An adaptive clinical test of temporal resolution

Area of Science:

• Audiology
• Neuroscience
• Speech and Hearing Sciences

Background:

• Auditory Processing Disorder (APD) diagnosis benefits from temporal gap detection tests.
• Current laboratory methods for measuring temporal resolution are not clinically practical.
• A need exists for a feasible clinical tool to assess temporal gap detection.

Purpose of the Study:

• To introduce and evaluate the Adaptive Test of Temporal Resolution (ATTR) as a clinical measure.
• To obtain preliminary data on the ATTR's performance in young adults.
• To assess the clinical feasibility of the ATTR for APD diagnostic batteries.

Main Methods:

• The ATTR was administered to 30 young adults with normal hearing.
• Gap detection thresholds (GDTs) were measured using the ATTR, the Random Gap Detection Test, and a laboratory psychophysical procedure.
• Data were collected from participants with normal hearing to establish baseline performance.

Main Results:

• Mean GDTs using the ATTR were 2.2 ms.
• ATTR GDTs were consistent with laboratory procedure GDTs (3.2 ms).
• ATTR GDTs were significantly smaller than those from the Random Gap Detection Test (7.0 ms).

Conclusions:

• The ATTR demonstrates potential as a clinically feasible tool for APD assessment.
• Its use of standard adaptive psychophysical methodology in a computer application enhances clinical utility.
• The ATTR can be a valuable addition to auditory processing disorder test batteries without requiring specialized hardware.