Precise multimodal optical control of neural ensemble activity.
Precise multimodal optical control of neural ensemble activity.
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DOI:
10.1038/s41593-018-0139-8
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发表时间:
2018-06
影响因子:
25
通讯作者:
Adesnik H
中科院分区:
文献类型:
--
作者:
Mardinly AR;Oldenburg IA;Pégard NC;Sridharan S;Lyall EH;Chesnov K;Brohawn SG;Waller L;Adesnik H
Understanding brain function requires technologies that can control the activity of large populations of neurons with high fidelity in space and time. We developed a new multiphoton holographic approach to activate or suppress the activity of ensembles of cortical neurons with cellular resolution and sub-millisecond precision. Since existing opsins were inadequate, we engineered new soma-targeted (ST) optogenetic tools, ST-ChroME and IRES-ST-eGtACR1, optimized for multiphoton activation and suppression. Employing a three-dimensional all-optical read/write interface, we demonstrate the ability to photo-stimulate up to 50 neurons simultaneously distributed in three dimensions in a 550 × 550 × 100 μm volume of brain tissue. This new approach allows the synthesis and editing of complex neural activity patterns needed to gain insight into the principles of neural codes.
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