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15 Cards in this Set
- Front
- Back
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Suprathreshold speech tests |
Suprathreshold speech tests assess speech understanding at levels well above threshold The results of these tests are called -Speech recognition scores or -Word recognition scores (WRS or “word rec”) |
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Why assess speech understanding? |
1. Suprathreshold speech tests can suggest how hearing loss impacts everyday communication i.e., they give us an idea about how much trouble they’re having Pure tone and speech thresholds only tell us about how audible speech is
2. Speech tests can tell us about function of higher levels of auditory system Certain disorders cause poorer-than-expected word recognition abilities Tumors on the auditory nerve Ménière’s disease Central auditory processing disorder |
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Phonetically-balanced (PB) word lists |
Lists of words in which the phonetic content of the list are representative of everyday speech These tests have an open-set response format -Answer could be any word at all – patient doesn’t have a set to choose from |
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Most popular PB tests: |
Northwestern University Test No. 6 (“the NU-6”) Central Institute for the Deaf W-22 (“the CID W-22”) |
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Closed-set tests |
1. Patient chooses from a set of possible responses 2. Some focus on specific phonemes or features a. Modified Rhyme Test (MRT) -50 items with 6 alternatives b. California Consonant Test (CCT) -100 items with 4 alternative >Both of these focus on errors that are likely in high-frequence HL c. City University of New York (CUNY) d. Nonsense Syllable Test (NST) -both CUNY and NST are CV syllables, 7-9 alternatives |
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Sentence tests |
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-Lists of 10; patient repeats whole sentence |
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-Patient repeats last word of the sentence -Presented in 12-talker babble -Assesses use of context |
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Hearing in Noise Test (HINT) |
-This is called the SNR-50 -Normal SNR-50 is +2 dB |
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Quick Speech in Noise Test (QuickSIN) |
-In each list of 6 sentences, SNRs will be +25, +20, +15, +10, +5, and 0 dB
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Sentence tests used with cochlear implant patients |
-Designed specifically for CI purposes -Each list includes sentences spoken by 4 different talkers -Compared to the HINT, AzBio sentences are more difficult and spoken less carefully |
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Word Recognition: Materials |
We use phonetically-balanced word lists for this: -The NU-6 or the CID W-22 -Both tests have 4 lists of 50 words -Standard procedure is to do a half-list (25 words) in each ear |
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Word Recognition: Presentation Level |
Depends on what you want to learn from the test -How they do at their most comfortable level -How they do at ordinary conversational levels ~45 dB HL -How well they can do, if you maximize audibility ~Often 40 dB SL re: the SRT ~Or maybe the loudest level they can tolerate |
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Word Recognition: Carrier phrase |
-Usually want to have "Say" peak at zero and let the test word fall naturally |
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Measuring speech recognition |
When testing suprathreshold speech understanding, recorded materials are greatly preferred
Maintains uniformity among patients -Talkers vary uniformity among patients |
