Perceiving where you can't see: Perceptual filling-in
Photo by Duangphorn Wiriya on Unsplash
What is it about?
We studied the perceptual experience of individuals with a central blind spot (scotoma) caused by a hole in the central retina (macula) when looking at a straight line. Patients often perceive distortions or a gap in the line, but many also complete the line perceptually, having a visual experience that is created at the level of the brain.
Why is it important?
Understanding how the brain can complete a visual experience in the presence of a retinal disease can explain why some patients are unaware that they have an eye disease. This also explains why they may not perceive the severity of their condition or why they should seek treatment.
The following have contributed to this page: Dr Walter Wittich