Vibro-tactile Masking
Vibro-tactile Masking - Related Videos
08:05
Testing Tactile Masking between the Forearms
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Cited by 2 •
2016
Here we explore contralateral tactile masking between the forearms in which tactile detection thresholds are modulated by vibration applied to a remote site. The details of which remote sites have an effect can tell us about how the body is represented in the brain.
05:43
Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
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2019
We present a protocol to apply incongruent visual-tactile stimuli during an object transfer task. Specifically, during block transfers, performed while the hand is hidden, a virtual presentation of the block shows random occurrences of false block drops. The protocol also describes adding vibrotactile feedback while performing the motor task.
10:14
Object Substitution Masking
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2023
Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Visual masking is a term used by perceptual scientists to refer to a wide range of phenomena in which in an image is presented but not perceived by an observer because of the presentation of a second image. There are several different kinds of masking, many of them relatively intuitive and unsurprising. But one surprising and important type of masking is called Object Substitution Masking. It has been a focus of research in vision...
08:57
Acute and Chronic Tactile Sensory Testing after Spinal Cord Injury in Rats
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Cited by 55 •
2012
We describe two tactile sensory testing methods for acute or chronic periods of spinal cord injury in rats. These validated procedures can detect the development and maintenance of allodynia-like sensations.
10:14
Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees (Apis mellifera L.)
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Cited by 9 •
2012
In this protocol we show how to condition harnessed honey bees to tactile stimuli and introduce a 2D motion capture technique for analyzing the kinematics of fine-scale antennal sampling pattern.
FAQs
The effect depends on how vibration relates in time and location to another tactile signal. A vibration presented simultaneously with, or near, pressure, contact, or movement can interfere with neural processing of that signal. These interactions help researchers determine whether reduced perception reflects competition between overlapping inputs rather than a change in the stimulus itself.
Vibration activates mechanoreceptors in the skin, allowing researchers to examine how one tactile input influences the processing of another. Observing changes in perception provides a way to study interactions among touch signals at the sensory level. This is relevant to questions about how the nervous system combines competing information before it guides perception or behavior.
Vibro-tactile masking can be used to investigate attention, sensory integration, and response selection. Researchers can examine whether a competing vibration changes how people detect or discriminate another tactile event, or how they respond to it. These outcomes connect sensory interference with behavioral decisions, rather than treating touch perception as an isolated process.
A vibrating stimulus can interfere with signals that occur at a nearby skin location, not only with inputs delivered at exactly the same point. This spatial relationship gives experiments a way to examine how tactile information is organized across the body. Comparing nearby and more separated signals can clarify the role of spatial interaction in perception.
A basic design compares responses to a tactile target presented alone with responses when vibration is also present. Researchers can then assess changes in detection, discrimination, or response selection. Varying whether the signals overlap in time or occur near one another links behavioral outcomes to the temporal and spatial interactions that produce masking.
Findings can guide the design of haptic interfaces, rehabilitation technologies, and prosthetic feedback systems. These applications must account for the possibility that one vibration may alter perception of another pressure, contact, or movement signal. Understanding competing tactile inputs can therefore support feedback systems that make important information easier to detect and interpret during behavior.