当前位置: X-MOL 学术bioRxiv. Anim. Behav. Cognit. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Equal performance but distinct behaviors: Astatotilapia burtoni sex differences in a novel object recognition task and spatial maze
bioRxiv - Animal Behavior and Cognition Pub Date : 2020-10-14 , DOI: 10.1101/2020.08.03.234658
Kelly J. Wallace , Hans A. Hofmann

Sex differences in behavior and cognition can be driven by differential selection pressures from the environment and in the underlying neuromolecular mechanisms of decision-making. The highly social cichlid fish Astatotilapia burtoni exhibits dynamic and complex social hierarchies, yet explicit cognitive testing (outside of social contexts) and investigations of sex differences in cognition have yet to be fully explored. Here we assessed male and female A. burtoni in two cognitive tasks: a novel object recognition task and a spatial task. We hypothesized that males outperform females in a spatial learning task and exhibit more neophilic/exploratory behavior in across both tasks. In the present study we find that both sexes prefer the familiar object in a novel object recognition task, but the time at which they exhibit this preference differs between the sexes. Females more frequently learned the spatial task, exhibiting longer decision latencies and quicker error correction, suggesting a potential speed-accuracy tradeoff. Furthermore, the sexes differ in space use in both tasks and in a principal component analysis of the spatial task. A model selection analysis finds that preference, approach, and interaction duration in the novel object recognition task that reach a threshold of importance averaged across all models. This work highlights the need to explicitly test for sex differences in cognition to better understand how individuals navigate dynamic social environments

中文翻译:

表现均等但行为不同:一种新颖的物体识别任务和空间迷宫中的牛膝无性别差异

行为和认知上的性别差异可由环境和决策的潜在神经分子机制的不同选择压力驱动。高度社会化的丽鱼科鱼表现出动态而复杂的社会等级,但是(在社会背景之外)明确的认知测试和对性别差异的研究尚待充分探索。在这里,我们在两个认知任务中评估了男性和女性的A.burtoni:一种新颖的物体识别任务和一个空间任务。我们假设在空间学习任务中男性表现优于女性,并且在两项任务中表现出更多的亲近性/探索性行为。在本研究中,我们发现在新颖的物体识别任务中,男女都喜欢熟悉的物体,但是他们表现出这种偏好的时间因性别而异。女性更频繁地学习空间任务,表现出更长的决策等待时间和更快的错误纠正能力,这表明了潜在的速度准确性权衡。此外,在两个任务和空间任务的主成分分析中,性别在空间使用上都不同。模型选择分析发现,新颖对象识别任务中的偏好,方法和交互作用持续时间达到了所有模型中平均重要性阈值。这项工作强调需要明确测试性别差异,以更好地了解个人如何在动态的社交环境中导航 建议潜在的速度准确性权衡。此外,在两个任务和空间任务的主成分分析中,性别在空间使用上都不同。模型选择分析发现,新颖对象识别任务中的偏好,方法和交互持续时间达到所有模型中平均重要性阈值。这项工作强调需要明确测试性别差异,以更好地了解个人如何在动态的社交环境中导航 建议潜在的速度准确性权衡。此外,在两个任务和空间任务的主成分分析中,性别在空间使用上都不同。模型选择分析发现,新颖对象识别任务中的偏好,方法和交互作用持续时间达到了所有模型中平均重要性阈值。这项工作强调需要明确测试性别差异,以更好地了解个人如何在动态的社交环境中导航
更新日期:2020-10-15
down
wechat
bug