Journal article Open Access

Vision without Inversion of the Retinal Image

Stratton, George M.

Examined the theories of upright vision. Reports on some preliminary experiments conducted on the inverted visual field. One S was used to study whether the inversion of image is necessary for seeing things in an upright position. The S wore an optical contrivance to substitute an upright retinal position for the normal inverted one. The instrument was worn for 21.5 h over a period of three days. For the time that the instrument was not worn, the S was blindfolded. Initially all the images were inverted, things were seen in one way and thought about in a different way, because of memory and past experience. However, with practice the S learnt to adapt to the new visual field. On removal of the glasses, normal vision was restored. Concluded that difficulty in seeing things upright due to upright retinal images is due to previous experience. (PsycINFO Database Record (c) 2012 APA, all rights reserved)

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