Table 3 Summaries of reviewed articles on frequency
Authors | Year | Participants | Methodology | Results |
|---|---|---|---|---|
Ferekidou et al. [35] | 2008 | 20–29, 30–39, 40–49, 50–59, and 60–69 years old 100 healthy adults | Acoustic reflex threshold was determined at 226-, 678- and 1000- Hz probe tones, using 500-, 1000-, 2000- and 4000-Hz stimuli | The lowest threshold level was recorded at 226 Hz using stimulus 1000 Hz |
Kei [24] | 2012 | 68 neonates (29 males and 39 females) who passed the automated auditory brainstem response, transient evoked otoacoustic emission, and HFT tests, completed at least one ASR test | ASR thresholds were elicited by presenting pure tones of 0.5, 2, and 4 kHz and broadband noise (BBN) | Reflex thresholds were higher at 0.5 kHz than 2 kHz and higher at 2 kHz than 4 kHz |
You et al. [36] | 2019 | 104 young listeners with normal hearing (53 female and 51 male) participated | ART measurement was performed in twelve conditions consisted of 3 probe tones (e.g., 226, 678, 1000 Hz) and 4 stimulus frequencies (e.g., 500, 1000, 2000, 4000 Hz) | All probe tones had the highest ART at 4000 Hz |
Feeney and Sanford [40] | 2005 | Eight six-week-old infants and three adult subjects | Acoustic reflex thresholds were determined by calculating the cross-correlation between the reflex shift and the response from the highest activator level. The test was performed using band-pass noise between 2500 and 11,000 Hz | The best cross-correlation was shown to be between 1000 and 8000 Hz. Similar results were obtained with adults using a tonal activator |