We use electrophysiological, psychophysical, fMRI and computational methods. Motion is one of the basic visual dimensions, like luminance or colour. Further we look at motion responses in optic neuritis, and at speckle-evoked motion responses. Jedynak et al. 1994 . Do's and don'ts in Fourier analysis , Significance of steady-state responses .
Visual acuity is one of the most common ophthalmological examinations.
Glaucoma is one major reason for blindness in Germany. We examine electrophysiological and psychophysical tests for their viability to detect glaucoma in an early stage. Research is to a marked degree driven by methodology. Currently, we develop all new experiments on Macintosh computers, like the Freiburg Visual Acuity Test . For vision research experiments, the stimuli are now being based on the Apple Game Sprockets which makes things much easier.