PSYCHOPHYSICS W. Duch, Department of Computer Methods, Nicholas Copernicus University In the XIX century and earlier such physicists as Newton, Mayer, Hooke, Helmholtz and Mach were actively engaged in the research on psychophysics, trying to relate psychological sensations to intensities of physical stimuli. Computational physics allows to simulate complex neural processes giving a chance to answer not only the original psychophysical questions but also to create models of mind. These lecture notes review relevant fields of science sketching the path from the brain, or computational neurosciences, to the mind, or cognitive sciences.