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the "the brain is a radio" analogy

Can you please describe some of the things in your consciousness?

Currently, a shelf with files on it.

Or rather a neural representation of this. You know, an evolutionarily-engineered, icon-based, 3D representation, corrected for blind-spot and blood vessel traces, assembled to suggest that there's a locus of observation just back from the eyes, and with perspective added. The representational process was designed to help my hunter-gatherer ancestors and other primates kill each other and have sex. Nowadays we use it to do science.
 
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I'm allowing for the concept of unconscious processing. It's applicable in this specific context - that of discussing whether the brain is actually creating consciousness.

As I pointed out earlier, neuroscientists have demonstrated that large amounts of higher order processing can be carried out unconsciously. Thus when you point to NCC being absolutely demonstrative of the brain producing consciousness this needs to be factored in. It weakens the argument.

It means that in order to still assert the brain basis for consciousness you need to either...

* alter the laws of physics, as Christof Koch is proposing
* travel a long way down the eliminative road, to pretty much ludicrous ends
* await a miracle



Certainly it is activating content of consciousness.

By this you are separating "consciousness" from its content?
 
The next step?! The next step!?

It's the biggest prize in science, man. You get to follow Darwin and Einstein into immortality. What could be more alluring for the illusionary sense of self?.
Even that you will find in the brain:
http://www.neurology.org/content/57/5/817.short

Scientists have been trying to work out "how" for ages. They haven't got there yet. And that's a fact.
.
Yes the next step, after being reasonably sure where to look, and what type of mechanism we are looking for (its in the brain). "haven't got there yet and that's a fact", other than that all the evidence points to the brain.
As far as I know, only one materialist has proposed a solution to the combination issue - Mike Graziano. And it's hardcore eliminativist to the nth degree.

So... you propose every philosopher and scientist who isn't a materialist just puts all research and theorizing on hold, apparently ad infinitum, until the materialists can work it out?

I put it to you that with such an approach Darwin and Einstein wouldn't be household names.

I made no such proposition. "Every philosopher and scientist who isn't a materialist" is free to waste their time as they wish.
 
By this you are separating "consciousness" from its content?
I'd say that consciousness appears to manifest as a vaguely etheric representational medium that also includes content. The term "awareness" might be better for some. This is how I'd try and describe that which materialists are having a hard time accounting for.

ETA I don't mean this last comment to be sarcastic BTW. This is how hard problem asserters usually describe what they want to see accounted for.

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Even that you will find in the brain:

Well, you'll find modules that construct the sense of it. Or are you saying there really is a homunculus?

Couldn't get the link to work, BTW, so apologies if I've missed something.

Yes the next step, after being reasonably sure where to look, and what type of mechanism we are looking for

What type of mechanism are we reasonably sure about?


other than that all the evidence points to the brain.

For the content of consciousness I'd say that's a fair statement.

I made no such proposition. "Every philosopher and scientist who isn't a materialist" is free to waste their time as they wish.

Well, I guess time will tell.

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I also can't really figure what Deepak Chopra is trying to say with this analogy.

But, essentially, he and his neuroscientist co-author, are trying to propose the case for a return to Idealism - the philosophical position that consciousness is inherent and everything else, including matter, appears within it.

Appears within it as in 'is emergent of it.' No I didn't get that the article was saying that (although there is no reason for me to doubt that he leans toward that belief) but I did get that the underlying observation was that how a thing is observed is not necessarily how that thing actually is.



Well, the Great Illusion, to term it thus, is that someone is experiencing consciousness. In the grip of this illusion the mind of course assumes that it is witnessing consciousness, but cannot experience subconsciousness.

How can 'someone' experience 'consciousness?'

If it is the brain experiencing consciousness then the better term to use would be 'something' is experiencing consciousness.

Otherwise - it is consciousness experiencing what it thinks of itself.

If the grip of the Great Illusion should slacken, then one new perspective that inevitably emerges is that it might be that the whole brain, or whole body, is actually conscious. It is simply that those other loops of consciousness are functionally disconnected from the one being labelled "me."

But this suggests that TGI is more along the lines of 'I am the brain' which might extend to 'I am the whole body' if the grip of TGI slackened.
Which leads me to think of the possibility that if the grip of TGI was fully released [death of the form] and the 'me' found itself to still 'be', then I would realize just what an illusion it was that I had experienced as 'a human being'.

But the one thing that would remain constant in that conceptual example is consciousness itself. The illusion therefore would not be consciousness but how consciousness 'thinks' of itself in relation to its situation.

