Biegstraten-Meeuws, M.

movement force object finger figure target contact index finger velocity position movement time digit index thumb condition obstacle subject direction chapter target object control smeet brenner change surface difficulty mlyer figure impact vinger one-target peak velocity brain research illusion mlyer trial hypothesis model one-target advantage two-target condition influence effect configuration distance component deceleration length difference study experiment advantage one-target condition research brain grip component point fins-out configuration impact force grip aperture chocolate flakes grip force approach two-target digit control hypothesis journal hoofdstuk timing grip control hypothesis biegstraaten aperture mon-william transport component brenner e lift-off moment value behaviour smeets jbj mlyer illusion speed relation