@article {Tolkiehn029108, author = {Marie Tolkiehn and Simon R. Schultz}, title = {Multi-Unit Activity contains information about spatial stimulus structure in mouse primary visual cortex}, elocation-id = {029108}, year = {2015}, doi = {10.1101/029108}, publisher = {Cold Spring Harbor Laboratory}, abstract = {This study investigates the spatial and directional tuning of Multi-Unit Activity (MUA) in mouse primary visual cortex and how MUA can reflect spatiotemporal structures contained in moving gratings. Analysis of multi-shank laminar electrophysiological recordings from mouse primary visual cortex indicates a directional preference for moving gratings around 180{\textdegree}, while preferred spatial frequency peaks around 0.02 cycles per degree, which is similar as reported in single-unit studies. Using only features from MUA, we further achieved a significant performance in decoding spatial frequency or direction of moving gratings, with average decoding performances of up to 58.54\% for 8 directions, and 44\% correctly identified spatial frequencies against chance level of 16.7\%.}, URL = {https://www.biorxiv.org/content/early/2015/10/14/029108}, eprint = {https://www.biorxiv.org/content/early/2015/10/14/029108.full.pdf}, journal = {bioRxiv} }