Fixation Biases towards the Index Finger in Almost-Natural Grasping

PloS One
Dimitris VoudourisEli Brenner

Abstract

We use visual information to guide our grasping movements. When grasping an object with a precision grip, the two digits need to reach two different positions more or less simultaneously, but the eyes can only be directed to one position at a time. Several studies that have examined eye movements in grasping have found that people tend to direct their gaze near where their index finger will contact the object. Here we aimed at better understanding why people do so by asking participants to lift an object off a horizontal surface. They were to grasp the object with a precision grip while movements of their hand, eye and head were recorded. We confirmed that people tend to look closer to positions that a digit needs to reach more accurately. Moreover, we show that where they look as they reach for the object depends on where they were looking before, presumably because they try to minimize the time during which the eyes are moving so fast that no new visual information is acquired. Most importantly, we confirmed that people have a bias to direct gaze towards the index finger's contact point rather than towards that of the thumb. In our study, this cannot be explained by the index finger contacting the object before the thumb. Ins...Continue Reading

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References

Jan 1, 1988·Experimental Brain Research·W G DarlingJ H Abbs
May 1, 1983·The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology·A M Wing, C Fraser
Jun 1, 1996·Experimental Brain Research·J B SmeetsD H Ballard
Apr 1, 1996·Journal of Experimental Psychology. Human Perception and Performance·J N Vickers
Jul 20, 1999·Motor Control·J B Smeets, E Brenner
Dec 2, 2000·Nature Neuroscience·M F Land, P McLeod
Aug 3, 2001·Experimental Brain Research·J B Smeets, E Brenner
Nov 28, 2002·Journal of Motor Behavior·P Haggard, A Wing
Dec 13, 2002·Experimental Brain Research·Aftab E Patla, Joan N Vickers
Apr 8, 2003·Journal of Vision·Mary M HayhoeJeff B Pelz
May 23, 2003·Journal of Experimental Psychology. Human Perception and Performance·Richard Wilkie, John Wann
Aug 19, 2003·Experimental Brain Research·S RiekR G Carson
Jan 30, 2004·Journal of Neurophysiology·Raymond H CuijpersEli Brenner
Nov 25, 2005·Experimental Brain Research·Marianne BiegstraatenEli Brenner
Jan 17, 2009·Journal of Vision·Denise D J de GraveVolker H Franz
Mar 11, 2009·Journal of Vision·Anne-Marie BrouwerKarl R Gegenfurtner
Jan 26, 2010·Journal of Neuroscience Methods·Willemijn D SchotJeroen B J Smeets
Jun 23, 2010·Experimental Brain Research·Willemijn D SchotJeroen B J Smeets
Sep 8, 2010·Experimental Brain Research·Dimitris VoudourisJeroen B J Smeets
May 31, 2011·Journal of Vision·Benjamin W TatlerDana H Ballard
Dec 21, 2011·Experimental Brain Research·Mary M HayhoeJeff B Pelz
Aug 4, 2012·Journal of Motor Behavior·D VoudourisE Brenner
Aug 18, 2012·Experimental Brain Research·Dean R Melmoth, Simon Grant
Dec 15, 2012·Experimental Brain Research·Steven L Prime, Jonathan J Marotta
Jul 12, 2013·Journal of Neurophysiology·D VoudourisE Brenner

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Citations

Feb 6, 2018·Experimental Brain Research·Chiara BozzacchiFulvio Domini
Apr 21, 2018·Experimental Brain Research·Clara CámaraEli Brenner
Jul 26, 2017·Attention, Perception & Psychophysics·Dimitris Voudouris, Katja Fiehler
Oct 26, 2018·Scientific Reports·Georgiana JuravleAlessandro Farnè
Sep 1, 2018·Journal of Vision·Dimitris VoudourisEli Brenner
May 10, 2020·Experimental Brain Research·Matsya R ThulasiramJonathan J Marotta
Mar 10, 2019·Experimental Brain Research·Simon Grant, Miriam L Conway
Apr 17, 2021·Experimental Brain Research·Ryan W Langridge, Jonathan J Marotta
May 27, 2020·Human Movement Science·Ryan W Langridge, Jonathan J Marotta
Nov 18, 2021·Experimental Brain Research·Hana H AbbasJonathan J Marotta

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