A finger-tap ear occlusion enables rapid loudness matching within single trials

Evidence

The lack of summation in the Loudspeaker condition supports the observations made by Cox and Gray ( 2001 ) and by Epstein and Florentine ( 2009 , 2012 ), that, when monaural presentation is achieved by occluding one ear in a sound field, binaural summation can be dramatically reduced. … The lack of summation could have two logical causes. First, there may be some residual sound energy at the occluded ear that is sufficient to maintain its contribution to binaural loudness. Second, there may be some cognitive element which generates loudness constancy through the knowledge that one ear is occluded. — Dijk, Pim van, Physiology, Psychoacoustics and…, 1544 (#expands, via linked claim)

Categorization

• corroborated: 2 independent passages support this claim
• XREF: connects to: A finger in the ear enables rapid 2-interval monaural-binaural loudness comparison; Occluding one ear in a sound field dramatically reduces binaural loudness summation — Dijk, Pim van, Physiology, Psychoacoustics and…, 1544; Residual sound at an occluded ear mediates part of loudness constancy

Related

• A finger in the ear enables rapid 2-interval monaural-binaural loudness comparison (similarity 0.97)
• Finger occlusion of one ear leaves perceived loudness of real external sounds nearly unchanged (similarity 0.93)
• Loss of externalisation when one earphone is deactivated may boost apparent loudness summation (similarity 0.90)
• Meatal occlusion dropping one ear’s loudness 52 percent should still produce measurable summation (similarity 0.90)
• Occluding one ear in a sound field dramatically reduces binaural loudness summation (similarity 0.90)
• Binaural loudness constancy depends on residual low-frequency cues and knowledge of ear occlusion (similarity 0.89)
• Binaural loudness constancy operates independently of stimulus type (similarity 0.89)
• Binaural loudness exceeds monaural loudness, more so for soft than loud sounds (similarity 0.88)
• Occlusion-based monaural hearing dramatically reduces binaural loudness summation. (similarity 0.87)
• Binaural loudness summation shrinks dramatically when one ear is occluded in a sound field. (similarity 0.87)
• Residual sound at an occluded ear mediates part of loudness constancy (similarity 0.87)
• Knowledge that an ear is covered reduces loudness summation (similarity 0.87)
• Finger occlusion enables rapid switching between monaural and binaural listening (similarity 0.86)
• Binaural loudness may exhibit constancy across conditions (similarity 0.85)
• Loudness constancy stems either from residual occluded-ear sound or cognitive knowledge of occlusion. (similarity 0.85)

Broader Connections

• A finger in the ear enables rapid 2-interval monaural-binaural loudness comparison #corroborates (0.82)
• Occluding one ear in a sound field dramatically reduces binaural loudness summation #expands (0.72) — Dijk, Pim van, Physiology, Psychoacoustics and…, 1544
• Residual sound at an occluded ear mediates part of loudness constancy #qualifies (0.72)