@dr_rug_pull
The website that article can be found is from the Aphantasia Network. Lots more information and resources including links to assessments. At least for Aphantasia. In regard to SDAM assessment tools, I’m not sure.
@AqiDraco
Thank you. I'll need to read more, but I don't at this point think In see anything. I feel like there's a flash, upfront, but more reading required.