“…Jiang, Costello, & He, 2007;Yi Jiang, Yi, & Sheng, 2006;Merikle & Joordens, 1997) for reviews, see (Dehaene & Changeux, 2011;Yang, Brascamp, Kang, & Blake, 2014) . Thus, achieving highly accurate dual-task performance in tasks with complex stimuli such as faces does not guarantee that these discriminations are performed consciously (Jennings, 2015) . In fact, in combination with excessive training, there is reason to suspect that at least some aspects of successful discrimination under dual-task conditions may be a product of unconscious processing (Merikle & Joordens, 1997) .…”