Term
| A cochlear implant functions to directly stimulate hair cells within the cochlea. T/F |
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Definition
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Term
| The common goal for all cochlear implant systems is to give patients access to the speech spectrum to achieve sound audibility. T/F |
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Definition
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Term
| For all implant systems, electrical current passes between active and indifferent electrodes. T/F |
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Definition
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Term
| Typical open-set sentence scores with second generation cochlear implant devices was 80%. T/F |
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Definition
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Term
| The current Medicare indications for adult cochlear implant candidacy state that the patient must score 40% or poorer on recorded sentences in the better ear. T/F |
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Definition
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Term
| The current NAD (National Assoc. for the Deaf) Position Paper on cochlear implants states while a cochlear implant is not a cure for deafness, it might benefit post-linguistically deafened adults or children with prior sound experience. T/F |
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Definition
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Term
|
Definition
| Open set measure of monosyllabic word recognition |
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Term
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Definition
| sentences to be used with children |
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Term
| Describe ESP (low verbal or standard) |
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Definition
| closed-set speechperceptoin test |
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Term
|
Definition
| rating scale of assessing speech and listening skills |
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Term
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Definition
| word list containing words within child's lexicon |
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Term
| Which of the following would typically NOT be used for determining CI candidacy for a 3 year old child: MAIS, BKB sentences, Aided SF thresholds, ESP |
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Definition
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Term
| One of the primary expected benefits from a CI is enhancement of lipreading skills. T/F |
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Definition
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Term
| A CI differs from a hearing aid in that is acoustically amplifies sound. T/F |
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Definition
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Term
| Impedence telemetry allows the clinician to detect if an electrode (channel) is short circuiting. T/F |
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Definition
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Term
| It is recommended that a child have a 6 month trial with amplification prior to implant surgery, with an exception being made for those post-meningitis. T/F |
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Definition
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Term
| As part of pediatric candidacy assessment, both objective (ABR and OAE) and subjective behavioral testin should be performed. T/F |
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Definition
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Term
| Which of the following tests would typically not be included in an adult CI workup for candidacy? CNC words, HINT sentences, CUNY sentences, MLNT words, aided SF thresholds |
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Definition
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Term
| Radiological MRI assessment pre-operatively cannot determine the presence of an auditory nerve. T/F |
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Definition
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Term
| The presence of some cochlear ossification is not a contraindication for cochlear implantation. T/F |
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Definition
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Term
| What are four reported medical/surgical complications associated with CI surgery? |
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Definition
| pain & swelling, wound infection, facial paralysis, metallic taste |
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Term
| Otitis externa is a reported medical/surgical complication associated with CI surgery. T/F |
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Definition
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Term
| Implant surgery typically requires 2-3 day hospitalization stay. T/F |
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Definition
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Term
| The implant array is typically implanted into the scala media. T/F |
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Definition
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Term
| The published incidence of internal device failures of cochlear implants is less than 2%. T/F |
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Definition
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Term
| Monopolar stimulation reduces the chance of channel interaction. T/F |
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Definition
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Term
| Perimodiolar electrode placement has the potential for better frequency resolution and reduced channel interaction. T/F |
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Definition
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Term
| Can the PBK-50 words be used to determine CI candidacy in a child 18 months of age? |
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Definition
| No. The MAIS, MUSS and aided SF thresholds would be typically used. |
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Term
| Implant systems differ by such features as electrode design, speech coding strategy and telemetry. T/F |
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Definition
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Term
| A potential use for neural response telemetry is to allow a clinician to see responses of the nerve fibers at each site of stimulation. T/F |
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Definition
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Term
| A CI differs from a hearing aid in that it relies on the responsiveness of hair cells for sound transmission. T/F |
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Definition
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Term
| As an audiologist who does not work in a CI center, which screening test is suggested for you to perform to determine referral for impant candidacy in adults? |
