Cite as: Toskovic O, 2006, "The geometry of visual space as a result of eye position shift" Perception 35 ECVP Abstract Supplement The geometry of visual space as a result of eye position shift O Toskovic In previous research it was shown that physically shorter distances towards the zenith were seen as equal to physically longer distances towards the horizon. It remained unclear whether this difference in distance estimates is a consequence of a shift in the position of the body, of the head, or of the eyes. The aim here was to investigate whether the elliptical shape of perceived space is a consequence of an eye-position shift. The task of seventeen participants was to equalise the distances of three rectangular stimuli, in three directions (horizontal, tilted 12.7, and tilted 24.26 relative to the horizon). Participants performed their estimates sitting on the floor, in a dark room, with their heads in a chin-rest, in order to prevent head and body movements. Results showed that (i) horizontal estimates were equal to standard, (ii) estimates in the 12.7 direction were shorter than the standard, and (iii) estimates in the 24.26 direction were longer than the standard. These results suggest that, as the eyes shift upwards, perceived space is elongated at first and then compressed, which conflicts with earlier results. These web-based abstracts are provided for ease of seaching and access, but certain aspects (such as as mathematics) may not appear in their optimum form. For the final published version of this abstract,