highly significantP < 10 −4
Every comparison reported highly significant differences: absolute initial angles for clockwise trials were smaller in the negative ( t 17 = -4.72, P < 10 −4 ) and positive contexts ( t 17 = -3.6, P = 0.001); for counter-clockwise perturbations the initial angles were also smaller in the negative ( t 17 = 4.03, P < 10 −4 ) and positive contexts ( t 17 = -3.61, P = 0.001, one-sided paired t-tests).