Asperger's difference in IQ subset scores

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Rascal77s
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12 Dec 2011, 1:13 am

Tuttle wrote:
Rascal77s wrote:
HalibutSandwich wrote:
Rascal77s wrote:
How people perform on the BDT (Block Design Task) should be what's important on the IQ tests.

Well that screws me as I did only average in the block design. Does that mean I don't have AS? :)



Like I said 52% of the subjects had this mode of processing vs. 2% of the control group. You could be in the 48%. I never meant to suggest it as a method to DX , only that it might provide a clue when someone is being evaluated for an undetermined condition or set of conditions.


Or you could be like me - I used that mode of processing but that was one of my weakest scores.

On one of block design puzzles I wasn't being able to figure out scale of the things in the picture for quite a while and thus didn't know where to start and had to fidget a lot to figure that out. Also, I just had difficulty physically placing them down quickly and correctly despite knowing what I wanted to place down at each point (other than figuring out how to start the last one).

That mode of processing doesn't innately mean a high score.


If you had problems scaling you weren't processing the problem locally.



Tuttle
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12 Dec 2011, 1:34 am

Rascal77s wrote:
Tuttle wrote:
Rascal77s wrote:
HalibutSandwich wrote:
Rascal77s wrote:
How people perform on the BDT (Block Design Task) should be what's important on the IQ tests.

Well that screws me as I did only average in the block design. Does that mean I don't have AS? :)



Like I said 52% of the subjects had this mode of processing vs. 2% of the control group. You could be in the 48%. I never meant to suggest it as a method to DX , only that it might provide a clue when someone is being evaluated for an undetermined condition or set of conditions.


Or you could be like me - I used that mode of processing but that was one of my weakest scores.

On one of block design puzzles I wasn't being able to figure out scale of the things in the picture for quite a while and thus didn't know where to start and had to fidget a lot to figure that out. Also, I just had difficulty physically placing them down quickly and correctly despite knowing what I wanted to place down at each point (other than figuring out how to start the last one).

That mode of processing doesn't innately mean a high score.


If you had problems scaling you weren't processing the problem locally.


I don't think you understand what I mean by that - what the issue was was I couldn't determine whether the corners were one piece half white or one piece fully white and two half white. I couldn't determine any individual piece to start processing at. I was looking locally and I was entirely unsure of the size of what I was looking at, and that caused me to not be able to place the initial block to build from.

I'm absolutely positive that on the other ones I was doing local processing and I'm sure that on that one my issue was determining a start point and once I was able to determine the start point I only processed it locally.



Rascal77s
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12 Dec 2011, 2:14 am

Tuttle wrote:
I don't think you understand what I mean by that - what the issue was was I couldn't determine whether the corners were one piece half white or one piece fully white and two half white. I couldn't determine any individual piece to start processing at. I was looking locally and I was entirely unsure of the size of what I was looking at, and that caused me to not be able to place the initial block to build from.

I'm absolutely positive that on the other ones I was doing local processing and I'm sure that on that one my issue was determining a start point and once I was able to determine the start point I only processed it locally.


I understood exactly what you meant by scaling. I don't think I explained clearly so I'll try again. The BDT consists of red and white blocks (or Black or yellow and white on other tests) and a target picture which is solid and has no separation. Local processing involves looking at the solid picture and mentally segmenting it into individual blocks. When seen as individual blocks one only has to place the actual blocks in the same relative positions as the 'blocks' in the mentally segmented picture. Because of the mental segmentation it doesn't matter where you start, middle, sides, corner are all the same and it doesn't matter how many blocks there are as long as you know how many are required to complete the picture-3x3, 4x4, 5x5, etc it's all the same. So again I'm telling you that you weren't solving it on a local level.



Tuttle
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12 Dec 2011, 2:36 am

Rascal77s wrote:
Tuttle wrote:
I don't think you understand what I mean by that - what the issue was was I couldn't determine whether the corners were one piece half white or one piece fully white and two half white. I couldn't determine any individual piece to start processing at. I was looking locally and I was entirely unsure of the size of what I was looking at, and that caused me to not be able to place the initial block to build from.

I'm absolutely positive that on the other ones I was doing local processing and I'm sure that on that one my issue was determining a start point and once I was able to determine the start point I only processed it locally.


