OAE Assessment
This is the optimal f1-f2 ratio.
What is 1.22?
The ability of the test to detect the absence of a disease.
What is specificity?
This graph plots sensitivity vs. specificity.
What is an ROC curve?
These transducers are used during IO monitoring.
What are insert earphones?
Negative middle ear pressure affects OAEs below this frequency.
What is 2000 Hz?
The OAE frequency most closely related to behavioral thresholds.
What is the F2?
This is the most likely basis for the biophysical cochlear amplifier contributing to OAEs
What are the stereocilia?
These areas of the brain are activated by vibrotactile input in deaf adults.
Somatosensory and auditory cortices
This scientist discovered OAEs in 1978.
Who is David Kemp?
This surgical approach is is preferred for avoiding facial nerve damage.
What is the translabrynthine approach?
These two factors reduce false positives in DPOAE screening.
What is:
6 dB SNR and absolute amplitue > 0 dB
This level as is used as a rule of thumb for OAE detection when norms are not available.
What is 0 dB SPL?
This is the reason that slight middle ear pathology affects OAEs.
What is the fact that the signal travels through the middle ear two times, and reverse transmission is less effective than forward transmission.
This type of OAE arises solely from linear reflection.
What are SOAEs?
This type of damage during surgery is caused by electrocautery
Thermal
This is criterion for change in DPOAEs for ototoxicity monitoring
Decrease in DPOAE amplitude exceeding test-retest reliability (≥2 dB)
These values are considered adequately reliability for DPOAE and TEOAE testing
What are ± 2 dB on 2 or more runs and greater than 90%?
These are the consequences of performing OAEs with a loose probe tip?
What is leakage of low-frequency OAE energy or increased ambient noise in low frequencies.
These areas of the brain are decoupled in late implanted children (over 7 years)
Primary auditory cortex and higher order cortex and thalamic input
OHC motility is responsible for this kind of OAE
TEOAEs
These near-field response peaks are measured during IO monitoring
P1 and N1
This is a method for dealing with standing wave interference
Insert the probe tip more deeply
This method of calibration is effective for dealing with standing wave interference.
What is forward pressure level?
This person challenged Georg Bekesy's model of a linear cochlear in the 1940's
Who is Thomas Gold?
This measure is believed to be superior to the ABR for measuring low-frequency thresholds.
What is the MLR?
These four factors are used as stopping rules during OAE testing
What are:
1) OAE amplitude level, 2) Noise floor level, 3) Signal-to-noise ratio, 4) Maximum recording time
This surgical approach allows good access to the root entry zone of the acoustic nerve
What is the retrosigmoid approach?
Very low noise floor and DPOAE levels may indicate the following:
What is a blocked microphone?