Cochlear-implant simulated spectral degradation attenuates emotional responses to environmental sounds.
Kelly N Jahn, Braden M Wiegand-Shahani, Vaishnavi Moturi and 2 others
PMID 39146030WHAT IT FOUND
Normal-hearing listeners rated environmental sounds processed like a cochlear implant as closer to neutral and less exciting than natural sounds.
Key findings
01Vocoded environmental sounds were rated as more negative and less arousing than full-spectrum sounds.
02The vocoded condition compressed emotional ratings: pleasant and neutral sounds became more negative, while unpleasant sounds became more positive.
03Arousal differences between unpleasant, pleasant, and neutral sounds were not found in the vocoded condition.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
Participants were young adults with normal hearing, not cochlear implant users. The vocoder simulated a specific processing scheme and cannot fully replicate the perceptual or psychosocial experiences of electric hearing. Arousal ratings were not matched across unpleasant and pleasant sound categories. The study did not test actual cochlear implant users or a clinical intervention.
Declared interests
The authors declared no competing interests.
The easy way to misread this
Do not conclude that cochlear implants cause compressed emotional responses in users. This study tested normal-hearing listeners with simulated processing, not actual cochlear implant users.