I understood exactly what you meant by scaling. I don't think I explained clearly so I'll try again. The BDT consists of red and white blocks (or Black or yellow and white on other tests) and a target picture which is solid and has no separation. Local processing involves looking at the solid picture and mentally segmenting it into individual blocks. When seen as individual blocks one only has to place the actual blocks in the same relative positions as the 'blocks' in the mentally segmented picture. Because of the mental segmentation it doesn't matter where you start, middle, sides, corner are all the same and it doesn't matter how many blocks there are as long as you know how many are required to complete the picture-3x3, 4x4, 5x5, etc it's all the same. So again I'm telling you that you weren't solving it on a local level.


What you're missing here is that I'm not a visual thinker. This means that even local processing is not identical to someone who does local processing who is a visual thinker (which you seem to be assuming).

Maybe I didn't do what you require to call it local processing. You're also not understanding what I did do however and making statements that assume more knowledge than you have. (I'm sorry that this is something I find difficult to explain how I did.)



Verdandi
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12 Dec 2011, 4:42 am

Could someone define "local processing" for me?



Rascal77s
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12 Dec 2011, 4:47 am

Tuttle wrote:
What you're missing here is that I'm not a visual thinker. This means that even local processing is not identical to someone who does local processing who is a visual thinker (which you seem to be assuming).

Maybe I didn't do what you require to call it local processing. You're also not understanding what I did do however and making statements that assume more knowledge than you have. (I'm sorry that this is something I find difficult to explain how I did.)


Local processing is a detail oriented system and has nothing to do with vidualization. I'm not interested in arguing with you. If it had occured to me that you might take it personally I wouldn't have replied but such is AS.



HalibutSandwich
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12 Dec 2011, 5:13 am

Rascal I'm confused. Are you saying the block test has nothing to do with visualization?



Rascal77s
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12 Dec 2011, 5:16 am

Verdandi wrote:
Could someone define "local processing" for me?


http://www.icn.ucl.ac.uk/dev_group/ufrith/documents/Shah%20and%20Frith,%20Why%20do%20autistic%20individuals%20show%20superior%20performance%20on%20the%20block%20design%20task%20copy.pdf

I thought this was very interesting. There have been many studies done on this and the more current ones use fmri and other imaging to see which parts of the brain are used in performing these tasks. I don't know if you'll want to read the whole thing but I would recommend it. What you are looking for is on the 1st paragraph of page 2.

P.S. I love cats.



Last edited by Rascal77s on 12 Dec 2011, 6:01 am, edited 1 time in total.

Rascal77s
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12 Dec 2011, 5:43 am

HalibutSandwich wrote:
Rascal I'm confused. Are you saying the block test has nothing to do with visualization?


Yes I'm saying that the reason autistics do well in BDT is because of a difference in visual perception, this is not the same as visualization. The superiority of ASD on the BDT is not due to accuracy as NT scored similarly in accuray, rather it is due to the significantly faster times of the ASD. When the picture is presegmented (rather than unsegmented as is normal for the test) the difference between the NT group and the ASD group goes away. This shows that the ASD group is segmenting the picture unconciously while the NT group requires active processing for the segmentation (hence the extra time needed). People with ASD do very well on visual search tasks (hidden objects) for exactly the same reason, hidden objects don't require visualization only visual detail scanning (local processing).

I think where I lost people was in saying "mental segmentation". I meant that it's a process that occurs unconciously during these tasks in a large portion of the ASD population rather than a concious process. Sorry if I made it even more confusing :lol:

BTW your name made me hungry. Don't know about the sandwich thing though :lol: Maybe halibut with lemon and capers :D



OJani
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12 Dec 2011, 5:55 am

HalibutSandwich wrote:
Rascal77s wrote:
How people perform on the BDT (Block Design Task) should be what's important on the IQ tests.

Well that screws me as I did only average in the block design. Does that mean I don't have AS? :)

Actually it seems I'm one of those people that prove AS diagnosis in adults is not clear-cut and requires a multidisciplinary approach. My WAIS score doesn't really fit with Asperger's - average on the BDT, poor VIQ, above average PIQ and superior processing speed. Working memory also showed above average. However I had a speech pathology assessment the other day and the results pretty much negated the WAIS results. The pathologist was a little puzzled about this at first. Working memory showed to be very poor, but she realized the WAIS mainly tested numerical memory, not verbal and is probably why that discrepancy arose. Point is she works in a specialist team to diagnose autistic children, and they're branching out into the "youth market" - up to 25yo - so she has at least a bit of training with adults. And she taught me much more about how my mind works (or doesn't) than any intelligence test.

