Virtual Hand Illusion
Virtual Hand Illusion - Related Videos
08:09
The Rubber Hand Illusion
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Reaching for objects, walking without hitting obstacles, landing on a chair as you sit (instead of falling to the floor), these and all our physical actions depend on an ability to perceive our own bodies in space, to know where our limbs are relative to one another and relative to the rest of the world. One way that the human brain encodes this information is called proprioception, the brain relies on its own control and feedback...
06:53
Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation
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Cited by 16 •
2017
Here, we describe virtual-hand and virtual-face illusion paradigms that can be used to study body-related self-perception/-representation. They have already been used in various studies to demonstrate that, under specific conditions, a virtual hand or face can be incorporated into one's body representation, suggesting that body representations are rather flexible.
06:43
The Crossmodal Congruency Task as a Means to Obtain an Objective Behavioral Measure in the Rubber Hand Illusion Paradigm
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Cited by 22 •
2013
We demonstrate how an objective measure can be employed in the widely employed rubber hand illusion paradigm. This measure is obtained by modifying the well-established crossmodal congruency task. This task allows the investigation of multisensory processes which are critical for modulations of body representations as in the rubber hand illusion.
05:12
Using Virtual Reality to Transfer Motor Skill Knowledge from One Hand to Another
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Cited by 11 •
2017
We describe a novel virtual-reality based setup which exploits voluntary control of one hand to improve motor-skill performance in the other (non-trained) hand. This is achieved by providing real-time movement-based sensory feedback as if the non-trained hand is moving. This new approach may be used to enhance rehabilitation of patients with unilateral hemiparesis.
11:00
Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface
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Cited by 6 •
2016
We demonstrate the precise manipulation of individual organic molecules on a metal surface with the tip of a scanning probe microscope driven in 3D by the experimenter's hand using a motion capture system and fully immersive virtual reality goggles.
FAQs
Synchronization is the key condition that helps produce the illusion. When the virtual hand is seen at the same time that the real hand receives touch or performs a movement, vision can be integrated with tactile and proprioceptive information. This alignment lets researchers examine how multisensory signals contribute to body ownership and self-representation.
Proprioception provides information about the position and movement of the real hand. The brain can compare this internal information with what the participant sees and feels. Including proprioceptive signals therefore helps researchers investigate how vision, touch, and body-position information are combined during changes in perceived ownership and self-representation.
The method supports research on multisensory integration, motor control, and self-representation. It also allows investigators to study how people respond to virtual bodies and how visual information about an artificial limb influences behavior. These uses connect perceptual changes with the control of movement and the way people represent their own bodies.
A typical experiment presents a computer-generated or virtual hand while researchers apply tactile stimulation to, or record movements from, the participant’s real hand. The visual event and physical stimulation or movement are coordinated in time. Researchers can then examine how this multisensory arrangement affects perceived ownership, motor control, or behavioral responses.
These experiments show how the brain combines signals from different sensory sources to support a coherent representation of the body. By coordinating visual information with touch and proprioception, researchers can examine the contribution of each signal to body ownership and self-representation. The resulting observations also inform studies of movement and responses to virtual bodies.
Findings can inform virtual reality, rehabilitation, human-computer interaction, and the design of immersive behavioral experiments. In these settings, the method provides a way to study how virtual body representations influence perception, movement, and behavior. Its relevance extends beyond basic behavior research because it links multisensory processing with the design of interactive virtual experiences.