Minds must be able to do something special, have some sort of value-added that living creatures without it are necessarily lacking. — Olivier5
We ourselves, as physical organisms, are part of [the natural] universe, composed of the same basic elements as everything else, and recent advances in molecular biology have greatly increased our understanding of the physical and chemical basis of life. Since our mental lives evidently depend on our existence as physical organisms, especially on the functioning of our central nervous systems, it seems natural to think that the physical sciences can in principle provide the basis for an explanation of the mental aspects of reality as well — that physics can aspire finally to be a theory of everything.
However, I believe this possibility is ruled out by the conditions that have defined the physical sciences from the beginning. The physical sciences can describe organisms like ourselves as parts of the objective spatio-temporal order – our structure and behavior in space and time – but they cannot describe the subjective experiences of such organisms or how the world appears to their different particular points of view. There can be a purely physical description of the neurophysiological processes that give rise to an experience, and also of the physical behavior that is typically associated with it, but such a description, however complete, will leave out the subjective essence of the experience – how it is from the point of view of its subject — without which it would not be a conscious experience at all.
So the physical sciences, in spite of their extraordinary success in their own domain, necessarily leave an important aspect of nature unexplained. Further, since the mental arises through the development of animal organisms, the nature of those organisms cannot be fully understood through the physical sciences alone. Finally, since the long process of biological evolution is responsible for the existence of conscious organisms, and since a purely physical process cannot explain their existence, it follows that biological evolution must be more than just a physical process, and the theory of evolution, if it is to explain the existence of conscious life, must become more than just a physical theory.
My hypothesis is that the mind is simply the pilot in the creature. It follows that the greater the freedom of movement of the creature, the greater the need for a mind. A plant moves less than an animal, and has far less need for a mind than an animal. A vegetative animal (e.g. a corral remaining in the same place, or any bivalve mollusk attached to its rock) has less need for a mind than an octopus. — Olivier5
Some folk hereabouts seem to think that we cannot acquire knowledge of our own conscious experience, simply because we must use it as a means for doing so. — creativesoul
Naturalism is the thesis that everything belongs to the world of nature and can be studied by the methods appropriate to studying that world (that is, the methods of the natural sciences). Husserl argued that the study of consciousness must actually be very different from the study of nature. For him, phenomenology does not proceed from the collection of large amounts of data and to a general theory beyond the data itself, as in the scientific method of induction. Rather, it aims to look at particular examples without theoretical presuppositions (such as the phenomena of intentionality, of love, of two hands touching each other, and so forth), before then discerning what is essential and necessary to these experiences. — IEP
[Naturalism] sees only nature, and primarily physical nature. Whatever is is either itself physical, belonging to the unified totality of physical nature, or it is in fact psychical, but then merely as a variable dependent on the physical, at best a secondary “parallel accomplishment”. "Whatever is" belongs to psychophysical nature, which is to say that it is univocally determined by rigid laws.
What is taken for granted in natural thinking is the possibility of cognition. Constantly busy producing results, advancing from discovery to discovery in newer and newer branches of science, natural thinking finds no occasion to raise the question of the possibility of cognition as such… Cognition is a fact in nature.
It lingers in the discomfort we might feel when we affirm phenomenal consciousness and then realize what that means about the universe. — frank
IOW, yes, the concept of qualia is partly rooted in Descartes, but so is the notion that there is no qualia.
What i think we're looking for is some kind of synthesis. — frank
Before Descartes many philosophers did not approach the universe with a mental-physical dichotomy in mind. In particular, they had a much narrower picture of the mental domain, and a broader, more differentiated picture of the rest of the universe. Mental capacities were associated with what they called intellect: the ability to understand universal principles and make judgments of the sort we express in language. Descartes expanded the definition of the mental domain to include things that philosophers had previously not considered mental at all such as the experience of pain. The Greek philosopher Aristotle (384-322 BCE) and his medieval followers, for instance, took pain, perception, action, and related phenomena to be neither mental nor physical in Descartes' sense, and they did not take the physical universe to be a vast, undifferentiated sea of physical material. The universe instead consisted of physical materials that were structured or organized in various ways, and although living things were made out of the same materials as everything else, those materials were structured or organized in ways that conferred on them capacities not had by inanimate objects. These include capacities that could be described and explained using a mental vocabulary, but also capacities that could be described and explained using a nonmental vocabulary - not the vocabulary of fundamental physics, but a vocabulary that occupied a position between fundamental physics and psychological discourse. — Philosophy of Mind: A Comprehensive Introduction, p24 - William Jaworski
I submit for your esteemed consideration, we cannot use reason to acquire knowledge of consciousness, because reason invented it.
