On 11 December 2013 10:24, meekerdb <meeke...@verizon.net> wrote:

>  On 12/10/2013 11:54 AM, John Clark wrote:
> On Sun, Dec 8, 2013 at 7:33 PM, LizR <lizj...@gmail.com> wrote:
>   > One needs a rigorous definition of what consciousness is, to start
>> with,
>  Examples are usually preferable to definitions.
>  > and then a theory that explains all its observed features, and makes
>> testable predictions.
>  But that's the beauty of consciousness theories, we can detect
> consciousness only in ourselves so there are no observed features that a
> consciousness theory must explain,
> Actually there are some observed features.  A sharp blow to the head can
> create a gap in ones consciousness.  Imbibing various substances that can
> cross the blood/brain barrier have somewhat predictable effects.  Localized
> electrical stimulation of the brain produces repeatable effects, both in
> consciousness and somatic.
> If you're assuming there is more to consciousness than the sum of our
thoughts, experiences, memories, etc - then this *may* be a description of
features of the contents of consciousness, rather than of the thing itself.

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