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Updated: May 22, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

Published on: June 3, 2013

Improving virtual channel discrimination in a multi-channel context.

Arthi G Srinivasan¹, Robert V Shannon, David M Landsberger

¹Department of Communication and Auditory Neuroscience, House Research Institute, 2100 West 3rd Street, Los Angeles, CA 90057, USA. asrinivasan@hei.org

Hearing Research

|May 23, 2012

Summary

This summary is machine-generated.

Current focusing in cochlear implants improves spectral resolution and signal discrimination, even with competing sounds. This technique enhances performance in challenging listening situations like speech in noise.

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Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

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Published on: November 9, 2018

Area of Science:

Audiology
Biomedical Engineering
Neuroscience

Background:

Improving spectral resolution in cochlear implants (CIs) is crucial for speech perception in noisy environments.
Current steering and current focusing techniques have shown promise in reducing excitation spread and enhancing virtual channel discrimination in single-channel CI simulations.

Purpose of the Study:

To investigate whether the benefits of current focusing observed in single-channel CI contexts extend to multi-channel stimulation.
To determine if current focusing improves signal discrimination in the presence of competing stimuli on adjacent electrodes.

Main Methods:

Signal discrimination was assessed in a multi-channel context with and without the application of current focusing.
Competing stimuli were presented on electrodes adjacent to the target electrode to simulate challenging listening conditions.

Main Results:

Signal discrimination performance was consistently superior when current focusing was applied compared to when it was not.
The benefits of current focusing were observed irrespective of the amplitude of the competing stimuli.

Conclusions:

Current focusing effectively enhances spectral resolution and signal discrimination in a multi-channel cochlear implant simulation.
Combining current steering and current focusing offers a promising strategy for delivering more effective spectral cues to CI users, potentially improving performance in complex auditory environments.