At a functional level, it is clear that certain higher order brain functions seem to require actual consciousness. They can't take place in the dark, so to speak. Grasping higher levels of meaning, performing math which requires 2 or more separate operations, this kind of thing.

Sure. But it is still not known to what degree that the sub is involved with the surface consciousness.

Some problems which when awake are hard to work out but the experience of dreams help the surface consciousness find solutions. [As one example.]

However, it is quite possible that these only require consciousness because consciousness facilitates inter-brain communication.

Sharing maps. You are suggesting that consciousness became necessary because other brains existed in other bodies ...therefore... if this were not the case, consciousness would not have needed to be invented by the brain in order to accommodate the situation.


In addition consciousness allows processing to continue for longer. Subconscious processing typically lasts for only as long as action potentials remain at a neural level, so I understand.

But it is still unknown just how much sub is involved with surface processing.

Well, it would be great for materialists if we could actually find a "place in the brain" where consciousness takes place. We haven't done so and from what I understand it seems highly unlikely this is going to happen.

Materialists don't need to find an actual place in the brain where consciousness takes place in order to believe they are their brains, but if there were such a place it would be blatantly obvious by now - one would think so anyway.

It is enough that they can take advantage of the fact that consciousness at least is exhibited through the human population and it is easy enough to develop authoritative sounding theories which are given the green light by the materialist consensus in order to keep those populations following their lead, malleable to suggestion for the sake of directing the energy those populations have into something materialists can use to their immediate and long term advantage.

Science, culture, religion, gender, etc...politically motivated for materialist purposes. Authoritative leadership utilizing the material available...

The brain processes multiple strands of information concurrently. Certain brain modules monitor all this processing and decide which streams of information are important. Those deemed to be so can be broadcast around the brain, and it is this act of broadcasting that appears to be conscious. And this seems to be as close as anyone can get to determining just what consciousness is, at a neural, functional level.

Certain brain modules decide? Isn't the act of decision something consciousness [sub/surface] does?
Something thus 'appears to be conscious' but what is observing this process and deciding it only 'appears to be conscious' but isn't really conscious at all?

As far as I am aware, the only thing that can decide anything, is consciousness, therefore your statement is basically saying that consciousness acknowledges itself and then decides that it doesn't really exist at all. That its acknowledgment of self is an illusion.

[seems like the kind of thing a magic snake in a garden would say.] :)

As a tool for political purpose, such a concept would be very handy...like the saint in relation to the sinner only in this case, the more intelligent in relation to the less intelligent.


;)


This is why Dan Dennett famously termed consciousness "fame in the brain." The multiple contestants (processing streams) on Brain's Got Talent get assigned value according to their social usefulness, and the winner gets to be propagated all over the place, gets to go viral.

This is all [of course] an act of consciousness. The brain is an organ and isn't conscious without consciousness and cannot 'pick' anything until it is conscious, so therefore it has to first become conscious in order to start playing this game with itself - a game which amounts to choosing what identity it wants to for itself...based on personal preferences which apparently are influence by the environment it is within (the *jar* being the the human body) and how it can use that body to not only survive but do so as comfortably as possible, even using other brains in bodies to achieve this.

Yay 'the winner'.

:)

For sure... the brain will reinforce whatever beliefs it needs to help it best accomplish its tasks.

But you know that when I used the term 'ghost in the machine' I was referring to consciousness in relation to it not being an emergent property of the brain.

So your propensity to turn that back into an expression uttered through the belief that you are the brain shows that you like to argue from the position of belief...as verified in the next sentence...

Personally, I always liked Materialism because it suits my temperament. I'm practical. I used to work in construction. I like things to be nice and solid. So mostly I'm a Materialist, as this perspective appeals to my sense of values.



But then there is another side where I like to challenge the status quo, so it's good to sometimes be an Idealist also.

I think we can both agree that when it comes to belief, you will side with the materialists.
For me - I don't self identify with either to the point where belief becomes the focus and underlying motive of any argument...both idealism and materialism are complimentary when viewed without belief systems being involved.

The brain will merrily reinforce whichever belief it feels best suits its illusory sense of personal selfhood. Until sufficient evidence comes along to sway the see-saw one way or the other. And that hasn't remotely happened yet.

Actually consciousness doesn't need belief in order to have a sense of self-hood. It is by its very nature, a 'self' already. Belief just adds unnecessary conflict to that sense of self in relation to other individuals and the environment in general.

Your belief that personal self-hood is an illusion the brain merrily reinforces may in itself be the very thing used for the purpose of surviving and attaining and maintaining the particular lifestyle you are experiencing.
 
I'd say that consciousness appears to manifest as a vaguely etheric representational medium that also includes content. The term "awareness" might be better for some. This is how I'd try and describe that which materialists are having a hard time accounting for.

