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Related Concept Videos

Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex. This...

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Related Experiment Video

Updated: Jul 5, 2026

Tactile Semiautomatic Passive-Finger Angle Stimulator (TSPAS)
04:40

Tactile Semiautomatic Passive-Finger Angle Stimulator (TSPAS)

Published on: July 30, 2020

Selection in touch: negative priming with tactile stimuli.

Christian Frings1, Regine Bader, Charles Spence

  • 1Saarland University, Faculty of Behavioral Sciences, Department of Psychology, Saarbrülcken, Germany. c.frings@mx.uni-saarland.de

Perception & Psychophysics
|May 8, 2008
PubMed
Summary
This summary is machine-generated.

This study demonstrates that tactile attention involves actively ignoring distracting stimuli, similar to visual and auditory attention. Researchers observed reaction time costs when previously ignored tactile stimuli became targets, confirming tactile selection mechanisms.

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Last Updated: Jul 5, 2026

Tactile Semiautomatic Passive-Finger Angle Stimulator (TSPAS)
04:40

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Published on: July 30, 2020

Testing Tactile Masking between the Forearms
08:05

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Published on: February 10, 2016

A Tactile Automated Passive-Finger Stimulator (TAPS)
19:44

A Tactile Automated Passive-Finger Stimulator (TAPS)

Published on: June 3, 2009

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Sensory Perception

Background:

  • Attentional selection is well-established in visual and auditory modalities.
  • Selection involves amplifying targets and suppressing distractors.
  • Mechanisms of tactile attentional selection remain less understood.

Purpose of the Study:

  • To investigate tactile attentional selection.
  • To analyze the effects of ignoring tactile distractors.
  • To adapt the negative priming paradigm for tactile stimuli.

Main Methods:

  • A novel tactile variant of the negative priming paradigm was developed.
  • Two experiments were conducted using vibrotactile stimuli.
  • Reaction times (RTs) were measured to assess selection costs.

Main Results:

  • Significant RT costs were observed when a previously ignored vibrotactile stimulus was presented as the target.
  • This indicates a processing cost associated with previously ignored tactile information.

Conclusions:

  • Tactile selection is achieved, in part, through the active ignoring or suppression of distractor representations.
  • These findings align with established mechanisms of attentional selection in other sensory modalities.