An analysis of the neural coding of speech sounds in anaesthetized gerbils shows that sound-processing algorithms used by hearing aids can degrade the wearer’s ability to discriminate sounds.
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Middlebrooks, J.C. Why hearing aids are impaired. Nat. Biomed. Eng 6, 679–680 (2022). https://doi.org/10.1038/s41551-021-00714-z