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 4/3/2020
UL https://doi.org/10.1167/19.6.4