If you can't tell me in basic terms what externalism is, we're done. — frank
Quining? — frank
This is where we disagree. You need to know what externalism is to understand Dennett. — frank
Yes — Marchesk
(1) Appearances are secondary qualities. In other words, appearances are relationships between perceived objects and the perception of that object.
(2) Every appearance inheres in a subject.
(3) The appearance has, as a property, a way it seems to the subject it inheres in. — fdrake
Deflation of qualia would benefit philosophy and science. — frank
With exercises meant to demonstrate that a person's reports about qualia are vague, confused, and unreliable. — frank
It would better be seen as fleshing out why qualia should be handled in an externalistic way. — frank
Isn't that kind of obvious? — frank
Qualia are the secondary qualities of perception. — Marchesk
Conscious experience and 3rd person data about conscious experience. — frank
Which just sounds like he wants to say we're conscious, but not really. Kind of like an anti-realist about dinosaur fossils. He's also expressed the ideas that consciousness might be a trick of language, a trick of the reporting mechanism, or just introspection giving us the wrong idea. But whatever it is, consciousness isn't what we think it is. Which sounds like eliminativist talk. — Marchesk
Which sounds like eliminativist talk
Dennett: Today we — most of us —are comfortable with systems of unconscious representations that influence, specify content, orient, direct memory retrieval, etc. That is as good as gospel in cognitive science. These are representations in us that contribute to our cognitive talents without being for us. (In this regard they are no different from the representations of blood sugar level or vitamin deficiency that modulate our digestive systems without engaging cerebral cortex at all.) But at some point, as Frankish puts it, we must describe:
Frankish: the sensory states that are the basis for the illusion. On most accounts, I will assume, these will be representational states, probably modality specific analogue representations encoding features of the stimulus, such as position in an abstract quality space, egocentric location, and intensity. (p. 19)
Dennett: Filling in these details will require answering a host of questions that Frankish raises:
Frankish: Is introspection sensitive only to the content of sensory states, or are we also aware of properties of their neural vehicles? Do the reactions and associations evoked by our sensory states also contribute to the illusion of phenomenality?… Are sensory states continually monitored or merely available to monitoring? Is the introspectability of sensory states a matter of internal access and influence rather than internal monitoring? (p. 19, my italics)
Dennett: I submit that, when we take on the task of answering the Hard Question, specifying the uses to which the so-called representations are put, and explaining how these are implemented neurally, some of the clear alternatives imagined or presupposed by these questions will subtly merge into continua of sorts; it will prove not to be the case that content (however defined) is sharply distinguishable from other properties, in particular from the properties that modulate the ‘reactions and associations evoked’.
The red stripe you seem to see is not the cause or source of your convictions but the intentional object of your convictions. In normal perception and belief, the intentional objects of our beliefs are none other than the distal causes of them. I believe I am holding a blue coffee mug, and am caused to believe in the existence of that mug by the mug itself. The whole point of perception and belief fixation is to accomplish this tight coalescence of causes and intentional objects. But sometimes things go awry. Suppose a gang of hoaxers manage to convince you, by a series of close encounters, that there is a space alien named Zom who visits you briefly, speaks to you on the phone, etc. The causes of your various Zom experiences can be as varied as can be, so that nothing at all in the world deserves to be identified as Zom, the intentional object of your beliefs. What are intentional objects ‘made of’? They’re not made of anything. When their causes don’t coalesce with them, they are fictions of a sort, or illusions.
Dennett thinks people endorse things like hardness or redness because they're doing the best they can to interpret neurological functioning, not because those things are properties of experience. He speculates that the illusion of phenomenal consciousness may arise from verbal streams. In short, he equivocates. He does the same thing with free will. — frank
He sounds like it! — khaled
Everything real has properties, and since I don't deny the reality of conscious experience, I grant that conscious experience has properties. — Dennett
Where might I ask? — khaled
What notion exactly is Dennett trying to attack here? — khaled
"Seeing" is qualia. Though I suspect we're not talking about the same thing. — khaled
2- Tea tastes like nothing and you are all philosophical zombies which think they're not philosophical zombies. — khaled
Which idea of qualia am I trying to extirpate? Everything real has properties, and since I don't deny the reality of conscious experience, I grant that conscious experience has properties. I grant moreover that each person's states of consciousness have properties in virtue of which those states have the experiential content that they do. That is to say, whenever someone experiences something as being one way rather than another, this is true in virtue of some property of something happening in them at the time, but these properties are so unlike the properties traditionally imputed to consciousness that it would be grossly misleading to call any of them the long-sought qualia. Qualia are supposed to be special properties, in some hard-to-define way. My claim--which can only come into focus as we proceed--is that conscious experience has no properties that are special in any of the ways qualia have been supposed to be special.
