Optimizing cochlear implants for better perception of speech on speech

Optimizing cochlear implants for better perception of speech on speech - OCISS

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON44061

Enrollment

231

Registered

2016-02-02

Start date

2017-03-01

Completion date

Unknown

Last updated

2024-04-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

deafness hearing-loss

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: In order to be eligible to participate in the NH group of this study, a subject must meet all of the following criteria: - Be aged 18 years or more. - Have no history of hearing or language disorder. - Have no vision deficit (after correction) and be able to manipulate a mouse. - Participants must generally in good health. In order to be eligible to participate in the CI group of this study, a subject must meet all of the following criteria: - Be aged 18 or more. - Score more than 50% in the NVA speech in quiet intelligibility test (to allow good communication with the experimenter). - Have no vision deficit (after correction) and be able to manipulate a mouse. - All have comparable devices, or at least devices with comparable electrode-array length, whichever is the most common. - Participants must generally be in good health, apart from hearing-impairment.

Exclusion criteria

Exclusion criteria: - For the NH group, participants who have audiometric pure-tone average threshold higher than 25 dB-HL over mid-frequencies, in the better ear (Stephens, 1996). This will be measured during the first session. - All subjects who appear not in good health. - All subjects who show signs of claustrophobia.

Design outcomes

Primary

Measure	Time frame
The primary outcome will be the difference in VTL perception between two speech sounds on a given test. This will be measured by a variety of metrics, such as the JNDs, speech reception thresholds (SRTs), and percent-correct responses. Additionally, measures for percentage responses will be used. Verbal responses given by subjects will be audio recorded for offline analyses. This will only be obtained if they give their written consent.	—

Measure

Time frame

The primary outcome will be the difference in VTL perception between two speech sounds on a given test. This will be measured by a variety of metrics, such as the JNDs, speech reception thresholds (SRTs), and percent-correct responses. Additionally, measures for percentage responses will be used. Verbal responses given by subjects will be audio recorded for offline analyses. This will only be obtained if they give their written consent.

—

Secondary

Measure	Time frame
Not applicable.	—

Countries

Netherlands

Outcome results