Although the brain is considered as the more important « sexual organ », the function of human brain in the emergence of the sexual response is not enough known.

In the end of session participant will have to be able to: 1) understand neurobiological processes active in the sexual desire and its physiopathology; 2) know to recognize a sexual desire disorder; and 3) inform the concerned public and propose a therapeutic guidance for these patients.

Detailed analysis of the literature review through the researches in neurochemistry and functional neuro-imagery (PET scan, fMRI).

At present, many neuroscientific researches allow us to understand the processes active in the sexual behaviors (emotional and cognitive). Indeed, the « loving modules » are located in four areas with particular functioning. The cingular cortex plays a part in emotions recognition, the insula integrate sensory informations, and some parts of caudate nucleus and putamen are active by sexual excitation. Among many disorders slowing down the sexual desire, there is the hypoactive sexual desire.

The loving marks appear in the brain. The brain influences our sexual desire. This influence can be done on the both senses: activation or inhibition. Our imagination can raise our desire. But, our desire also depends on our education, our life experience and our current situation. Sexual desire could have two origins: either sensory organs, or imagination, or usually the both.