Abstract:
:Loudness perception can be studied based on the assumption that sounds of equal loudness elicit equal reaction time (RT; or "response latency"). We measured the underwater RTs of a harbor porpoise to narrowband frequency-modulated sounds and constructed six equal-latency contours. The contours paralleled the audiogram at low sensation levels (high RTs). At high-sensation levels, contours flattened between 0.5 and 31.5 kHz but dropped substantially (RTs shortened) beyond those frequencies. This study suggests that equal-latency-based frequency weighting can emulate noise perception in porpoises for low and middle frequencies but that the RT-loudness correlation is relatively weak for very high frequencies.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Wensveen PJ,Huijser LA,Hoek L,Kastelein RAdoi
10.1007/978-1-4939-2981-8_153subject
Has Abstractpub_date
2016-01-01 00:00:00pages
1223-8eissn
0065-2598issn
2214-8019journal_volume
875pub_type
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