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Brain Response Influenced by Perceived Intentions
The study, published by Cell Press in the August 12 issue of the journal Neuron, makes some intriguing observations about how a description of the impact of an individual's actions on a group can alter the neural representation of their observed behavior.
When people judge another's actions, they often consider both the other person's outcome and their intentions. For example, in deciding whether a car salesperson's price is fair, people take into account both the price itself and their judgment of how honest the salesperson seems. To investigate how the brain combines these two kinds of information, researchers at the Trinity College Institute of Neuroscience in Dublin, Ireland, used functional magnetic resonance imaging to examine volunteers while they made judgments about others.
Participants observed players in a group economic game in which contributing benefitted the group and not contributing benefitted the individual players. Importantly, some participants had a "Donation" game with instructions about charity for the group, while the other participants had the same game described as a "Savings" game with instructions referring to risky investing and the stock market.
"We designed the framing conditions to engage or disengage participants' emotional response to the game, which meant that we could change how participants judged others without changing what they actually did," explains lead study author Dr. Jeffrey C. Cooper.
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