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Experience-dependent refinement of natural approach responses towards specific visual stimuli in mice
bioRxiv - Animal Behavior and Cognition Pub Date : 2020-05-16 , DOI: 10.1101/2020.05.14.096941
Nicole M Procacci , Kelsey M Allen , Gael E Robb , Rebecca Ijekah , Jennifer L Hoy

Specific features of visual objects innately draw orienting and approach responses in animals, and provide natural signals of potential reward. In addition, the rapid refinement of innate approach responses enhances the ability of an animal to effectively and conditionally forage, capture prey or initiate a rewarding social experience. However, the neural mechanisms underlying how the brain encodes naturally appetitive stimuli and conditionally transforms stimuli into approach behavior remain unclear. As a first step towards this goal, we have developed a behavioral assay to quantify innate, visually-evoked approach behaviors in freely moving mice presented with simple, computer generated stimuli of varying sizes and speeds in the lower visual field. We found that specific combinations of stimulus features selectively evoked innate approach versus freezing behavioral responses. Surprisingly, we also discovered that prey capture experience selectively modified a range of visually-guided appetitive behaviors, including increasing the probability of approach and pursuit of moving stimuli, as well as altering those visual features that evoked approach. These findings will enable the use of sophisticated genetic strategies to uncover novel neural mechanisms underlying predictive coding, innate behavioral choice, and flexible, state-dependent processing of stimuli in the mouse visual system.

中文翻译:

小鼠对特定视觉刺激的自然接近反应的经验依赖提炼

视觉对象的特定特征与生俱来地吸引了动物的定向和接近反应,并提供了潜在奖励的自然信号。另外,对先天性反应的快速改进增强了动物有效和有条件地觅食,捕获猎物或引发有益的社会经历的能力。然而,大脑如何编码自然的食欲性刺激并有条件地将其转化为进场行为的神经机制仍不清楚。作为朝着这个目标迈出的第一步,我们已经开发了一种行为分析方法,以量化在自由移动的小鼠中固有的,视觉诱发的进场行为,这些小鼠表现出简单的,计算机生成的,在下部视野中具有不同大小和速度的刺激。我们发现,刺激特征的特定组合选择性地诱发了先天方法与冻结行为的反应。出乎意料的是,我们还发现捕获猎物的经历有选择地改变了一系列视觉引导的食欲行为,包括增加接近的可能性和对运动刺激的追求,以及改变那些引起接近的视觉特征。这些发现将使能够使用复杂的遗传策略来揭示新颖的神经机制,这些机制在小鼠视觉系统中的预测编码,先天的行为选择以及对状态的灵活,依赖于状态的处理中发挥了作用。包括增加接近的可能性和对运动刺激的追求,以及改变那些引起接近的视觉特征。这些发现将使能够使用复杂的遗传策略来揭示新颖的神经机制,这些机制在小鼠视觉系统中的预测编码,先天的行为选择以及对状态的灵活,依赖于状态的处理中发挥了作用。包括增加接近的可能性和对运动刺激的追求,以及改变那些引起接近的视觉特征。这些发现将使能够使用复杂的遗传策略来揭示新颖的神经机制,这些机制在小鼠视觉系统中的预测编码,先天的行为选择以及对状态的灵活,依赖于状态的处理中发挥了作用。
更新日期:2020-05-16
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