The standard reaction to this claim is the complacent acknowledgment that while some people may indeed have succumbed to one confusion or fanaticism or another, one's own appeal to a modest, innocent notion of properties of subjective experience is surely safe. It is just that presumption of innocence I want to overthrow. — Dennett
Probably so, but I don’t see how this makes the sensations extrinsic if it’s the brain circuitry that produces the sensations, not any other part of the perceptual process. — Marchesk
There is no double transduction [5]. The various peripheral and internal transducers—rods and cones, hair cells, olfactory epithelium cells, stretch-detectors in muscles, temperature-change detectors, nociceptors and others—are designed by evolution to take the occurrence of physically detectable properties as input and yield signals—axonal spike trains—as output. There is no central arena or depot where these spike trains become recipes for a second transduction that restores the properties transduced at the periphery, or translates them into some sort of counterpart properties of a privileged medium. Vision is not television, audition does not strike up the little band in the brain, olfactory perception does not waft aromas in any inner chamber. (Nor, one had better add, are there subjective counterpart properties, subjective colours-that-are-not-seen-with-eyes, inaudible-sounds, ghost-aromas that need no molecular vehicles, for us to enjoy and identify in some intimate but unimaginable way.) Colour vision is accomplished by a sophisticated system of information processing conducted entirely in spike trains, where colours are ‘represented’ by physical patterns of differences in spike trains that are not themselves colours. The key difference between the transmission of colour information by a DVD and the transmission of colour information by the various cortical regions is that the former is designed by engineers to be a recipe for recreating (via a transduction to another medium) the very properties that triggered the peripheral transducers that compose the megapixel screens behind the camera lens, while the latter is designed by evolution to deliver useful information about the affordances that matter to the organism in a form that is readily usable or consumable [10] by the specialized circuits that modulate the behaviours of systems external and internal.
(ii) So, there is no place in the system for qualia, if they are conceived of as intrinsic properties instantiated by (as contrasted with represented by) some activities in the nervous system. — Dennett, Facing up to the hard question
The problem with this is that we can have color experiences independent of perception.m, such as in dreams or by directly stimulating the visual cortex. — Marchesk
Perhaps due to the highly visual nature of dreaming, people always have wondered if blind people dream, so some of the earliest systematic interview studies on dreams dealt with this topic, showing that people who are born blind or become blind before age 4 or 5 years old do dream even though they do not see images in their dreams,91 a finding that was then supported by laboratory studies.92,93 Nor is there much if any difference in dream content, except that there may be less aggression in their dreams.11,91
Being a relation still involves a combination of, or an interaction between, a subject and an object(s). Object(s) are still filtered/perceived by the subject (or by the subject's brain/body) in a way unique to that brain/body, even if colour or sweetness are labelled as objective properties. If there were no subjective aspect, then you should expect to find that we all have the same subjective (objective?) experiences. However, many of Dennett's examples demonstrate that this is not the case. For example, the case of cerebral achromatopsia in which a subject reports that "everything looked black or grey". I have never had this type of experience before. If colour is an objective property then why does the subject report seeing (e.g.) "bright blue objects as black"? — Luke
What is special about qualia? Traditional analyses suggest some fascinating second-order properties of these properties. First, since one cannot say to another, no matter how eloquent one is and no matter how cooperative and imaginative one's audience is, exactly what way one is currently seeing, tasting, smelling and so forth, qualia are ineffable--in fact the paradigm cases of ineffable items. According to tradition, at least part of the reason why qualia are ineffable is that they are intrinsic properties--which seems to imply inter alia that they are somehow atomic and unanalyzable. Since they are "simple" or "homogeneous" there is nothing to get hold of when trying to describe such a property to one unacquainted with the particular instance in question.
Moreover, verbal comparisons are not the only cross-checks ruled out. Any objective, physiological or "merely behavioral" test--such as those passed by the imaginary wine-tasting system-- would of necessity miss the target (one can plausibly argue), so all interpersonal comparisons of these ways-of-appearing are (apparently) systematically impossible. In other words, qualia are essentially private properties. And, finally, since they are properties of my experiences (they're not chopped liver, and they're not properties of, say, my cerebral blood flow--or haven't you been paying attention?), qualia are essentially directly accessible to the consciousness of their experiencer (whatever that means) or qualia are properties of one's experience with which one is intimately or directly acquainted (whatever that means) or "immediate phenomenological qualities" (Block, 1978) (whatever that means). They are, after all, the very properties the appreciation of which permits us to identify our conscious states. So, to summarize the tradition, qualia are supposed to be properties of a subject's mental states that are...
