<i>Top Panel</i>: Examples of test stimuli (pointed hands), and adaptors, (arrow and pointed hands) at different orientations.

<p><b><i>Bottom Panel</i></b>: Sample of the experimental protocol. This included a baseline phase where participants judged the pointing direction of test hands at 5 orientations 0°, 0.75° right, 0.75° left, 1.5° right, 1.5° left. Followed by a long adaptation phase where participants viewed a series of adaptors (either hands or arrows). The long adaptation period, ~ 4mins, was immediately followed by a post-adapt top up and test block. Each top up adaptor—left and right hands (<i>same-adaptation)</i> or arrows (<i>cross-adaptation</i>) pointing 10° left or right of the skillet—was presented for 6000ms followed by a test stimulus for 400ms.