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Related Concept Videos

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...
Sensory Functions of the Skin01:16

Sensory Functions of the Skin

The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
Responses to Gravity and Touch02:26

Responses to Gravity and Touch

Gravitropism: Plant Responses to Gravity
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...
Capacitors01:15

Capacitors

Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
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.

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Evidence of the conjunction fallacy in Rats (Rattus norvegicus) following two-lever choice training.

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Related Experiment Video

Updated: Jul 4, 2026

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
08:22

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor

Published on: February 16, 2018

Capacitive sensors for detecting proximity and response.

Steven W Badelt1, Aaron P Blaisdell

  • 1University of California, Los Angeles, California, USA.

Behavior Research Methods
|June 5, 2008
PubMed
Summary

We developed an inexpensive circuit to create versatile proximity sensors from metal objects. This non-contact technology detects subjects through barriers, applicable across various animal behavior studies.

Area of Science:

  • Behavioral Neuroscience
  • Biotechnology
  • Engineering

Background:

  • Traditional animal behavior monitoring often requires physical contact or complex setups.
  • Existing proximity detection methods may lack flexibility in sensor shape or material penetration.

Purpose of the Study:

  • To develop an inexpensive, adaptable circuit for creating non-contact proximity sensors.
  • To demonstrate the sensor's capability to detect subjects through nonconductive materials.
  • To showcase the technology's versatility across different experimental applications and animal species.

Main Methods:

  • Implementation of a low-cost electronic circuit.
  • Integration of the circuit with common metal surfaces or objects to form experimental sensors.
  • Testing the sensor's efficacy with various animal models (pigeons, rats, mice) in different configurations.

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Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique
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Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique

Published on: March 24, 2023

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Last Updated: Jul 4, 2026

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
08:22

Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor

Published on: February 16, 2018

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique
10:28

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique

Published on: March 24, 2023

Main Results:

  • The circuit successfully transforms metal into a proximity sensor without requiring physical contact.
  • Detection is effective through nonconductive materials like wood and plastics.
  • The sensor system demonstrated flexibility in applications such as nose-poke detection, location tracking, and perch occupancy sensing.

Conclusions:

  • This technology offers a simple, cost-effective solution for non-contact subject detection in behavioral research.
  • The adaptable sensor design facilitates integration into diverse experimental paradigms.
  • The system shows broad applicability for studying animal behavior across multiple species.