Adaptive processing and perceptual learning in visual cortical areas V1 and V4

Neurons in visual cortical areas primary visual cortex (V1) and V4 are adaptive processors, influenced by perceptual task. This is reflected in their ability to segment the visual scene into task-relevant and task-irrelevant stimulus components and by changing their tuning to task-relevant stimulus properties according to the current top-down instruction. Differences between the information represented in each area were seen. While V1 represented detailed stimulus characteristics, V4 filtered the input from V1 to carry the binary information required for the two-alternative judgement task. Neurons in V1 were activated at locations where the behaviorally relevant stimulus was placed well outside the grating-mapped receptive field. By systematically following the development of the task-dependent signals over the course of perceptual learning, we found that neuronal selectivity for task-relevant information was initially seen in V4 and, over a period of weeks, subsequently in V1. Once the..., This is raw elecrophysiological data (unsorted spike timestamps and waveforms, and LFPs) recorded from two different animals, The data are in .plx format. Recorded with Plexon amplifiers and Blackrock
To open these .plx files you can use the open access code for either Matlab, Python or C++ added in the data , # Adaptive processing and perceptual learning in visual cortical areas V1 and V4

[https://doi.org/10.5061/dryad.4qrfj6qdb](https://doi.org/10.5061/dryad.4qrfj6qdb)

## Description of the data and file structure

Files were recorded from visual area V1 in Monkey C. Bisection task correspond to the first 'x' trials followed by Vernier task.

The number of bisection trials per file are the \"x\" values on the right of each file name.

bisver_170905100_mrg.pl2 / x = 807 bisection trials

bisver_170906100_mrg.pl2 / x = 587 bisection trials

bisver_170907100_mrg.pl2 / x = 668 bisection trials

bisver_170908100_mrg.pl2 / x = 545 bisection trials

These files were recorded from visual area V4 in Monkey C. Bisection task correspond to the first 'x' trials followed by Vernier task.

The number of bisection trials per file are the \"x\" values on the right of each file name.

bisver170808100_mrg.plx / x = 755 bisection trials

bisver170809100_mrg.plx / x = 983 bisection trials

bisver170810100_...