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Brain maps show differences in AS & HFA children

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MysteryFan3
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28 Nov 2007, 4:36 pm

Article

I wonder what will come from this? More effective teaching methods, I hope.


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EvilKimEvil
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28 Nov 2007, 5:14 pm

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Larger amounts of gray matter in the left parietal area of the brain correlated with higher IQs in the control group of children but not in the autistic children, because that section of gray matter is not functioning properly, Ashtari said.


But I thought it was hard, if not impossible, to reliably measure the IQs of autistic people. I know it is done, but I thought that it was not fair to compare autistic people's IQs to NT IQs because the test is a lot more reliable for NTs, perhaps because it was designed for them.



CockneyRebel
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28 Nov 2007, 5:30 pm

EvilKimEvil wrote:
Quote:
Larger amounts of gray matter in the left parietal area of the brain correlated with higher IQs in the control group of children but not in the autistic children, because that section of gray matter is not functioning properly, Ashtari said.


But I thought it was hard, if not impossible, to reliably measure the IQs of autistic people. I know it is done, but I thought that it was not fair to compare autistic people's IQs to NT IQs because the test is a lot more reliable for NTs, perhaps because it was designed for them.


That's what my thoughts were, as well.


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woodsman25
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29 Nov 2007, 7:22 am

Interesting, I think im going to post this on the other site I frequent which is mainly for parents of kids with ASD's.


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mmaestro
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29 Nov 2007, 12:06 pm

Also, the study was done on those with HFA and AS, which in the article they lump together as "autistic." I thought that aspies, at the very least, had to have <i>above average</i> IQs. So why are they saying the autists had lower IQs than the control?

Oh, wait, I'm misreading, I think. Can someone clarify if I'm getting this right?:

Quote:
Larger amounts of gray matter in the left parietal area of the brain correlated with higher IQs in the control group of children but not in the autistic children, because that section of gray matter is not functioning properly, Ashtari said.

So what they're saying is that more grey matter in the left parietal area meant a higher IQ within the control group, that is to say taking the NTs as a whole, the NTs with more grey matter had higher IQs than the NTs with less, whereas in the autists, there was no difference in IQ between those autists with a larger amount of grey matter compared to the autists with less, because that grey matter wasn't operating correctly. There's no implication on absolute IQs - the autists could still have been higher than the NTs. Am I getting that right?
Good God, they could have found a clearer way to say that, I'm sure.


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KingdomOfRats
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29 Nov 2007, 4:54 pm

mmaestro wrote:
Also, the study was done on those with HFA and AS, which in the article they lump together as "autistic." I thought that aspies, at the very least, had to have <i>above average</i> IQs. So why are they saying the autists had lower IQs than the control?

Oh, wait, I'm misreading, I think. Can someone clarify if I'm getting this right?:
Quote:
Larger amounts of gray matter in the left parietal area of the brain correlated with higher IQs in the control group of children but not in the autistic children, because that section of gray matter is not functioning properly, Ashtari said.

So what they're saying is that more grey matter in the left parietal area meant a higher IQ within the control group, that is to say taking the NTs as a whole, the NTs with more grey matter had higher IQs than the NTs with less, whereas in the autists, there was no difference in IQ between those autists with a larger amount of grey matter compared to the autists with less, because that grey matter wasn't operating correctly. There's no implication on absolute IQs - the autists could still have been higher than the NTs. Am I getting that right?
Good God, they could have found a clearer way to say that, I'm sure.

aspies are not all above average in intelligence and don't have to be to get diagnosis,in fact anyone with an IQ over 75 can be diagnosed with AS,one example is the diagnosed aspie-Barry George [Jill Dandos' supposed killer]-he's got a professionally tested IQ of 76.


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MysteryFan3
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29 Nov 2007, 9:33 pm

No, they are saying that the increased gray matter in the parietal area of autistic children didn't correspond to a higher IQ as it did in the control group. It's not an insult.

Quote:
Those children also showed a decrease in gray matter volume in the right amygdala region of the brain that correlated with degrees of impairment in social interaction, the study found.


According to The Owner's Manual For the Brain, 3rd ed., in functional MRI studies, people in the 9-17 age group process emotions, processes and procedures more often in the amygdala (emotional), where people in the 20-40 age group process these tasks more often in the frontal lobe (rational). Without prior experience in a social setting, the amygdala helps force a choice even with incomplete data. If the amygdala doesn't do that, we can have a freeze-up. The frontal lobe matures in the late 20's.


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