Recordings of 10k neurons in V1 during drifting gratings

This data accompanies the following paper:

Robustness of spike deconvolution for calcium imaging of neural spiking
Marius Pachitariu, Carsen Stringer, Kenneth D. Harris
bioRxiv 156786; doi:

where it is used to assess the performance of spike deconvolution algorithms. The code repository to reproduce the analyses in the paper is uploaded at

We recorded ~10,000 neurons simultaneously at 2.5Hz using calcium imaging. Visual stimuli were shown at approximately 1 Hz, with randomized inter-stimulus intervals. The stimuli were drifting gratings with 8 directions, 4 spatial frequencies and 3 temporal frequencies. Blank stimuli (gray screen) were also interleaved.