[Mristudio-users] Question about map file operations

[Durai Arasan]

>
>
> If say I happen to put the first operation as AND, and the second
> operation as OR, I still obtain a fiber bundle. I don't understand what
> this actually means logically.
>

If the fiber bundle obtained is the same as that obtained if you just draw
one OR roi, then it means the result of the first AND operation was a null
roi. I think the logical ROI operations in DTI studio take a "null roi" as
the default argument when a roi is not provided explicitly.
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