Bone conduction isolates cochlear function from outer and middle ear disorders

Evidence

Pathological earS show tuning curves that may differ from those produced by normally hearing subjects. To make this comparison possible, the tuning curve of normally hearing subjects is also indicated in the data of listeners with pathological hearing. The first example is of a group with conductive hearing loss (Fig. 16.22). It can be clearly seen, by comparing the tuning curves of normally hearing suhjects with those produced by listeners with conductive hearing loss, that in the latter case the whole tuning curve is shifted upwards by ahout 30 dB. These 30 dB correspond to the hearing loss. This means that although there exists a hearing loss of 30 dB, the frequency resolution outlined in the psychoacoustical tuning curve does not change for the group with conductive hearing loss. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1884 (#expands, via linked claim)

Categorization

• XREF: connects to: Bone-anchored hearing aids bypass outer and middle ear entirely; Sensorineural hearing loss splits into cochlear versus auditory nerve damage; Conductive hearing loss shifts tuning curves upward without degrading frequency resolution. — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1884 (+2 more)

Related

• Bone-anchored hearing aids bypass outer and middle ear entirely (similarity 0.96)
• Conductive hearing loss shifts tuning curves upward without degrading frequency resolution. (similarity 0.86)
• Bone versus air conduction plots distinguish outer-ear from inner-ear hearing loss (similarity 0.85)
• Conductive losses act as filters but sensorineural losses add distortions beyond attenuation. (similarity 0.83)
• Sensorineural hearing loss splits into cochlear versus auditory nerve damage (similarity 0.82)
• Cochlear coiling makes inner nerve damage cause low-frequency hearing loss (similarity 0.81)
• Comparing bone- and air-conduction thresholds distinguishes conductive from sensorineural hearing loss (similarity 0.81)
• Hearing loss combines two distinct pathologies that impair separate processing stages (similarity 0.81)
• Cochlear neuropathy and gain loss impair different intensity ranges of hearing (similarity 0.80)
• Hearing loss squeezes the full loudness range into a much smaller dynamic range (similarity 0.80)
• Auditory neuropathy severely impairs fine-structure processing while preserving envelope use (similarity 0.80)
• Outer hair cell damage removes cochlear compressive nonlinearity (similarity 0.80)
• Damage location in the ear maps onto specific frequency regions of hearing loss. (similarity 0.80)
• Both conductive and sensorineural damage drastically alters absolute threshold curves. (similarity 0.79)
• Conductive hearing loss can be modeled as a filter, but sensorineural loss cannot (similarity 0.79)

Broader Connections

• Sensorineural hearing loss splits into cochlear versus auditory nerve damage #expands (0.80)
• Conductive hearing loss shifts tuning curves upward without degrading frequency resolution. #expands (0.80) — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1884
• Auditory neuropathy disrupts nerve firing synchrony while preserving cochlear amplification #complicates (0.75)
• Conductive and cochlear losses produce different loudness growth patterns #expands (0.75)