Blind-sight is when the patient is legally blind but can perform tasks of everyday life as if they were able to see perfectly. Ramachandran believed this syndrome came from damage to the specific part of the visual cortex that corresponded with vision but also function. Therefore:
This daring interpretation carries with it an extraordinary implication – that only the new pathway is capable of conscious awareness (“I see this”), whereas the old pathway can us visual input for all kinds of behavior, even though the person is completely unaware of what is going on. Does it follow, then, that consciousness is a special property of the evolutionarily more recent visual cortex pathway? If so, why does this pathway have privileged access to the mind?
These questions are fare to ask because even with all of the technology today we are still unable to fully tell what is the cause of this syndrome. Some people with this syndrome are able to function by using the other senses to determine what objects are and what they should be doing with those objects. This ability is evident in the case of Diane. Ramachandran challenged her to grab a pencil out of his hand. She was able to do this task with unfailing ability to do so like she was able to see what she was doing the whole time. He also tested her by asking her the orientation of a mailing slot but just told her it was a slot and not what it was meant for. She was unable to identify the direction of the slot and got very frustrated with the doctors methods of figuring out what was wrong with her. Then he told her to mail a letter through the slot and she was able to do the process without any trouble.
The soul theorists would say that the soul was controlling her hand in order to make the letter go into the slot. For this to happen the soul would have to be controlling the body, would be tangible, be able to make decisions on its own, and have perception. Seeing as we have not yet proven that there is a soul, then the patients are not being controlled by a soul and there is no such thing as a soul.
The psychological theorists would say that the patients were in denial and having wishful thinking to complete the tasks. The patients would believe that they were able to see and would accomplish every day tasks even though they were not able to actually see. This of course is not possible because the patients are and always will be, unless they get surgery, blind and thus should not be able to “see” to accomplish tasks such as mailing a letter without trouble.
The Neurological Theorists would have said that Diane was functioning at less than forty hertz and thus her zombie was controlling the movements. Ramachandran was more interested in the Neurological Theory and thus did some more tests and proved that:
All this was verified by videotaping the approaching arm and conducting a frame-by-frame analysis of the tape. Again, it was though there were an unconscious “zombie” inside Diane carrying out complicated...