RT Journal Article
SR Electronic
T1 Object visibility, not energy expenditure, accounts for spatial biases in human grasp selection
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 476101
DO 10.1101/476101
A1 Guido Maiello
A1 Vivian C. Paulun
A1 Lina K. Klein
A1 Roland W. Fleming
YR 2019
UL http://biorxiv.org/content/early/2019/01/10/476101.abstract
AB Humans exhibit spatial biases when grasping objects. These biases may be due to actors attempting to shorten their reaching movements and therefore minimize energy expenditures. An alternative explanation could be that they arise from actors attempting to minimize the portion of a grasped object occluded from view by the hand. We re-analyze data from a recent study, in which a key condition decouples these two competing hypotheses. The analysis reveals that object visibility, not energy expenditure, most likely accounts for spatial biases observed in human grasping.Author ContributionsGM, VCP, LKK and RWF conceived and designed the study. VP collected the data. GM and VP analyzed the data. All authors wrote the manuscript.