Design and evaluation of a personal digital assistant-based research platform for cochlear implants

Area of Science:

• Biomedical Engineering
• Neuroscience
• Audiology

Background:

• Cochlear implant research requires versatile and portable tools for complex experimental designs.
• Existing platforms may lack the flexibility needed for evaluating novel speech processing algorithms and neurophysiologic studies.

Purpose of the Study:

• To design, develop, and clinically evaluate a personal digital assistant (PDA)-based research platform for cochlear implants.
• To enable researchers to conduct experiments with Cochlear Corporation implants, including novel algorithm evaluation and neurophysiologic studies.

Main Methods:

• Development of a portable research platform comprising a processor, stimulator, and recording unit.
• Implementation of real-time and offline stimulation modes for electric-only and electric-plus-acoustic stimulation.
• Conducting an acute study with cochlear implant users to assess speech intelligibility in quiet and noisy conditions.

Main Results:

• The platform demonstrated versatility and portability for complex cochlear implant research.
• Speech intelligibility results from the acute study were comparable to users' clinical processors.
• The platform showed promise for future chronic studies in cochlear implant users.

Conclusions:

• The developed PDA-based platform offers a flexible and effective tool for advancing cochlear implant research.
• The platform's capabilities support the evaluation of new speech processing strategies and neurophysiologic investigations.
• Clinical evaluation indicates the platform's potential for significant contributions to understanding cochlear implant function and improving patient outcomes.