I think the bear was potentially a grizzly bear and I am perhaps at least somewhat confident about that. It isn't very visible in the video, but it appears near/going behind some trees/bushes at about 33-35 seconds, middle left of the video. As I perhaps have at least some recollection, when it started coming towards me, that is potentially about when I tried to get its attention. It didn't seem to notice or care, and it kept walking towards me, so I got out of the area.

Toxoplasma Gondii/toxoplasmosis might be associated with alterations/variations in the perceptions of cats. With humans, perhaps at least in part, potentially being associated with an increased affinity for cats.