Search for two categories of target produces fewer fixations to target-color items
Journal of Experimental Psychology Applied (2012) - Comment
pubmed: 23294283  doi: 10.1037/a0031032  issn: 1939-2192  issn: 1076-898x 

Tamaryn Menneer, Michael J. Stroud, Kyle R. Cave, Xingshan Li, Hayward J. Godwin, Simon P. Liversedge, Nick Donnelly