Sustained Posterior Negativity Catalogue, 2011-2023

The visual brain organizes and interprets images projected onto the retina, determining features of objects, depth, illumination, and pigmentation. The study's main aim is to understand when the brain decides to process these images, either always being active or only when necessary. There's also an exploration of the brain's sensitivity to changes, especially from alcohol consumption. Visual symmetry is the focal stimulus, as symmetrical patterns produce a measurable neural signal called the Sustained Posterior Negativity (SPN). The SPN, a bio-marker of perceptual organization, is studied in multiple packages: examining conditions for SPN generation, assessing attention shifts using fMRI, probing causal necessity using TMS, and analyzing alcohol's impact on perceptual organization. These data are made available via the Open Science Framework, under Related Resources. This is a complete archive of all Sustained Posterior Negativity (SPN) datasets recorded from the University of Liverpool. There are currently 6674 SPN recordings from 2215 participants. Data collected during the ESRC grant is combined with previous datasets from the lab.