I discussed this previously here. Cartesian dualism has no practical application in everyday life or in scientific inquiry. Concepts like qualia, p-zombies and the hard problem are purely philosophical inventions that derive from Cartesian dualism.
— Andrew M
That's not entirely true, since ancient skepticism and idealism proposed similar issues based on the problem of perception. — Marchesk
Substance dualism has a venerable history. It was endorsed in the ancient world by the Greek philosopher Plato (427-347 BCE) and his followers, and by Neoplatonists during the middle ages. From the seventeenth century until the twentieth, moreover, it was probably the most popular mind-body theory. — Philosophy of Mind: A Comprehensive Introduction, p35 - William Jaworski
Yes. Erring on the side of neither dispenses with the inherently inadequate dichotomies altogether. — creativesoul
I think the divisions themselves, as understood in their Cartesian sense, are misleading and unnecessary. They don't arise in normal communication
— Andrew M
However, I'm hesitant if all experience has internal and external components, physical and non physical components; something to be connected and a creature capable of making connections, where the connections are the neither part but that which is being connected is one or the other(or both in the case of metacognitive endeavors).
So, while the subjective/objective dichotomy can be thrown out simply by granting subjectivism in it's entirety, I'm wondering about whether or not the internal/external and physical/non physical dichotomies can be equally dispensed with. — creativesoul
The physical sciences can describe organisms like ourselves as parts of the objective spatio-temporal order – our structure and behavior in space and time – but they cannot describe the subjective experiences of such organisms or how the world appears to their different particular points of view. There can be a purely physical description of the neurophysiological processes that give rise to an experience, and also of the physical behavior that is typically associated with it, but such a description, however complete, will leave out the subjective essence of the experience – how it is from the point of view of its subject — without which it would not be a conscious experience at all.
But note that Descartes posited a conception of mind which included not just the intellect, as with Plato, but also pain and perception (see the above quote to Frank). — Andrew M
A prima facie example of a problem created by language use. — creativesoul
What does the pronoun ('it') refer to? — creativesoul
...but such a description, however complete, will leave out the subjective essence of the experience – how it is from the point of view of its subject — without which it would not be a conscious experience at all....
...What noun does the pronoun "it" replace in the last part above, particularly the last two instances of it's use? What does the pronoun refer to? What singular entity does that pronoun pick out to the exclusion of all else? — creativesoul
What evidence do you have that that's what you did? You learnt to use 'red' at, what, two, three? Are you suggesting you have a clear memory of the method you used? — Isaac
Be reasonable. What use is it asking the question if the reply was going to be: Actually, you don't remember. — khaled
Basic algebra tells you that X can take on any value including Y or Z. Point is that it seemed like something. I later call it "red" or "pain" or whatever. — khaled
I'm trying to argue that they are not as you, seconds later, think they were. — Isaac
Agreed. — khaled
As far as I can tell, the working memory and sensory memory are the source of experiences. As in if they stopped funcitoning, you wouldn't have any experiences at all. What you're saying here is that I had the experience Y first which was then altered to a different experience X due to built in inaccuracies. That doesn't make sense, what is this experience Y? All I ever see is the experience X. There is no "more accurate" experience Y that preceded it. — khaled
If I am measuring something and it turns out to be 5cm you cannot make the claim "Actually, you made a more accurate measurement which was then changed to 5cm +- 0.1cm due to the built in inaccuracy of the ruler". — khaled
Conscious experience is invoked in AI, physicalism, the limits of knowledge... — Isaac
Can't AI also have a certain experience then reach for the word "red" to describe it? — khaled
At no point do I have a 'feeling of a colour' which I then select the name for from some internal pantone chart. — Isaac
But you said that you experience something, then reach for the word "red" to describe it. I am asking how we can compare these "somethings". — khaled
That requires that when you say it seems like X you're right - ie it could not be the alternatives Y and Z. — Isaac
I thought you might have, you know, read some actual research before just randomly deciding how the cognitive development of language works — Isaac
We're both guessing how it felt from evidence - mine neurological (statistical likelihoods), your is inferential (traces of working memory re-firing of neurons). Neither have good access, neither have private access. — Isaac
Yes I can, if I've got good evidence that that's what's happening. Why would I not? — Isaac
Actually, you made a more accurate measurement which was then changed to — khaled
p-zombies are impossible — Isaac
panpsychism is wrong, and physicalism is fine — Isaac
If it is then AI is definitely conscious because it can reach fr the word 'red' in response to some state of it's neural network. — Isaac
...He saying, you can give a neurophysiological account of an experience (e.g. 'pain is the firing of c-fibers') but the experience of pain is much more than a descriptive account of the physiology of it.
