Exam Preview for 27421: The Influence of Cognitive Factors on Outco

The Influence of Cognitive Factors on Outcomes with Frequency Lowering

Please note: exam questions are subject to change.

1. Patient outcomes with use of frequency lowering vary widely in the literature. Which of the following factors have NOT been shown to influence these outcomes? Prior experience with frequency lowering Hearing thresholds of patient Use of volume control by the patient Age of patient
2. The cognitive resources devoted to speech understanding are finite. This means that: An increase in processing demands means less resources are available for short-term memory storage. A decrease in processing demands means less resources are available for short-term memory storage. A decrease in processing demands means no resources are available for short-term memory storage. An increase in processing demands means more resources are available for short-term memory storage.
3. What is frequency lowering designed to do? Reduce low frequency noise from the listening environment. Increase the volume of high frequency sounds for patients who can already hear these sounds with conventional amplification. Prevent internal microphone noise from becoming audible. Provide audibility of high frequency sounds that are inaudible to a patient with conventional amplification.
4. Which frequency lowering strategy pastes high frequency sound to a lower frequency region but also maintains amplification for the entire high frequency bandwidth? Nonlinear frequency compression Linear frequency compression Frequency translation Frequency transposition
5. Which of the following is true about all frequency lowering strategies? The method used to lower high frequency sound is similar to that of amplitude compression. The harmonic structure of the lowered high frequency sound is preserved. They provide benefit to all patients who use them. Some distortion to the original signal will occur, because frequency and intensity cues are altered by the algorithm.
6. In the Arehart et al (2013) study, which of the following is true about the test participants in the high working memory group? The members of the high working memory group were, on average, younger than the low working memory group. They performed better on the speech in noise task using frequency compression than the low working memory group as noise and compression increased. Their performance on the speech in noise task using frequency compression never decreased, even as noise and compression increased. They performed equally well on the speech in noise task using frequency compression as the low working memory group.
7. Souza et al (2015) analyzed the data from the Arehart et al study. They found that the participants who performed the poorest in the study: had the best hearing thresholds and poorer working memory skills. had the worst hearing thresholds and poorer working memory skills. had the best hearing thresholds and better working memory skills. had the worst hearing thresholds and better working memory skills.
8. Not all studies have measured an effect of cognitive abilities on frequency lowering outcomes. In which of the following participant groups was this lack of effect NOT observed? Test participants with normal hearing using cutoff frequencies between 4-6 kHz. Test participants with hearing loss using individualized frequency compression settings. Test participants with hearing loss who were judging sound quality of frequency compressed speech. Test participants with normal hearing using identical frequency compression settings.
9. Which factor best predicted speech intelligibility of frequency compressed speech in Kates et al 2013 study? Age of patient Score on the Quick Speech In Noise (QuickSIN) test Score on the Reading Span Test Gender of patient
10. When choosing the settings of a frequency lowering feature for a patient, which of the following is NOT recommended? Choosing the lowest possible cutoff frequency for maximum high frequency audibility. Determining the appropriate settings on an individualized basis for each patient. Verifying the audibility of the high frequency sound being lowered by the algorithm. Attempting to minimize distortion of the original signal by choosing the highest cutoff frequency that provides audibility of high frequency sound.