“…If activation above baseline speeds access to that word in semantic memory, response time (RT) can be a useful dependent measure of conceptual priming, as it frequently is in measuring perceptual priming (e.g., MacDonald & MacLeod, 1998;MacLeod & Masson, 2000). Horton and colleagues (Horton, Wilson, & Evans, 2001;Horton, Wilson, Vonk, Kirby, & Nielsen, 2005) have recently used RT data to demonstrate that explicit retrieval was not used in their tests of conceptual implicit memory. Other researchers (e.g., Light et al, 2000;Zeelenberg, 2005) have also demonstrated that RT is a valuable measure of conceptual implicit memory.…”