I don't understand what is obscure or difficult about this idea. — Wayfarer
Michel Bitbol. He has some very interesting and relevant insights into this issue - see his paper It is never known but it is the knower. — Wayfarer
you can't guess what fear feels like from a first person view. This "what fear feels like" is qualia. — khaled
we just have this one experience of what's going on right now. — khaled
panpsychism is wrong, and physicalism is fine — Isaac
Don't see how either of those follow. — khaled
If it is then AI is definitely conscious because it can reach fr the word 'red' in response to some state of it's neural network. — Isaac
That doesn't follow exactly. An AI's "neural network" is hardly similar to a human's as far as I know. — khaled
If I ask "what was being scared like?", I expect you to shake your head and walk away, what could I possibly mean by that? — Isaac
There's a fundamental disconnect between the external world (if you believe in such a thing) and your experiences which makes talk of the experience of red - where 'red' is considered to be something in the external world) fundamentally wrong. — Isaac
There's a fundamental disconnect between the external world (if you believe in such a thing) and your experiences — Isaac
Because if conscious experience is just reaching for some word (or other response) from some internal mental state, then rocks can't do it and we've given an entirely complete physical account of it. — Isaac
What part of the definition of conscious requires that is takes place in a network similar to humans? — Isaac
In the same way, tackling the real problem of consciousness depends on distinguishing different aspects of consciousness, and mapping their phenomenological properties (subjective first-person descriptions of what conscious experiences are like) onto underlying biological mechanisms (objective third-person descriptions). A good starting point is to distinguish between conscious level, conscious content, and conscious self. Conscious level has to do with being conscious at all – the difference between being in a dreamless sleep (or under general anaesthesia) and being vividly awake and aware. Conscious contents are what populate your conscious experiences when you are conscious – the sights, sounds, smells, emotions, thoughts and beliefs that make up your inner universe. And among these conscious contents is the specific experience of being you. This is conscious self, and is probably the aspect of consciousness that we cling to most tightly. — Anil K Seth
But there is an alternative, which I like to call the real problem: how to account for the various properties of consciousness in terms of biological mechanisms; without pretending it doesn’t exist (easy problem) and without worrying too much about explaining its existence in the first place (hard problem). (People familiar with ‘neurophenomenology’ will see some similarities with this way of putting things – but there are differences too, as we will see.) — Anil K Seth
What are the fundamental brain mechanisms that underlie our ability to be conscious at all? Importantly, conscious level is not the same as wakefulness. When you dream, you have conscious experiences even though you’re asleep. And in some pathological cases, such as the vegetative state (sometimes called ‘wakeful unawareness’), you can be altogether without consciousness, but still go through cycles of sleep and waking. — Anil K Seth
I wouldn't. I would say "It's what you feel when you go on a horror ride" and ask you to try it. — khaled
How do you know rocks don't have a mental state? — khaled
It's just that we only know that a human's neural network produces consciousness. And an AI is fundamentally different in that it doesn't have neurons. They are not similar enough to conclude both are consciuos. — khaled
Some researchers take these ideas much further, to grapple with the hard problem itself. Tononi, who pioneered this approach, argues that consciousness simply is integrated information. This is an intriguing and powerful proposal, but it comes at the cost of admitting that consciousness could be present everywhere and in everything, a philosophical view known as panpsychism. — Anil K Seth
When we are conscious, we are conscious of something. What in the brain determines the contents of consciousness? The standard approach to this question has been to look for so-called ‘neural correlates of consciousness’ (NCCs). In the 1990s, Francis Crick and Christof Koch defined an NCC as ‘the minimal set of neuronal events and mechanisms jointly sufficient for a specific conscious percept’. This definition has served very well over the past quarter century because it leads directly to experiments. We can compare conscious perception with unconscious perception and look for the difference in brain activity, using (for example) EEG and functional MRI. — Anil K Seth
But as powerful as these experiments are, they do not really address the ‘real’ problem of consciousness. To say that a posterior cortical ‘hot-spot’ (for instance) is reliably activated during conscious perception does not explain why activity in that region should be associated with consciousness.
