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首页> 外文期刊>Zoological Science >Visual cues for suppressing isolation-induced distress calls in quail chicks
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Visual cues for suppressing isolation-induced distress calls in quail chicks

机译：抑制鹌鹑雏鸡因隔离引起的求救信号的视觉提示

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When socially isolated from siblings, newly hatched chicks emit distress calls at a high frequency. As a step toward identifying brain mechanisms responsible for recognition of conspecifics, we analyzed sensory cues critical for suppressing distress calls in socially isolated quail chicks at post-hatch day 2 to 4. Each subject of wild-type chicks was reared with another wild-type companion chick for 1-2 nights before tests. As the first step, we found that distress call was completely suppressed when accompanied by another wild-type chick, irrespective of whether the subject had previously been familiarized with the chick or not. When paired with an albino chick, on the other hand, the subject emitted significantly more calls, suggesting that the wild-type plumage is important. As the next step, in search of the critical sensory modality, we found that visual display of a conspecific chick suppressed the distress call even without accompanying acoustical stimuli. On the other hand, the acoustical stimuli alone were without effects. Olfactory as well as tactile sensations also proved irrelevant. As the final step, we tried to identify the significant sub-modalities in the visual images of conspecifics. Degraded visual image of a moving chick (degraded in fine details) caused a significant but incomplete suppression, whereas an anesthetized chick was without effects. On the other hand, distress calls were completely suppressed even without behavioral correspondence or exact plumage coloration. All of these data suggest that visual image of a moving chick should be given at a high spatial resolution, and wild-type plumage pattern might provide important visual cues.
机译：当与兄弟姐妹在社会上隔离开来时，刚孵出的雏鸡会频繁发出求救信号。为了确定负责识别特定物种的大脑机制，我们在孵化后第2至4天分析了对于抑制社交孤立的鹌鹑雏鸡求救信号至关重要的感官提示。每个野生型雏鸡的受试者都饲养了另一种野生型雏鸡测试前1-2晚陪伴小鸡。第一步，我们发现与另一只野生型雏鸡相伴时，遇险呼叫被完全抑制，而与受试者先前是否熟悉过这种雏鸡无关。另一方面，当与白化病的小鸡配对时，受试者发出的声音明显更多，这表明野生型羽毛非常重要。下一步，在寻找关键的感觉方式时，我们发现即使没有伴随的声音刺激，同种小鸡的视觉显示也可以抑制窘迫感。另一方面，仅听觉刺激没有效果。嗅觉和触觉感觉也无关紧要。作为最后一步，我们试图确定同种异体视觉图像中的重要子模式。移动中的雏鸡的视觉图像退化（细节退化）会导致明显但不完全的抑制，而麻醉的雏鸡则没有效果。另一方面，即使没有行为对应或准确的羽毛着色，遇险呼叫也被完全抑制。所有这些数据表明，应该以高空间分辨率提供移动小鸡的视觉图像，而野生型羽毛图案可能会提供重要的视觉提示。

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