Effects of simulated conductive hearing loss on dichotic listening performance for digits.
This experiment assessed conditions under which simulated conductive hearing loss would affect performance on a digit dichotic test. Losses were simulated by insertion of EAR plugs, and each subject served as his/her own control. Performance for left ear plugged and right ear plugged conditions was compared with performance in a normal hearing condition (neither ear plugged). Conductive losses did not affect dichotic performance at test intensities 12 dB above the "knees" of monotic performance-intensity functions for the plugged ears (95% correct points) but did affect dichotic performance for some listeners at intensities that were within 8 dB of the monotic knees.
Niccum
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N
University of Minnesota, Minneapolis.
Speaks
C
C
Katsuki-Nakamura
J
J
Van Tasell
D
D
D000161:Acoustic Stimulation / Q000379:methods; D004007:Dichotic Listening Tests; D034381:Hearing Loss / Q000503:physiopathology*; D006314:Hearing Loss, Conductive / Q000503:physiopathology*; D006320:Hearing Tests; D006801:Humans