Post hoc subsidiary analyses with Bonferroni adjustment for multiple comparisons demonstrated that the validity effect of the symbolic cues was only observed if associated with the "attend-to-colour" instruction [F 1, 17) = 10.50, p = .005].
We manipulated the highly-saturated colour of the instructions, fixation cross and on-screen stimuli.
In total, there were 30 trials in each of the experimental conditions of interest available for analysis, based on the factors of instruction (speed, colour), rhythm (valid, neutral), symbolic cues (valid, neutral), and occlusion period (short, long).
Blocks with the two different instructions ("speed" or "colour") were presented in an interleaved fashion, and the order was counterbalanced across participants.
Specifically, we varied the colour of the fixation cross, instructions and target boundaries.
The subjective ratings were obtained by presenting the relevant background colour and presenting standardized rating instructions via headphones.
In the explicit instruction condition (n = 15), participants were instructed to intentionally search for the colour sequence, whereas in the implicit instruction condition (n = 15), they were left uninformed about the sequenced nature of the task.
Assays were performed according to the manufacturer's instructions using 4-colour flow cytometry FC-500 (Beckman Coulter, Miami, FL, USA).
On another front, Jarecki is suing a company called Smart Beauty USA, alleging that its Smart Bikini Colour line copies not only the instructions from Jarecki's Web site, but also the logo on her packaging.
However, whilst the rhythmic cueing effects were impervious to instruction, the effects of symbolic cues were contingent on the instruction to attend to colour.
