Effects of age of acquisition and priming on picture naming

Four experiments examined the interaction of age of acquisition (AoA) and priming on picture naming. Experiment 1 found that initial-letter priming and AoA significantly affected picture-naming latencies, but there was no interaction between them. Experiment 2 found that initial-phoneme priming and AoA significantly affected picture-naming latencies, but again there was no interaction. Experiment 3 repeated Barry, Hirsh, Johnston, and Williams's (2001) priming study using a very short interval between prime and target. Experiment 3 replicated previous findings of a significant interaction between priming and AoA. Experiment 4 repeated this investigation with a procedure that did not require participants to articulate the prime. Once again, there were significant effects of priming, AoA, and the interaction between them. The implications of these findings in relation to accounts of AoA and its locus of effect are discussed.