Comment Different Interpretation (Score 1) 586
The right temporo-parietal lobe junction is well known as the language integration area. The article states these people had this region of their brain, known otherwise as Wernicke's area, altered by magnetic fields, and then READ A STORY and were asked to make a moral judgment on it. This sounds a lot more like auditory processing to me, and I'll give more reason. Individuals with an infarction in this region of the brain are classically unable to note emotional changes in individuals based on speech cues.
It seems most likely (Occam's Razor) to me, that these individuals had their auditory association areas monkeyed with, and ended up being less able to pick-up emotional cues in the reader's voice, which have remarkable amounts of data in regard to the transmission of information. To these people in the experiment, the reader might have sounded like a drab and boring reader, and to the controls the same reading may have been filled with emotional information. These emotional cues are powerful motivators to come to a consensus opinion even among people of disparate moral backgrounds.
I did not read any more of the article than that, it is feasible to control for some of these aspects or to use a different experimental design to confirm the hypothesis, but I would be very careful in claiming that this is some sort of moral core of the brain. It's also been shown that magnetic fields caused agitation, and agitated people are less likely to be compassionate. I suffer from relatively constant pain from migraines and some other things, and I know most people think I'm a jerk when they first encounter me, but I am just less tolerant of people complaining (I'm actually fairly empathic and empathetic, which makes it even worse to have lousy people near me).
It seems most likely (Occam's Razor) to me, that these individuals had their auditory association areas monkeyed with, and ended up being less able to pick-up emotional cues in the reader's voice, which have remarkable amounts of data in regard to the transmission of information. To these people in the experiment, the reader might have sounded like a drab and boring reader, and to the controls the same reading may have been filled with emotional information. These emotional cues are powerful motivators to come to a consensus opinion even among people of disparate moral backgrounds.
I did not read any more of the article than that, it is feasible to control for some of these aspects or to use a different experimental design to confirm the hypothesis, but I would be very careful in claiming that this is some sort of moral core of the brain. It's also been shown that magnetic fields caused agitation, and agitated people are less likely to be compassionate. I suffer from relatively constant pain from migraines and some other things, and I know most people think I'm a jerk when they first encounter me, but I am just less tolerant of people complaining (I'm actually fairly empathic and empathetic, which makes it even worse to have lousy people near me).