Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The Hall Effect

The Hall Effect

Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.

Inductors

Inductors

An inductor, also known as a choke, is a circuit component created to have a specific inductance. Inductors are among the crucial circuit components used in modern electronics, along with resistors and capacitors. They serve as a barrier against changes in a circuit's current. An inductor tends to suppress current changes in an alternating-current circuit that are faster than desired. In a direct-current circuit, an inductor aids in preserving a constant current despite changes in the applied...

PI Controller: Design

PI Controller: Design

Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...

Power System Three-Phase Short Circuits

Power System Three-Phase Short Circuits

Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...

Line Protection with Impedance Relays

Line Protection with Impedance Relays

Coordinating time-delay overcurrent relays in complex radial systems and directional overcurrent relays in multi-source transmission loops can be challenging. Impedance relays address these issues by responding to the voltage-to-current ratio, specifically measuring the apparent impedance of a line. These relays become more sensitive during faults as current increases and voltage decreases, thereby reducing the apparent impedance.
Under normal conditions, low load currents keep the measured...

Common Leveling Mistakes and Errors

Common Leveling Mistakes and Errors

A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...

You might also read

Related Articles

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

Sort by

Same author

Like choosing between guitars: acoustic, electroacoustic, and electric stimulation in paediatric cochlear implant candidates with residual hearing.

Cochlear implants international·2026

Same author

Hearing aid outcomes in Singapore's public health service: a cross-sectional study.

Singapore medical journal·2023

Same author

Anthropogenic platinum group element (Pt, Pd, Rh) concentrations in PM10 and PM2.5 from Kolkata, India.

SpringerPlus·2016

Same author

Double-pass Mach-Zehnder fiber interferometer pH sensor.

Journal of biomedical optics·2014

Search research articles

Related Experiment Video

Updated: Jul 8, 2026

High Density Event-related Potential Data Acquisition in Cognitive Neuroscience

High Density Event-related Potential Data Acquisition in Cognitive Neuroscience

Published on: April 16, 2010

Lessons learned in delayed identification of a misplaced electrode array in the vestibule.

Huey Ting Diong¹, Yuhan Wong^2,3, Shermaine Png¹

¹Department of Audiology, Ng Teng Fong General Hospital, 1 Jurong East Street 21, Singapore, 609606, Singapore.

Journal of Otology

|January 8, 2025

Summary

A cochlear implant electrode array was misplaced in the vestibule, causing poor speech performance despite normal hearing. Delayed identification occurred because the patient lacked typical vestibular symptoms.

Keywords:

Cochlear implantation Electrode misplacement Neural response telemetry Poor CI outcome Vestibule

More Related Videos

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

Published on: March 3, 2014

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

Related Experiment Videos

Last Updated: Jul 8, 2026

High Density Event-related Potential Data Acquisition in Cognitive Neuroscience

High Density Event-related Potential Data Acquisition in Cognitive Neuroscience

Published on: April 16, 2010

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

A Method for Systematic Electrochemical and Electrophysiological Evaluation of Neural Recording Electrodes

Published on: March 3, 2014

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

Area of Science:

Otolaryngology
Neurosurgery
Audiology

Background:

Cochlear implantation is a common treatment for profound hearing loss.
Accurate electrode placement is crucial for optimal device function.
Electrode misplacement, particularly in the vestibule, can lead to suboptimal outcomes.

Purpose of the Study:

To report a case of cochlear implantation with electrode array misplacement in the vestibule.
To investigate the reasons for the delayed identification of this misplacement.
To highlight the importance of considering atypical presentations in cochlear implant recipients.

Main Methods:

A 23-year-old male with single-sided deafness underwent cochlear implantation.
Intraoperative assessment and postoperative audiological evaluations were performed.
High-resolution computed tomography (HRCT) and neural response telemetry (NRT) were utilized for diagnosis.
Revision surgery was conducted.

Main Results:

The electrode array was found entirely within the vestibule on HRCT.
The patient exhibited poor speech performance despite good aided hearing thresholds.
Retrospective NRT analysis showed subtle response differences.
The patient did not present with vestibular symptoms due to pre-existing otolithic weakness.

Conclusions:

Delayed identification of electrode misplacement can occur, even without typical vestibular symptoms.
Atypical presentations necessitate thorough investigation, including advanced imaging and electrophysiological testing.
Further research is needed to understand outcomes in cases of electrode misplacement within the vestibule.