With a simple set of clinical tests we want to measure speech recognition performance in a group of normal hearing (NH) individuals and in a group of individuals with a specific hearing impairment. The purpose is to determine if and to what extent…
ID
Source
Brief title
Condition
- Hearing disorders
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Per group the speech reception threshold (SRT) at different degrees of
distortion of the time and frequency signal cue.
Secondary outcome
1. Normative data for normal hearing on these tests.
2. For individuals the performance on the different modifications of the
Digit-In-Noise (DIN) tests w.r.t. the performance on the DIN test itself.
Background summary
Conductive hearing loss (i.e. problems in the middle ear) can be fully treated
by surgery and/or rehabilitation with hearing aids. For sensorineural hearing
loss the treatment for less severe losses is fitting regular hearing aids and
in severe cases it is implantation of a Cochlear Implant (CI). The primary
purpose of regular hearing aids is to amplify sound to reach sufficient
activation of neurons in the cochlea. This does not lead to adequate
rehabilitation for most of the patients. They keep experiencing difficulties in
understanding speech in quiet and especially in more complex listening
situations like in noisy circumstances (e.g., Plomp and Mimpen 1979a, Kaandorp
2014).
We hypothesize that people with sensorineural hearing loss use the available
signal cues (e.g. frequency and time) to a lesser extent than the Normal
Hearing (NH) even when the speech (and noise) signal is well above the hearing
threshold (Van Schijndel 2001, Goverts 2010). We further assume that it depends
on the type of sensorineural hearing loss as to what extent use is made of the
different signal cues. This was not verified in their studies as one group of
hearing impaired (HI) was measured without distinguishing the subsequent
sub-types of cochlear hearing loss.
Using their approach we composed a test battery, that is applicable to a
broader range of patients and focuses more on auditory processing, to assess
the use of signal cues in one specific sample of patients, i.e. patients with
an assumed metabolic type of hearing loss. Future research can use the same
tests for individuals with different types of hearing impairment.
The results of the current study can be used clinically for a more precise
diagnosis of sensorineural hearing losses. Further, the outcome can provide
direction in hearing aid development to improve rehabilitation capabilities for
such hearing losses.
Study objective
With a simple set of clinical tests we want to measure speech recognition
performance in a group of normal hearing (NH) individuals and in a group of
individuals with a specific hearing impairment. The purpose is to determine if
and to what extent this group of Hearing Impaired (HI) makes use of the signal
cues in the speech material in a different way than NH do. The test will be
simple enough to conduct in children and CI users in later research.
Study design
Cross-sectional study
Study burden and risks
No health risks are associated with participation. All stimuli will be
presented at safe sound pressure levels. Total test-time will not exceed 120
minutes, including a break for the participant. Benefit for participants will
be an assessment of their hearing. Additionally, the participants will receive
a fee of ¤15,00 (¤7,50 per hour). Travelling expenses will be covered. In the
current study only adults are included, either with normal hearing or with
specific hearing thresholds.
De Boelelaan 1118
Amsterdam 1081 HZ
NL
De Boelelaan 1118
Amsterdam 1081 HZ
NL
Listed location countries
Age
Inclusion criteria
Hearing impaired group:Hearing thresholds: ear of interest/best ear: Mild flat pure-tone air-conduction hearing loss in the lower frequencies gradually sloping to moderate to serious pure-tone air-conduction hearing loss in the higher frequencies. Other ear: essentially equal or worse hearing loss.
Normal hearing group: (Sub)normal pure-tone air-conduction thresholds at all relevant octave frequencies;No air-bone gap
Age: adults
Native language: Dutch
Negative otologic history (except for the hearing impaired group)
Exclusion criteria
Neurological problems, asked for during anamnesis if the subject has visited a neurologist in the past 10 years
Speech/Language disorder
Native language other than Dutch
Positive otologic history (only for normal hearing group)
Contralateral ear is not properly maskable.
Design
Recruitment
Medical products/devices used
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL61770.029.18 |