Hearing-impaired subjects localized via pinna frequency shaping, not level differences
Evidence
At average MAAs (< 35° for HI) level-cue magnitudes (< approximately 1 dB) were found to be smaller than the level just-noticeable-differences for HI test subjects reported to be 1–2 dB (Moore 2003 ). This indicates that most subjects likely used the frequency-shaping cue rather than the level cue. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3124
Categorization
- corroborated: 2 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 3124
- XREF: connects to: Hearing impairment makes fine high-frequency pinna cues imperceptible; Down-shifted Weinrich cues improve MAA in hearing-impaired listeners by about ten degrees — Dijk, Pim van, Physiology, Psychoacoustics and…, 3052; Even enlarged pinna cues leave hearing-impaired localization far below normal — Dijk, Pim van, Physiology, Psychoacoustics and…, 3050 (+5 more)
Broader Connections
- Even enlarged pinna cues leave hearing-impaired localization far below normal
#corroborates(0.80) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3050 - Head-related transfer functions encode how the head and pinna shape spatial hearing
#expands(0.80) - Sensorineural hearing loss causes wide variability in sound localization ability
#expands(0.75) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1578 - Sound localization deficits in hearing loss come from neural coding changes, not audibility.
#corroborates(0.72)