Lines Test

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18 May 2011, 8:09 pm

How do you immediately perceive the following lines?

a. Are the long diagonal lines (not the tiny ones) parallel or slightly tilted away from/toward each other?

b. Look at the red lines... which one looks longer?

Related to Autism Discussion as this can be a test for detail-perception in autistic people. Just trying to test out my own hypothesis.

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Last edited by MathGirl on 18 May 2011, 8:20 pm, edited 3 times in total.

paladin
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18 May 2011, 8:16 pm

a. Straight, b. the same size

MathGirl
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18 May 2011, 8:24 pm

Sorry for the bad wording in the beginning, I've taken in too man words today. OP fixed,

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Verdandi
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18 May 2011, 8:56 pm

I am a slave to optical illusion today.

a. Tilting toward/away
b. Right one looks longer.

I knew both of these perceptions were false, but my eyes insist on giving the illusion precedence.

jmnixon95
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18 May 2011, 8:58 pm

a. Initially, I saw them as tilted away, but after several seconds, I saw they were parallel.
b. Same size.

OddDuckNash99
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18 May 2011, 11:13 pm

A. Tilted.
B. The line on the right seems longer.
---
I have visual-spatial processing problems, so this test won't show my high level of detail perception.

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18 May 2011, 11:14 pm

A) parallel
B) same size

I almost took B) too literally and said to myself, 'they have got to be kidding, it is obvious that on the one side it is one tile length and the other it is five'. But then I pulled up before I hit the ground with that line of thinking. Duh.

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18 May 2011, 11:16 pm

A. Initially I looked and saw equidistant long lines, but I can see it both ways when I think about it. It's funny, my first impression was to connect the lines in my mind and make tiled (albeit poor perspective) stairs. I've been drawing too much lately I think.
B. I definitely see the lines as different sizes, even though I know they are the same.

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18 May 2011, 11:17 pm

a. tilted
b. rh longer

Cassia
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19 May 2011, 12:07 am

A. Tilted.
B. The line on the right seems longer.

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19 May 2011, 12:18 am

A. Parallel
B. One on the right looks longer.

blackcat
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19 May 2011, 12:21 am

A. I don't really see the little lines in relation to the little lines beside them (if that makes sense) but rather...in relation to the little lines across from them...so...i saw "in out in out".

B. The one on the right looks bigger...but only because the tiles on the wall appear to be getting smaller as they become farther away. Blah blah blah perspective blah blah blah vanishing point.

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19 May 2011, 12:24 am

blackcat wrote:

I think also that part of it is that the lines are not lined up. the one on the right is about 1/3 its own length higher than the one on the left.

blackcat
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19 May 2011, 12:32 am

Verdandi wrote:

blackcat wrote:

I think also that part of it is that the lines are not lined up. the one on the right is about 1/3 its own length higher than the one on the left.

Good observation!

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19 May 2011, 12:42 am

a) they look tilting, but using my finger as a guide, I found that they are paralell

B) one one at the end of the hall really does look longer, however using my fingers as a form of measurment to my suprise they are the same length. On this one my eyes tell me one thing, but the actual measurments tell me a totally different story...kinda creepy in a way....I dont know why though.

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19 May 2011, 2:07 am

MathGirl wrote:

How do you immediately perceive the following lines?

a. Are the long diagonal lines (not the tiny ones) parallel or slightly tilted away from/toward each other?

b. Look at the red lines... which one looks longer?

Related to Autism Discussion as this can be a test for detail-perception in autistic people. Just trying to test out my own hypothesis.

The lines are straight.

The second one, the last line looks longer but I know they are both the same.

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