Is the “false projection phenomenon” (Jampolsky, 1970, 1978) an artefact?

Abstract

Jampolsky (1970, 1978) found that the light from the nasal visual field seen through the eyelid of one eye is seen in the direction of the temporal visual field when the other eye is occluded. We examined whether the “false projection” is an artefact of the light “leaking” into the occluded eye. Completely occluding one eye did not eliminated the “false projection”: four observers saw the light in the nasal field as coming from the temporal field in 89.4% of the trials whereas the light in the temporal field as coming from the temporal field in 95.6% of the trials. The phenomenon still needs an explanation.