When Institutions Induce Trust: Insights from EEG and Timed-Response Experiments
University of California, Davis
affiliation not provided to SSRN
Mathew D. McCubbins
University of Southern California - Marshall School of Business, Gould School of Law and the Department of Political Science
March 27, 2009
Experiments in Political Science 2008 Conference Paper
While much is known about citizens' decisions to trust others, much less is known about the cognitive mechanisms underlying these decisions. Thus, we analyze both the behavior and brain activity associated with these decisions by replicating well known experiments on trust with electroencephalograph (EEG) and timed-response technology. Although our behavioral results are consistent with previous research, our EEG results reveal something about trust that we do not learn from observing subjects' decisions and reaction times. Specifically, they demonstrate that subjects process information differently when it comes from someone who is trustworthy by virtue of sharing common interests versus someone who is made trustworthy by an external institution. This processing difference exists even though subjects are equally likely to base their decisions upon the statements of these two trustworthy individuals, and even though they take the same amount of time to make their decisions. Given these differences between subjects' behavior and brain activity, it appears that recording EEGs adds a new dimension to our understanding of subjects' decisions to trust the statements of others.
Number of Pages in PDF File: 46
Keywords: trust, institution, decision, EEG, neuroscience, experiment, reaction time, cognition
JEL Classification: C90working papers series
Date posted: November 17, 2008 ; Last revised: March 30, 2009
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