小柯机器人

18hz下皮层区域神经活动的中尺度体积光场成像
2023-02-28 22:45

美国洛克菲勒大学Alipasha Vaziri团队近期取得重要工作进展,他们研究开发了18hz下皮层区域神经活动的中尺度体积光场(MesoLF)成像解决方案。相关研究成果2023年2月23日在线发表于《自然—方法学》杂志上。

据介绍,介观的各种实现为哺乳动物大脑中跨多毫米视野的钙成像提供了光学通路,然而,由于对散射脑组织成像的方法通常基于顺序采集,因此在这种视野内以接近同时的体积方式捕获神经元群体的活动仍然具有挑战性。

研究人员提出了一种模块化的中尺度光场(MesoLF)成像硬件和软件解决方案,该解决方案允许从体积为4×0.2mm,位于350μm深度,每秒18个体积,有效体素速率约为每秒40兆体素。

总之,利用这一光学设计和计算方法,研究人员通过工作站级计算资源在小鼠的多个皮层区域记录了约10000个神经元。

附:英文原文

Title: Mesoscale volumetric light-field (MesoLF) imaging of neuroactivity across cortical areas at 18 Hz

Author: Nbauer, Tobias, Zhang, Yuanlong, Kim, Hyewon, Vaziri, Alipasha

Issue&Volume: 2023-02-23

Abstract: Various implementations of mesoscopes provide optical access for calcium imaging across multi-millimeter fields of view in the mammalian brain; however, capturing the activity of the neuronal population within such fields of view near-simultaneously and in a volumetric fashion has remained challenging as approaches for imaging scattering brain tissues typically are based on sequential acquisition. Here we present a modular, mesoscale light-field (MesoLF) imaging hardware and software solution that allows recording from thousands of neurons within volumes of 4×0.2mm, located at up to 350μm depth in the mouse cortex, at 18 volumes per second and an effective voxel rate of ~40 megavoxels per second. Using our optical design and computational approach we show recording of ~10,000 neurons across multiple cortical areas in mice using workstation-grade computing resources.

DOI: 10.1038/s41592-023-01789-z

Source: https://www.nature.com/articles/s41592-023-01789-z

Nature Methods:《自然—方法学》,创刊于2004年。隶属于施普林格·自然出版集团,最新IF:47.99
官方网址:https://www.nature.com/nmeth/
投稿链接:https://mts-nmeth.nature.com/cgi-bin/main.plex


本期文章:《自然—方法学》:Online/在线发表

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