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Definition
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Term
| Patients have been traditionally seen for their initial stimulation 4-6 weeks following surgery, however some centers are performing initial stimulations much earlier. T/F |
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Definition
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Term
| Current FDA indications for all pediatric cochlear implant candidacy includes children 12 months to 17 years of age, with profound hearing loss for 12-24 months and severe to profound for the rest. T/F |
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Definition
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Term
| Describe the receiver/stimulator |
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Definition
| decodes signal and sends it to the electrodes |
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Term
| describe the antenna/transmitter |
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Definition
| sends the signal across the skin |
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Term
| describe the speech processor |
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Definition
| converts the acoustical to electrical signal |
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Term
| describe the CI microphone |
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Definition
|
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Term
| describe the electrode array |
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Definition
| conveys message to the auditory nerve |
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Term
| transcutaneous connectors utilize RF signals to send electrical signals across the skin to be decoded by implant electronics. T/F |
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Definition
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Term
| Bipolar stimulation gives more frequency selectivity at the stimulation site. T/F |
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Definition
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Term
| Electrode impedancce is a measure of opposition to electrical current flow through the lead wires, electrodes and tissue. T/F |
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Definition
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Term
| Telemetry allows the clinician to objectively determine how the patient hears with the implant. T/F |
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Definition
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Term
| The common goal for all CI systems is restoration of hair cell function to achieve sound audibility. T/F |
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Definition
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Term
| Name 3 issues to consider for implant candidacy in children. |
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Definition
| speech perception scores, amount of time without amplification, lack of benefit from hearing aids |
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Term
| The current NAD Position Paper on CI states that communication and cognition are vital ingredients of every child's development, regardless of the mode in which expressed (visual or auditory). T/F |
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Definition
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Term
| Compliance telemetry allows us to determine if there is sufficient voltage to allw an electrode to be stimulate at the programmed current level. T/F |
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Definition
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Term
| Name 5 patient issues to be considered in determining CI candidacy in children |
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Definition
| age of patient, years deafened, educational options, degree of hearing loss, cognitive abilities |
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Term
| Current FDA indications for pediatric CI candidacy mandate that the child be in an auditory/oral educational setting. T/F |
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Definition
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Term
| High electrode impedance suggests that an electrode may not be in contact with body fluid or the lead wire is broken. T/F |
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Definition
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Term
| An electrode that is out of compliance should not have any effect on loudness perception with the programmed device. T/F |
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Definition
| False (You won't get loudness growth and/or intermittent sound quality) |
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Term
| A CI differs from a hearing aid in that it bypasses damaged hair cells to directly stimulate the auditory nerve. T/F |
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Definition
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Term
| All CI systems use either titanium or ceramic materials to encase their implant electronics. T/F |
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Definition
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Term
| Neural response telemetry allows the clinician to measure the action potential by directly stimulating neural elements near the active electrode. T/F |
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Definition
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Term
| The MAIS would typically not be used in determining CI candidacy of a 7 year old. T/F |
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Definition
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Term
| The sensitivity dial on a CI controls the perceived loudness similar to the way on a VC on a hearing aid performs. T/F |
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Definition
| Flase (It controls amplification and compression of signal in the speech processor) |
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Term
| Bipolar stimulation uses less curent to achieve loudness growth by stimulating in pairs. T/F |
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Definition
| False (It uses more current) |
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Term
| The deaf community has stated that in their opinion deafness should be viewed as a sensory disability rather than cultural difference. T/F |
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Definition
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Term
| To perform neural response telemetry (NRT)the stimulating electrode in intracochlear and the recording electrode is extracochlear. T/F |
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Definition
| False (both electrodes are intracochlear) |
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Term
| The expected aided audiogram with a CI fall within a range of about 20-45dB across the entire speech spectrum (500-4kHz). T/F |
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Definition
