Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates
The present research investigates the neurophysiological activity elicited by fast observations of faces of real candidates during simulated political elections. We used simultaneous recording of electroencephalographic (EEG) signals as well as galvanic skin response (GSR) and heart rate (HR) as mea...
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doaj-bf840f2b16014b3e8c844c0256caba722020-11-24T23:13:28ZengHindawi LimitedComputational and Mathematical Methods in Medicine1748-670X1748-67182014-01-01201410.1155/2014/434296434296Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political CandidatesGiovanni Vecchiato0Jlenia Toppi1Anton Giulio Maglione2Elzbieta Olejarczyk3Laura Astolfi4Donatella Mattia5Alfredo Colosimo6Fabio Babiloni7Department of Physiology and Pharmacology, “Sapienza” University, Piazzale Aldo Moro 5, 00185 Rome, ItalyDepartment of Computer, Control, and Management Engineering, “Sapienza” University, Viale Ariosto 5, 00185 Rome, ItalyDepartment of Anatomy, Histology, Forensic Medicine and Orthopedics, “Sapienza” University, Via Borelli 50, 00185 Rome, ItalyNałęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, 4 Trojdena Street, 02-109 Warsaw, PolandDepartment of Computer, Control, and Management Engineering, “Sapienza” University, Viale Ariosto 5, 00185 Rome, ItalyIRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Rome, ItalyDepartment of Anatomy, Histology, Forensic Medicine and Orthopedics, “Sapienza” University, Via Borelli 50, 00185 Rome, ItalyDepartment of Physiology and Pharmacology, “Sapienza” University, Piazzale Aldo Moro 5, 00185 Rome, ItalyThe present research investigates the neurophysiological activity elicited by fast observations of faces of real candidates during simulated political elections. We used simultaneous recording of electroencephalographic (EEG) signals as well as galvanic skin response (GSR) and heart rate (HR) as measurements of central and autonomic nervous systems. Twenty healthy subjects were asked to give judgments on dominance, trustworthiness, and a preference of vote related to the politicians’ faces. We used high-resolution EEG techniques to map statistical differences of power spectral density (PSD) cortical activity onto a realistic head model as well as partial directed coherence (PDC) and graph theory metrics to estimate the functional connectivity networks and investigate the role of cortical regions of interest (ROIs). Behavioral results revealed that judgment of dominance trait is the most predictive of the outcome of the simulated elections. Statistical comparisons related to PSD and PDC values highlighted an asymmetry in the activation of frontal cortical areas associated with the valence of the judged trait as well as to the probability to cast the vote. Overall, our results highlight the existence of cortical EEG features which are correlated with the prediction of vote and with the judgment of trustworthy and dominant faces.http://dx.doi.org/10.1155/2014/434296 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Giovanni Vecchiato Jlenia Toppi Anton Giulio Maglione Elzbieta Olejarczyk Laura Astolfi Donatella Mattia Alfredo Colosimo Fabio Babiloni |
spellingShingle |
Giovanni Vecchiato Jlenia Toppi Anton Giulio Maglione Elzbieta Olejarczyk Laura Astolfi Donatella Mattia Alfredo Colosimo Fabio Babiloni Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates Computational and Mathematical Methods in Medicine |
author_facet |
Giovanni Vecchiato Jlenia Toppi Anton Giulio Maglione Elzbieta Olejarczyk Laura Astolfi Donatella Mattia Alfredo Colosimo Fabio Babiloni |
author_sort |
Giovanni Vecchiato |
title |
Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates |
title_short |
Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates |
title_full |
Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates |
title_fullStr |
Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates |
title_full_unstemmed |
Neuroelectrical Correlates of Trustworthiness and Dominance Judgments Related to the Observation of Political Candidates |
title_sort |
neuroelectrical correlates of trustworthiness and dominance judgments related to the observation of political candidates |
publisher |
Hindawi Limited |
series |
Computational and Mathematical Methods in Medicine |
issn |
1748-670X 1748-6718 |
publishDate |
2014-01-01 |
description |
The present research investigates the neurophysiological activity elicited by fast observations of faces of real candidates during simulated political elections. We used simultaneous recording of electroencephalographic (EEG) signals as well as galvanic skin response (GSR) and heart rate (HR) as measurements of central and autonomic nervous systems. Twenty healthy subjects were asked to give judgments on dominance, trustworthiness, and a preference of vote related to the politicians’ faces. We used high-resolution EEG techniques to map statistical differences of power spectral density (PSD) cortical activity onto a realistic head model as well as partial directed coherence (PDC) and graph theory metrics to estimate the functional connectivity networks and investigate the role of cortical regions of interest (ROIs). Behavioral results revealed that judgment of dominance trait is the most predictive of the outcome of the simulated elections. Statistical comparisons related to PSD and PDC values highlighted an asymmetry in the activation of frontal cortical areas associated with the valence of the judged trait as well as to the probability to cast the vote. Overall, our results highlight the existence of cortical EEG features which are correlated with the prediction of vote and with the judgment of trustworthy and dominant faces. |
url |
http://dx.doi.org/10.1155/2014/434296 |
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