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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi, Dear DTIstudio experts
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<div>I'm trying to perform the atlas-based fiber selection procedure. And I have successfully get the atlas ROIs. Now I meet one question about how to operate several ROIs by using the operation "AND" and "or". I would like to select fibers on both left and
right hemisphere. Say if there are 3 ROIs (A, B, C) on the left, and corresponding 3 ROIs (a, b, c) on the right. I want to operate them like this mathematics formula : </div>
<div><b> (A "OR" B "OR" a "OR" b) "AND" ( C "OR" c) </b></div>
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<div>when I write the map file like this : (A "OR" B "OR" a "OR" b) "AND" C "AND" c, it failed to select the fiber I want. Would you pls tell how to write the map file?
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<div>Thanks. </div>
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<div>Huiyan </div>
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