Auditory Rehab: Comparing New Versus Experienced Hearing Aid Users
Olson, Preminger, and Shinn (2013) examined behavioral effects of listening and communication enhancement (LACE) presented through DVD with training completed by new versus experienced hearing aid wearers. Twenty-nine subjects were assigned into three groups: (1) new hearing aid
(HA) users with training (experimental group), (2) experienced HA users with training (second experimental group), and (3) new HA users without training (control group). Subjects in the two experimental groups received 20 thirty-minute training sessions using the LACE DVD at home over four weeks. All subjects were assessed at baseline, and two and four weeks post-training. Analysis tools included speech in noise, rapid speech, and competing sentence tasks.
Olson, Preminger, and Shinn report that upon conclusion of the program, subjects in both experimental groups improved with respect to their ability to understand speech-in-noise (SIN) and their ability to understand competing speech. Of note, "The magnitude of improvement was greatest for new HA users…." The signal-to-noise ratio (SNR) (as measured via the QuickSIN) improved for new HA users by 2.4 dB after two weeks and by 2.9 dB after four weeks. The control group improved 0.91 dB after four weeks. Of note, every 1 dB improvement in SNR (likely) translates to 8 percent (or more) improvement with respect to word recognition score (WRS). Therefore, an improvement of 2.9 dB SNR indicates a (conservative) improvement of almost 25 percent WRS with regard to SIN tasks.
For More Information, References, and Recommendations
Beck DL, Nilsson M. (2013) Speech-in-Noise Testing: A Pragmatic Addendum to Hearing Aid Fittings. Hearing Review 16(37).
Killion MC, Niquette PA, Gudmundsen GI, Revit LJ, Banerjee S. (2004) Development of a Quick Speech In Noise Test for Measuring Signal-To-Noise Ratio Loss in Normal Hearing and Hearing-Impaired Listeners. Journal of the Acoustical Society of America 116:2395-2405.
Nilsson M, Soli S, Sullivan JA. (1994) Development of the Hearing in Noise Test for the Measurement of Speech Reception Thresholds in Quiet and in Noise. Journal of the Acoustical Society of America 95:1085-1099.
Olson AD, Preminger JE, Shinn JB. (2013) The Effect of LACE DVD Training ion New and Experienced Hearing Aid Users. Journal of the American Academy of Audiology 24:214-230.
Song JH, Skow E, Banai K, Krasu N. (2012) Training to Improve Hearing Speech in Noise—Biological Mechanisms. Cerebral Cortex 22(5):1180-1190.
Sweetow RW, Henderson-Sabes J. (2010) Auditory training and Challenges Associated with Participation and Compliance. Journal of the American Academy of Audiology 21(9):586-593.
Sweetow RW, Sabes JH. (2006) The Need for and Development of an Adaptive Listening and Communication Enhancement (LACE) Program. Journal of the American Academy of Audiology 17:538-558.