Masker duration gates whether the medial olivocochlear reflex contributes to measured gain

Evidence

When suppression is measured with combined maskers long enough to elicit MOCR-induced gain reduction, suppression may be underestimated. However, even when measured with the shorter combined maskers, older adults had less suppression than younger adults. Evidence from animal studies suggests that gain reduction from the MOCR and suppression interact, resulting in decreased suppression (Winslow and Sachs 1987 ; Kawase et al. 1993 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 959 (#expands, via linked claim)

Categorization

• XREF: connects to: Medial olivocochlear efferents actively modulate cochlear gain during binaural listening — Dijk, Pim van, Physiology, Psychoacoustics and…, 1941; Prior suppression studies may be confounded because long stimuli trigger the medial olivocochlear reflex; Measured suppression is underestimated when maskers trigger medial-olivocochlear gain reduction — Dijk, Pim van, Physiology, Psychoacoustics and…, 959 (+1 more)

Related

• Prior suppression studies may be confounded because long stimuli trigger the medial olivocochlear reflex (similarity 0.95)
• Measured suppression is underestimated when maskers trigger medial-olivocochlear gain reduction (similarity 0.94)
• Masker durations over 25 ms trigger efferent feedback that reduces measured suppression (similarity 0.92)
• Suppression is underestimated by maskers long enough to trigger the MOCR (similarity 0.92)
• Long combined maskers trigger MOCR gain reduction that underestimates true suppression (similarity 0.92)
• Long suppressor durations elicit MOCR and may underestimate suppression (similarity 0.91)
• MOCR activation during long stimuli can reduce measured suppression (similarity 0.91)
• MOCR gain reduction masks true cochlear suppression and underestimates it (similarity 0.91)
• Sound durations longer than 25 ms recruit efferent feedback that reduces measured suppression (similarity 0.90)
• Suppressor duration windows distinguish MOCR-mediated gain from cochlear mechanics. (similarity 0.89)
• Masking measured within the efferent onset delay isolates gain reduction cleanly (similarity 0.88)
• Medial olivocochlear reflex suppression requires maskers longer than 20 ms (similarity 0.87)
• MOCR gain reduction interacts with suppression to reduce it (similarity 0.87)
• Comparing linear off-frequency and compressive on-frequency maskers estimates cochlear gain (similarity 0.86)
• Medial olivocochlear efferents actively modulate cochlear gain during binaural listening (similarity 0.84)

Broader Connections

• Measured suppression is underestimated when maskers trigger medial-olivocochlear gain reduction #expands (0.92) — Dijk, Pim van, Physiology, Psychoacoustics and…, 959
• Signal durations under the efferent onset delay isolate the efferent effect on cochlear gain #qualifies (0.80)