ArticleScientific reports2017
Bimanual grasping does not adhere to Weber's law.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Grasping tiny objects.Psychological research · 2024Article
- Bimanual Grasping Adheres to Weber's Law.i-Perception · 2021Article
- Active visuomotor interactions with virtual objects on touchscreens adhere to Weber's law.Psychological research · 2020Article
- When perception intrudes on 2D grasping: evidence from Garner interference.Psychological research · 2020Article
- A double dissociation between action and perception in bimanual grasping: evidence from the Ponzo and the Wundt-Jastrow illusions.Scientific reports · 2020Article
- Grasping Weber's Law in a Virtual Environment: The Effect of Haptic Feedback.Frontiers in psychology · 2020Article
- Obeying the law: speed-precision tradeoffs and the adherence to Weber's law in 2D grasping.Experimental brain research · 2019Article
- Weber's law in 2D and 3D grasping.Psychological research · 2019Article
- Shared right-hemispheric representations of sensorimotor goals in dynamic task environments.Experimental brain research · 2019Article
- Object complexity modulates the association between action and perception in childhood.Journal of experimental child psychology · 2019Article
- The influence of target distance on perceptual self-motion thresholds and the vestibulo-ocular reflex during interaural translation.Progress in brain research · 2019Article
- Variability in the Vestibulo-Ocular Reflex and Vestibular Perception.Neuroscience · 2018Article
- Hand anthropometry and the limits of aperture separation determine the utility of Weber's law in grasping and manual estimation.Experimental brain research · 2018Article
- On the response function and range dependence of manual estimation.Experimental brain research · 2018Article
- Dissociable effects of irrelevant context on 2D and 3D grasping.Attention, perception & psychophysics · 2018Article
- Mental Size Scaling of Three-Dimensional Objects Perceived Visually or Tactilely.Advances in cognitive psychology · 2018Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
According to Weber's law, a fundamental principle of perception, visual resolution decreases in a linear fashion with an increase in object size. Previous studies have shown, however, that unlike for perception, grasping does not adhere to Weber's law. Yet, this research was limited by the fact that perception and grasping were examined for a restricted range of stimulus sizes bounded by the maximum fingers span. The purpose of the current study was to test the generality of the dissociation between perception and action across a different type of visuomotor task, that of bimanual grasping. Bimanual grasping also allows to effectively measure visual resolution during perception and action across a wide range of stimulus sizes compared to unimanual grasps. Participants grasped or estimated the sizes of large objects using both their hands. The results showed that bimanual grasps violated Weber's law throughout the entire movement trajectory. In contrast, Just Noticeable Differences (JNDs) for perceptual estimations of the objects increased linearly with size, in agreement with Weber's law. The findings suggest that visuomotor control, across different types of actions and for a large range of size, is based on absolute rather than on relative representation of object size.
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