Details

Autor(en) / Beteiligte

• Thakkar, Tanvi
• Goupell, Matthew J

Titel

Internalized elevation perception of simple stimuli in cochlear-implant and normal-hearing listeners

Ist Teil von

• The Journal of the Acoustical Society of America, 2014-08, Vol.136 (2), p.841-852

Ort / Verlag

United States: Acoustical Society of America

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• In normal-hearing (NH) listeners, elevation perception is produced by the spectral cues imposed by the pinna, head, and torso. Elevation perception in cochlear-implant (CI) listeners appears to be non-existent; this may be a result of poorly encoded spectral cues. In this study, an analog of elevation perception was investigated by having 15 CI and 8 NH listeners report the intracranial location of spectrally simple signals (single-electrode or bandlimited acoustic stimuli, respectively) in both horizontal and vertical dimensions. Thirteen CI listeners and all of the NH listeners showed an association between place of stimulation (i.e., stimulus frequency) and perceived elevation, generally responding with higher elevations for more basal stimulation. This association persisted in the presence of a randomized temporal pitch, suggesting that listeners were not associating pitch with elevation. These data provide evidence that CI listeners might perceive changes in elevation if they were presented stimuli with sufficiently salient elevation cues.