On Tue, 23 Jul 2019 at 11:39, Bruce Kellett <bhkellet...@gmail.com> wrote:

> On Tue, Jul 23, 2019 at 11:19 AM Stathis Papaioannou <stath...@gmail.com>
> wrote:
>
>> On Tue, 23 Jul 2019 at 11:13, Bruce Kellett <bhkellet...@gmail.com>
>> wrote:
>>
>>> On Tue, Jul 23, 2019 at 10:41 AM Stathis Papaioannou <stath...@gmail.com>
>>> wrote:
>>>
>>>> On Tue, 23 Jul 2019 at 08:55, Bruce Kellett <bhkellet...@gmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>>>  I am reminded of Kafka's novella, 'Metamorphosis': "When Gregor
>>>>> Samsa awoke one morning from troubled dreams, he found himself changed 
>>>>> into
>>>>> a monstrous cockroach in his bed."......
>>>>>
>>>>> Is the person just the brain, or is there more to it?
>>>>>
>>>>
>>>> If you radically changed your body, you would also change the inputs to
>>>> your brain. So we can maintain the theory that the sense of self comes
>>>> directly from the brain.
>>>>
>>>
>>> You might wish to maintain this theory, but you, yourself, have directly
>>> contradicted it by saying that our sense of self depends on the inputs to
>>> the brain. The qualification "directly" adds nothing but obfuscation.
>>>
>>
>> The inputs to the brain affect the brain state, and our experiences
>> depend on the brain state. If a particular brain state could be implemented
>> in the absence of inputs, the experience would be the same as if the inputs
>> were there. Do you disagree with this?
>>
>
> Yes. Experience is not a static unity -- it depends on the inputs. So a
> brain state in the absence of inputs would not experience anything. Sensory
> deprivation experiments show that in the absence of external sensory
> inputs, the brain tends to go into a looping mode. But then, we cannot
> separate the brain from inputs coming from the body -- heartbeat,
> breathing, contact with the floor, and so on. So the brain does not exist
> in the absence of inputs. Experience depends on the passage of time, marked
> by some change or the other. And the change in inputs is the only relevant
> measure of the passage of time. Remove these and you have a non-conscious,
> comatose, state.
>

The inputs serve to put the brain in a particular state, but the brain
could go into the same state without the inputs. This can be a practical
problem in patients with schizophrenia: the may hear voices and are
convinced that the voices are real, to the point where they might assault
someone because of what they believe he said.


-- 
Stathis Papaioannou

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