Prior suppression studies may be confounded because long stimuli trigger the medial olivocochlear reflex

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: The medial olivocochlear reflex inhibits cochlear compression contralaterally in a graded, output-dependent manner; Measured suppression is underestimated when maskers trigger medial-olivocochlear gain reduction — Dijk, Pim van, Physiology, Psychoacoustics and…, 959; Masker duration gates whether the medial olivocochlear reflex contributes to measured gain (+3 more)

Related

• Measured suppression is underestimated when maskers trigger medial-olivocochlear gain reduction (similarity 0.95)
• Masker duration gates whether the medial olivocochlear reflex contributes to measured gain (similarity 0.95)
• Long suppressor durations elicit MOCR and may underestimate suppression (similarity 0.93)
• Long combined maskers trigger MOCR gain reduction that underestimates true suppression (similarity 0.93)
• Suppression is underestimated by maskers long enough to trigger the MOCR (similarity 0.92)
• Masker durations over 25 ms trigger efferent feedback that reduces measured suppression (similarity 0.91)
• MOCR gain reduction masks true cochlear suppression and underestimates it (similarity 0.90)
• Sound durations longer than 25 ms recruit efferent feedback that reduces measured suppression (similarity 0.90)
• MOCR activation during long stimuli can reduce measured suppression (similarity 0.90)
• Medial olivocochlear reflex suppression requires maskers longer than 20 ms (similarity 0.88)
• Suppressor duration windows distinguish MOCR-mediated gain from cochlear mechanics. (similarity 0.88)
• Basilar membrane suppression can be altered by the sluggish medial olivocochlear reflex (similarity 0.87)
• MOCR gain reduction interacts with suppression to reduce it (similarity 0.87)
• The medial olivocochlear reflex inhibits cochlear compression contralaterally in a graded, output-dependent manner (similarity 0.86)
• Medial olivocochlear reflex requires roughly 20-70 ms of sound to engage. (similarity 0.84)

Broader Connections

• MOCR activation during long stimuli can reduce measured suppression #corroborates (1.00)
• Measured suppression is underestimated when maskers trigger medial-olivocochlear gain reduction #expands (0.85) — Dijk, Pim van, Physiology, Psychoacoustics and…, 959
• Masker duration gates whether the medial olivocochlear reflex contributes to measured gain #expands (0.85)
• The efferent olivocochlear reflex takes 25-40 ms to begin acting #expands (0.80)