“…Many studies have now demonstrated that unconscious primes cannot only be processed at the perceptual and motor levels (e.g., Dehaene et al, 2004;Dehaene et al, 2001;Eimer & Schlaghecken, 2003), but also afford high-level processing, such as semantic (Van den Bussche, Notebaert, & Reynvoet, 2009) or emotional processing (Naccache et al, 2005). More important to note, recent studies also demonstrated that conflict adaptation may be triggered by unconscious stimuli (Desender, Van Lierde, & Van den Bussche, 2013;Francken, Gaal, & de Lange, 2011;van Gaal, Lamme, & Ridderinkhof, 2010). It is generally assumed that high-level cognitive functions subtended by prefrontal cortex such as cognitive control can only be elicited consciously (Dehaene & Changeux, 2011).…”