Stabilized images
Stabilized Images are images that remain immobile on the retina. Under natural viewing conditions, the eyes are always in motion. Small eye movements continually occur even when attempting to maintain steady gaze on a single point. Experiments by Riggs and Ratliff in the early 1950s established the remarkable finding that stabilized images result in the fading and disappearance of the visual percept.[1] Some think that this demonstrates adaptation of the sensory retinal cells, but it may have a more profound involvement in the functioning of neural cliques, cell assemblies (cf. Hebbian theory) and patterns for memory.
Images can be stabilized mechanically with optics mounted on the eye itself, or the image can be continually updated on a display to counteract the effects of eye movements. None of these methods allows perfect image stabilization leaving open the question of whether perfectly stabilized images disappear completely.[2]
References
- ↑ Riggs, L. A.; Ratliff, F.; Cornsweet, J. C.; Cornsweet, T. M. N. (1953). "The Disappearance of Steadily Fixated Visual Test Objects". Journal of the Optical Society of America 43 (6): 495. doi:10.1364/JOSA.43.000495. PMID 13070111.
- ↑ Arend, L. E.; Timberlake, G. T. (1986). "What is psychophysically perfect image stabilization? Do perfectly stabilized images always disappear?". Journal of the Optical Society of America. A, Optics and image science 3 (2): 235–41. PMID 3950797.