Now, one of my favourite topics:
If one toys with a television antenna then the reception will change, the same way as if one toys with our brains our consciousness changes.
Dustin, this is deeply,
deeply inaccurate.
If you vaporise an antenna, you lose all signal, the same as if you destroy a brain you lose all consciousness.
But that is as far as the analogy goes!
Specific physical brain defects, whether congenital, medical, or due to injury, map consistently to specific mental deficiencies.
Take the case of
anterograde amnesia: When the hippocampus is damaged, the subject is quite capable of performing daily tasks, but is no longer capable of forming long-term memories. Sufferers can engage in conversation, but will remember nothing of it an hour later.
Take the case of
split-brain studies: In severe cases of epilepsy, one possible treatment is the severing of the corpus callosum, a bridge between the two hemispheres of the brain. A side effect of this, though, is that the patient cannot name an object that is presented to their left field of view, even though they
can identify it. This is because the left eye is wired to the right hemisphere by the optic nerve (which was not severed, of course), but speech is controlled by the left hemisphere.
Or take the experiments that show (I will have to dig up some references for you) that conscious awareness of a decision to act comes some hundreds of milliseconds
after motor neurons start firing to perform the action.
To claim that
This is to say, our consciousness isn’t a direct result of our brains but our brains simply work as receivers.
Requires that we have a language receiver... or rather, a spoken language receiver and a written language receiver, for they are separate functions in the brain; several separate visual perception receivers (because we can trace the neural activity of visual perception through the brain); both a short-term and a long-term memory receiver; and so on and on.
And these "receivers", were they really such, can be tricked in rather odd ways for "receivers".
Take the
McCullough Effect as an example here. This is a class of optical illusions that produces a persistent change in your colour perception - lasting hours or even longer - based on whether lines are vertical or horizontal. Biologically, evolutionarily, this appears to be an automatic adjustment to your colour perception that works just fine in the real world. It works less well for Psych 101 students, and I would find it interesting to hear your explanation of this if our awareness of colour is somehow beamed into us from... elsewhere.
Finally, we now have the ability to monitor brain activity to millisecond resolution in living, conscious human subjects via NMR. We can see the cascades of brain activity, from one part of the brain to the next (each adjacent), when, for example, a visual cue is presented. We can have a test where the subject has to press one button or another depending on the visual cue, and we can track all the brain activity involved, starting with the optic nerve. There is, quite simply, no room left for the "receiver" theory. It's a "God of the gaps" claim, and while I can't say the gaps are entirely gone, they are far too small for such a theory to find any place in our understanding of the mind.