Mandarin tone perception accuracy falls from 97 percent to 63 percent in auditory neuropathy

Evidence

The median tone perception performance was 97.2, 86.5, and 62.8 % correct, respectively for the three groups. The performance slightly reduced for the subjects with SNHL, while the ANSD subjects had dramatic decreases in their tone perception performance with a very large individual variability. The right panel of Fig. 1 plots the mean percentages and standard deviations of tone perception responses to the chimeric tone tokens. The subjects with NH relied on FS nearly entirely to perceive lexical tones regardless of E. In comparison with the NH subjects, the subjects with SNHL depended more on E cues to perceive tones, as they had impaired ability to use FS. In contrast to the finding in the NH and SNHL subjects, only 26.5 % of the tone responses were consistent with the FS of the chimeric tone tokens for the ANSD subjects, indicating that the ANSD subjects had more severely impaired ability to use FS in tone perception. On the other hand, the ANSD subjects relied more heavily on E cues in perceiving lexical tones, indicating that the ability of the ANSD subjects to use E cues for lexical tone perception still remained at a reasonable level. — Dijk, Pim van, Physiology, Psychoacoustics and…, 3388 (#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: 2 independent passages support this claim
• XREF: connects to: Auditory neuropathy elevates gap detection thresholds threefold above normal — Dijk, Pim van, Physiology, Psychoacoustics and…, 3380; Cochlear neuropathy harms supra-threshold encoding because noise targets high-threshold auditory fibers — Dijk, Pim van, Physiology, Psychoacoustics and…, 5873; Fine-structure cues carry Mandarin tone perception, not envelope cues — Dijk, Pim van, Physiology, Psychoacoustics and…, 3388 (+5 more)

Related

• Fine-structure cues carry Mandarin tone perception, not envelope cues (similarity 0.89)
• Normal-hearing listeners perceive Mandarin tones via fine structure, impaired ones via envelope (similarity 0.88)
• Auditory neuropathy impairs temporal gap detection while SNHL patients stay near normal. (similarity 0.85)
• Auditory neuropathy elevates gap detection thresholds threefold above normal (similarity 0.84)
• Cochlear neuropathy harms supra-threshold encoding because noise targets high-threshold auditory fibers (similarity 0.84)
• Fine structure dominates lexical tone perception in normal hearing but is lost in ANSD (similarity 0.84)
• Auditory neuropathy severely impairs fine-structure processing while preserving envelope use (similarity 0.83)
• Increasing sensorineural hearing loss shifts tone perception from fine structure to envelope cues (similarity 0.83)
• Cochlear neuropathy and gain loss impair different intensity ranges of hearing (similarity 0.82)
• Auditory neuropathy presents with milder hearing loss than sensorineural loss yet worse temporal processing (similarity 0.82)
• Cochlear neuropathy and gain loss may push AM detection in opposite directions (similarity 0.80)
• SNHL impairs fine-structure use through poor frequency resolution while ANSD impairs temporal resolution (similarity 0.80)
• Fiber-type-specific damage produces distinct loudness perception abnormalities. (similarity 0.78)
• Sensorineural and auditory neuropathy hearing losses impair opposite spectral and temporal abilities (similarity 0.78)
• Cochlear gain loss can compensate for temporal coding deficits in AM detection (similarity 0.78)

Broader Connections

• Fine-structure cues carry Mandarin tone perception, not envelope cues #corroborates (0.90) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3388
• Auditory neuropathy severely impairs fine-structure processing while preserving envelope use #expands (0.88)
• Cochlear neuropathy harms supra-threshold encoding because noise targets high-threshold auditory fibers #expands (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 5873
• Auditory neuropathy presents with milder hearing loss than sensorineural loss yet worse temporal processing #expands (0.82)
• Auditory neuropathy impairs temporal gap detection while SNHL patients stay near normal. #corroborates (0.80)
• Inner-ear damage permanently corrupts higher-level auditory perception, not just thresholds #expands (0.75) — Toole, Floyd E, Sound reproduction- the acoustics and…, 1879
• Fiber-type-specific damage produces distinct loudness perception abnormalities. #responds-to (0.72) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 737