate choice
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DOI：
10.1093/beheco/arac061
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发表时间：
2022-06
影响因子：
2.4
通讯作者：
Derek A Coss;M. Ryan;R. Page;K. Hunter;R. C. Taylor
中科院分区：
文献类型：
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作者：
Derek A Coss;M. Ryan;R. Page;K. Hunter;R. C. Taylor
许多物种的雌性使用多种感官方式选择配偶。然而，在通过多种感官方式进行交流的动物密集聚集体中，可能会出现多模式噪声。一些证据表明，多模态信号可能并不总能提高接收器的决策性能。当感觉系统处理来自多模态信号源的输入时，可能会出现多模态噪声，并且由于认知整合任务的需求，可能会使决策变得复杂。我们测试了雌性 túngara 青蛙（Physalaemus (=Engystomops) pustulosus）对来自多种感官模式（听觉和视觉）的噪音中的雄性交配信号的反应。噪声处理分为三类：声学、视觉和多模态。我们使用来自同种动物和异种动物的自然叫声来产生噪音。机器青蛙被用作视觉信号成分（伴随叫声的同步声囊膨胀）或视觉噪声（伴随叫声的异步声囊膨胀）。女性表示在单峰噪声存在的情况下更喜欢通常更具吸引力的叫声。然而，在多模态信号和噪声治疗期间（机器蛙在背景噪声下使用），在存在同种合唱噪声的情况下，雌性未能表达出对通常有吸引力的叫声的偏好。我们发现社会背景和多模态信号成分的时间同步对于多模态通信很重要。我们的结果表明，多模态信号有可能增加感官场景的复杂性并降低女性决策的效率。
Females of many species choose mates using multiple sensory modalities. Multimodal noise may arise, however, in dense aggregations of animals communicating via multiple sensory modalities. Some evidence suggests multimodal signals may not always improve receiver decision-making performance. When sensory systems process input from multimodal signal sources, multimodal noise may arise and potentially complicate decision-making due to the demands on cognitive integration tasks. We tested female túngara frog, Physalaemus (=Engystomops) pustulosus, responses to male mating signals in noise from multiple sensory modalities (acoustic and visual). Noise treatments were partitioned into three categories: acoustic, visual, and multimodal. We used natural calls from conspecifics and heterospecifics for acoustic noise. Robotic frogs were employed as either visual signal components (synchronous vocal sac inflation with call) or visual noise (asynchronous vocal sac inflation with call). Females expressed a preference for the typically more attractive call in the presence of unimodal noise. However, during multimodal signal and noise treatments (robofrogs employed with background noise), females failed to express a preference for the typically attractive call in the presence of conspecific chorus noise. We found that social context and temporal synchrony of multimodal signaling components are important for multimodal communication. Our results demonstrate that multimodal signals have the potential to increase the complexity of the sensory scene and reduce the efficacy of female decision making.