Monkey V1/V2 neuronal population response to drifting gratings with varying orientation and contrast

Correlated variability in the visual cortex is modulated by stimulus properties. The stimulus dependence of correlated variability impacts stimulus coding and is indicative of circuit structure. An affine model combining a multiplicative factor and an additive offset has been proposed to explain how correlated variability in primary visual cortex (V1) depends on stimulus orientations. However, whether the affine model could be extended to explain modulations by other stimulus variables or variability shared between two brain areas is unknown. Motivated by a simple neural circuit mechanism, we modified the affine model to better explain the contrast-dependence of neural variability shared within either primary or secondary visual cortex (V1 or V2) as well as the orientation-dependence of neural variability shared between V1 and V2. Our results bridge neural circuit mechanisms and statistical models, and provide a parsimonious explanation for the stimulus-dependence of correlated variabil..., , , # Monkey V1/V2 neuronal population response to drifting gratings with varying orientation and contrast

[https://doi.org/10.5061/dryad.h9w0vt4s0](https://doi.org/10.5061/dryad.h9w0vt4s0)

These folders contain 1) electrophysiology recordings from Monkey V1 and V2 in response to drift gratings with different orientations and contrast levels 2) parameters of statistical models fit to the recordings. For details of recordings and statistical models, please check the paper [https://www.biorxiv.org/content/10.1101/2023.12.19.572428v1. ](https://www.biorxiv.org/content/10.1101/2023.12.19.572428v1.)(Xia et al 2024)

## Description of the data and file structure

###### dataset/dataset1:

* 105l001p16_spikes.mat
* 106r001p26_spikes.mat
* 106r002p70_spikes.mat
* 107l002p67_spikes.mat
* 107l003p143_spikes.mat

This folder contains 5 .mat files. Each contains a session of simultaneously recorded neuronal population responses from V1 (recorded using Utah array) and V2 (recorded using tetrodes) to...