fromderinside
Mazzie Daius
- Joined
- Oct 6, 2008
- Messages
- 15,945
- Basic Beliefs
- optimist
This clearly says what is happening. Light energy is converted, not recognized....This isomerization causes the Schiff-base nitrogen atom to move approximately 5 Å, assuming that the cyclohexane ring of the retinal group remains fixed. In essence, the light energy of a photon is converted into atomic motion. The change in atomic positions, like the binding of a ligand to other 7TM receptors, sets in train a series of events that lead to the closing of ion channels and the generation of a nerve impulse.....
Cells don't recognize molecules don't recognize. End this silliness.
That a cell has a substance that is sensitive to light of particular frequency is astounding.
That the cell processed that light input into a nerve impulse is astounding.
You don't think that the process of evolution would stop there do you?
Of course not.
Kolb and others have described neuronal arrangements that sort out these various transductions in to systems systems and tables of associations among the neurons and their orientations to lead to cortical processes that have been identified as color-orientation figures. In other words the magic is in the combinations of inputs via processing that leads to a resulting index table for color-physical orientation used to build perception. The source of mind is in the processing. Only we don't have to call it of mind any more. That is because we have the entire process laid at out through the effort of scientists who worked many decades to get there.