Anticipatory Middle-Ear Reflex Activity from Noisy Toys Middle-ear reflex activity was measured in 14 listeners in response to visual and acoustic exposure to each of seven noisy toys (such as a cap gun, party horn, cow bell, and so forth). Anticipatory middle-ear reflex (AMER) activity was a common occurrence. Normal middle-ear reflex generally occurred after the sound ... Articles
Articles  |   August 01, 1975
Anticipatory Middle-Ear Reflex Activity from Noisy Toys
 
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Article Information
Articles   |   August 01, 1975
Anticipatory Middle-Ear Reflex Activity from Noisy Toys
Journal of Speech and Hearing Disorders, August 1975, Vol. 40, 320-326. doi:10.1044/jshd.4003.320
History: Received September 30, 1974 , Accepted November 23, 1974
 
Journal of Speech and Hearing Disorders, August 1975, Vol. 40, 320-326. doi:10.1044/jshd.4003.320
History: Received September 30, 1974; Accepted November 23, 1974

Middle-ear reflex activity was measured in 14 listeners in response to visual and acoustic exposure to each of seven noisy toys (such as a cap gun, party horn, cow bell, and so forth). Anticipatory middle-ear reflex (AMER) activity was a common occurrence. Normal middle-ear reflex generally occurred after the sound exposure. AMERs generally occurred in the two seconds prior to sound exposure but as early as 10 seconds before sound exposure. Loudness ratings and exposure SPLs were obtained. The presence of acoustically evoked middle-ear (ME) reflex activity and AMERs to the toys was generally unrelated to SPL or reflex threshold. Many reflex responses occurred in response to exposure SPLs below reflex threshold and with low anticipated loudness rating.

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