How does sexual arousal work? How do humans get aroused by looking at a picture? How does it trigger?

Question

How does sexual arousal work? How do humans get aroused by looking at a picture? How does it trigger?

In: 4727

Answer 1

I’m fascinated by the subject of how Homo Sapiens changed to almost entirely different arousal triggers from the almost universal scent system in other vertebrates and simpler species. Could it be that there was some obscure advantage to there being a much greater female choice involved. Female hyenas are fairly dominant in their packs and have to cooperate if insemination is to be achieved. In Homo, perhaps the bonding affect of courtship has advantages over the rape process that is common in almost all nonhumans.