Garnet Dupuis introduces brain signal variability, a field with ten distinct types that measure changes across frequencies, amplitude, spatial location, and time. Unlike heart rate variability, which just tracks intervals between beats, brain signals vary in multiple dimensions simultaneously.
Chapters
Right now, there are 10 different types of brain signal variability that you can examine. In brain signal variability, we're interested in things like, from one frequency to another, how much change happens? Or how about amplitude? How high does it spike or not spike? Or like, there, it gets too technical. But right now, unlike heart rate variability, where it is just a measure of time, All you're doing is you're measuring change in time. Is the beat between, is the time between one beat and another longer or shorter? That's all. So the dynamic is temporal. It's just time. Well, we can look at the brain variability in terms of time, but we can also look at it in terms of amplitude. We can look at it in terms of localization. So most of this is really new.