Organization of the inputs and outputs of the mouse superior colliculus.

Organization of the inputs and outputs of the mouse superior colliculus.
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DOI:
10.1038/s41467-021-24241-2
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发表时间:
2021-06-28
影响因子:
16.6
通讯作者:
Dong HW
Dong HW
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Benavidez NL;Bienkowski MS;Zhu M;Garcia LH;Fayzullina M;Gao L;Bowman I;Gou L;Khanjani N;Cotter KR;Korobkova L;Becerra M;Cao C;Song MY;Zhang B;Yamashita S;Tugangui AJ;Zingg B;Rose K;Lo D;Foster NN;Boesen T;Mun HS;Aquino S;Wickersham IR;Ascoli GA;Hintiryan H;Dong HW

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上级丘(SC)接受不同的和强大的皮质输入,以驱动一系列的认知和感觉运动行为。然而,它仍然不清楚如何下行皮层输入所产生的高阶关联区协调SC感觉运动网络,影响其输出。在这里,我们构建了一个全面的地图,所有的皮质-顶盖的预测和识别四个丘区与差异皮质输入:内侧(SC.m),中央(SC. cm),中央外侧(SC. cl)和外侧(SC.l)。此外,我们描绘了独特的全脑输入/输出组织的每个丘区,组装多个平行的皮质-顶盖-丘脑子网络,并确定在SC的躯体位置图,显示可区分的空间特性,从躯体位置图在新皮层和基底神经节。最后,我们表征这些皮质-顶盖-丘脑和皮质-基底节-丘脑子网络之间的相互作用。本研究为理解SC如何参与整合不同的感觉模态、将感觉信息转化为运动指令以及协调目标导向行为中的不同动作提供了结构基础。上级丘(SC)接受不同的皮质输入,以驱动许多行为。在这里,基于皮质-顶盖投射的全面映射,作者将上级丘细化为内侧、中央内侧、中央外侧和外侧区,并表征了每个区中神经元的输入-输出连接和形态,这些神经元在目标导向行为中起着SC的作用。
The superior colliculus (SC) receives diverse and robust cortical inputs to drive a range of cognitive and sensorimotor behaviors. However, it remains unclear how descending cortical input arising from higher-order associative areas coordinate with SC sensorimotor networks to influence its outputs. Here, we construct a comprehensive map of all cortico-tectal projections and identify four collicular zones with differential cortical inputs: medial (SC.m), centromedial (SC.cm), centrolateral (SC.cl) and lateral (SC.l). Further, we delineate the distinctive brain-wide input/output organization of each collicular zone, assemble multiple parallel cortico-tecto-thalamic subnetworks, and identify the somatotopic map in the SC that displays distinguishable spatial properties from the somatotopic maps in the neocortex and basal ganglia. Finally, we characterize interactions between those cortico-tecto-thalamic and cortico-basal ganglia-thalamic subnetworks. This study provides a structural basis for understanding how SC is involved in integrating different sensory modalities, translating sensory information to motor command, and coordinating different actions in goal-directed behaviors. The superior colliculus (SC) receives diverse cortical inputs to drive many behaviors. Here, based on comprehensive mapping of cortico-tectal projections, the authors refined the superior colliculus into medial, centromedial, centrolateral, and lateral zones, and characterized the input-output connectivity and morphology of neurons in each zone that serve the role of SC in goal-directed behaviors.
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