Interference of modulation rate discrimination of pure tones

1988 ◽  
Vol 84 (S1) ◽  
pp. S140-S140
Author(s):  
William A. Yost ◽  
Stanley Sheft ◽  
Jane Opie
Keyword(s):  
Modulation Rate ◽  
Pure Tones ◽  
Rate Discrimination

Modulation rate discrimination by normal‐hearing and hearing‐impaired listeners

1996 ◽  
Vol 100 (4) ◽  
pp. 2817-2817
Author(s):  
Ken W. Grant ◽  
Van Summers ◽  
Marjorie R. Leek
Keyword(s):  
Normal Hearing ◽  
Hearing Impaired ◽  
Modulation Rate ◽  
Rate Discrimination

scholarly journals Positive impacts of early auditory training on cortical processing at an older age

2017 ◽  
Vol 114 (24) ◽  
pp. 6364-6369 ◽  
Author(s):  
Yuan Cheng ◽  
Guoqiang Jia ◽  
Yifan Zhang ◽  
Huanhuan Hao ◽  
Ye Shan ◽  
...  
Keyword(s):  
Young Adulthood ◽  
Recognition Task ◽  
Older Age ◽  
Auditory Training ◽  
Inhibitory Neurons ◽  
Auditory Nervous System ◽  
Modulation Rate ◽  
Rate Discrimination ◽  
Auditory Cortices ◽  
Temporal Rate

Progressive negative behavioral changes in normal aging are paralleled by a complex series of physical and functional declines expressed in the cerebral cortex. In studies conducted in the auditory domain, these degrading physical and functional cortical changes have been shown to be broadly reversed by intensive progressive training that improves the spectral and temporal resolution of acoustic inputs and suppresses behavioral distractors. Here we found older rats that were intensively trained on an attentionally demanding modulation-rate recognition task in young adulthood substantially retained training-driven improvements in temporal rate discrimination abilities over a subsequent 18-mo epoch—that is, forward into their older age. In parallel, this young-adult auditory training enduringly enhanced temporal and spectral information processing in their primary auditory cortices (A1). Substantially greater numbers of parvalbumin- and somatostatin-labeled inhibitory neurons (closer to the numbers recorded in young vigorous adults) were recorded in the A1 and hippocampus in old trained versus untrained age-matched rats. These results show that a simple form of training in young adulthood in this rat model enduringly delays the otherwise expected deterioration of the physical status and functional operations of the auditory nervous system, with evident training impacts generalized to the hippocampus.

Hearing in Mice via GSR Audiometry

1963 ◽  
Vol 6 (4) ◽  
pp. 359-368 ◽  
Author(s):  
Charles I. Berlin
Keyword(s):  
Inverse Relationship ◽  
Sound Pressure ◽  
Single Units ◽  
Sensitivity Curve ◽  
Basic Tool ◽  
Eighth Nerve ◽  
Pure Tones ◽  
Conditioned Responses ◽  
Frequency Intensity ◽  
Near Threshold

Hearing in mice has been difficult to measure behaviorally. With GSR as the basic tool, the sensitivity curve to pure tones in mice has been successfully outlined. The most sensitive frequency-intensity combination was 15 000 cps at 0-5 dB re: 0.0002 dyne/cm 2 , with responses noted from 1 000 to beyond 70 000 cps. Some problems of reliability of conditioning were encountered, as well as findings concerning the inverse relationship between the size of GSR to unattenuated tones and the sound pressure necessary to elicit conditioned responses at or near threshold. These data agree well with the sensitivity of single units of the eighth nerve of the mouse.

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