10.1371/journal.pone.0056934.g001 Pei-Ying Lin Pei-Ying Lin Naomi Sparks Grewal Naomi Sparks Grewal Christophe Morin Christophe Morin Walter D. Johnson Walter D. Johnson Paul J. Zak Paul J. Zak A Physiologic Model of Effective PSAs (PMEP). Public Library of Science 2013 physiologic psas 2013-02-28 09:28:47 Figure https://plos.figshare.com/articles/figure/_A_Physiologic_Model_of_Effective_PSAs_PMEP_/640770 <p>A physiologic model of attention and action is shown after viewing an advertisement with social content. We propose that attention will be reflected in a sympathetic nervous system response measurable by a change in ACTH. A response to the ad that results in an action will be driven by a change in OT. The model includes cases in which individuals do not attend to the ad and do not respond by engaging in an action after the ad.</p>