https://aeon.co/essays/the-hard-problem-of-consciousness-is-a-distraction-from-the-real-one — Anil K Seth
That's what being scared is, not what it's like. — Isaac
It's not the mental state, it's the inability to report on working memory, which you'd just said was what 'experiences' are. Rocks don't have a working memory. — Isaac
This assumes consciousness is very tightly bound the the type of substrate. I'm not even sure I'd go that far. — Isaac
Read it, thanks. — Olivier5
The amount of resistance that some eliminative materialists put up to the rather obvious idea that they themselves exist as 'minds', and their their incapacity to understand the contradiction in their stance indicate that something more sinister than a mere blind spot is at play: eliminative materialism is a self-denying and life-demeaning ideology. — Olivier5
But explaining how our biology give rise to minds and how minds affect our biology in principle is a more modest project than to objectify fully a subjective experience. It is rather about explaining how something like experience could possibly emerge from biology. — Olivier5
when they do cover the statistical inference of perception, conscious experience is still the end result of that which needs to be explained. — Marchesk
he does not dismiss phenomonlogy by replacing with with neurological or statistical terms, as you do. — Marchesk
Neural correlates of consciousness wouldn't make sense unless Seth (along with Crick and Koch) didn't take phenomenal consciousness seriously as something in need of explanation. — Marchesk
This last quote from the paper is exactly what the anti-Dennett side has been arguing this entire thread.
But as powerful as these experiments are, they do not really address the ‘real’ problem of consciousness. To say that a posterior cortical ‘hot-spot’ (for instance) is reliably activated during conscious perception does not explain why activity in that region should be associated with consciousness. — Marchesk
Perception of a tomato, on this view, involves the brain deploying a high-level generative model predicting the sensory responses elicited by the tomato. In contrast to sensorimotor theory, PP emphasizes neural mechanisms as both necessary and sufficient for perceptual experience (at least at any particular instant)...
..My specific claim is that the subjective veridicality (or perceptual presence) of normal perception depends precisely on the counterfactual richness of the corresponding generative models...
...In addition to accounting for the phenomenology of synesthesia, the theory naturally accommodates phenomenological differences between a range of experiential states including dreaming, hallucination, and the like.
That's what being scared is, not what it's like. — Isaac
So being scared is the experience you have on a horror ride? You're contradicting yourself:
First you insist that if someone who has never experienced fear before (someone with urbach-wiethe disease even) uses the word "afraid" then they know what fear is. Now you say that fear is fundamentally an experience. — khaled
You can be unable to report on working memory and still have experiences. — khaled
The real problem of consciousness, it's in distinction from Chalmers hard and easy problems that we talked about before. The basic idea of the real problem is to accept that consciousness exists, it's part of the universe, we have conscious experiences. And brains exist. One thing we know about consciousness is that it depends on the brain in quite close ways. And the idea is to describe as richly as we can the phenomenology of conscious experience. And to try to build explanatory bridges, as best we can, from brain mechanisms to this phenomenology. This has been called the mapping problem by Chalmers himself. — Anil Seth
Armed with this theory of perception, we can return to consciousness. Now, instead of asking which brain regions correlate with conscious (versus unconscious) perception, we can ask: which aspects of predictive perception go along with consciousness? A number of experiments are now indicating that consciousness depends more on perceptual predictions, than on prediction errors. — Anil Seth
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