Figure 2. Behavioural results.

Displayed are responses to standard and odd probe tones under the narrow (in blue) and broad (in red) contexts. Reaction time was significantly shorter when it was accompanied by an odd probe tone rather than a standard tone regardless of the context (p = 0.002, ANOVA main effect), and more so when luminance changes were paired with odd probe tones in the narrow compared to the broad context (p = 0.043, ANOVA interaction, p = 0.0076 post-hoc t-test).