illusion theories

[Boots]

We dont have to know them right?

[akira88]

What do you mean?
Perceptual compromise etc?

[Visionz]

or do you mean cognitive and biological factors?

[Tashi]

I think you just have to know one. They won't ask "what is the apparent-distance theory?" or "what is the perceptual compromise theory?" but rather "give an explanation for this illusion." The chief examiner in the lecture the other day was saying as long as students gave a reasonable explanation for a theory, they got a mark for one year they asked it.

[Boots]

ok, so is the 'carpentered world hypotheisis' the same as the 'apparent distance hypothesis?'

[Tashi]

Yeah pretty much. Carpentered world hypothesis incorporates apparent distance I think, because apparent distance can also somehow be used for Ames room - not sure how though...

[Boots]

How is the floor in the ames room constructed? Please be detailed

[Tashi]

Um I'm not really an expert in psych, but I think the floor slants downwards towards the left corner and the left corner is double the height and distance of the right corner.

[Visionz]

http://cfs8.blog.daum.net/image/30/blog/2008/11/05/20/16/49118099d6d8e

And yes im pretty sure it slants downwards towards the further away corner (the ceiling also slants upwards). There was a video where a person sat a ball down on the floor of the ames room and it rolled towards the back corner without any initial force behind it.

[Boots]

From the viewer does the floor slant upwards or downwards?

[Spreadbury]

downwards. whichever corner is closer to the viewer would have the floor at its highest point

[Boots]

So let me get this straight.

The floor slants downwards from the right to the left
It also slants downwards from the viewer to the the wall

[akira88]

It's awesome because I went on an excursion to Amaze 'n' Things to go into their Ames room

 It doesn't matter whether or not you say the further corner is the right or left, as long as you keep it consistent with your explanation- that the same corner that is further away is sloping down, and that the ceiling is slanting upwards.

[Boots]

Ohh...ok thanks akira

But how come in this picture (from heinemann) is the slope upwards?

[Visionz]

Ohh...ok thanks akira

But how come in this picture (from heinemann) is the slope upwards?

It also has the girl appearing the same size at both distances. Which we know is wrong.

watch this. http://www.youtube.com/watch?v=Ttd0YjXF0no