Absolute Threshold, Noise-Induced Hearing Loss, and Cochlear Pathology in the Chinchilla [PDF]
Absolute thresholds were determined in the chinchilla using a new behavioral procedure. The animal was reinforced with a 45-mg pellet (Noyes) for depressing and holding a key 1–7 sec and either releasing it during a 2-sec tone presentation or not releasing it during a 2-sec catch trial.
Carolyn S. Clark, William W. Clark
semanticscholar +5 more sources
Frequency-dependent changes in absolute hearing threshold caused by perception of a previous sound [PDF]
This study investigated effects of a previous sound presentation at the absolute threshold of hearing. Changes in threshold were measured when a pure tone at 60dB SPL preceded a test tone in the contra- or ipsilateral ear. When the previous and test sounds both had the same frequency of 500Hz, threshold decreased approximately 2dB in the contralateral ...
Hiroshi Hasegawa +2 more
semanticscholar +6 more sources
Absolute threshold of hearing decreased by perceiving a previous sound
In the present study, we investigated the effect of a previous sound on loudness at the absolute threshold of hearing. The change in the absolute threshold of hearing was measured when a pure tone preceded the test tone for the measurement of the threshold.
Masao Kasuga +2 more
semanticscholar +5 more sources
Changes in absolute hearing threshold depending on sound pressure level of a previous sound
In this study, changes of the absolute threshold of hearing were measured by presenting a previous sound in the contralateral or ipsilateral ear. The sound pressure level (SPL) of a previous sound was 40, 60, or 80 dB to investigate the dependence of the threshold change on the SPL of a previous sound.
Hiroshi Hasegawa +2 more
semanticscholar +5 more sources
Hearing in the starling (Sturnus vulgaris): Absolute thresholds and critical ratios [PDF]
Operant conditioning and a psychophysical tracking procedure were used to measure auditory thresholds for pure tones in quiet and in noise for a European starling. The audibility curve for the starling is similar to the auditory sensitivity reported earlier for this species using a heart-rate conditioning procedure.
Stewart H. Hulse +3 more
openaire +3 more sources
Speech detection and speech intelligibility measured binaurally in groups of listeners with, at most, "slight" hearing loss and who are partitioned on the basis of their absolute thresholds at 4 kHz [PDF]
Funding: Office of Naval Research: ONR N00014-18-1 ...
Bernstein, Leslie R. +1 more
openaire +2 more sources
Absolute Thresholds for Hearing Measured by Small Earphone and Acoustic Gains of Hearing Aid
The absolute thresholds for hearing were measured by small earphone which was calibrated in 2cc coupler in 16 deaf children with and without hearing aids. And the differences of these values at each frequency were compared with the gains of the hearing aid.Theoretically the differences must be corresponded with the gain of the aid, but practically they
Akira Totoki
openaire +4 more sources
Assessment of effects of hearing aid fitting on the perceptual characteristics of tinnitus
Background Evidence of systematic relationships between the perceptual characteristics of tinnitus, like its pitch or loudness, and those of the absolute hearing threshold curves, like the presence and degree of hearing loss at certain frequencies, would
Moustafa El Kousht +4 more
doaj +2 more sources
Involvement of Cholesterol Metabolic Pathways in Recovery from Noise-Induced Hearing Loss
The objective of this study was to explore the molecular mechanisms of acute noise-induced hearing loss and recovery of steady-state noise-induced hearing loss using miniature pigs.
Na Sai +9 more
doaj +2 more sources
Brainstem auditory evoked responses: Objective hearing threshold assessment in Holstein cows
Background: Animal audiology utilizes brainstem auditory evoked responses (BAER) as a non-invasive tool to assess hearing in animals, including Holstein dairy cows. Understanding cows’ auditory capabilities is critical for their welfare, especially given
Alida Naudé +4 more
doaj +2 more sources