At the end I asked her what she thought about me having AS and she said she really thinks I do. I may end up getting diagnosed with PDD-NOS or something but that's not the end of the world. Just another fail for stereotypical intelligence assessment.

More or less I was told here by helpful and comforting WP members that being diagnosed with PDD-NOS is not the end of the world, but it felt rather discomforting and aggravating to me to get such a vague and less acknowledged (popular, or whatever) DX.

It seems that many people DX'd with AS might as well be DX'd with PDD-NOS on the basis of having lower VIQ than PIQ (just as I was), though there's apparently no consensus on this.

However, I will look into more details of my assessment, including the IQ test and its subscales.



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12 Dec 2011, 6:04 am

I did very well on the BDT. The person who administered it to me could hardly start and stop the watch, I was so quick. I saw the whole picture in my mind, and arranged and turned the blocks without thinking of a starting point or anything like that. OTOH, I think I scored average at verbal tasks and low at tasks requiring (numeric) working memory.


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12 Dec 2011, 3:44 pm

Rascal77s wrote:
Tuttle wrote:
What you're missing here is that I'm not a visual thinker. This means that even local processing is not identical to someone who does local processing who is a visual thinker (which you seem to be assuming).

Maybe I didn't do what you require to call it local processing. You're also not understanding what I did do however and making statements that assume more knowledge than you have. (I'm sorry that this is something I find difficult to explain how I did.)


Local processing is a detail oriented system and has nothing to do with vidualization. I'm not interested in arguing with you. If it had occured to me that you might take it personally I wouldn't have replied but such is AS.


And I'm saying I did do a detail oriented approach and you're just telling me I didn't because it wasn't identical to yours. That's what's bothering me is that you're telling me that I didn't do something that I did do when you have no way to know what I did and didn't do. You're trying to tell me you know how I think better than I do.

Scale messed with me on one because the way it was built meant that scale was completely necessary to processing the block design. You could not actually determine the difference between "this is made including solid-color blocks" and "this is made only with half-colored blocks" without the sense of size of the things in the pictures and taking the number of blocks total into account.

In that one it was required to process the whole image to get a scale to allow me to process the smaller sections. In the other ones I didn't need to process the whole image. There were non-local dependencies in that pattern.

Other than that, my slow downs didn't have to do with processing time, they only had to do with physically manipulating the blocks; that's why I had commented that a high score is not required for local processing.

It was mentioned in my report that hand-eye coordination was part of what being was tested.



Rascal77s
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12 Dec 2011, 7:19 pm

Tuttle wrote:
Rascal77s wrote:
Tuttle wrote:
What you're missing here is that I'm not a visual thinker. This means that even local processing is not identical to someone who does local processing who is a visual thinker (which you seem to be assuming).

Maybe I didn't do what you require to call it local processing. You're also not understanding what I did do however and making statements that assume more knowledge than you have. (I'm sorry that this is something I find difficult to explain how I did.)


Local processing is a detail oriented system and has nothing to do with vidualization. I'm not interested in arguing with you. If it had occured to me that you might take it personally I wouldn't have replied but such is AS.


And I'm saying I did do a detail oriented approach and you're just telling me I didn't because it wasn't identical to yours. That's what's bothering me is that you're telling me that I didn't do something that I did do when you have no way to know what I did and didn't do. You're trying to tell me you know how I think better than I do.

Scale messed with me on one because the way it was built meant that scale was completely necessary to processing the block design. You could not actually determine the difference between "this is made including solid-color blocks" and "this is made only with half-colored blocks" without the sense of size of the things in the pictures and taking the number of blocks total into account.

In that one it was required to process the whole image to get a scale to allow me to process the smaller sections. In the other ones I didn't need to process the whole image. There were non-local dependencies in that pattern.

Other than that, my slow downs didn't have to do with processing time, they only had to do with physically manipulating the blocks; that's why I had commented that a high score is not required for local processing.

It was mentioned in my report that hand-eye coordination was part of what being was tested.


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