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panlives Inner circle 2087 Posts |
http://tinyurl.com/23qez2q
[excerpt] These results are the first to show that a purely physical aspect of the brain – the surface area of V1 – can predict the nature of a subjective conscious experience. That raises several interesting questions. For a start, some cultures like the Himba people of Namibia are less vulnerable to the Ebbinghaus illusion than English people are. Autistic people and very young children are similarly resistant. Could this reflect differences in the physical organisation of their brain? Only more research will tell. For the moment, the results remind us that none of us perceives the world around us in quite the same way. Two people can look at the exact same image and see different things. Just as our thoughts and emotions differ from person to person, so do our senses.
"Is there any point to which you would wish to draw my attention?"
"To the curious incident of the dog in the night-time." "The dog did nothing in the night-time." "That was the curious incident," remarked Sherlock Holmes. |
Steve_Mollett Inner circle Eh, so I've made 3006 Posts |
Which is why much of what we call reality is subjective; each of us strains it through a different filter.
Author of: GARROTE ESCAPES
The absurd is the essential concept and the first truth. - Albert Camus |
S2000magician Inner circle Yorba Linda, CA 3465 Posts |
When I was in high school the physics textbook we used had a number of comic strips scattered through it, mostly The Wizard of Id and B.C. One of the B.C. strips addressed a topic such as this. I paraphrase (and, having forgotten exactly who was speaking, choose B.C. and Peter as the characters):
B.C.: I wonder if everyone sees colors the same way. I may look at something and see one color, and you might see another color, be we both call the color we see by the same name. Peter: That's ridiculous! B.C.: OK. I'll prove it to you. See that rock? What color is it? Peter: Gray. B.C.: Wrong! |
Jonathan Townsend Eternal Order Ossining, NY 27297 Posts |
Quote:
On 2010-12-24 09:04, Steve_Mollett wrote: Still presuming there's an 'it'. Let that go and modern physics starts to make sense.
...to all the coins I've dropped here
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kcg5 Inner circle who wants four fried chickens and a coke 1868 Posts |
The size of the hands of a person affects how they palm a basketball
Nobody expects the spanish inquisition!!!!!
"History will be kind to me, as I intend to write it"- Sir Winston Churchill |
Jonathan Townsend Eternal Order Ossining, NY 27297 Posts |
Maybe I missed it - how did they correct for the age/experience with perspective in representation and design as a factor in responses?
...to all the coins I've dropped here
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Magnus Eisengrim Inner circle Sulla placed heads on 1053 Posts |
The result, while interesting, is FAR too modest to allow large-scale inferences about differences in how we perceive the world. I'm still prepared to accept that we experience physical reality very nearly equivalently to each other human.
S2000's version of the "inverted qualia" problem is nice. It is a philosophical puzzle how we can know that we all (with functioning visual apparatus) experience blue the same way. But given the options 1. All normally functioning humans experience the colours roughly the same way, and 2. All normally functioning humans experience the colours differently, I'll stick with #1 because it makes more genetic sense. In the absence of other information, it's a pretty sound default position. John
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned; The best lack all conviction, while the worst Are full of passionate intensity.--Yeats |
Jonathan Townsend Eternal Order Ossining, NY 27297 Posts |
Quote:
On 2010-12-24 12:10, Magnus Eisengrim wrote:...we experience physical reality very nearly equivalently to each other human.... It gets interesting when all we have are stimuli to present and responses to measure or record. Is the glass half full or half empty? Which way is the Necker cube going at the moment? Which way is the shadow ballerina spinning? Then we get to more complex interpretive responses - why does one piece of cloth get treated differently than some other similarly shaped piece of cloth?
...to all the coins I've dropped here
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Magnus Eisengrim Inner circle Sulla placed heads on 1053 Posts |
Quote:
On 2010-12-24 12:17, Jonathan Townsend wrote: Now there we have an area of interest!
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned; The best lack all conviction, while the worst Are full of passionate intensity.--Yeats |
landmark Inner circle within a triangle 5194 Posts |
Attention.
Why there? Why now? Perception is always a selective process.
Click here to get Gerald Deutsch's Perverse Magic: The First Sixteen Years
All proceeds to Open Heart Magic charity. |
Jonathan Townsend Eternal Order Ossining, NY 27297 Posts |
A. C. Clarke remarked that invisibility, if we achieve a means to it, may well come to happen by way of attention rather than any direct physical process.
There's also some very strange stuff happening with afterimages and between separate eye images. Vision, perception and cognition are subjects of interest here.
...to all the coins I've dropped here
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panlives Inner circle 2087 Posts |
Quote:
On 2010-12-24 13:57, Jonathan Townsend wrote: Mr. T., Can you expand on "between separate eye images"? with thanks,
"Is there any point to which you would wish to draw my attention?"
"To the curious incident of the dog in the night-time." "The dog did nothing in the night-time." "That was the curious incident," remarked Sherlock Holmes. |
Jonathan Townsend Eternal Order Ossining, NY 27297 Posts |
Sure, attend how you view things through a relatively small vertical gap. The shifting of your attention between your eyes.
I also found the afterimage effect as an aspect of edge/feature detection interesting. There's one more effect that sometimes surprises me, that of a small light which is on yet in peripheral rather than central vision.
...to all the coins I've dropped here
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panlives Inner circle 2087 Posts |
Quote:
On 2010-12-27 15:14, Jonathan Townsend wrote: Saccadic eye movements?
"Is there any point to which you would wish to draw my attention?"
"To the curious incident of the dog in the night-time." "The dog did nothing in the night-time." "That was the curious incident," remarked Sherlock Holmes. |
Jonathan Townsend Eternal Order Ossining, NY 27297 Posts |
I believe saccades are eyeball movements.
Not sure if they are associated with shifts between eye in attention. on saccades: http://en.wikipedia.org/wiki/Saccade
...to all the coins I've dropped here
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tommy Eternal Order Devil's Island 16544 Posts |
I have an idea. We could invent a ruler.
If there is a single truth about Magic, it is that nothing on earth so efficiently evades it.
Tommy |
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