Sex, Lies and fMRI—Gender Differences in Neural Basis of Deception

Artur Marchewka , Katarzyna Jednoróg , Marcel Falkiewicz , W. Szeszkowski , Anna Grabowska , Iwona Szatkowska

Abstract

Deception has always been a part of human communication as it helps to promote self-presentation. Although both men and women are equally prone to try to manage their appearance, their strategies, motivation and eagerness may be different. Here, we asked if lying could be influenced by gender on both the behavioral and neural levels. To test whether the hypothesized gender differences in brain activity related to deceptive responses were caused by differential socialization in men and women, we administered the Gender Identity Inventory probing the participants’ subjective social sex role. In an fMRI session, participants were instructed either to lie or to tell the truth while answering a questionnaire focusing on general and personal information. Only for personal information, we found differences in neural responses during instructed deception in men and women. The women vs. men direct contrast revealed no significant differences in areas of activation, but men showed higher BOLD signal compared to women in the left middle frontal gyrus (MFG). Moreover, this effect remained unchanged when self-reported psychological gender was controlled for. Thus, our study showed that gender differences in the neural processes engaged during falsifying personal information might be independent from socialization.
Author Artur Marchewka (Wydział Psychologii)
Artur Marchewka,,
- Wydział Psychologii
, Katarzyna Jednoróg
Katarzyna Jednoróg,,
-
, Marcel Falkiewicz
Marcel Falkiewicz,,
-
, W. Szeszkowski
W. Szeszkowski,,
-
, Anna Grabowska (Wydział Psychologii)
Anna Grabowska,,
- Wydział Psychologii
, Iwona Szatkowska
Iwona Szatkowska,,
-
Journal seriesPlos One, ISSN 1932-6203, (A 35 pkt)
Issue year2012
Vol7 (8)
Pagesx-x
Publication size in sheets0
ASJC Classification1100 General Agricultural and Biological Sciences; 1300 General Biochemistry, Genetics and Molecular Biology; 2700 General Medicine
URL http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0043076
Languageen angielski
File
journal.jpg of 14-09-2015
2.87 MB
journal-pone-0043076.pdf of 14-09-2015
536.29 KB
Score (nominal)40
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2012 = 1.156; WoS Impact Factor: 2012 = 3.73 (2) - 2012=4.244 (5)
Citation count*
Additional fields
Dorobek Naukowy - Preview URLhttp://dn.swps.edu.pl/Podglad.aspx?WpisID=11625
Dorobek Naukowy - Approve URLhttp://dn.swps.edu.pl/Biuro/ZatwierdzanieWpisu.aspx?WpisID=11625
Cite
Share Share

Get link to the record


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back
Confirmation
Are you sure?