Neurosynth decoding - flipped hemisphere labels, but not data?

[Louise Martens]

Dear all, 

I am trying to use the neurosynth decoder online (because I like the color scheme of the viewer..) and using the python package. 
I noticed that the output is not identical, probably because in the online viewer, the hemisphere labels are flipped, but
the data is not (so it's not a matter of radiological or neurological orientation). 

I've checked the values in my data and they correspond to the lateralization of the maps in Mango and FSLeyes, but
not to what I see in the Neurosynth viewer. What could be going on here? 

Many thanks for any suggestions!

Best regards

Louise

[Tal Yarkoni]

Hi Louise,

The displayed L/R labels for the online images are definitely correct, as you can see by picking a heavy lateralized term like language:

http://neurosynth.org/analyses/terms/language/

It's possible that there's something in the image header that's incorrect, but I think it's more likely that you're seeing different values because (if I recall correctly—it's been a while) the images are downsampled for the web. So you will probably see slightly different values rendered online than in the downloaded/generated volume.

If you dig into it further and still have issues, feel free to folow up.

Best,

Tal

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