Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

872
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...
872
Design Example01:23

Design Example

638
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
638
MOS Capacitor01:25

MOS Capacitor

1.8K
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
1.8K
Feedback Inhibition00:46

Feedback Inhibition

58.5K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
58.5K
Effects of feedback01:24

Effects of feedback

1.1K
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
1.1K
Feedback control systems01:26

Feedback control systems

790
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
790

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Conservative management of aortic arch injury following penetrating trauma.

Annals of the Royal College of Surgeons of England·2015
Same author

Ninety-day versus thirty-day drug-dispensing systems.

American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists·2001
Same author

Minilaparotomy: an approach to postpartum tubal sterilization.

New York state journal of medicine·1987
Same author

Ectopic pregnancy: the laparoscope as a diagnostic aid.

The Journal of reproductive medicine·1980
Same author

Laparoscopy and electrosurgery.

American journal of obstetrics and gynecology·1977
Same author

The laparoscopist and electrosurgery.

American journal of obstetrics and gynecology·1976
Same journal

Embodied Care and Consent in Mediated Social Touch Interactions: A Study of the Interactive Artwork The Alien Between Us.

IEEE transactions on haptics·2026
Same journal

Investigating the Perception of Shape-Changing Haptic Interfaces.

IEEE transactions on haptics·2026
Same journal

Vibrations Feel Longer than their Visual Analogues in Virtual Reality.

IEEE transactions on haptics·2026
Same journal

Power from Potential: A Survey of Electrostatic Actuators for Haptics.

IEEE transactions on haptics·2026
Same journal

Investigating the Role of Vibrotactile Cue Sequencing in Inducing Intuitive Wrist Motion from a Stationary Pose.

IEEE transactions on haptics·2026
Same journal

Active Lubrication Brakes in Tabletop and Hand-Held Haptic Surgical Drilling Simulators.

IEEE transactions on haptics·2026
See all related articles

Related Experiment Video

Updated: Mar 24, 2026

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
05:57

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Published on: March 17, 2023

4.5K

Negative Feedback for Small Capacitive Touchscreen Interfaces: A Usability Study for Data Entry Tasks.

S P Parikh, J M Esposito

    IEEE Transactions on Haptics
    |March 11, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Negative vibrotactile feedback on touchscreens offers benefits comparable to positive feedback. Combining positive audio and negative vibrotactile signals significantly reduces user errors in text entry tasks.

    More Related Videos

    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

    2.8K
    Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects
    07:32

    Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

    Published on: September 1, 2016

    13.3K

    Related Experiment Videos

    Last Updated: Mar 24, 2026

    Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
    05:57

    Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

    Published on: March 17, 2023

    4.5K
    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

    2.8K
    Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects
    07:32

    Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

    Published on: September 1, 2016

    13.3K

    Area of Science:

    • Human-Computer Interaction
    • Haptics
    • Mobile Device Interfaces

    Background:

    • Touchscreens offer advantages like reconfigurable interfaces but require visual attention, leading to errors, especially on mobile devices.
    • Existing research on touchscreen feedback has focused solely on positive confirmation signals.
    • Negative feedback, indicating unintended touches, has not been explored for touchscreens.

    Purpose of the Study:

    • To investigate the efficacy of negative vibrotactile feedback on touchscreen interfaces.
    • To compare the performance of positive and negative vibrotactile feedback in a numerical data entry task.
    • To develop and evaluate a multimodal feedback strategy combining audio and vibrotactile signals.

    Main Methods:

    • A usability study comparing positive and negative vibrotactile feedback for numerical data entry.
    • Development of a multimodal feedback system integrating positive audio and negative vibrotactile signals.
    • User testing of the multimodal feedback system for text entry tasks.

    Main Results:

    • No statistically significant difference in performance between positive and negative vibrotactile feedback for numerical entry.
    • Multimodal feedback (positive audio + negative vibrotactile) resulted in a 24% reduction in corrective key presses during text entry compared to positive audio alone.
    • Users favored the multimodal feedback approach based on exit survey comments.

    Conclusions:

    • Negative vibrotactile feedback is a viable addition to touchscreen interfaces, offering benefits comparable to positive feedback.
    • Multimodal feedback strategies, particularly combining positive audio and negative vibrotactile signals, significantly enhance touchscreen usability and reduce user errors.
    • Further research into multimodal feedback is warranted to optimize user experience and performance on touch-based input devices.