For each trial, the response button triggered the recording, and the aperture and force were determined from the recorded signals (averaged over 50 ms before till 50 ms after button press). One (reference) trial was discarded as the button was unintentionally pressed too early, i.e. within 50 ms from the start of the trial. The total dataset thus consists of 1799 trials instead of 1800: ten participants who performed sixty trials in each of the three stiffness conditions. The dataset is available via 4TU. Centre for Research Data (10.4121/21400218).
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