Psychophysical Demarcation: Absolute or Difference?

[Slickyrider]

I have a spot of color in the center of my left eye, that I may perceive to be an entity at certain times, and other times I cannot. Is this an absolute threshold, or a difference threshold?

It seems as if it has properties of both:

It is agreed that both thresholds are similar, yet this kind seems to be more of an absolute threshold. I'm able to perceive it in ambient lights, not direct light sources. It seems nearly nonexistent in darkness, and these are the background features interfering: light and darkness.

For anyone who is able to understand this, what do you think? Is this a detection threshold, or a difference threshold?

 

[OmegaMan]

I have a spot of color in the center of my left eye, that I may perceive to be an entity at certain times, and other times I cannot. Is this an absolute threshold, or a difference threshold?

It seems as if it has properties of both:

It is agreed that both thresholds are similar, yet this kind seems t be more of an absolute threshold. I'm able to perceive it in ambient lights, not direct light sources. It seems nearly nonexistent in darkness, and these are the background features interfering: light and darkness.

For anyone who is able to understand this, what do you think? Is this a detection threshold, or a difference threshold?

I skimmed this, so I'mma say Absolute.

 

[HumanResources]

I adore users like you.

And by adore, I mean despise...

If you think that hitting the "Random Page" button on Wikipedia a few times and talking about the first topic that comes up makes you look smart you are sadly mistaken. Only incredibly pretentious or arrogant people actually do stuff like this. I can only assume that you are these things as you had no intention of letting people on this forum understand the faintest thing you were talking about.

Don't pretend to be smarter than you are kid, random bits of tid that no one has ever heard about make for *censored.2.0*ty topics. Don't intentionally talk over peoples heads, (And don't deny that you weren't trying) it makes you look like an ass.

OH and by the way...

It's called myodesopsia damnit. They're created from shadows cast into the retina and are visible depending on environmental factors, not just factors of perception. The answer to your question therefore is... "neither".

H.R. Edit: If you didn't understand his uninformative post, he's referring to the eye floaters you can see from time to time. However he did not take into account that "seeing" the eye floaters has little to do, if anything with perception.

 

[[Nook]]

I adore users like you.

And by adore, I mean despise...

If you think that hitting the "Random Page" button on Wikipedia a few times and talking about the first topic that comes up makes you look smart you are sadly mistaken. Only incredibly pretentious or arrogant people actually do stuff like this. I can only assume that you are these things as you had no intention of letting people on this forum understand the faintest thing you were talking about.

Don't pretend to be smarter than you are kid, random bits of tid that no one has ever heard about make for *censored.2.0*ty topics. Don't intentionally talk over peoples heads, (And don't deny that you weren't trying) it makes you look like an ass.

OH and by the way...

It's called myodesopsia damnit. They're created from shadows cast into the retina and are visible depending on environmental factors, not just factors of perception. The answer to your question therefore is... "neither".

Or maybe he is smart, or learned about it not too long ago.
You can't go assuming like that.

 

[Mino]

Oooh, psychology.

To be clear, are we talking about the "floaters" or those things you get from staring at light too long?

 

[Slickyrider]

I adore users like you.

And by adore, I mean despise...

If you think that hitting the "Random Page" button on Wikipedia a few times and talking about the first topic that comes up makes you look smart you are sadly mistaken. Only incredibly pretentious or arrogant people actually do stuff like this. I can only assume that you are these things as you had no intention of letting people on this forum understand the faintest thing you were talking about.

Don't pretend to be smarter than you are kid, random bits of tid that no one has ever heard about make for *censored.2.0*ty topics. Don't intentionally talk over peoples heads, (And don't deny that you weren't trying) it makes you look like an ass.

OH and by the way...

It's called myodesopsia damnit. They're created from shadows cast into the retina and are visible depending on environmental factors, not just factors of perception. The answer to your question therefore is... "neither".

H.R. Edit: If you didn't understand his uninformative post, he's referring to the eye floaters you can see from time to time. However he did not take into account that "seeing" the eye floaters has little to do, if anything with perception.

Dear lord, you don't have to get so goddamn pissy about it. I at least had to reference the thresholds. I do immerse myself into psychophysics, and due to this recent injury, I decided to research optical psychophysics, even though I only made reference to basic psychophysics in the first post.

First of all, it's not myodesopsia. It was caused by a blood hemorrhage, and creating transparency within the origin would create malformed pigmentation, in other words, it would create a spot in my eye that is impossible to cure. Also, aren't light and darkness part of one's environment?

Lastly, I expected the users to give their opinions. This is something...I'm actually suffering from, and I want other opinions besides the one that I got from my retina specialist.

Trevor: ...Somewhat similar, but extremely different. Also, it's psychophysics, a sub-topic of psychology.

 

[Mino]

it's psychophysics, a sub-topic of psychology.

Yes, I understand that. (un)

 

[Psychonaut]

I JUST WANNA SAY RIGHT NOW
AMERICA'S A GREAT COUNTRY
AND YOU SHOULD ALL BE PROUD
TO LIVE IN IT
GOD BLESS

and HR is probably right, sadly.

shoulda explained it in smaller words, bro.

 

[OJ.]

I adore users like you.

And by adore, I mean despise...

If you think that hitting the "Random Page" button on Wikipedia a few times and talking about the first topic that comes up makes you look smart you are sadly mistaken. Only incredibly pretentious or arrogant people actually do stuff like this. I can only assume that you are these things as you had no intention of letting people on this forum understand the faintest thing you were talking about.

Don't pretend to be smarter than you are kid, random bits of tid that no one has ever heard about make for *censored.2.0*ty topics. Don't intentionally talk over peoples heads, (And don't deny that you weren't trying) it makes you look like an ass.

OH and by the way...

It's called myodesopsia damnit. They're created from shadows cast into the retina and are visible depending on environmental factors, not just factors of perception. The answer to your question therefore is... "neither".

H.R. Edit: If you didn't understand his uninformative post, he's referring to the eye floaters you can see from time to time. However he did not take into account that "seeing" the eye floaters has little to do, if anything with perception.

I agree. It's really just annoying. "Smart" on the internet can be defined by the level of wit you display... not how many big words there are in your post.

 

[Psychonaut]

>"Smart"
>on the internet

BAHHAHHAHHAHHAH.

good one. :3

 

[Slickyrider]

Pfft. Sorry, I was just in one of my "Philosopher's Moods".

Those things come at me randomly, and I need to use them to their fullest potential.