?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=A+new+view+on+grasping&rft.creator=Smeets%2C+Jeroen+B.J.&rft.creator=Brenner%2C+Eli&rft.subject=Cognitive+Psychology&rft.subject=Neurophysiology&rft.description=Reaching+out+for+an+object+is+often+described+as+consisting+of+two+components+that+are+based+on+different+visual+information.+Information+about+the+object%C2%92s+position+and+orientation+guides+the+hand+to+the+object%2C+while+information+about+the+object%C2%92s+shape+and+size+determines+how+the+fingers+move+relative+to+the+thumb+to+grasp+it.+We+propose+an+alternative+description%2C+which+consists+of+determining+suitable+positions+on+the+object+%C2%97+on+the+basis+of+its+shape%2C+surface+roughness%2C+and+so+on+%C2%97+and+then+moving+one%C2%92s+thumb+and+fingers+more+or+less+independently+to+these+positions.+We+modelled+this+description+using+a+minimum+jerk+approach%2C+whereby+the+finger+and+thumb+approach+their+respective+target+positions+approximately+orthogonally+to+the+surface.+Our+model+predicts+how+experimental+variables+such+as+object+size%2C+movement+speed%2C+fragility%2C+and+required+accuracy+will+influence+the+timing+and+size+of+the+maximum+aperture+of+the+hand.+An+extensive+review+of+experimental+studies+on+grasping+showed+that+the+predicted+influences+correspond+to+human+behaviour.&rft.date=1999&rft.type=Preprint&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F66%2F3%2Fgrasping.pdf&rft.identifier=++Smeets%2C+Jeroen+B.J.+and+Brenner%2C+Eli++(1999)+A+new+view+on+grasping.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F66%2F