User profiles for Johannes Friedrich

Johannes Friedrich

- Verified email at columbia.edu - Cited by 2772

Johannes Friedrich

- Verified email at wri.org - Cited by 957

CaImAn an open source tool for scalable calcium imaging data analysis

A Giovannucci, J Friedrich, P Gunn, J Kalfon, BL Brown… - elife, 2019 - elifesciences.org
10.7554/eLife.38173.001 Advances in fluorescence microscopy enable monitoring larger
brain areas in-vivo with finer time resolution. The resulting data rates require reproducible …

Efficient and accurate extraction of in vivo calcium signals from microendoscopic video data

…, JC Jimenez, SQ Neufeld, A Giovannucci, J Friedrich… - elife, 2018 - elifesciences.org
10.7554/eLife.28728.001 In vivo calcium imaging through microendoscopic lenses enables
imaging of previously inaccessible neuronal populations deep within the brains of freely …

[HTML][HTML] Fast online deconvolution of calcium imaging data

J Friedrich, P Zhou, L Paninski - PLoS computational biology, 2017 - journals.plos.org
Fluorescent calcium indicators are a popular means for observing the spiking activity of
large neuronal populations, but extracting the activity of each neuron from raw fluorescence …

Bright and photostable chemigenetic indicators for extended in vivo voltage imaging

…, J Yu, J Zheng, JB Grimm, R Patel, J Friedrich… - Science, 2019 - science.org
Genetically encoded voltage indicators (GEVIs) enable monitoring of neuronal activity at high
spatial and temporal resolution. However, the utility of existing GEVIs has been limited by …

Prolonged detection of Zika virus RNA in urine samples during the ongoing Zika virus epidemic in Brazil

…, MD de Meneses, J Friedrich… - Journal of clinical …, 2016 - pubmed.ncbi.nlm.nih.gov
… 2 , Johannes Friedrich

[HTML][HTML] Community-based benchmarking improves spike rate inference from two-photon calcium imaging data

…, S Gerhard, RW Friedrich, J Friedrich… - PLoS computational …, 2018 - journals.plos.org
In recent years, two-photon calcium imaging has become a standard tool to probe the
function of neural circuits and to study computations in neuronal populations. However, the …

[PDF][PDF] A global database of power plants

L Byers, J Friedrich, R Hennig, A Kressig… - World Resources …, 2018 - 365lewuyou.com
This technical note explains how World Resources Institute (WRI) experts and their partners
created the Global Power Plant Database from official government data and independent …

Sex differences in Alzheimer's disease

…, H Schmidt, E Stoegmann, J Friedrich… - Neuropsychiatrie …, 2008 - europepmc.org
The prevalence of Alzheimer disease is higher in women than in men. In the age group 65-69
years 0.7% of women and 0.6% of men suffer from the disease with increasing …

FIOLA: an accelerated pipeline for fluorescence imaging online analysis

C Cai, C Dong, J Friedrich, M Rozsa… - Nature …, 2023 - nature.com
Optical microscopy methods such as calcium and voltage imaging enable fast activity readout
of large neuronal populations using light. However, the lack of corresponding advances in …

Onacid: Online analysis of calcium imaging data in real time

A Giovannucci, J Friedrich… - Advances in neural …, 2017 - proceedings.neurips.cc
Optical imaging methods using calcium indicators are critical for monitoring the activity of
large neuronal populations in vivo. Imaging experiments typically generate a large amount of …