PMID- 32784394 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2076-3425 (Print) IS - 2076-3425 (Electronic) IS - 2076-3425 (Linking) VI - 10 IP - 8 DP - 2020 Aug 8 TI - Preliminary Evidence of the Role of Medial Prefrontal Cortex in Self-Enhancement: A Transcranial Magnetic Stimulation Study. LID - 10.3390/brainsci10080535 [doi] LID - 535 AB - Humans employ a number of strategies to improve their position in their given social hierarchy. Overclaiming involves presenting oneself as having more knowledge than one actually possesses, and it is typically invoked to increase one's social standing. If increased expectations to possess knowledge is a perceived social pressure, such expectations should increase bouts of overclaiming. As the medial prefrontal cortex (MPFC) is sensitive to social pressure and disruption of the MPFC leads to decreases in overclaiming, we predicted that transcranial magnetic stimulation (TMS) applied to the MPFC would reduce overclaiming and the effects would be enhanced in the presence of social pressure. Twelve participants were given a test in which half of the words were real and half were fake, and they were asked how well they knew each word. They were not told that any of the words were fake. Half of the participants were exposed to social pressure while the other half were not. Following TMS delivered to the MPFC, overclaiming rates decreased, specifically under conditions of high social pressure. Medial PFC TMS did not influence real word responses and real words did not interact with the MPFC and social pressure. These preliminary findings support the significant role the MPFC plays in social cognition and the importance of the MPFC in mediating socially meaningful situations. We suggest the role of the MPFC as being highly influenced by the premium placed on social manipulation in human evolution. FAU - Taylor-Lillquist, Birgitta AU - Taylor-Lillquist B AD - Department of Biology, University of Virginia, Charlottesville, VA 22904, USA. FAU - Kanpa, Vivek AU - Kanpa V AD - Department of Engineering, Northeastern University, Boston, MA 02115, USA. FAU - Crawford, Maya AU - Crawford M AD - Department of Biology, Northeastern University, Boston, MA 02115, USA. FAU - El Filali, Mehdi AU - El Filali M AD - Department of Psychology, Wesleyan University, Middletown, CT 06457, USA. FAU - Oakes, Julia AU - Oakes J AD - Department of Psychology, Hamilton College, Clinton, NY 13323, USA. FAU - Jonasz, Alex AU - Jonasz A AD - Department of Biology, George Washington University, Washington, DC 20052, USA. FAU - Disney, Amanda AU - Disney A AD - Department of Dentistry, University of Indiana, Bloomington, IN 47405, USA. FAU - Keenan, Julian Paul AU - Keenan JP AD - Cognitive Neuroimaging Laboratory, 207 Science Hall, Montclair State University, Upper Montclair, NJ 07043, USA. LA - eng PT - Journal Article DEP - 20200808 PL - Switzerland TA - Brain Sci JT - Brain sciences JID - 101598646 PMC - PMC7464708 OTO - NOTNLM OT - deception OT - medial prefrontal cortex OT - overclaiming OT - self-deception OT - self-enhancement OT - social monitoring OT - social pressure OT - transcranial magnetic stimulation COIS- The authors declare no conflicts of interest. EDAT- 2020/08/14 06:00 MHDA- 2020/08/14 06:01 PMCR- 2020/08/01 CRDT- 2020/08/14 06:00 PHST- 2020/06/20 00:00 [received] PHST- 2020/08/05 00:00 [revised] PHST- 2020/08/06 00:00 [accepted] PHST- 2020/08/14 06:00 [entrez] PHST- 2020/08/14 06:00 [pubmed] PHST- 2020/08/14 06:01 [medline] PHST- 2020/08/01 00:00 [pmc-release] AID - brainsci10080535 [pii] AID - brainsci-10-00535 [pii] AID - 10.3390/brainsci10080535 [doi] PST - epublish SO - Brain Sci. 2020 Aug 8;10(8):535. doi: 10.3390/brainsci10080535.