Speech processing strategy preferences among 55 European CLARION cochlear implant users

Area of Science:

• Audiology
• Biomedical Engineering
• Neuroscience

Background:

• Cochlear implant technology offers various signal processing strategies.
• Simultaneous analogue stimulation (SAS) and continuous interleaved sampler (CIS) are two distinct strategies.
• Understanding user preference and performance is crucial for optimizing cochlear implant outcomes.

Purpose of the Study:

• To compare user preference and performance between SAS and CIS strategies in adult cochlear implant users.
• To determine if preferences change over the initial 3 months of implant use.
• To identify factors influencing strategy preference.

Main Methods:

• A multicentre study involving 55 adult CLARION cochlear implant users.
• Users were programmed with both SAS and CIS strategies and used each for daily listening.
• Performance was assessed using open-set sentence recognition (auditory alone) at 2, 6, and 12 weeks.
• User preference was recorded via questionnaires.

Main Results:

• 75% of users preferred the CIS strategy, while 25% preferred SAS.
• Subjects demonstrated better performance with their preferred strategy.
• Preferences were established early in the 3-month period and did not change.
• Individual performance correlated with strategy preference.

Conclusions:

• Offering a choice between SAS and CIS strategies benefits cochlear implant users.
• User preference is a significant factor in performance outcomes.
• Early establishment of preference suggests timely programming is important for optimal adaptation.