Cross-modal facilitation of auditory discrimination in a frog
Cross-modal facilitation of auditory discrimination in a frog
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DOI：
10.1098/rsbl.2022.0098
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发表时间：
2022-06
期刊：
影响因子：
3.3
通讯作者：
Logan S. James;A. Baier;R. Page;Paul Clements;K. Hunter;R. C. Taylor;M. Ryan
中科院分区：
文献类型：
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作者：
Logan S. James;A. Baier;R. Page;Paul Clements;K. Hunter;R. C. Taylor;M. Ryan
一种感觉模态的刺激可以影响另一种感觉模态的感知，从而导致包括人类错觉在内的多种效果。这也可能导致跨模态促进，即一种模态的感觉表现通过另一种模态的刺激而得到改善。例如，一个简单的声音可以提高人类和猫在视觉任务中的表现。然而，唤起这种促进效应的背景范围和潜在机制仍然知之甚少。在这里，我们展示了对野生捕获的túngara青蛙的交叉模态刺激，这是一种对雌性声音偏好有充分研究的物种。在趋声性实验中，我们首先确定了视觉和地震线索（声囊运动和水波纹）的组合在行为上与雌性在两种求偶叫声之间的选择有关。然后我们发现，这种组合的跨模态刺激在存在背景噪音的情况下拯救了一种物种典型的声音偏好，否则这种偏好就会被消除。这些结果强调了跨模态刺激是如何激发接受者的注意力来提高决策过程中的表现的。有了这个，我们为未来的工作奠定了基础，揭示了促进跨模式便利化效应的过程和条件。
Stimulation in one sensory modality can affect perception in a separate modality, resulting in diverse effects including illusions in humans. This can also result in cross-modal facilitation, a process where sensory performance in one modality is improved by stimulation in another modality. For instance, a simple sound can improve performance in a visual task in both humans and cats. However, the range of contexts and underlying mechanisms that evoke such facilitation effects remain poorly understood. Here, we demonstrated cross-modal stimulation in wild-caught túngara frogs, a species with well-studied acoustic preferences in females. We first identified that a combined visual and seismic cue (vocal sac movement and water ripple) was behaviourally relevant for females choosing between two courtship calls in a phonotaxis assay. We then found that this combined cross-modal stimulus rescued a species-typical acoustic preference in the presence of background noise that otherwise abolished the preference. These results highlight how cross-modal stimulation can prime attention in receivers to improve performance during decision-making. With this, we provide the foundation for future work uncovering the processes and conditions that promote cross-modal facilitation effects.