RE: Vision and Evolution (A Critique of Dawkins)
August 5, 2019 at 12:20 pm
(This post was last modified: August 5, 2019 at 12:37 pm by John 6IX Breezy.)
(August 5, 2019 at 12:12 pm)Gae Bolga Wrote: Go ahead, tell us how johnism refers to blind sight to explain vision without consciousness.
The things you’ve mentioned have nothing to do with evolution. They’re johnisms.
Blindsight occurs when the portions of the brain that give rise to the conscious experience of vision aren't working, but the sensory portion of the visual system are fine. However, because there are most likely projections from vision to other areas of the brain, such as affective regions, there are ways for visual information to bypass direct consciousness, but have an indirect influence on consciousness with things like intuitions and gut feelings.
To call it vision is a stretch; but so is to say they're blind. In any case, blindsight helps illustrate the issues vision runs into when it needs to evolve by gradual increments; let's hope the organism evolved those additional projections pathways.