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|
Term
| Monopolar stimulation uses less current to obtain loudness growth. T/F |
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Definition
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Term
| All 3 implant companies have an auditory brainstem implant. T/F |
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Definition
| False (only Cochlear does) |
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Term
| A CI functions to convert acoustical input signals into electrical patterns for sound recognition. T/F |
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Definition
|
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Term
| All 3 implant companies primarily use BTE speech processors with different battery options. T/F |
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Definition
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Term
| All 3 implant companies currently have a receiver/stimulator with a removable magnet. T/F |
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Definition
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Term
| Rate of stimulation is independent of pulse width and only dependent on number of channels and coding strategy. T/F |
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Definition
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|
Term
| All 3 implant companies have a commercially available form of neural response telemetry in their programming software. T/F |
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Definition
| True (the MedEl just became available) |
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Term
| The stimulation site is the point or contact at which electric current is released. T/F |
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Definition
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Term
| The electrode is an electrode grouping that can transmit a distinctly processed signal. T/F |
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Definition
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Term
| A channel is a stimulation site that can be selectively stimulated with a distinctly processed signal. T/F |
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Definition
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Term
| Volume controls on CI shift the "M" or "C" levels up or down to expand or compress the dynamic range. T/F |
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Definition
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Term
| One of the primary expected benefits from a CI is the ability for all patients to achieve open-set word recognition. T/F |
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Definition
| False (it is hoped that the pt will get this but not expected) |
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Term
| CI power consumption is determined by factors such as stimulation rate, pulse width and skin flap thickness. T/F |
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Definition
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|
Term
| After CI surgery, both CT and MRI scanning are acceptable for all devices without magnet removal. T/F |
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Definition
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Term
| A coding strategy is a set of rules for interpretation of incoming acoustic signals. T/F |
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Definition
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Term
| ACE is a fast rate, digital, roving strategy. T/F |
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Definition
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Term
| The purpose of programming is to customize the device for comfortable and usable stimulation for each patient. T/F |
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Definition
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Term
| Habilitation is not essential to the development of a child's effective use of a CI. T/F |
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Definition
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|
Term
| A sudden unexpected aversive response on one electrode is suggestive of an out of compliance electrode. T/F |
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Definition
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|
Term
| In pediatric aural rehab with implanted children, it is not necessary to follow the normal hierarchical sequence for auditory skill development. T/F |
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Definition
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|
Term
| CIS uses monopolar stimulation on a fixed number of electrodes. T/F |
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Definition
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Term
| Post linguistically deafened adults in clinical trials achieve a mean word recognition score of 80% on taped sentences in quiet and 65% in noise. T/F |
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Definition
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|
Term
| It is not necessary to eliminate an electrode from a MAP because it causes facial stimulation or eye twitch. T/F |
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Definition
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|
Term
| Do EABR and NRT levels affect performance with a CI? |
|
Definition
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|
Term
| A stimulation mode describes the location of the indifferent electrode relative to the active electrode. T/F |
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Definition
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|
Term
| Pulsatile waveforms are compressed representations of the incoming signals and analog waveforms are biphasic pulses. T/F |
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Definition
| False (it's the opposite) |
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|
Term
| The 2 basic abilities all multi-channel CI users should develop are perception of prosodic and pitch information. T/F |
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Definition
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|
Term
| Fast rate strategies are more battery efficient than slow rate strategies. T/F |
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Definition
|
|
Term
| In monopolar coupling, the active electrode is extra-cochlear. T/F |
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Definition
| False (it's intracochlear) |
|
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Term
| Absence of EABR and/or NRT suggest a device malfunction. T/F |
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Definition
|
|
Term
| Current implant devices use feature extraction techniques to code speech. T/F |
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Definition
| False (they use full spectrum) |
|
|
Term
|
Definition
| The lowest current level to elicit hearing |
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Term
| Describe the C or M level |
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Definition
