Recruitment patients could disambiguate loudness from intensity encoding in fMRI

Evidence

The largely linear relationship between categorical loudness and sound intensity over the range of presented levels, as well as the fact that our participants were from a rather homogenous group of normal hearing listeners with similar loudness perception, might have limited the ability to differentiate between the contributions of both measures to neural activation in the human auditory system. A promising next step would be the inclusion of hearing impaired participants characterized by an altered relationship between sound intensity and perceived loudness (e.g., loudness recruitment). Moreover, this approach could provide additional valuable information about the nature of hearing disorders associated with distorted loudness perceptions. This in the end might open a potential for the diagnostic use of auditory fMRI. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2645 (#expands, via linked claim)

Categorization

• XREF: connects to: Recruitment can explain why loudness summation is absent in noise-induced hearing loss — Professor Dr.-Ing. Hugo Fastl, Professor Dr.-Ing. Eberhard, Psychoacoustics- Facts and Models, 1960; Distinct brain regions process sound intensity versus perceived loudness differently — Dijk, Pim van, Physiology, Psychoacoustics and…, 2607; Auditory cortex activation linearly reflects perceived loudness rather than physical intensity — Dijk, Pim van, Physiology, Psychoacoustics and…, 2610 (+6 more)

Related

• Hearing-impaired patients with loudness recruitment could disentangle intensity and loudness encoding. (similarity 0.95)
• Understanding loudness’s neural basis could improve recruitment treatment (similarity 0.95)
• Loudness recruitment in hearing loss could be probed via Heschl’s gyrus fMRI (similarity 0.94)
• Loudness recruitment in impaired listeners could reveal how cortex encodes perceived level (similarity 0.92)
• Recruitment can explain why loudness summation is absent in noise-induced hearing loss (similarity 0.89)
• Testing hearing-impaired listeners could reveal how loudness distortion maps to brain activity (similarity 0.88)
• Distinct brain regions process sound intensity versus perceived loudness differently (similarity 0.87)
• Posterior medial Heschl’s gyrus activation best predicts individual perceived loudness (similarity 0.87)
• Comparing normal and recruiting-impaired listeners would reveal where loudness is decoded (similarity 0.86)
• Hearing-impaired listeners experience a steeper loudness-growth function known as recruitment (similarity 0.85)
• fMRI can map how sound intensity and loudness interact across the auditory pathway (similarity 0.85)
• Whether loudness recruitment degrades speech perception remains unsettled (similarity 0.85)
• Auditory cortex activation linearly reflects perceived loudness rather than physical intensity (similarity 0.85)
• Loudness recruitment shrinks dynamic range while preserving overall loudness (similarity 0.83)
• The neural site where intensity becomes loudness remains unknown. (similarity 0.83)

Broader Connections

• Hearing-impaired patients with loudness recruitment could disentangle intensity and loudness encoding. #corroborates (0.90)
• Loudness recruitment in hearing loss could be probed via Heschl’s gyrus fMRI #expands (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 2645
• Understanding loudness’s neural basis could improve recruitment treatment #expands (0.80)
• Whether loudness recruitment degrades speech perception remains unsettled #expands (0.72) — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1693
• Subcortical auditory structures encode sound intensity linearly while cortex compresses it. #expands (0.70) — Dijk, Pim van, Physiology, Psychoacoustics and…, 2645