Adaptions to visually noisy environments in cuttlefish

墨鱼对视觉嘈杂环境的适应

• 批准号: 2426241
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2426241
• 关键词: Adaptions; visually; noisy; environments; cuttlefish

Many animals rely on their visual systems for a wide range of behavioural tasks. However, visual information can be difficult to detect in environments where other stimuli disrupt visual cues. This so-called 'visual noise' can come as a hindrance for certain behaviours such as prey detection, but can also be exploited by animals, for example, through camouflage. In the marine environment, caustic flicker is a ubiquitous visual noise. However, literature about the effect of caustics on the visual systems and behaviour of marine organisms is sparse. This is no less true for cuttlefish. Despite being considered as highly visual animals and their recent use in numerous studies in the field of vision ecology, little is known about the effect of caustic flicker on their visual processing and their corresponding behavioural aspects. Therefore, I will investigate if and to what degree caustic flicker impairs the vision and behaviour of cuttlefish using state- of-the-art technologies including spatiotemporally synchronised intensity-polarization screens and markerless deep- learning tracking software. Investigating how cuttlefish and other cephalopods behave in caustic environments is not only helpful to further comprehend the dynamic behavioural repertoires and complex cognitive abilities of these invertebrates, it also has broader implications for understanding how animals process visual information, especially in those with vastly different neural circuits to vertebrates.

许多动物依靠视觉系统完成各种各样的行为任务。然而，在其他刺激干扰视觉线索的环境中，视觉信息可能难以检测。这种所谓的“视觉噪音”可能会阻碍某些行为，例如猎物检测，但也可能被动物利用，例如通过伪装。在海洋环境中，焦散闪烁是一种普遍存在的视觉噪声。然而，关于焦散对海洋生物的视觉系统和行为的影响的文献很少。这对乌贼来说也是如此。尽管被认为是高度视觉动物和他们最近在视觉生态学领域的许多研究中的使用，但很少有人知道焦散闪烁对他们的视觉处理和相应的行为方面的影响。因此，我将使用最先进的技术，包括时空同步强度偏振屏幕和无标记深度学习跟踪软件，研究焦散闪烁是否以及在多大程度上损害乌贼的视觉和行为。研究乌贼和其他头足类动物在腐蚀性环境中的行为不仅有助于进一步理解这些无脊椎动物的动态行为和复杂的认知能力，而且对理解动物如何处理视觉信息具有更广泛的意义，特别是在那些与脊椎动物有着巨大不同的神经回路的动物中。