2018
DOI: 10.1007/s00221-018-5186-6
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How removing visual information affects grasping movements

Abstract: Our interaction with objects is facilitated by the availability of visual feedback. Here, we investigate how and when visual feedback affects the way we grasp an object. Based on the main views on grasping (reach-and-grasp and double-pointing views), we designed four experiments to test: (1) whether the availability of visual feedback influences the digits independently, and (2) whether the absence of visual feedback affects the initial part of the movement. Our results show that occluding (part of) the hand’s… Show more

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Cited by 22 publications
(14 citation statements)
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“…This is consistent with the individual digits being controlled on the basis of visual feedback, rather than grip aperture being controlled, which is incompatible with the visuomotor-channel hypothesis. In this context, it is important to realize that knowing whether one will have visual information for online control, for instance, because one can see that some parts of the digits' trajectories will be occluded, influences details of the digits' trajectories (Bozzacchi et al 2018).…”
Section: Online Controlmentioning
confidence: 99%
“…This is consistent with the individual digits being controlled on the basis of visual feedback, rather than grip aperture being controlled, which is incompatible with the visuomotor-channel hypothesis. In this context, it is important to realize that knowing whether one will have visual information for online control, for instance, because one can see that some parts of the digits' trajectories will be occluded, influences details of the digits' trajectories (Bozzacchi et al 2018).…”
Section: Online Controlmentioning
confidence: 99%
“…Bozzacchi, Brenner, Smeets, Volcic, & Domini, 2018). 4748A more recent study byPaulun et al (2016), which investigated how material properties and object 49 orientation affect grasping, serendipitously contained two experimental conditions that can be used to 50 contrast the object visibility hypothesis against the minimum reach hypothesis(Figure 1).…”
mentioning
confidence: 99%
“…It is therefore not surprising that withholding information about the contact points or how they can be reached can influence the whole grasping movement. This has been demonstrated for haptic information (Cuijpers et al 2008;Schenk 2012;Davarpanah Jazi and Heath 2016) as well as for visual information Bozzacchi et al 2018). We therefore designed our set-up in a manner that provided our participants with both visual and haptic feedback near the point of contact, despite restricting the visual feedback to the last part of the digits' trajectories.…”
Section: Discussionmentioning
confidence: 99%