Grasping discriminates between object sizes less not more accurately than the perceptual system

Funding: This work was supported by the DFG Priority Program SPP 1772 “Human performance under multiple cognitive task requirements: From basic mechanisms to optimized task scheduling” (DFG/SCHE 735/2-1) and also research funding from the following two projects: DFG/SCHE 735/3-1 und DFG/SCHE 735/4-1. Acknowledgments: We want to thank Lara Werner and Regina Härtl for help in data acquisition.Peer reviewedPublisher PD