Factors influencing tests of auditory processing: a perspective on current issues and relevant concerns

Area of Science:

• Audiology
• Neuroscience
• Psychophysics

Background:

• Central auditory processing disorders (CAPDs) assessment is often confounded by non-auditory abilities like memory and attention.
• Current testing paradigms, such as verbal reproduction, can introduce methodological shortcomings.
• There is a need for improved theoretical frameworks and methodological strategies in APD assessment.

Purpose of the Study:

• To advocate for a stronger theoretical framework for APD assessment.
• To propose improved methodological strategies, including adaptive forced-choice psychophysical methods and matched tasks across sensory modalities.
• To enhance the construct validity of APD diagnosis and evolve preferred testing methods.

Main Methods:

• Examination of commonly used methods in auditory processing disorder (APD) studies.
• Comparison of current methodologies with contemporary psychophysical methods.
• Emphasis on computer-controlled forced-choice paradigms.

Main Results:

• Many APD study procedures introduce confounding factors.
• Computer-controlled forced-choice psychophysical methods can minimize these confounds.
• Current methods may not accurately reflect auditory perception due to non-auditory influences.

Conclusions:

• Minimizing memory and attentional demands and complex motor responses can avoid diagnostic ambiguities.
• Computer-controlled forced-choice psychophysical paradigms are recommended for valid APD diagnosis.
• Utilizing matched tasks across multiple sensory modalities further enhances diagnostic prospects.