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It seems like very few people understand let alone take the "mind body problem" seriously. If you could aim cameras on your head while you open up your skull to do brain surgery on yourself, would you then see yourself on the screen attached to the camera? Or would "you" merely be looking at the physical machinery serving the meontological you?
When the nerves send a signal to the brain to register pain, someone, or thing, must "experience" the pain. The central nervous system can send signals and register electrical phenomena but they can't do the heavy lifting of "experiencing" the pain or "seeing" (in a tactile, sensory sense) what the brain paints with the electromagnetic wavelengths of light transferred by the nervous system into electrical signals:
The nerve fibers that enter the brain from the eyes, ears, and skin look the same. Not only do they look identical, they transmit information using identical-looking [electrical] spikes. If you look at the inputs to the brain, you can't discern what they represent. Yet, vision feels like one thing and hearing feels like something different, and neither feels like spikes. When you look at a pastoral scene you don't sense the tat-tat-tat of electrical spikes entering your brain; you see hills and color and shadows.
"Qualia" is the name for how sensory inputs are perceived, how they feel. Qualia are puzzling. Given that all sensations are created by identical spikes, why does seeing feel different than touching? And why do some input spikes result in the sensation of pain and others don't? These may seem like silly questions, but if you imagine that the brain is sitting in the skull and its inputs are just spikes, then you can get a sense of the mystery. Where do our perceived sensations come from? The origin of qualia is considered one of the mysteries of consciousness.
Jeff Hawkins, A Thousand Brains: A New Theory of Intelligence, p. 138-139.
John