[Homer-users] AtlasViewer Help for Prefrontal Cortex NIRS Headband

[Meryem Ayse Yucel]

Hi Mike,

I'd suggest the following:

1) Use more springs including the midlines connecting your optodes.
2) Make your springs elastic by right clicking them (they appear dashed)
3) Choose your anchor points more sparse

Hope this helps.

Meryem

> Hi List,
>
> I am new to the AtlasViewer so sorry if this is a rudimentary question or
> I am overlooking a fundamental step.
>
> I am trying to make a probe for my Biopac fNIR headband that has 4 sources
> and 10 detectors in a very simple rectangular grid (example included
> below). Fp1 and Fp2 are to align horizontally to the midway point between
> the sources and lower row of detectors. I have made an SD file that I
> believe matches this set up exactly using real measurements from the
> headband and the center of each optode. When I add the springs, everything
> looks just like the schematic, however when I register the probes to the
> surface, it is a blob of jumbled points without any resemblance to the
> rectangular shape. It is also no where near where I expect it to be on the
> prefrontal cortex. I have also included the .SD file if that helps. Any
> support is appreciated and thanks.
>
> MIKE
>
>
> Michael S. Cannizzaro, Ph.D., CCC-SLP
>
> Associate Professor
>
> University of Vermont
> Department of Communication Sciences & Disorders - Graduate Program
> Coordinator
> Undergraduate Neuroscience Program
> 401 Pomeroy Hall
> 489 Main Street
> Burlington, VT 05405
>
> 1-802-656-9725
>
> michael.cannizzaro at uvm.edu
>
> http://www.uvm.edu/cmsi/
>
>
>
>
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