The specialness of these properties is hard to pin down, but can be seen at work in intuition pump #2: the wine-tasting machine. Could Gallo Brothers replace their human wine tasters with a machine? A computer-based "expert system" for quality control and classification is probably within the bounds of existing technology. We now know enough about the relevant chemistry to make the transducers that would replace taste buds and olfactory organs (delicate color vision would perhaps be more problematic), and we can imagine using the output of such transducers as the raw material--the "sense data" in effect--for elaborate evaluations, descriptions, classifications. Pour the sample in the funnel and, in a few minutes or hours, the system would type out a chemical assay, along with commentary: "a flamboyant and velvety Pinot, though lacking in stamina"--or words to such effect. Such a machine might well perform better than human wine tasters on all reasonable tests of accuracy and consistency the winemakers could devise Endnote 3, but surely no matter how "sensitive" and "discriminating" such a system becomes, it will never have, and enjoy, what we do when we taste a wine: the qualia of conscious experience! Whatever informational, dispositional, functional properties its internal states have, none of them will be special in the way qualia are. If you share that intuition, you believe that there are qualia in the sense I am targeting for demolition.
What is special about qualia? Traditional analyses suggest some fascinating second-order properties of these properties.
My challenge strikes some theorists as outrageous or misguided because they think they have a much blander and hence less vulnerable notion of qualia to begin with. They think I am setting up and knocking down a strawman, and ask, in effect: "Who said qualia are ineffable, intrinsic, private, directly apprehensible ways things seem to one?" Since my suggested fourfold essence of qualia may strike many readers as tendentious, it may be instructive to consider, briefly, an appparently milder alternative: qualia are simply "the qualitative or phenomenal features of sense experience( s ), in virtue of having which they resemble and differ from each other, qualitatively, in the ways they do." (Shoemaker, 1982, p. 367) Surely I do not mean to deny those features!
I reply: it all depends on what "qualitative or phenomenal" comes to. Shoemaker contrasts qualitative similarity and difference with "intentional" similarity and difference-- similarity and difference of the properties an experience repre sents or is "of". That is clear enough, but what then of "pheno menal"? Among the non-intentional (and hence qualitative?) properties of my visual states are their physiological properties. Might these very properties be the qualia Shoemaker speaks of? It is supposed to be obvious, I take it, that these sorts of features are ruled out, because they are not "accessible to introspection" (Shoemaker, private correspondence). These are features of my visual state, perhaps, but not of my visual experience. They are not phenomenal properties.
“But are there not many fascists in your country?"
"There are many who do not know they are fascists but will find it out when the time comes.”
Take calculating some iterative algorithm that has no p-type solution. The step you happen to be on isn't the 'result' of the process, it's just the transient stage you're currently at. If we did want a result it might more properly be something like 'you're going to doing this forever', or 'you'll never get a number below 100', or some such limit. That's the way I'm seeing perceptual processing, from day one the perception is not a result, its a prediction to be input into the algorithm generating the next perception... — Isaac
Indeed, I was just reading a paper about how the process can cause information loss and, you're right, we can hardly discuss perceptual features not present due to the processes that lost them. And to this extent qualia may not be useful scientific concepts, as Dennett said. That said, there is, as both yourself and Isaac have pointed out, feedback between what we consciously perceive and the unconscious processes that form those perceptions, so any complete description of perception must surely account for what is perceived. — Kenosha Kid
As far as I can see atm there are unconscious processes, whatever their structure, that act on sensory input, and we have consciousness of the results of those actions, whatever the structure of consciousness. The unintended implications that e.g. there is some teleological submission process, or some terminus at consciousness, or some implied specific structure to consciousness, aren't really what my argument is about. It is simply that we are conscious of results of unconscious processing. — Kenosha Kid
I see. It seems then that our disagreement (small such as it is) is only over whether dismissal of Qualia in their entirety puts this idea at risk (throws the baby out with the bathwater, as you put it). My feeling is that the idea here is so generalised and applicable to a field much wider than qualia, that dismissing all talk of qualia maintains the conscious awareness of the results of unconscious processing completely intact. — Isaac
:lol: I probably shouldnt either. — frank
There's no argument or evidence that is going to get me to think, 'Hmmm...maybe I don't have qualia after all..." — RogueAI
You're conflating being conscious with reports of consciousness. They're not the same thing. Not even remotely — RogueAI
That claim is self-evident. — RogueAI
Lame — RogueAI
Even if we are as loathe as Lewis is to abandon the distinction, shouldn't we be suspicious of the following curious fact? If challenged to explain the idea of an intrinsic property to a neophyte, many people would hit on the following sort of example: consider Tom's ball; it has many properties, such as its being made of rubber from India, its belonging to Tom, its having spent the last week in the closet, and its redness. All but the last of these are clearly relational or extrinsic properties of the ball. Its redness, however, is an intrinsic property. Except this isn't so. Ever since Boyle and Locke we have known better. Redness--public redness--is a quintessentially relational property, as many thought experiments about "secondary qualities" show. (One of the first was Berkeley's (1713) pail of lukewarm water, and one of the best is Bennett's (1965) phenol- thio-urea.) The seductive step, on learning that public redness (like public bitterness, etc.) is a relational property after all, is to cling to intrinsicality ("something has to be intrinsic!") and move it into the subject's head. It is often thought, in fact, that if we take a Lockean, relational position on objective bitterness, redness, etc., we must complete our account of the relations in question by appeal to non-relational, intrinsic properties. If what it is to be objectively bitter is to produce a certain effect in the members of the class of normal observers, we must be able to specify that effect, and distinguish it from the effect produced by objective sourness and so forth.
