Temporal modulation detection is independent of hearing threshold

Evidence

Average AM detection thresholds were similar for NH and mild HI listeners supporting the observation that temporal modulation detection is not determined by the hearing threshold (Moore et al. 1996 ). In fact, the variation in thresholds for the NH listeners was significantly correlated to the EFR slope metric (panel C) demonstrating that temporal coding fidelity predicts performance when hearing thresholds are normal (see also Bharadwaj et al. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5885

Listeners having difficulty detecting modulation will need more modulation to detect it, therefore requiring a larger modulation depth (m) at threshold. Higher modulation detection thresholds would indicate difficulties following the changes in amplitude over time, compared with lower modulation detection thresholds. We could also interpret this result to indicate that the modulation rates associated with high modulation detection thresholds are not well represented in the auditory system. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1008

AM detection thresholds were similar for NH and mild HI listeners supporting the observation that temporal modulation detection is not determined by the hearing threshold (Moore et al. 1996 ). In fact, the variation in thresholds for the NH listeners was significantly correlated to the EFR slope metric (panel C) demonstrating that temporal coding fidelity predicts performance when hearing thresholds are normal (see also Bharadwaj et al. — Dijk, Pim van, Physiology, Psychoacoustics and…, 5885

Categorization

• XREF: Directly serves the reader’s goal of understanding hearing-impaired perception — this is the interpretive bridge from measured thresholds to neural representation.
• corroborated: 3 independent passages support this claim — Dijk, Pim van, Physiology, Psychoacoustics and…, 5885; Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1008