Re:That's nice. (Score 2, Interesting)

if transcranial magnetic stimulation improves in accuracy and resolution, as it likely will over the next decade, we may be looking at a drug-free (read:side-effect free) way to treat depression by targeting these areas. hell, even implanted stimulating electrodes may help.

I'm not sure how well this method is examining "optimism" as much as it is expected rewards or punishments. optimism is someone's ability to look on the bright side of life and who can view the bad things more positively. that is not what they are doing here.