| The maximum current level comfortable to the patient |
|
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Term
| Describe the Dynamic Range |
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Definition
| The difference between the softest sound heard and the loudest sound acceptable |
|
|
Term
| Describe stimulation mode |
|
Definition
| the relative location of reference and active electrodes |
|
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Term
| The map determines how acoustic information is transformed into electrical stimulation parameters that evoke appropriate auditory perceptions. T/F |
|
Definition
|
|
Term
| CIS uses 6-12 spectroal maxima roving along an electrode array of 20 possible sites. T/F |
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Definition
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|
Term
| EABR measures the electrically evoked response at the brainstem level. T/F |
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Definition
|
|
Term
| Studies have shown that early implanted children learn language at the same rate as their hearing peers but are delayed overall as compared to their hearing peers. T/F |
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Definition
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|
Term
| Current levels displayed for each device during programming are equivilent to dB on an audiogram. T/F |
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Definition
|
|
Term
| Adults with post-lingual deafness do not demonstrate any benefits in the areas of social anxiety or loneliness post implant. T/F |
|
Definition
|
|
Term
| Subjectively setting the dynamic range on each electrode is best done when the patient is able to distinguish between soft and loud sound stimuli during loudness growth measurements. T/F |
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Definition
|
|
Term
| Subjective loudness mapping for children can be done using VRA or play audiometry. T/F |
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Definition
|
|
Term
| NRT or NRI are non-invasive techniques to measure the electrical compound action potential and are used to provide objective information to help with device programming. T/F |
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Definition
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|
Term
| Clinical trial speech perception data from all companies fail t show progress in adult patients until about 1 year post-op. T/F |
|
Definition
| False (Most show at least some progress by 3 months post op) |
|
|
Term
| Streamlined fitting methods allow for device programming using a limited set of electrodes. T/F |
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Definition
|
|
Term
| ESRT is a subjective method for loudness mapping, correlating with C or M levels. T/F |
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Definition
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|
Term
| Implantation of senior citizens has been shown to be less successful that implantation in younger adults. T/F |
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Definition
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|
Term
| SAS emphasizes temporal information but runs the risk of channel interaction during stimulation. T/F |
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Definition
|
|
Term
| Electrical dynamic ranges are significantly larger than acoustic DR. T/F |
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Definition
|
|
Term
| For best results, therapy should incorporate language skills into auditory tasks. T/F |
|
Definition
|
|
Term
| Pulsatile strategies differ by rate of stimulation, pulse duration and waveform amplitude. T/F |
|
Definition
|
|
Term
| A reason for eliminating an electrode in a MAP is because the electrode is out of compliance. T/F |
|
Definition
|
|
Term
| Speech production typically preceeds speech perception abilities in young children within the first year after implantation. T/F |
|
Definition
|
|
Term
| Fliter bank wave representation segments incoming sounds into 4 or more frequency bands. T/F |
|
Definition
|
|
Term
| Bimodal stimulation involves the use of a hearing aid in one ear and a CI in the other ear. T/F |
|
Definition
|
|
Term
| Coding strategies are designed to primarily to optimize enjoyment of music and environmental sounds. T/F |
|
Definition
|
|
Term
| After 3 months of device use for an adult there is not need to reprogram the device. T/F |
|
Definition
|
|
Term
| Name 3 sources of electrostatic discharge. |
|
Definition
| clothing, computer/TV screens, plastic playground equipment (metal slides do not) |
|
|
Term
| CI are not able to interface with other assitive listening devices. T/F |
|
Definition
|
|
Term
| Pre-linguistically deafened children implanted within 2-3 years of life deomonstrate benefit in speech perception ability with as littele as 6 months of device use. T/F |
|
Definition
|
|
Term
| HiRes-S uses partially simultaneous paired stimulation at a fast rate. T/F |
|
Definition
|
|
Term
| At the time of initial stimulation of an adult, the patient will be able to determine the pitch of a sound. T/F |
|
Definition
|
|
Term
| Adult patients tend to have a small dynamic range at the time of initial stimulation. T/F |
|
Definition
|
|
Term
| Reading and math skills tend to plateau in impoanted deaf children by the 4th grade. T/F |
|
Definition
|
|
Term
| The indifferent electrode in bi-polar coupling is outside the cochela. T/F |
|
Definition
|
|
Term
| The Instantaneous Input Dynamic Range is the difference between the base level (lowest stimulation level) and teh AGC threshold level. T/F |
|
Definition
|
|
Term
| The full spectrum coding strategies have demonstrated significant improvement in open-set word recognition abilities over feature extraction strategies. T/F |
|
Definition
|
|
Term
| New research theorizes that people who do not experience significant benefits from CI may have auditory systems that are less plastic. T/F |
|
Definition
|
|
Term
| ACE uses sequential biphasic pulses at a slower, adaptive rate of stimulation. T/F |
|
Definition
|
|
Term
| Development of listening skills assures development of linguistic competence in children. T/F |
|
Definition
|
|
Term
| Younger implanted children learn language didactially while later implanted chileren can learn taught language incidentally. T/F |
|
Definition
|
|
Term
| Virtual channel technology uses stimulation of adjacent channels to creat an additional pitch percept. T.F |
|
Definition
|
|
Term
| SAS is an analog, monopolar strategy with a fast rate of stimulation. T/F |
|
Definition
| False (it is analog but done with enhanced bipolar) |
|
|
Term
| Children who wore hearing aids and those with CI, learning in the same classroom, demonstrated similar performance levels on tests of speech recognition and grammar. T/F |
|
Definition
| False (CI demonstrated better performance on all measures) |
|
|
Term
| Does the inability of a patient to use the phone suggest the need for a MAP change? |
|
Definition
| No--some patients can never hear on the phone. |
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