Secondly, participants tend to evaluate faces in quasi-moral terms (i.e. as trustworthy or untrustworthy) depending on the cue validity of their gaze direction. Thirdly, by systematically varying not only the locations of targets, but also the objects (i.e. rectangular figures) in which those targets appeared, Marotta, Lupiánez, Martella, and Casagrande (2012) were able to show that faces, unlike arrows, trigger a pure location-based cueing effect, whereas arrows, unlike faces, trigger a pure object-based cueing effect. They interpret this finding as evidence that faces and arrows engage qualitatively different (i.e. location-based versus object-based) orienting mechanisms.