Biegstraaten, M.

peak grip aperture movement illusion movement time aperture conwguration velocity m üller wgure grip closure wns-out conwguration hypothesis m üller illusion size hypothesis closure evect position üller smeet wgure subject object inxuence accuracy hypothesis contact accuracy brain brenner wns-in conwguration change wns-out grip aperture action information wns-in perception wnal velocity wnger shaft model moment ebbinghaus illusion index wnger franz right digit length grip closure velocity result prediction westwood 1.5 mm hypotheses parameter diverence approach parameter study screen ebbinghau ovset biegstraaten index goodale value movement ovset peak velocity wns inxuence judgements 2- mm processing vision timing wnal grip closure thumb closure velocity brenner · j inset target psychol approach experiment frame