Cochlear damage disrupts temporal fine structure needed by the MSO

Evidence

Regarding temporal coding, Ruggero, Rich, and Recio (1992) noted small shifts in the delay of the traveling wave after cochlear death, and Heinz, Swaminathan, Boley, and Kale (2010) have demonstrated that cochlear damage can also distort the across-frequency representation of temporal fine structure in auditory nerve fibers. Such temporal distortions would not need to be large to disrupt the fine temporal synchronization necessary for representation by the MSO. … Alterations in the amount of basilar membrane vibration with level (Ruggero & Rich, 1991) also will yield abnormal excitation and inhibition within the LSO. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1584

Categorization

• QUESTION: Small traveling-wave delays after cochlear ‘death’ — what exact cochlear condition is meant, and how large are the measured delays?
• corroborated: 2 independent passages support this claim — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1584
• XREF: connects to: Auditory neuropathy severely impairs fine-structure processing while preserving envelope use; Auditory nerve damage degrades sound localization by corrupting ILD and ITD cues; Monaural temporal fine structure processing declines with age even without hearing loss. — Dijk, Pim van, Physiology, Psychoacoustics and…, 824 (+4 more)

Broader Connections

• Inner-ear damage permanently corrupts higher-level auditory perception, not just thresholds #expands (0.80) — Toole, Floyd E, Sound reproduction- the acoustics and…, 1879
• Monaural temporal fine structure processing declines with age even without hearing loss. #complicates (0.75) — Dijk, Pim van, Physiology, Psychoacoustics and…, 824
• Cochlear gain loss can compensate for temporal coding deficits in AM detection #qualifies (0.75) — Dijk, Pim van, Physiology, Psychoacoustics and…, 5904
• Loud music damages cochlear structures in distinct ways producing distinct perceptual deficits #exemplifies (0.72)
• Excess noise damages cochlear hair cells through several distinct mechanisms #exemplifies (0.70) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2647