The negativity bias in affective picture processing depends on top-down and bottom-up motivational significance
Emotion (2014) - Comment
pubmed: 24866528  doi: 10.1037/a0036791  issn: 1931-1516  issn: 1528-3542 

Joseph Hilgard, Anna Weinberg, Greg Hajcak Proudfit, Bruce D. Bartholow