Temporal integration of tone signals by a killer whale (Orcinus orca).
J Acoust Soc Am
; 154(6): 3906-3915, 2023 12 01.
Article
en En
| MEDLINE
| ID: mdl-38117126
ABSTRACT
A psychophysical procedure was used to measure pure-tone detection thresholds for a killer whale (Orcinus orca) as a function of both signal frequency and signal duration. Frequencies ranged between 1 and 100 kHz and signal durations ranged from 50 µs to 2 s, depending on the frequency. Detection thresholds decreased with an increase in signal duration up to a critical duration, which represents the auditory integration time. Integration times ranged from 4 ms at 100 kHz and increased up to 241 ms at 1 kHz. The killer whale data are similar to other odontocete species that have participated in similar experiments. The results have implications for noise impact predictions for signals with durations less than the auditory integration time.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Orca
Límite:
Animals
Idioma:
En
Año:
2023
Tipo del documento:
Article