Consciousness: freaky shit or nbd

Message Bookmarked
Bookmark Removed
Not all messages are displayed: show all messages (736 of them)

saying modeling and experiencing are synonymous is a million miles from e.g. saying liquidity and molecular motion are synonymous. I'm not saying it's wrong, just that we currently have *no idea* how that might work. it takes little insight to see it in the case of liquidity. it seems utterly inconceivable in the case of experience.

ledge, Tuesday, 29 January 2013 15:54 (eleven years ago) link

What constitutes a visual field? there's a lot of steps in visual processing and the "error" of seeing red could take place in any number of areas, any of which can be denied.

Philip Nunez, Tuesday, 29 January 2013 15:56 (eleven years ago) link

Introspectively, when you think about what it is to contemplate something, can you do it in such a way that you cannot also be said to be modeling that thing?

Philip Nunez, Tuesday, 29 January 2013 16:00 (eleven years ago) link

no, there is obviously correlation. it's a leap from that to causation (or identity).

what happens if there is spontaneous activity in my primary visual cortex such that i seem to see a patch of red? how is my experience mistaken?

ledge, Tuesday, 29 January 2013 16:03 (eleven years ago) link

It can be "mistaken" by further processing down the visual pipeline (or in another area of processing altogether) contradicting that, ultimately leading you to say "I saw blue" -- what is it you actually experienced then?

Philip Nunez, Tuesday, 29 January 2013 16:13 (eleven years ago) link

Putting it like that, what I experienced was the spontaneous fluctuation in my visual cortex, nothing more. So yes there will always be a physical correlation, but you can't say "you didn't see blue" - yes I did! It was right there in my (personal subjective private experiental) visual field!

ledge, Tuesday, 29 January 2013 16:17 (eleven years ago) link

Nah, we're pretty unreliable narrators in that regard.

Philip Nunez, Tuesday, 29 January 2013 16:24 (eleven years ago) link

Not if phrased "I remember seeing blue". How do you challenge that, exactly?

stet, Tuesday, 29 January 2013 16:35 (eleven years ago) link

like if a light was red, and you drove past it, but you're utterly convinced of being a good, law-abiding citizen, you can resolve this by editing your master experiential narrative to having seen a yellow light.

Philip Nunez, Tuesday, 29 January 2013 16:37 (eleven years ago) link

oh sorry, i missed the step you were making from visual cortex producing red -> seeing blue, just thought you were changing colour terms for variety. also i erred saying primary visual cortex, i meant the last step in the visual pipeline (assuming for simplicity's sake that there is one).

so.

assuming there is spontaneous activity in v5, or whatever the final step in the colour processing chain is, which would correspond with seeing red in my visual field, then i will always see red. there can be no mistake there.

xposts.

ledge, Tuesday, 29 January 2013 16:39 (eleven years ago) link

well what do you consider the arbiter of what you, as a coherent identity, experienced? is it whatever controls speech? because I'd make the case that what we say (in internal monologues as well) would very likely contradict any number of activities that are actually going on in the brain.

Philip Nunez, Tuesday, 29 January 2013 16:50 (eleven years ago) link

as far as visual experience goes it is its own arbiter, i guess. yes there could be errors of speech or memory after the fact.

ledge, Tuesday, 29 January 2013 16:55 (eleven years ago) link

memory is a kind of conscious experience. so i can be sure *now* i'm seeing red, and be sure ten minutes later that i remember seeing yellow. but i shouldn't claim to be sure that i saw yellow. i don't think that's sophistry, not sure if it's useful.

ledge, Tuesday, 29 January 2013 16:59 (eleven years ago) link

if you allow that memory retrieval is equivalent to experience, why not modeling?

Philip Nunez, Tuesday, 29 January 2013 17:03 (eleven years ago) link

I'm not so sure there is anything you don't experience through memory. Even stuff you claim to be experiencing "now".

Emperor Cos Dashit (Adam Bruneau), Tuesday, 29 January 2013 17:05 (eleven years ago) link

there are some interesting experiments w/r/t very short term memory which I think give a clue to the constraints of what's necessary for cognition. (the 5 +/- 2 thing etc...)

