Proportion of correct hand assignment across movement conditions (uncrossed-uncrossed, crossed-crossed) and SOA (60, 85, 110, 135 ms) in Experiment 2. Error bars denote 2 s.e. from the mean; asymmetry is due to nonlinear conversion from the GLMM’s logit scale to percentage correct. Large symbols are group means, small symbols are individual participants’ performance. TOJ performance in Experiment 2 was modulated by hand posture and SOA. A GLMM with factors posture (uncrossed-uncrossed, crossed-crossed) and SOA (60, 85, 110, 135 ms) revealed significant main effects of posture (χ
2(8,9)=586.94, p<0.001) and SOA (χ
2(6,9)=218.00, p<0.001), and a significant interaction (χ
2(6,9)=66.63, p<0.001). Post hoc analysis of the interaction (Bonferroni corrected, see in
Supplementary file 1) showed that TOJ performance was better when the arms were in an uncrossed compared to a crossed posture at all SOAs. Furthermore, performance increased with SOA duration for the uncrossed posture but was relatively similar across all SOAs for the crossed posture.