Figure 1

Experimental design. Shown is (A) pre-testing, familiarisation measures, and the two crossover blocks, followed by (B, inset) detail of one of the two 3-d experimental blocks.
Experimental design. Shown is (A) pre-testing, familiarisation measures, and the two crossover blocks, followed by (B, inset) detail of one of the two 3-d experimental blocks.