Presentation level determination for CV tokens using a computer-controlled adaptive procedure.
The feasibility of using a computer-controlled adaptive procedure to find maximum monotic performance for consonant-vowel (CV) stimuli was evaluated and compared to the procedure typically used to determine a performance-intensity function in two experiments. In experiment I, the computer-controlled adaptive procedure and the typical manual procedure were evaluated on 26 normally hearing listeners. Results indicated that the shape of the performance-intensity functions was similar for both procedures with the computer-controlled adaptive procedure selecting a higher presentation level. The test-retest reliability for the computer-controlled adaptive procedure was good with a mean difference on retest of 1.2 dB. In experiment II, the same procedures were evaluated using 9 sensorineural hearing impaired subjects. Again similar configuration between functions was observed. The primary advantage of the computer-controlled adaptive procedure for both subject groups is efficiency in terms of time of administration and number of CV stimuli used.
Wall
L G
LG
Ohio State University.
Davidson
S A
SA
Fox
R A
RA
D000293:Adolescent; D000328:Adult; D001309:Auditory Threshold; D003143:Communication Devices for People with Disabilities; D003201:Computers; D004007:Dichotic Listening Tests / Q000295:instrumentation*; D006316:Hearing Loss, High-Frequency / Q000175:diagnosis; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis; D006320:Hearing Tests / Q000295:instrumentation*; D006801:Humans; D008875:Middle Aged; D008905:Minicomputers; D010700:Phonetics; D012016:Reference Values; D012656:Self-Help Devices; D012984:Software; D013063:Speech Discrimination Tests / Q000295:instrumentation; D013067:Speech Perception