-
Tytuł:
-
Forward masking of amplitude modulation across ears and its tuning in the modulation domain.
-
Autorzy:
-
Füllgrabe C; School of Sport, Exercise and Health Sciences, Loughborough University, Ashby Road, Loughborough LE11 3TU, United Kingdom.
Sęk A; Cambridge Hearing Group, Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB, United Kingdom.
Moore BCJ; Cambridge Hearing Group, Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB, United Kingdom.
-
Źródło:
-
The Journal of the Acoustical Society of America [J Acoust Soc Am] 2021 Mar; Vol. 149 (3), pp. 1764.
-
Typ publikacji:
-
Journal Article; Research Support, Non-U.S. Gov't
-
Język:
-
English
-
Imprint Name(s):
-
Publication: Melville, NY : American Institute of Physics
Original Publication: Lancaster, Pa. [etc.] : American Institute of Physics for the Acoustical Society of America
-
MeSH Terms:
-
Perceptual Masking*
Auditory Threshold
-
Grant Information:
-
G0701870 United Kingdom MRC_ Medical Research Council; G8717539 United Kingdom MRC_ Medical Research Council
-
Entry Date(s):
-
Date Created: 20210326 Date Completed: 20210705 Latest Revision: 20220317
-
Update Code:
-
20240105
-
DOI:
-
10.1121/10.0003598
-
PMID:
-
33765781
-
Frequency selectivity in the amplitude modulation (AM) domain has been demonstrated using both simultaneous AM masking and forward AM masking. This has been explained using the concept of a modulation filter bank (MFB). Here, we assessed whether the MFB occurs before or after the point of binaural interaction in the auditory pathway by using forward masking in the AM domain in an ipsilateral condition (masker AM and signal AM applied to the left ear with an unmodulated carrier in the right ear) and a contralateral condition (masker AM applied to the right ear and signal AM applied to the left ear). The carrier frequency was 8 kHz, the signal AM frequency, f s , was 40 or 80 Hz, and the masker AM frequency ranged from 0.25 to 4 times f s . Contralateral forward AM masking did occur, but it was smaller than ipsilateral AM masking. Tuning in the AM domain was slightly sharper for ipsilateral than for contralateral masking, perhaps reflecting confusion of the signal and masker AM in the ipsilateral condition when their AM frequencies were the same. The results suggest that there might be an MFB both before and after the point in the auditory pathway where binaural interaction occurs.
