The Picture-Word Interference Paradigm: Grammatical Class Effects in Lexical Production.

Four picture-word interference experiments aimed to test the role of grammatical class in lexical production. In Experiment 1 target nouns and verbs were produced in presence of semantically unrelated distractors that could also be nouns and verbs. Participants were slower when the distractor was of the same grammatical category of the target.

Word production and the picture-word interference paradigm: the role of learning.

Psycholinguistic experiments conducted with the picture-word interference paradigm are typically preceded by a phase during which participants learn the words they will have to produce in the experiment. In Experiment 1, the pictures (e.g.