RT Journal Article A1 Grzeczkowski, Lukasz A1 Cretenoud, Aline F. A1 Mast, Fred W. A1 Herzog, Michael H. T1 Motor response specificity in perceptual learning and its release by double training JF Journal of Vision JO Journal of Vision YR 2019 DO 10.1167/19.6.4 VO 19 IS 6 SP 4 OP 4 SN 1534-7362 AB Perceptual learning is usually feature-specific. Recently, we showed that perceptual learning is even specific for the motor response type. In a three-line bisection task, participants indicated whether the central line was offset either to the left or right by pressing a left or a right button, respectively. We found no transfer when the same participants adjusted the offset by using a computer mouse. Here, we first show that perceptual learning with mouse adjustments transfers to the untrained hand, but only for the trained adjustment condition. There was no transfer to the button press conditions, neither for the trained nor the untrained hand. Second, we show that a double training procedure enables transfer from the mouse adjustment to the button press condition. Hence, the specificity of perceptual learning to the motor response type can be overcome by double training as it is the case for visual features. Our results suggest that during perceptual learning, perceptuo-decisional signals are encoded together with the corresponding actions. RD 4/20/2021 UL https://doi.org/10.1167/19.6.4