ETA I don't mean this last comment to be sarcastic BTW. This is how hard problem asserters usually describe what they want to see accounted for.

sent using rogue memeplex 1.1 via Sony and Tapatalk


"Consciousness appears to manifest as a vaguely etheric representational medium"????

Could you clarify that a bit?

Obviously you do believe consciousness exists separate from its content. In this I do not agree. If you could clarify what you mean by the above phrase, and what evidences you have for this etheric representational medium, it would help.

"Awareness" is a term which obviously refers to the brain processing sensory input. Even under conditions of sensory deprivation the sensations of the beating heart, pulsating arteries, and spontaneous activity of various sensory receptors generates neural activity. In quiet moments when you are "alone with your thoughts" your thoughts are there and they are neural activity.

Perhaps you have a different definition of "awareness"?
 
Well, you'll find modules that construct the sense of it. Or are you saying there really is a homunculus?

Couldn't get the link to work, BTW, so apologies if I've missed something.

What type of mechanism are we reasonably sure about?

For the content of consciousness I'd say that's a fair statement.

Well, I guess time will tell.

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http://m.neurology.org/content/57/5/817.short

Perhaps that will work. It's a study of frontal dementia victims whose sense of self is altered by damage to their frontal lobes.

We are quite sure consciousness is a manifestation of brain activity so the "how" will involve neurons and synapses.

Please elaborate on the non-content portion of consciousness. How are you aware that it exists? From my own experience I am not aware of any part of my consciousness which is not "content" and not directly referable to the activity of my brain.

I await your explanation of what that "non-content" might be and how you might demonstrate it to me.
 
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"Consciousness appears to manifest as a vaguely etheric representational medium"????

Could you clarify that a bit?

Well, I'm trying to describe the core of subjectivity and language is limited in it's ability. It can certainly be that you don't find it accurate or useful. I am doing my best. There is this sense of a certain specific ethereal relationship between me and a thing of which I'm aware, and this feels like consciousness.

And, as I mentioned before, it is the widespread belief in this property that leads to the HPC.

Obviously you do believe consciousness exists separate from its content.

I'm not sure. I'm saying it's possible.

"Awareness" is a term which obviously refers to the brain processing sensory input.

Even unconscious processing? Is this awareness too?
 
We are quite sure consciousness is a manifestation of brain activity so the "how" will involve neurons and synapses.

Sorry. You seemed to me to imply before that you were getting closer in than this.

BTW, why do you say "we?" When people expand their own opinion to be that of apparently all people in the field, it usually means that actually they are not remotely sure of it, in my experience. You must be aware that not all neuroscientists are materialists, so why do you say we? Do you mean all neuroscientists, then, who are materialists, because such a position would be implicit anyway? I'm intrigued as to why you wrote "we". Are you not so sure in your own ideas?

Anyway... we know that consciousness is associated with the broadcasting function of the brain. We know that an unconscious processing stream acquires a threshold signal strength and is then propagated across the prefrontal and parietal lobes, like a snowball becoming an avalanche. We know this and have done so for a decade. It's clear scientists have been working on the HPC for quite a while. They seem to be as close in a fMRI, EEG and MEG will allow them. And the reality is that it's still a mystery.

I think it's time to start considering other options.

From my own experience I am not aware of any part of my consciousness which is not "content" and not directly referable to the activity of my brain.

Yet you don't know how the brain creates consciousness, so I'd say that statement is somewhat hasty.
 
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I await your explanation of what that "non-content" might be and how you might demonstrate it to me.

There is this sense of "communion", that's the only word that comes to mind, when I simply sit and observe some object with utter passivity. It exists entirely without any descriptive properties being added to it. It appears to be the essence of consciousness. A sense of "presence."

Mike Graziano hacks into this in his Attention Schema Theory of consciousness, recognising it as the descriptive essence of the HPC, and taking it apart on this purely descriptive level. He proposes that the brain constructs a model of attention, as an evolutionarily-derived function for understanding others, and then applies it to itself. But I am not convinced.
 
Sorry. You seemed to me to imply before that you were getting closer in than this.

BTW, why do you say "we?" When people expand their own opinion to be that of apparently all people in the field, it usually means that actually they are not remotely sure of it, in my experience. You must be aware that not all neuroscientists are materialists, so why do you say we? Do you mean all neuroscientists, then, who are materialists, because such a position would be implicit anyway? I'm intrigued as to why you wrote "we". Are you not so sure in your own ideas?

