dlorde
Philosopher
- Joined
- Apr 20, 2007
- Messages
- 6,864
If a reasonably well-informed person looked at what we currently know about the brain and consciousness, what would they find?
That consciousness might be independent of the brain:
Evidence - none; despite decades of attempts to detect or demonstrate it.
Plausible suggestions for models - none; it appears not to be supportable within the known rules governing the universe.
That consciousness is dependent on the brain:
Evidence: a mountain of circumstantial evidence; multiple independent lines indicate: consciousness evolved as a function of the brain, develops as a neonate matures, is always associated with an active brain, degrades with disease of the brain, shows specific impairment with specific damage to the brain, can be modified in specific ways by specific chemical or electrical stimulation or suppression of brain activity, and becomes undetectable objectively and subjectively when a certain kind of brain activity is disrupted. Becomes permanently undetectable when brain activity ceases permanently.
Plausible suggestions for models: many, all with a common basis in neurophysiology, all within the known rules governing the universe.
I would suggest that this balance of evidence makes it evident beyond reasonable doubt that consciousness is a product of brain activity.
The alternative would seem as reasonable as suggesting my Excel spreadsheet continues calculating my financial status even after my PC is switched off, dismantled and scrapped.
That consciousness might be independent of the brain:
Evidence - none; despite decades of attempts to detect or demonstrate it.
Plausible suggestions for models - none; it appears not to be supportable within the known rules governing the universe.
That consciousness is dependent on the brain:
Evidence: a mountain of circumstantial evidence; multiple independent lines indicate: consciousness evolved as a function of the brain, develops as a neonate matures, is always associated with an active brain, degrades with disease of the brain, shows specific impairment with specific damage to the brain, can be modified in specific ways by specific chemical or electrical stimulation or suppression of brain activity, and becomes undetectable objectively and subjectively when a certain kind of brain activity is disrupted. Becomes permanently undetectable when brain activity ceases permanently.
Plausible suggestions for models: many, all with a common basis in neurophysiology, all within the known rules governing the universe.
I would suggest that this balance of evidence makes it evident beyond reasonable doubt that consciousness is a product of brain activity.
The alternative would seem as reasonable as suggesting my Excel spreadsheet continues calculating my financial status even after my PC is switched off, dismantled and scrapped.
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