A Comparison of Behavioral Methods for Indexing the Auditory Processing of Temporal Fine Structure Cues.
Eric C Hoover, Brianna N Kinney, Karen L Bell and 2 others
PMID 31145649WHAT IT FOUND
In young adults with normal hearing, one-ear frequency modulation detection was the most practical monaural temporal fine structure test.
Gap detection was least stable. The fine structure scores did not line up with speech-in-noise scores.
Key findings
01One-ear frequency modulation detection was the most efficient candidate test of monaural temporal fine structure.
02Gap detection was the least stable task, with large changes between first and final threshold estimates.
03Temporal fine structure tasks did not line up with QuickSIN or SR2 speech-in-noise scores.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study included only young adults with normal hearing, so it cannot show how these tests perform in people with hearing loss, auditory processing disorders, or brain injury. The sample of eleven participants was too small to detect small relationships between temporal fine structure tests and speech-in-noise scores. The tests were not optimized for clinical use, and the efficiency ranking could change if stimulus length, response procedure, or tracking rules were altered. The speech-in-noise results were normal, and one listener was an outlier for spatial release from masking. No diagnostic accuracy or treatment outcome was tested.
Declared interests
Funding: NIH Grant R01 DC 15051 awarded to Frederick Gallun.
The easy way to misread this
Do not conclude that these temporal fine structure tests diagnose auditory processing disorders or improve speech-in-noise care. The study tested only young adults with normal hearing and did not establish clinical utility.