Hand-Selective Visual Regions Represent How to Grasp 3D Tools: Brain Decoding during Real Actions
نویسندگان
چکیده
منابع مشابه
Hand synergies during reach-to-grasp.
An emerging viewpoint is that the CNS uses synergies to simplify the control of the hand. Previous work has shown that static hand postures for mimed grasps can be described by a few principal components in which the higher order components explained only a small fraction of the variance yet provided meaningful information. Extending that earlier work, this study addressed whether the entire ac...
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We consider the representation of a visual speciication within a highly integrated environment which provides specialized support for the associated visual language. We state that such an environment needs to represent a visual speciication at four levels in order to perform its tasks: (1) the physical layout, (2) the pictorial structure, (3) the abstract structure , and (4) the representation ...
متن کاملVisual Adaptation to Goal-directed Hand Actions
Prolonged exposure to visual stimuli, or adaptation, often results in an adaptation "aftereffect" which can profoundly distort our perception of subsequent visual stimuli. This technique has been commonly used to investigate mechanisms underlying our perception of simple visual stimuli, and more recently, of static faces. We tested whether humans would adapt to movies of hands grasping and plac...
متن کاملDecoding natural reach-and-grasp actions from human EEG.
OBJECTIVE Despite the high number of degrees of freedom of the human hand, most actions of daily life can be executed incorporating only palmar, pincer and lateral grasp. In this study we attempt to discriminate these three different executed reach-and-grasp actions utilizing their EEG neural correlates. APPROACH In a cue-guided experiment, 15 healthy individuals were asked to perform these a...
متن کاملDifferent brain correlates for watching real and virtual hand actions.
We investigated whether observation of actions reproduced in three-dimensional virtual reality would engage perceptual and visuomotor brain processes different from those induced by the observation of real hand actions. Participants were asked to passively observe grasping actions of geometrical objects made by a real hand or by hand reconstructions of different quality in 3D virtual reality as...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 2021
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.0083-21.2021