Scenario: Grace and her husband visit a factory. She makes a coffee for her husband, and:
Situation 1: She finds a white powder labelled "Sugar" next to the coffee machine and puts it into her husband's coffee. The powder is sugar.
Situation 2: She finds a white powder labelled
"Sugar" next to the coffee machine and puts it into her husband's coffee. The powder is poison, and he dies.
Situation 3: She finds a white powder labelled
"Poison" next to the coffee machine and puts it into her husband's coffee. The powder is sugar, so he isn't harmed.
People were supposed to vote how much blame Grace deserves in each case, on a scale of 1 (little) to 7 (a lot), the average results were:
Scenario 1 (she thinks it's sugar and it is sugar): 1
Scenario 2 (accidentially kills him): 3
Scenario 3 (attempts to kill him, but fails): 6
During the tests of scenario 2 (Grace thinks she puts sugar into her husband's coffee, but it is poison), a special region of the brain associated with empathy was checked for activity (the region is called RTPJ). That graph showing the coherence of RTPJ activity and judgement how much grace should be blamed, is shown at
10:45:
People with low RTPJ response said that Grace should be blamed more in average. The higher the RTPJ response, the less the person blamed Grace for the accident.
This means: High RTPJ activity means, that the person judges an action more based on the intention of the action, and less on the outcome.
Low RTPJ activity means, that the person judges an action more based on the outcome, and less on the intention behind it.
Also, another test was done. This time, a strong magnetic pulse disrupted the probands' RTPJ. The average results (How much blame does Grace deserve, on a scale of 1-7):
Scenario 1 (Everything is fine): 1
Scenario 2 (Accidentially kills him): 4
Scenario 3 (failed attempt to kill him): 5
So, when the RTPJ is disrupted, people indeed do pay less attention to Grace's intention, but more on the outcome of her actions, when asked for how much they blame her