Abstract To date, no “fail-safe” method exist for using objective measures to optimize programs for cochlear implant users in the absence of behavioral information. One reason for this difficulty may be due to differences in temporal/spatial integration between the slow-rate single-channel stimuli used to obtain the objective measure and the multi-channel higher-rate stimulation used in the “typical” cochlear implant program. These differences are exacerbated as the program stimulation rate is increased. Because typical CII/HiRes 90K™ programs use high stimulation rates, new techniques are being investigated to find more useful measures to assist in programming. These include: (1) charge normalization for pulse width differences between measures; (2) measuring neural responses elicited by high-rate amplitude modulated stimuli on single and multiple electrodes; (3) simultaneous neural response measurements on multiple electrodes; and (4) multi-channel elicited stapedial reflexes. These four techniques will be reviewed focusing on how they may provide information for program optimization in patients where behavioral information is limited.
[1]
Guido F. Smoorenburg,et al.
Speech Perception in Nucleus CI24M Cochlear Implant Users with Processor Settings Based on Electrically Evoked Compound Action Potential Thresholds
,
2002,
Audiology and Neurotology.
[2]
Carolyn J. Brown,et al.
Clinical uses of electrically evoked auditory nerve and brainstem responses
,
2003,
Current opinion in otolaryngology & head and neck surgery.
[3]
J. Jerger,et al.
Prediction of dynamic range from stapedius reflex in cochlear implant patients.
,
1988,
Ear and hearing.
[4]
Carolyn J Brown,et al.
Speech Perception Using Maps Based on Neural Response Telemetry Measures
,
2002,
Ear and hearing.
[5]
E. Hochmair,et al.
EAP Recordings in Ineraid Patients—Correlations with Psychophysical Measures and Possible Implications for Patient Fitting
,
2002,
Ear and hearing.