(a) During clamped visual feedback, the angular deviation of the cursor feedback is held constant throughout the perturbation block, and participants are fully informed of the manipulation. (b) The clamp angle was equal across all three conditions tested in Experiment 1, with only the target size varying between conditions. (c) Block design for experiment. (d) As in previous studies with clamped feedback, the manipulation elicits robust changes in hand angle. However, the effect was attenuated in the Hit Target condition, observed in the (e) rate of early adaptation, and, more dramatically, in (f) late learning. (g) The proportion of learning retained over the no feedback block following the clamp did not differ between groups. Dots represent individuals; shading and error bars denote SEM.