Similar critical duration does not imply normal temporal integration in hearing loss

Evidence

As we observe in Figure 5–22, listeners with hearing loss achieved their lowest threshold at a duration somewhere between 200 and 500 ms. This value is very similar to the critical duration that was observed for listeners with normal hearing. However, a similar critical duration does not automatically imply healthy temporal integration abilities, as we also observe that these listeners did not benefit from increasing the duration of the stimulus to the same degree as listeners with normal hearing. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1115

Categorization

Category: Definitional Content

• DEFINE: Clarifies that ‘critical duration’ (the point of lowest threshold) is distinct from the overall integration slope — a useful conceptual distinction for anyone building a model of impaired temporal processing.

Related

• Similar critical durations do not imply normal temporal integration (similarity 0.96)
• Sensorineural hearing loss reduces temporal integration benefit by half or more (similarity 0.86)
• Hearing-impaired listeners gain half or less benefit from longer stimulus durations (similarity 0.85)
• Temporal integration models divide on time constant assumptions of hundreds versus single-digit milliseconds. (similarity 0.84)
• Clinical audiogram testing standardizes stimulus durations to exploit temporal integration (similarity 0.83)
• Noise-impaired listeners show reduced temporal integration, only 4 dB per decade (similarity 0.83)
• Hearing loss reduces audibility and restricts usable bandwidth for temporal processing (similarity 0.82)
• Sensorineural hearing loss disrupts some temporal abilities but not others, with wide individual variability (similarity 0.82)
• Audibility thresholds rise about 10 dB per tenfold sound duration reduction (similarity 0.82)
• The ear integrates energy over time to lower detection thresholds for longer sounds (similarity 0.81)
• Faster modulation triggers ear’s temporal integration while slower modulation engages short-term memory (similarity 0.80)
• Hearing loss extends internal masker persistence and shrinks duration benefits (similarity 0.80)
• Wider stimulus bandwidths improve listeners’ ability to detect temporal gaps (similarity 0.79)
• Gap detection and amplitude modulation are usually intact after sensorineural loss (similarity 0.79)
• Hearing integrates sound intensity over a fixed 200 ms window (similarity 0.79)