Philip Nunez, Tuesday, 29 January 2013 17:08 (eleven years ago) link

if you allow that memory retrieval is equivalent to experience, why not modeling?

I would distinguish between the subjective experience of memory retrieval and the brain mechanisms of memory retrieval. No different from the visual experience case.

ledge, Tuesday, 29 January 2013 17:35 (eleven years ago) link

let's try a different angle: if an entity is performing recognizable mechanisms of memory retrieval, would you allow that the entity is having a subjective experience?

Philip Nunez, Tuesday, 29 January 2013 17:43 (eleven years ago) link

Perhaps, perhaps. I'm basically a panpsychist u kno. Would you?

ledge, Tuesday, 29 January 2013 17:51 (eleven years ago) link

I'd say so, too, but if we accept that, why isn't that enough?

Philip Nunez, Tuesday, 29 January 2013 17:57 (eleven years ago) link

Because I don't know what it is like to be a bat. Or a bloody hard drive. Because Mary doesn't know what it's like to see red. Because phenomenal subjective experience is nothing like anything in physics. Because http://en.wikipedia.org/wiki/Hard_problem_of_consciousness

ledge, Tuesday, 29 January 2013 17:59 (eleven years ago) link

I'd say you could know what it is like to be a bat insofar that the bat doesn't know what it's like to be a bat either, so you're both on equal bat-ground.

Philip Nunez, Tuesday, 29 January 2013 18:02 (eleven years ago) link

I mean going back to the entity question, if it's performing a recognizable memory retrieval mechanism, the fact that it is recognizable means you are performing an analogous retrieval yourself, so you are more or less experiencing the same thing.

Philip Nunez, Tuesday, 29 January 2013 18:05 (eleven years ago) link

A feedback loop signifying self-awareness?

Emperor Cos Dashit (Adam Bruneau), Tuesday, 29 January 2013 18:07 (eleven years ago) link

I dunno. y'all could just be thinking about peanut butter.

Philip Nunez, Tuesday, 29 January 2013 18:14 (eleven years ago) link

I mean going back to the entity question, if it's performing a recognizable memory retrieval mechanism, the fact that it is recognizable means you are performing an analogous retrieval yourself, so you are more or less experiencing the same thing.

So I can only know (questionable even whether this analogically reasoning is enough for knowledge) what it is like to experience something I have already experienced? That's the point of Mary the colourblind neuroscientist. Scientific knowledge alone is insufficient or incomplete.

Feedback, models, complexity, none of these bridge the gap.

ledge, Tuesday, 29 January 2013 18:21 (eleven years ago) link

You can have false memories so you don't have to have first-hand experience of something.

Philip Nunez, Tuesday, 29 January 2013 18:28 (eleven years ago) link

A false memory is a first-hand experience!

ledge, Tuesday, 29 January 2013 18:30 (eleven years ago) link

The Mary problem is particularly weird and egregious in that in her scenario, she's probably the only person in the world who actually knows what the experience of "red" is like for anyone else.

Philip Nunez, Tuesday, 29 January 2013 18:30 (eleven years ago) link

The premise is Mary has been gifted with supernatural knowledge (i.e. implanted with false memories)

Philip Nunez, Tuesday, 29 January 2013 18:31 (eleven years ago) link

She knows no such thing! Aargh! WHY CAN'T YOU SEE THE ELEPHANT?!

ledge, Tuesday, 29 January 2013 18:31 (eleven years ago) link

xp

ledge, Tuesday, 29 January 2013 18:32 (eleven years ago) link

food writing is generally pretty bad, but a sufficiently gifted food writer could describe a novel food you have never eaten before and you would be able to recognize it upon eating it (because in a sense you have already eaten it)

Philip Nunez, Tuesday, 29 January 2013 18:35 (eleven years ago) link

In what sense?

Instagram Llewyn Davis (silby), Tuesday, 29 January 2013 20:14 (eleven years ago) link

I mean going back to the entity question, if it's performing a recognizable memory retrieval mechanism, the fact that it is recognizable means you are performing an analogous retrieval yourself, so you are more or less experiencing the same thing.

