1. Topography of the layer of rods and cones in the human retina;Østerberg;Acta ophthal. Suppl.,1935
2. Reaction time to retinal stimulation with special reference to time lost in conduction through nerve centers;Poffenberger;Archs Psychol. N.Y.,1912
3. Signal luminance and position effects in human reaction time;Rains;Vision Res.,1964