Collicular circuits supporting the perceptual, motor and cognitive demands of ethological environments.

Collicular circuits supporting the perceptual, motor and cognitive demands of ethological environments.
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DOI:
10.1016/j.conb.2023.102773
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发表时间:
2023-10
影响因子:
5.7
通讯作者:
--
中科院分区:
医学2区
文献类型:
--
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动物进化是为了在环境中生存。因此,一个合理的假设是,大脑进化优先处理有用的感官信息,而不是对周围环境的完整表征。上级丘或顶盖是处理动物周围环境并指导空间运动的大脑区域。在这里,我们回顾了最近的研究的作用,上级丘,以评估这种“效用假说”的有效性。我们讨论了丘神经元的反应特性如何在不同的解剖区域,以捕捉动物行为学相关的刺激在一个给定的部分的感觉场。接下来,我们集中在最近的进展解剖的作用,确定类型的感觉和运动神经元的丘猎物捕获。最后,我们讨论了最近的文献描述这个古老的结构,与神经回路超过5亿年的历史,实现了必要程度的认知控制灵活的感觉运动转换。
Animals evolve to survive in their environment. Accordingly, a reasonable hypothesis is that brain evolution prioritises the processing of useful sensory information over complete representation of the surroundings. The superior colliculus or tectum is a brain area that processes the animal's surroundings and directs movements in space. Here, we review recent studies on the role of the superior colliculus to assess the validity of this “utility hypothesis”. We discuss how the response properties of collicular neurons vary across anatomical regions to capture ethologically relevant stimuli at a given portion of the sensory field. Next, we focus on the recent advances dissecting the role of defined types of sensory and motor neurons of the colliculus in prey capture. Finally, we discuss the recent literature describing how this ancient structure, with neural circuits over 500 million years old, implements the necessary degree of cognitive control for flexible sensorimotor transformation.
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