Dr. Shock has a post comparing how brains and minds work when thinking about Sex and Love.
But if love and lust aren’t completely the same, what different psychological effects do they have in humans? Researchers from The Netherlands and Germany proposed a cognitive model for the effects of love and sex. They hypothesized that , people start thinking globally, love entails wishes and goals of attachment, needing a long term perspective. Love triggers global processing in the brain. This is closely linked to creative thinking.
When people start processing cognitively details of objects, it exists in the here and now. Sex triggers local cognitive processing, this is closely linked to analytical thinking.