Studying the neurobiology of social interaction with transcranial direct current stimulation--the example of punishing unfairness.

@article{Knoch2008StudyingTN,
  title={Studying the neurobiology of social interaction with transcranial direct current stimulation--the example of punishing unfairness.},
  author={D. Knoch and Michael A. Nitsche and Urs Fischbacher and Christoph Eisenegger and Alvaro Pascual-Leone and Ernst Fehr},
  journal={Cerebral cortex},
  year={2008},
  volume={18 9},
  pages={1987-90}
}
Studying social behavior often requires the simultaneous interaction of many subjects. As yet, however, no painless, noninvasive brain stimulation tool existed that allowed the simultaneous affection of brain processes in many interacting subjects. Here we show that transcranial direct current stimulation (tDCS) can overcome these limits. We apply right prefrontal cathodal tDCS and show that subjects' propensity to punish unfair behavior is reduced significantly.