The perception of ultrasonic vocalizations by laboratory mice following intense noise exposures.
J Acoust Soc Am
; 155(2): 867-878, 2024 02 01.
Article
in En
| MEDLINE
| ID: mdl-38310604
ABSTRACT
Noise-induced hearing loss interacts with age, sex, and listening conditions to affect individuals' perception of ecologically relevant stimuli like speech. The present experiments assessed the impact of age and sex on vocalization detection by noise-exposed mice trained to detect a downsweep or complex ultrasonic vocalization in quiet or in the presence of a noise background. Daily thresholds before and following intense noise exposure were collected longitudinally and compared across several factors. All mice, regardless of age, sex, listening condition, or stimulus type showed their poorest behavioral sensitivity immediately after the noise exposure. There were varying degrees of recovery over time and across factors. Old-aged mice had greater threshold shifts and less recovery compared to middle-aged mice. Mice had larger threshold shifts and less recovery for downsweeps than for complex vocalizations. Female mice were more sensitive, had smaller post-noise shifts, and had better recovery than males. Thresholds in noise were higher and less variable than thresholds in quiet, but there were comparable shifts and recovery. In mice, as in humans, the perception of ecologically relevant stimuli suffers after an intense noise exposure, and results differ from simple tone detection findings.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Speech Perception
/
Hearing Loss, Noise-Induced
Type of study:
Etiology_studies
Limits:
Animals
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Acoust Soc Am
Year:
2024
Document type:
Article
Affiliation country:
Estados Unidos