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40
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Text
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URL Address
<a href="http://doi.org/10.1121/1.5049369" target="_blank" rel="noreferrer noopener">http://doi.org/10.1121/1.5049369</a>
Pages
667–667
Issue
2
Volume
144
Dublin Core
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Title
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Development of perception and perceptual learning for multi-timescale filtered speech.
Publisher
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The Journal of the Acoustical Society of America
Date
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2018
2018-08
Creator
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Huyck Julia Jones; Rosen Merri J
Description
An account of the resource
The perception of temporally changing auditory signals has a gradual developmental trajectory. Speech is a time-varying signal, and slow changes in speech (filtered at 0-4 Hz) are preferentially processed by the right hemisphere, while the left extracts faster changes (filtered at 22-40 Hz). This work examined the ability of 8- to 19-year-olds to both perceive and learn to perceive filtered speech presented diotically for each filter type (low vs high) and dichotically for preferred or non-preferred laterality. Across conditions, performance improved with increasing age, indicating that the ability to perceive filtered speech continues to develop into adolescence. Across age, performance was best when both bands were presented dichotically, but with no benefit for presentation to the preferred hemisphere. Listeners thus integrated slow and fast transitions between the two ears, benefitting from more signal information, but not in a hemisphere-specific manner. After accounting for potential ceiling effects, learning was greatest when both bands were presented dichotically. These results do not support the idea that cochlear implants could be improved by providing differentially filtered information to each ear. Listeners who started with poorer performance learned more, a factor which could contribute to the positive cochlear implant outcomes typically seen in younger children.
Identifier
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<a href="http://doi.org/10.1121/1.5049369" target="_blank" rel="noreferrer noopener">10.1121/1.5049369</a>
Rights
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2018
Department of Anatomy & Neurobiology
Huyck Julia Jones
NEOMED College of Medicine
Rosen Merri J
The Journal of the Acoustical Society of America
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Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1121/1.4986940" target="_blank" rel="noreferrer noopener">http://doi.org/10.1121/1.4986940</a>
Pages
4822–4822
Issue
6
Volume
141
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Auditory sensitivity of the tufted capuchin (Sapajus apella), a test of allometric predictions.
Publisher
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The Journal of the Acoustical Society of America
Date
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2017
2017-06
Creator
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Ramsier Marissa A; Vinyard Christopher J; Dominy Nathaniel J
Description
An account of the resource
New World monkeys are a diverse primate group and a model for understanding hearing in mammals. However, comparable audiograms do not exist for the larger monkeys, making it difficult to test the hypothesized relationship between interaural distance and high-frequency hearing limit (i.e., the allometric model). Here, the auditory brainstem response (ABR) method is used to assess auditory sensitivity in four tufted capuchins (Sapajus apella), a large monkey with a large interaural distance. A primate-typical four-peak pattern in the ABR waveforms was found with peak latencies from ca. 2 to 12 ms after stimulus onset. Response amplitude decreased linearly with decreasing stimulus level (mean r(2) = 0.93, standard deviation 0.14). Individual variation in each threshold was moderate (mean +/- 7 dB). The 10-dB bandwidth of enhanced sensitivity was 2-16 kHz-a range comparable to smaller monkeys and congruent with the bandwidth of their vocal repertoire. In accord with the general principles of the allometric model, the 60-dB high-frequency limit of S. apella (26 kHz) is lower than those of smaller-headed monkeys; however, it is substantially lower than 44.7 kHz, the value predicted by the allometric model. These findings and other exceptions to the allometric model warrant cautious application and further investigation of other potential selective factors.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1121/1.4986940" target="_blank" rel="noreferrer noopener">10.1121/1.4986940</a>
Rights
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2017
Dominy Nathaniel J
Ramsier Marissa A
The Journal of the Acoustical Society of America
Vinyard Christopher J