Auditory neuropathy impairs temporal gap detection while SNHL patients stay near normal.

Evidence

The effect of level on the gap detection threshold has clear implications for the ultimate utility of using gap detection as a clinical test of temporal acuity. A listener must be presented with a stimulus that is well above his threshold in order to achieve the lowest threshold possible. Thus, gap detection thresholds can be difficult to interpret when measured in listeners who have large amounts of hearing loss. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 964 (#corroborates, via linked claim)

Cochlear neuropathy is associated with a reduction in the number and types of auditory nerve (AN) fibers responsible for robust afferent transmission of sound (Kujawa and Liberman 2009 ). Whereas cochlear gain loss affects the whole dynamic range of sound intensities, cochlear neuropathy is thought to affect sound encoding at supra-threshold levels as high-threshold AN fibers are most sensitive to noise exposure (Furman et al. 2013 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 5873 (#expands, via linked claim)

Categorization

• corroborated: 3 independent passages support this claim
• XREF: connects to: SNHL impairs fine-structure use through poor frequency resolution while ANSD impairs temporal resolution — Dijk, Pim van, Physiology, Psychoacoustics and…, 3380; Auditory neuropathy elevates gap detection thresholds threefold above normal — Dijk, Pim van, Physiology, Psychoacoustics and…, 3380; Auditory neuropathy severely impairs fine-structure processing while preserving envelope use (+8 more)

Related

• Auditory neuropathy elevates gap detection thresholds threefold above normal (similarity 0.92)
• Auditory neuropathy presents with milder hearing loss than sensorineural loss yet worse temporal processing (similarity 0.89)
• Elevated gap detection thresholds in hearing loss stem from threshold elevation, not temporal pathology (similarity 0.88)
• Auditory neuropathy severely impairs fine-structure processing while preserving envelope use (similarity 0.86)
• Cochlear neuropathy harms supra-threshold encoding because noise targets high-threshold auditory fibers (similarity 0.86)
• Mandarin tone perception accuracy falls from 97 percent to 63 percent in auditory neuropathy (similarity 0.85)
• Cochlear neuropathy and gain loss may push AM detection in opposite directions (similarity 0.85)
• Cochlear neuropathy and gain loss impair different intensity ranges of hearing (similarity 0.84)
• Normal-threshold listeners can show temporal coding deficits localized to the auditory brainstem (similarity 0.84)
• Hearing thresholds add almost no predictive power beyond age and encoding measures (similarity 0.84)
• Gap detection and amplitude modulation are usually intact after sensorineural loss (similarity 0.83)
• Cochlear gain loss can compensate for temporal coding deficits in AM detection (similarity 0.83)
• Brainstem threshold responses cannot predict a patient’s functional hearing ability. (similarity 0.83)
• Sensorineural and auditory neuropathy hearing losses impair opposite spectral and temporal abilities (similarity 0.82)
• Sensory neural hearing loss preserves temporal resolution when audibility is compensated (similarity 0.82)

Broader Connections

• Elevated gap detection thresholds in hearing loss stem from threshold elevation, not temporal pathology #corroborates (0.90) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 964
• Cochlear neuropathy harms supra-threshold encoding because noise targets high-threshold auditory fibers #expands (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 5873
• Neural hearing damage occurs without measurable threshold elevation #corroborates (0.85)
• Gap detection and amplitude modulation remain intact in sensorineural hearing loss #contradicts (0.82)
• Sensorineural hearing loss splits into cochlear versus auditory nerve damage #expands (0.80)