Note that the study at UT Dallas/Duke/Michigan found that the number-matching task activated the right parietal cortex (as in TMS), while the addition and subtraction tasks produced additional activity in the left parietal cortex — more so with subtraction, which requires greater conceptual skill.

That seems consistent with Snyder’s findings. I’m going to ask Snyder to comment on this.

Maybe there’s a way to use TMS to improve the right-brain aspects of math? It seems Einstein called on direct perceptual understanding.

* See Conversations on Creativity with Allan Snyder,

http://www.psychologytoday.com/blog/beautiful-minds/201001/conversations-creativity-allan-snyder.

“brilliant at breakfast” also? ]]>

38+10=48

48+5=53

so 53-38=15.

I guess my brain likes the concept of adding more, so it translates the substracting problem into an adding one :) ]]>

1) First I store 38 in my memory.

2) Then I reduce 53 by 8, so I get 45

3) Then I store 45

4) Then I go back to 38, strip away 8 so I get 30

5) Then I go back to 45 and reduce with 30 = 15

I can feel how things really turn in my head when I’m at step 2-4. When I add on the other hand add I don’t feel I need to store as much and I can go for directly for it without thinking. Let’s say I wanna calculate 53+38:

1) First I store 38 in my memory

2) Then I take 8 and add it to 53 so I get 61.

3) Then I have 30 left and I added to 61 to get 91.

:)

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