Spatial Release From Masking in Children: Effects of Simulated Unilateral Hearing Loss.

The study used normal-hearing children and adults with a temporary simulated conductive loss, not children with permanent unilateral hearing loss. Only 12 children and 11 adults took part, so the results are preliminary. The authors note that conductive and sensorineural hearing loss may affect spatial hearing differently. The authors note that acute simulated loss may not match permanent loss because the auditory system can adapt over time. Attenuation was measured only at 500, 1000, and 2000 Hz, and not for every participant, so the exact simulated loss was not fully characterized. For adults, attenuation values were partly collected from different people than those who completed the speech task. The study did not test an intervention or seating arrangement, so it cannot show that any change in classroom placement improves listening. The association between low-frequency attenuation and less benefit was not corrected for multiple comparisons. The Discussion's suggestion of implications for audiologic rehabilitation and classroom seating is an author interpretation, not a tested result.

No conflicts of interest were declared.

Do not read this as evidence that children with permanent unilateral hearing loss have the same listening profile or that seating changes improve listening. The participants had normal hearing and wore a temporary earplug and earmuff, and the authors say permanent loss, loss type, and adaptation may change the result.