Sustained human chemosignal unconsciously alters brain function Jacob, Suma; Kinnunen, Leann H.; Metz, John; More Jacob, Suma; Kinnunen, Leann H.; Metz, John; Cooper, Malcolm; McClintock, Martha K. Less Neuroreport. 12(11):2391-2394, August 8, 2001. Abstract Abstract Favorite PDF Permissions Buy