Journal: bioRxiv
Article Title: Interference Between Motor Memories Arises From Implicit Recalibration
doi: 10.64898/2026.04.23.720436
Figure Lengend Snippet: Disrupting parietal processing before implicit B learning attenuated interference. (A) Task progression in experiment 4. As in experiment 3, rotation B was learned under error-clamp feedback. However, cathodal hd-tDCS (2 mA, 20 minutes) was delivered over left PPC prior to B learning. (B) Example cursor trajectories from a representative participant during the early phase of adaptation to A 1 (red) and A 2 (blue). (C) Example cursor trajectories from the same participant during the late phase of learning in A 1 (red) and A 2 (blue). (D) Group-averaged hand deviation across bins (baseline: bins 1-6; A 1 : bins 7-31; B: bins 32-56; A 2 : bins 1-25 following the 24-hour delay). Shaded bands are SEM. (E) Group-averaged hand deviation curves for A 1 (red) and A 2 (blue) overlaid together. (F) Mean hand deviation during the early (first bin) and late (last bin) phases of A 1 and A 2 . (G) Mean reaction time, (H) movement time, and (I) peak velocity during A 1 and A 2 . Dots represent individual participants; bars indicate group means. Error bars represent SEM.
Article Snippet: In Experiment 4, hd-tDCS (Soterix Medical) was administered as participants performed the task in this apparatus; stimulation parameters are described later.
Techniques: