PubMed Health⌕ Search

Biomedical subjects

J R Mentzer

Publications and source records attributed to J R Mentzer.

2 recordsLinked to original sources

Evidence that the colored shadow effect is retinal.

Polarized lenses were employed to present the images of the colored shadows effect separately to each eye. The phenomenon was perceived only when both images were viewed on the same retina, leading to the conclusion that the effect is entirely retinal in origin and does not involve the central nervous system.

Cerebral Cortex↗

Evidence that line illusions originate in the central nervous system.

Polarized lenses were employed to present the components of four line illusions separately to each eye. The phenomena were perceived even when both images were disparately presented, leading to the conclusion that the effect originates in the central nervous system and does not require the retina.

Brain↗