{"ID":2856499,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2510.11664","arxiv_id":"2510.11664","title":"Proprioceptive Misestimation of Hand Speed","abstract":"The accuracy with which the human proprioceptive system estimates hand speed is not well understood. To investigate this, we designed an experiment using hobby-grade mechatronics parts and integrated it as a laboratory exercise in a large remote laboratory course. In a simple joint position reproduction task, participants (N = 191) grasped a servomotor-driven shaft with one hand as it followed a randomized trajectory composed of sinusoidal submovements. They simultaneously attempted to reproduce the movement by turning the shaft of a potentiometer with the other hand. Focusing on the first movement of the trajectory, we found that participants consistently overestimated the speed of the slowest rotations by ~45% and underestimated the speed of the fastest rotations also by ~30%. Speed estimation errors were near zero for trajectories with peak velocities ~63 deg/s. Participants' movements also overshot slow trajectories and undershot fast trajectories. We show that these trajectory errors can be explained by a model in which the proprioceptive system integrates velocity misestimates to infer position.","short_abstract":"The accuracy with which the human proprioceptive system estimates hand speed is not well understood. To investigate this, we designed an experiment using hobby-grade mechatronics parts and integrated it as a laboratory exercise in a large remote laboratory course. In a simple joint position reproduction task, participa...","url_abs":"https://arxiv.org/abs/2510.11664","url_pdf":"https://arxiv.org/pdf/2510.11664v1","authors":"[\"Caitlin Callaghan\",\"David J Reinkensmeyer\"]","published":"2025-10-13T17:38:02Z","proceeding":"q-bio.NC","tasks":"[\"q-bio.NC\"]","methods":"[]","has_code":false}