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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.
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Related Experiment Video

Updated: Jan 18, 2026

Testing Tactile Masking between the Forearms
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Active Touch Intervention Using a Rough Texture Enhances Corticospinal Excitability.

Kako Tanabe1, Sho Kojima2,3, Kei Saito2,3

  • 1Graduate School, Niigata University of Health and Welfare, Niigata, Japan.

Brain and Behavior
|September 9, 2025
PubMed
Summary
This summary is machine-generated.

Active touch with rough textures enhances corticospinal excitability, while smooth textures show no effect. This suggests texture is key for tactile interventions impacting neural pathways.

Keywords:
active touch interventionmotor‐evoked potentialtexturetranscranial magnetic stimulation

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Area of Science:

  • Neuroscience
  • Human Physiology
  • Sensory Perception

Background:

  • Corticospinal excitability is crucial for motor control.
  • Understanding tactile sensory input's influence on neural pathways is important.

Purpose of the Study:

  • To investigate how different textures during active touch affect corticospinal excitability.
  • To determine if tactile intervention efficacy varies with texture properties.

Main Methods:

  • 30 healthy participants underwent active touch interventions.
  • Stimuli included smooth (silk) and rough (hessian) textures.
  • Transcranial magnetic stimulation measured motor-evoked potentials to assess corticospinal excitability.

Main Results:

  • A rough-textured stimulus significantly increased corticospinal excitability 15 minutes post-intervention.
  • A smooth-textured stimulus did not produce significant changes in corticospinal excitability.

Conclusions:

  • The impact of active touch interventions on corticospinal excitability is texture-dependent.
  • Rough textures may be more effective in modulating neural excitability through tactile stimulation.