Liars find it more rewarding to tell truth than fib
Toronto: Liars find it more rewarding to tell the truth rather than lying when deceiving others, a new research has found.
A University of Toronto research based on two neural imaging studies that monitored brain activity has found individuals are more satisfied to get a reward from telling the truth rather than getting the same reward through deceit.
"Our findings together show that people typically find truth-telling to be more rewarding than lying in different types of deceptive situations," said Professor Kang Lee from the University of Toronto.
The findings are based on two studies of Chinese participants using a new neuroimaging method called near-infrared spectroscopy.
The studies are among the first to address the question of whether lying makes people feel better or worse than truth-telling.
The studies explored two different types of deception. In first order deception, the recipient does not know the deceiver is lying.
In second order deception, the deceivers are fully aware that the recipient knows their intention, such as bluffing in poker.
The researchers were surprised to find that a liar's cortical reward system was more active when a reward was gained through truth-telling than lying. This was true in both first and second order deception.
Researchers also found that in both types of deception, telling a lie produced greater brain activations than telling the truth in the frontal lobe, suggesting lying is cognitively more taxing than truth-telling and uses more neural resources.
The research was published in journals Neuropsychologia and NeuroImage.
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