We recently stumbled across a problem with how many studies analyse pRF data. This data binning approach can lead to skewed or even spurious results. Our reanalysis shows that this was the case for our 2014 study investigating how attentional load affects pRF estimates. We therefore retracted that study. I wrote a post on my personal blog to explain this issue further. It serves as a reminder to researchers in cognitive neuroscience to use validation tests (e.g. random input data, ground truth simulations, etc.) for the complex analysis pipelines common to our field. A scientific exposition of this issue by Susanne Stoll is currently available as a preprint and will soon be submitted to review.