Hearing loss varies independently across different frequency ranges

Evidence

A hearing threshold shift, especially when of sensorineural origin, is often frequency dependent. Consequently, hearing can be, for instance, fully functional in one frequency range, have linear attenuation in another frequency range, and recruitment in a third frequency range. This poses certain challenges in the design and individual fitting of hearing instruments, as discussed later in Section 19.5. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2660

Categorization

• DEFINE: Explains that sensorineural threshold shift is frequency-dependent, with different mechanisms (functional, linear attenuation, recruitment) in different bands.
• corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 2660
• XREF: connects to: Noise-induced hearing loss can unmask audible difference tones; Sloping or rising hearing loss can create contradictory pitch codes across frequency regions; Averaging hearing loss across frequencies can mask serious impairment — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2360 (+2 more)

Broader Connections

• Averaging hearing loss across frequencies can mask serious impairment #expands (0.95) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2360
• Auditory sensitivity varies nonuniformly across the frequency range #corroborates (0.95) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 648
• Frequency-specific hearing loss drives multi-band hearing aid processing #expands (0.90)