Hey all! Together with Stan Dehaene, we recently published a series of studies showing that, indeed, humans have sophisticated abilities at performing mental regression on scatterplots. Also, our data show that they do not minimize the vertical distance of the points to the fit but, instead, the orthogonal one (as in Deming regression). Here's the link to our publication: https://www.sciencedirect.com/science/article/pii/S001002852...