Fear Extinction to an Out-Group Face

@article{Navarrete2009FearET,
  title={Fear Extinction to an Out-Group Face},
  author={Carlos David Navarrete and Andreas Olsson and Arnold K. Ho and Wendy Berry Mendes and Lotte Thomsen and Jim Sidanius},
  journal={Psychological Science},
  year={2009},
  volume={20},
  pages={155 - 158}
}
Conditioning studies on humans and other primates show that fear responses acquired toward danger-relevant stimuli, such as snakes, resist extinction, whereas responses toward danger-irrelevant stimuli, such as birds, are more readily extinguished. Similar evolved biases may extend to human groups, as recent research demonstrates that a conditioned fear response to faces of persons of a social out-group resists extinction, whereas fear toward a social in-group is more readily extinguished. Here… 
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