Mapping 1d.dset on a surface

AFNI Message Board
1

Hello

I tried to map 1d.dset files [1] (ld 141) from a topography study [2] to a brain’s spec file (ld 141) in SUMA, but I got the wrong result (first image)
The correct mapping should be like the second image.

Also, the error message I got was:
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Notice SUMA_AddNodeIndexColumn:
Used column 0 as node indices.
Added a node index column nonetheless.
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name
Error SUMA_Dset_Type (suma_datasets.c:4915):
Null Name

Does anyone know why I got the wrong result?

I have another question. Can I use the following command to concatenate lh.1d.dset and rh.1d.dset files?
3dcalc -a lh.1d.dset -b rh.1d.dset -expr ‘a+b*not(bool(a))’ -prefix mh.1d.dset
I used the above command, but I got an error that 3dcalc can’t read my 1d.dset files.

[1] http://scholar.princeton.edu/sites/default/files/napl/files/probatlas_v4.zip

[2] Probabilistic Maps of Visual Topography in Human Cortex; Liang Wang, Ryan E B Mruczek, Michael J Arcaro, Sabine Kastner

brain1.jpg
brain1.jpg1009×600 103 KB

brain2.jpg
brain2.jpg1010×600 68.5 KB

2

The Princeton atlas is distributed with probability maps on the surface for each region, an unthresholded maximum probability map for the surface and a volumetric atlas too. You can pick a probability as a threshold for each surface region or use the MPM map, generate a new MPM map, or make all kinds of combinations of thresholds. What kind of data would you like to map to the surface?

Concatenating the left and right hemispheres doesn’t seem useful for most things I can think of.

3

Thank you, Daniel.
It is 1d.dset file. The content of the file is something like this:

<SPARSE_DATA

ni_type = “2*float”

ni_dimen = “198812”

data_type = “Node_ROI_data”

>

0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
.
.
.
154275 0
154276 0
154277 2.04082
154278 2.04082
154279 2.04082
154280 4.08163
154281 2.04082
.
.
.
198806 0
198807 0
198808 0
198809 0
198810 0
198811 0

</SPARSE_DATA>

For example, I tried to map ventral v1 of the left hemisphere on a surface and I got the following result:

I want to combine the 1d.dset files because when I tried to map lh.1d.dest and rh.1d.dest on a brain surface, they both mapped on the left hemisphere of a brain surface.

brain.jpg

4

It looks like you are looking at the first column of the data. See if you can change the Intensity column to column 1 instead - on the right side of the suma object controller.

5

Thank you, Daniel. It is working now!