Anyway... we know that consciousness is associated with the broadcasting function of the brain. We know that an unconscious processing stream acquires a threshold signal strength and is then propagated across the prefrontal and parietal lobes, like a snowball becoming an avalanche. We know this and have done so for a decade. It's clear scientists have been working on the HPC for quite a while. They seem to be as close in a fMRI, EEG and MEG will allow them. And the reality is that it's still a mystery.

I think it's time to start considering other options.



Yet you don't know how the brain creates consciousness, so I'd say that statement is somewhat hasty.


By "we" I intended to mean "humanity". Science is a group effort. Progress is tediously slow. It is not a mystery at all that the brain produces consciousness, the mystery is "how" it does this. Again, progress is likely to be tediously slow, that is the nature of scientific progress, This does not justify abandoning all the information we already have.
 
There is this sense of "communion", that's the only word that comes to mind, when I simply sit and observe some object with utter passivity. It exists entirely without any descriptive properties being added to it. It appears to be the essence of consciousness. A sense of "presence."



Mike Graziano hacks into this in his Attention Schema Theory of consciousness, recognising it as the descriptive essence of the HPC, and taking it apart on this purely descriptive level. He proposes that the brain constructs a model of attention, as an evolutionarily-derived function for understanding others, and then applies it to itself. But I am not convinced.


That is a very promising description you have provided of Graziano's ideas.

A "sense of communion" is a feeling generated by the neural circuits of your brain, in the same way that electrical microstimulation can generate a "sense of floating above your own body".
The object you observe in utter passivity is a construct of your brain and sensory organs (which corresponds with an object in front of you). The object itself exists but your perception of it is the result of your brain activity.

By "consciousness" do you mean simply existence? I'm still trying to understand how you are aware of and what you mean by, consciousness as separate from its content.
 
By "we" I intended to mean "humanity". Science is a group effort. Progress is tediously slow. It is not a mystery at all that the brain produces consciousness, the mystery is "how" it does this. Again, progress is likely to be tediously slow, that is the nature of scientific progress, This does not justify abandoning all the information we already have.

Now you're doing the old False Dichotomy routine, MuDPhuD. Even the most rabid Idealist does not suggest abandoning all we have. There are middle paths.

You write "It is not a mystery at all that the brain produces consciousness, the mystery is "how" it does this." I put it to you that few people from a hard science background would be too willing to go along with such a statement.

Because in this situation "how" is the very guts of it. We have P3 waves slow-moving 1/3rd of a second behind stimulus on EEG, we have subliminal processing amplified into a snowballing wave invading the parietal lobes, propagating left, right and centre. We know neural signatures of consciousness. We know threshold amplitudes. But we still don't know how.

How becomes even more important when we already have so much knowledge. How starts to weaken the materialist position because we've tracked so much but we still can't work it out. In this situation, how starts to diminish the value of the position that the brain must be creating consciousness.
 
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That is a very promising description you have provided of Graziano's ideas.

I found it a good book. I'm not convinced, not least because for me Graziano doesn't really devote enough time to his actual theory, just provides an excellent background to the area.

A "sense of communion" is a feeling generated by the neural circuits of your brain, in the same way that electrical microstimulation can generate a "sense of floating above your own body".

Electrically stimulating the angular gyrus or tpj may actually cause the whole locus of perception to shift. The brain may just be assembling neural representations to suggest one constant locus.

Anyway, I'd be happy to believe that this sense of communion or presence was entirely brain derived if we explained how the brain creates consciousness. I wouldn't have a problem with it. We're not there yet.


By "consciousness" do you mean simply existence? I'm still trying to understand how you are aware of and what you mean by, consciousness as separate from its content.

I don't know what consciousness would be separate from its content. Something yogis talk about maybe. Nevertheless it seems that the two could be separated, that's how it feels to me.

You say that everything you experience is content. Yet you have a sense of someone experiencing... no? Is that content?
 
I await your explanation of what that "non-content" might be and how you might demonstrate it to me.

I'm capable of making the distinction between being conscious and the contents of consciousness. Being conscious is the simple yet often overlooked noting that I am conscious and that I exist as awareness by the simple act of 'being aware that I am aware' - there is no object or content of awareness needed during this observation. I realize the danger of bringing this up here in this forum due to the perception of dreadful 'navel gazing'.
It does have a practical value . . . I notice that as I fall asleep my thoughts and perceptions become random and farther apart - with gaps of pure awareness - and I will simulate this to aid in falling asleep.
I am not suggesting this 'pure awareness' does not have neural correlates - or is not contingent on a brain. I am only suggesting that the distinction between consciousness and the contents of consciousness can be made subjectively, and neurological support of pure awareness should be discoverable.
 

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