Hi Eric,
Well, which axis is which depends on which pages you're talking about.
If you are looking at the pages that show the axial (horizontal) slices,
the z-coordinate is listed in the top right corner. For example, take page
97. In the top left-hand corner, the z-coordinate is listed as +8. Then
x-coordinates are listed on the left-right "ruler" on the bottom of the
page, and the y-coordinates are listed on the up-down "ruler" on the
right-hand side of the page.
Contrast that with page 69. In this case, the number in the top right
corner indicates the y-axis coordinate (+4), and the bottom ruler indicates
the x-axis coordinate. Z is depicted by the numbers on the left-hand side
of the page.
The orientation of the slices is indicated before each set.
If you want to use the pages with the axial slices, the best thing to do is
turn to the page with the closest z-coordinate, and then find the x- and
y-axis coordinates on the drawing.
Hope this helps.
Best wishes,
Christy
>I know this may seem elementary to most of the people on this list, but I
>just bought a Talaraich Atlas, and I am not quite sure which axis is which.
> I am using the horizontal sections. If somebody can help me and just let
>me know which axis is which, and if there are any conventions that are
>not very obvious that I should know of (I think I heard once that one of
>the axes is the opposite sign in the atlas as SPM outputs, but I'm not
>sure).
>Any help would be greatly appreciated as I would like to embark on analyze
>my first fMRI experiment.
> Thank you,
> ERic Long
At 9:22 PM +0000 11/5/02, Eric Long wrote:
>I know this may seem elementary to most of the people on this list, but I
>just bought a Talaraich Atlas, and I am not quite sure which axis is which.
> I am using the horizontal sections. If somebody can help me and just let
>me know which axis is which, and if there are any conventions that are
>not very obvious that I should know of (I think I heard once that one of
>the axes is the opposite sign in the atlas as SPM outputs, but I'm not
>sure).
>Any help would be greatly appreciated as I would like to embark on analyze
>my first fMRI experiment.
> Thank you,
> ERic Long
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