Experiment 5: Visually ambiguous object.


<p><b>A.</b> The paradigm consisted of initial exposure to a visually ambiguous object with dynamics at 180° (yellow background), after which subjects perform alternating probe blocks (20 error-clamp trials) at one of two orientations (0° or 180°; green background) followed by re-exposure to the visually ambiguous object with dynamics at 180°. <b>B.</b> The right plot shows the composite trial-series for PD (all trials) and Adaptation (error-clamp probe blocks only). Grey shading shows ±SE across subjects. Each subject experienced the probe blocks in a pseudorandomized order. The trial-series has been rearranged in order of probe orientation (∆0° and ∆180°). The right plots show the corresponding measures averaged over the different probe blocks and over subjects (error-bars show SE across subjects; p-values are for two-tailed paired t-tests as indicated). Adaptation is taken from the probe blocks (right top, green background) and re-exposure PD is taken from the re-exposure blocks (right bottom, blue background). The model fits are shown in all panels for the CDM (blue) and ETM (red). <b>C.</b> A second group of subjects was exposed to the visually ambiguous object with dynamics at 0°. Results are plotted as in panel B.</p

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