This was originally the proof of concept spreadsheet for my brain scan lab. I realized that it might be useful on its own as an activity. You have to have excel to make this work,…I guess you might be able to use it with google sheets but I don’t know. Open the spreadsheet, and hit F9 to get a fresh “scan.” Areas with the most “activity” “light up.” You can edit the spreadsheet and change the colors if you want,…not sure that is necessary but it is fully editable. So how might you use this? May