Wait, you're begging the question here. Whether you are experiencing the same thing when the same recognisable mechanisms are operating is entirely the point in question

stet, Tuesday, 29 January 2013 20:26 (eleven years ago) link

If you don't accept that you are both experiencing the same thing, then there's no basis to say that you can experience anything "red" because red is a referent to an experience performed by an entity that is different from you in the present.

Philip Nunez, Tuesday, 29 January 2013 21:21 (eleven years ago) link

No it isn't. Unless you're talking about my prior self as a distinct entity. (Are you?) Otherwise the referent of "red" is my own prior redness experience.

If you're claiming that my experience of red is necessarily the same as, say, yours on pain of meaninglessness then you're again begging the q.

stet, Tuesday, 29 January 2013 21:32 (eleven years ago) link

Yes your prior self is a distinct entity that ought not be afforded privilege over a stranger provided the recognition is there

Philip Nunez, Tuesday, 29 January 2013 21:39 (eleven years ago) link

It has inherent privilege over a stranger in that both of us share the same referent for red. The memories of the referent may be unreliable or faulty, but it's possible to hypothesise an instance where they are reliable and accurate.

There is no similar instance than can be posited between us and the other non-us agents that don't have access to that referential experience at any time, even hypothetically.

stet, Tuesday, 29 January 2013 22:01 (eleven years ago) link

Why not? you are as much a stranger to yourself as you are to someone else, given sufficient time.

Philip Nunez, Tuesday, 29 January 2013 22:15 (eleven years ago) link

The ship of Theseus might have all new wood, but it still isn't the Titanic

stet, Tuesday, 29 January 2013 22:31 (eleven years ago) link

Same shit different boat

Philip Nunez, Tuesday, 29 January 2013 22:41 (eleven years ago) link

293. If I say of myself that it is only from my own case that I know what the word “pain” means a must I not say that of other people too? And how can I generalize the one case so irresponsibly?

Well, everyone tells me that he knows what pain is only from his own case! —– Suppose that everyone had a box with something in it which we call a “beetle”. No one can ever look into anyone else’s box, and everyone says he knows what a beetle is only by looking at his beetle. a Here it would be quite possible for everyone to have some- thing different in his box. One might even imagine such a thing con- stantly changing. a But what if these people’s word “beetle” had a use nonetheless? a If so, it would not be as the name of a thing. The thing in the box doesn’t belong to the language-game at all; not even as a Something: for the box might even be empty. a No, one can ‘divide through’ by the thing in the box; it cancels out, whatever it is.

— Uncle Ludwig, PI

Instagram Llewyn Davis (silby), Wednesday, 30 January 2013 08:59 (eleven years ago) link

whoops, graf continues:

That is to say, if we construe the grammar of the expression of sensation on the model of ‘object and name’, the object drops out of consideration as irrelevant.

Instagram Llewyn Davis (silby), Wednesday, 30 January 2013 09:01 (eleven years ago) link

Let's all go read PI and then reconvene, I've been meaning to do that for a few years here…

Instagram Llewyn Davis (silby), Wednesday, 30 January 2013 09:07 (eleven years ago) link

I will if you tell me:

what he means by "drops out of consideration as irrelevant"
his intended level of irony
what we are to take from this passage

hot slag (lukas), Wednesday, 30 January 2013 17:32 (eleven years ago) link

Dude it's Wittgenstein, figuring out what he means is the whole game.

Instagram Llewyn Davis (silby), Wednesday, 30 January 2013 17:39 (eleven years ago) link

hahah ok

i guess what i take from that is: "we all in practice act as if we know what pain is, so stop theorizing about private unsharable experiences"

hot slag (lukas), Wednesday, 30 January 2013 17:41 (eleven years ago) link

i think we are entering a realm where we no longer have to theorize because the private unsharable experiences are becoming less private and more sharable, to the point where we can reasonably say lobsters feel pain so we should probably stop cooking them that way.

Philip Nunez, Wednesday, 30 January 2013 19:41 (eleven years ago) link

I was going to say, I think the way we experience pain is highly socialized behavior.

o. nate, Wednesday, 30 January 2013 20:26 (eleven years ago) link


You must be logged in to post. Please either login here, or if you are not registered, you may register here.