If this characterisation is incorrect, does it imply that we can't perceive orange juice to be sweet, or cauliflower to be creamy, at a particular time? If no "final product" of perception gets presented to consciousness (at a time, or at all conscious times), then how can we make any judgments about what we perceive? — Luke
Since we are at least conscious of them, I think it helps to bear in mind that, whatever else is going on, and whatever definitions of consciousness we prefer, this presentation is happening. The alternative is, as per that shorter flow, that our bodies just dump raw sensory data straight into our consciousnesses unadulterated, — Kenosha Kid
Yes. Why not? I'm not trying to shoehorn objects of perception into some previous mysterious philosophy of qualia. I'm just saying that we have them and they serve a purpose. That purpose is not necessarily to do philosophy with or chat about them ;) — Kenosha Kid
(1) Sense data are the kind of thing we are directly aware of in perception,
(2) Sense data are dependent on the mind, and
(3) Sense data have the properties that perceptually appear to us.
Raw sensory data -> Pre-processed data -> Formatted object -> conscious apprehension
I'm not sure what you mean by 'pre-processed'. I'm going to take a stab at it assuming you mean to ask if conscious awareness is a necessary feature of bacwkard acting signals. No, but it is usually involved at the higher model levels which, of course, will have an influence over all the models below them. Dream study is probably the best case study for this (again huge pinch of salt required here, very difficult to study), but it seems likely, because of the way memory storage works, that basic object recognition, including limited function, must be able to take place without conscious awareness because they do so during deep sleep dreaming, but appropriate response, form detail and complex function do require some conscious awareness because they only seem to enter stage during REM sleep where you're semi-conscious. — Isaac
(3) Sense data have the properties that perceptually appear to us.
(Generally the idea that the brain is doing stuff that the mind is unaware of does not sit favourably, but that's just the way it is.) — Kenosha Kid
The perceptual ‘something’ is always in the middle of something else, it always forms part of a ‘field’. A really homogeneous area offering nothing to be cannot be given to any perception. The structure of actual perception alone can teach us what perception is. The pure impression is, therefore, not only undiscoverable, but also imperceptible and so inconceivable as an instant of perception.
Pure sensation will be the experience of an undifferentiated, instantaneous, dotlike impact. It is unnecessary to show, since authors are agreed on it, that this notion corresponds to nothing in our experience, and that the most rudimentary factual perceptions that we are acquainted with, in creatures such as the ape or the hen, have a bearing on relationships and not on any absolute terms
he alleged self-evidence of sensation is not based on any testimony of consciousness, but on widely held prejudice. We think we know perfectly well what ‘seeing’, ‘hearing’, ‘sensing’ are, because perception has long provided us with objects which are coloured or which emit sounds. When we try to analyse it, we transpose these objects into consciousness. We commit what psychologists call ‘the experience error’, which means that what we know to be in things themselves we immediately take as being in our consciousness of them. We make perception out of things perceived. And since perceived things themselves are obviously accessible only through perception, we end by understanding neither.
The qualia are the objects of subjective experience, so are not necessarily pre-existing objects provided to conscious apprehension but are the objects of providing data for conscious apprehension. — Kenosha Kid
And I think this is what is safe to rule out, although I expect rationalists will not like it. (Generally the idea that the brain is doing stuff that the mind is unaware of does not sit favourably, but that's just the way it is.) — Kenosha Kid
This is his issue with the intrinsic qualities of qualia: that you can meaningfully compare two. But this is not demanded by our conscious experiences. It is not our rational minds that generally determine that the car is the same colour as it was yesterday, rather the colour of the car is part of how we recognise it as ours. — Kenosha Kid