作者: Karel Svoboda , Yoav Adam , Adam E. Cohen , Liam Paninski , Urs L. Böhm
DOI: 10.1016/J.CELREP.2021.108954
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摘要: Summary The ability to probe the membrane potential of multiple genetically defined neurons simultaneously would have a profound impact on neuroscience research. Genetically encoded voltage indicators are promising tool for this purpose, and recent developments achieved high signal-to-noise ratio in vivo with 1-photon fluorescence imaging. However, these recordings exhibit several sources noise signal extraction remains challenge. We present an improved pipeline, spike-guided penalized matrix decomposition-nonnegative factorization (SGPMD-NMF), which resolves supra- subthreshold voltages in vivo. method incorporates biophysical optical constraints. validate pipeline simultaneous patch-clamp from mouse layer 1 simulated composite datasets realistic noise. demonstrate applications hippocampus expressing paQuasAr3-s or SomArchon1, cortex SomArchon1 Voltron, zebrafish spines zArchon1.