This is approximately in line with what studies on human responses depending on colour stimulus have found.
Sounds like it could just as well be cultural. “Red”, in particular, could easily get associated with “heat” in various cultures because of fire, but that doesn’t mean it’s hard-wired to the brain.
Sounds like it could just as well be cultural. “Red”, in particular, could easily get associated with “heat” in various cultures because of fire, but that doesn’t mean it’s hard-wired to the brain.