Quote Originally Posted by Neurochem Int. 2004 Jun;44(8):595-600
The putative pheromone androstadienone activates cortical fields in the human brain related to social cognition.

Gulyas B, Keri S, O'Sullivan BT, Decety J, Roland PE.

Department of Neuroscience, Karolinska Institute, S-171 77 Stockholm, Sweden. [email protected]

Using 15O-butanol positron emission tomography (PET), we measured regional cerebral blood flow changes in five healthy young women during exposure to androstadienone, a putative human pheromone, as well as pleasant (gamma-methyl-ionone), unpleasant (methyl-thio-butanoate), and neutral (dipropylene glycol; vehicle compound) odours. Compared with the odorous substances, androstadienone activated a widely distributed neuronal network. Two large cortical fields exhibited consistent activation in each contrast: the anterior part of the inferior lateral prefrontal cortex (PFC) and the posterior part of the superior temporal cortex (STP). Intriguingly, these areas were deactivated by gamma-methyl-ionone and methyl-thio-butanoate. These brain regions can be identified as cortical fields underlying other than olfactory functions, including various aspects of social cognition and attention.
Summary: pheromones stimulate female brains