Exam 2 Part 4 Flashcards
If the compliance of B is less than half as large as A, what is it an indication of?
Lesion in the 7th or 8th cranial nerve
If the compliance of B is as large as A, what is it an indication of?
Normal
Audiometry that uses a real-world stimulus
Speech audiometry
Implies understanding and comprehension
Speech perception
Level at which one becomes aware of the presence of speech
Detection
Level at which one is able to distinguish between individual speech stimuli
Discrimination
Level at which one is able to label what has been heard
Identification
Threshold measure; focus is on assessing audibility not vocabulary
Reception
Supra threshold measure; focus is on intelligibility. Not a test of vocabulary, although this can certainly impact performance
Recognition
What are the advantages to MLV?
Personal touch, more flexibility, able to give feedback to the patient, can modify speed of testing, able to alter word list, able to test difficult-to-test populations
What are the advantages to pre-recorded voices?
Don’t have to monitor VU meter, same stimulus given to patients if you’re doing research, standardization, covering mouth/lip not needed, will not give visual cues to patients
Test of sensitivity to use actual speech stimulus than pure tone audiometry; checks the validity of pure tone testing, provides a reference level for speech-regonition testing,
Speech reception threshold (SRT)
SRT - PTA = ____ dB
+/- 5-6 dB
What 3 criteria does the stimuli for SRT testing pass?
Familiarity, phonetic dissimilarity, homogeneity of audio
Bi-syllabic words with equal emphasis on each syllable
Spondees
Putting keywords into a phrase
Carrier phrase
When do we do SRT for children and adults?
Adults: doesn’t matter
Children: first
Usually verbal response and can be non-verbal
Response mode
If someone is suspected of faking hearing loss we use vulgar words
Vulgar spondees
What is the purpose of SRT (speech response threshold)?
Using actual speech stimulus rather than pure tone audiometry, checks the validity of PTA results, provides reference level for speech recognition testing, helps to evaluate difficult-to-test populations
What is the purpose of speech recognition tests?
Estimate degree of hearing handicap, can determine site of lesion
What are some other helpful things that speech recognition tests do?
Determine site of lesion, monitor progress of aural rehabilitation, assess hearing aid performance, assess central auditory function
Performance may peak but as you make speech louder, performance decreases suggesting a neural lesion
Performance intensity phonetically balanced words rollover (PIPB rollover)
What is the formula for PIPB rollover if it is significant?
PB max - PB min is greater than 20%
