Fig. 5.

Percentage of gradients chosen as ‘darker’ that had their darker side on the right, before and after the prism-adaptation procedure in the greyscale gradients lateral-preference task, for each individual patient. These data indicate no effect of prism adaptation on the very strong rightward bias in this task, irrespective of the degree of initial bias demonstrated. Patients are ordered along the x-axis in terms of the bias demonstrated in this task pre-adaptation.