Joseph Plateau, who invented the phenakistoscope, the first device capable of producing the illusion of a moving image from a sequence of still images, provided a definition of the persistence of vision in 1829. In his research into visual physiology, he described the effects of light stimuli and colors on the retina, determining their duration to equal one tenth of a second. Yet this value is not constant: it increases as the eye adapts to darkness, hence the sensation of movement which is characteristic of a film projection. Plateau thought that the eye sees at a rate of ten images per second and that, when they are superimposed, the brain links them into a single, continuous, moving image.
Index and Film i Samtidskonsten present a joint series of four evenings of experimental films at Index' gallery. The programs have been developed as an extension of the most recent issue of the cultural magazine OEI #69-70: On film, published in autumn 2015, with 496 pages about significant practices of the Swedish experimental film scene. The events are organized as part of the decentral festival Kortfilmsdagen on December 21, supported by the Swedish Film Institute.
Curated by Martin Grennberger and Daniel A. Swarthnas, the program shows a selection of important Swedish experimental films, contextualized by works of international film practitioners. Several of the films are being shown for the first time in Sweden.
