Chapter 6. Influence of preparation time on language control
In this study we investigated how preparation time influences speed of naming single digits in three languages under frequent switch conditions. Twenty native speakers of English (mean age 19.9 years; 3 male) with good proficiency in French and German participated in a trilingual digit naming experiment with short (150ms) or long (1000ms) preparation time (between language cue and stimulus, CSI) and unpredictable switch sequence. Participants responded on average significantly faster on trials with long CSI (562ms) compared to short CSI (657ms). A 2 (Short vs. Long CSI) × 3 (L1, L2, L3) ANOVA showed a significant interaction. The preparation effect was largest for L1 (137ms) and decreased with decreasing proficiency (L2 84ms; L3 65ms). The paper describes preparation time in relation to naming speed, response accuracy, language proficiency and switching costs.