[terzza]

Do you think that some form of dynamic time warping algorithm, performed on the data of each distinct group, could help give a better overall view of that group's behavior in a static heatmap image? Presuming participants share similar scanpaths within a group.

Just a thought, I understand the data may be too noisy / have too much variance for this to work in practice.

[lbarrow]

The problem with applying complicated algorithms to an infographic is that it makes it more difficult for the reader to know what exactly they are looking at. I think infographics should always have a "transparent" quality where a reasonably seasoned person could explain exactly what each individual point of data means. When you start applying sophisticated kernels to the data, this becomes hard to do.