Auditory neuropathy presents with milder hearing loss than sensorineural loss yet worse temporal processing

Evidence

Studies have shown that listeners with SNHL may have reduced frequency resolution (Kluk and Moore 2006 ), but probably normal temporal resolution (Glasberg et al. 1987 ). In contrast, listeners with ANSD may have a dramatically impaired ability for processing temporal information (Narne 2013 ), while their frequency selectivity may be close to normal (Vinay and Moore 2007 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 3380

Categorization

Category: Factual Claims

• DEFINE: Provides the clinical distinction between SNHL (poor frequency resolution) and ANSD (poor temporal resolution) that underpins the whole lexical tone study.

Related

• Sensorineural and auditory neuropathy hearing losses impair opposite spectral and temporal abilities (similarity 0.94)
• Auditory neuropathy elevates gap detection thresholds threefold above normal (similarity 0.90)
• SNHL impairs fine-structure use through poor frequency resolution while ANSD impairs temporal resolution (similarity 0.90)
• Auditory neuropathy impairs temporal gap detection while SNHL patients stay near normal. (similarity 0.88)
• Sensory neural hearing loss preserves temporal resolution when audibility is compensated (similarity 0.87)
• Auditory neuropathy subjects preserved normal cochlear frequency resolution despite temporal deficits (similarity 0.86)
• ANSD patients have triple the temporal gap detection thresholds of normal listeners (similarity 0.86)
• ANSD impairs temporal processing while keeping cochlear amplification function intact (similarity 0.85)
• Auditory neuropathy severely impairs fine-structure processing while preserving envelope use (similarity 0.84)
• Mandarin tone perception accuracy falls from 97 percent to 63 percent in auditory neuropathy (similarity 0.82)
• Sensorineural hearing loss disrupts some temporal abilities but not others, with wide individual variability (similarity 0.82)
• Normal-threshold listeners can show temporal coding deficits localized to the auditory brainstem (similarity 0.82)
• Brainstem threshold responses cannot predict a patient’s functional hearing ability. (similarity 0.82)
• ANSD listeners show near-normal frequency resolution while SNHL listeners have poor tuning sharpness (similarity 0.81)
• Auditory nerve phase locking fails at high frequencies, leaving only the place code (similarity 0.81)

Broader Connections

• Auditory neuropathy impairs temporal gap detection while SNHL patients stay near normal. #corroborates (0.95)
• Auditory neuropathy disrupts nerve firing synchrony while preserving cochlear amplification #expands (0.82)
• Neural hearing damage occurs without measurable threshold elevation #expands (0.72)