Report for: Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing

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Chapter title	Minimum Audible Angles Measured with Simulated Normally-Sized and Oversized Pinnas for Normal-Hearing and Hearing-Impaired Test Subjects
Chapter number	22
Book title	Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing
Published in	Advances in experimental medicine and biology, April 2016
DOI	10.1007/978-3-319-25474-6_22
Pubmed ID	27080661
Book ISBNs	978-3-31-925472-2, 978-3-31-925474-6
Authors	Filip M. Rønne, Søren Laugesen, Niels S. Jensen, Julie H. Pedersen
Editors	Pim van Dijk, Deniz Başkent, Etienne Gaudrain, Emile de Kleine, Anita Wagner, Cris Lanting
Abstract	The human pinna introduces spatial acoustic cues in terms of direction-dependent spectral patterns that shape the incoming sound. These cues are specifically useful for localization in the vertical dimension. Pinna cues exist at frequencies above approximately 5 kHz, a frequency range where people with hearing loss typically have their highest hearing thresholds. Since increased thresholds often are accompanied by reduced frequency resolution, there are good reasons to believe that many people with hearing loss are unable to discriminate these subtle spectral pinna-cue details, even if the relevant frequency region is amplified by hearing aids.One potential solution to this problem is to provide hearing-aid users with artificially enhanced pinna cues-as if they were listening through oversized pinnas. In the present study, it was tested whether test subjects were better at discriminating spectral patterns similar to enlarged-pinna cues. The enlarged-pinna patterns were created by transposing (T) generic normal-sized pinna cues (N) one octave down, or by using the approach (W) suggested by Naylor and Weinrich (System and method for generating auditory spatial cues, United States Patent, 2011). The experiment was cast as a determination of simulated minimum audible angle (MAA) in the median saggital plane. 13 test subjects with sloping hearing loss and 11 normal-hearing test subjects participated. The normal-hearing test subjects showed similar discrimination performance with the T, W, and N-type simulated pinna cues, as expected. However, the results for the hearing-impaired test subjects showed only marginally lower MAAs with the W and T-cues compared to the N-cues, while the overall discrimination thresholds were much higher for the hearing-impaired compared to the normal-hearing test subjects.

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Twitter Demographics

The data shown below were collected from the profiles of 6 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Geographical breakdown

Country	Count	As %
Denmark	3	50%
United Kingdom	2	33%
Australia	1	17%

Demographic breakdown

Type	Count	As %
Members of the public	4	67%
Scientists	2	33%

Mendeley readers

The data shown below were compiled from readership statistics for 13 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country	Count	As %
Unknown	13	100%

Demographic breakdown

Readers by professional status	Count	As %
Student > Ph. D. Student	3	23%
Researcher	3	23%
Other	2	15%
Student > Doctoral Student	2	15%
Student > Master	1	8%
Other	1	8%
Unknown	1	8%

Readers by discipline	Count	As %
Psychology	3	23%
Engineering	3	23%
Medicine and Dentistry	3	23%
Nursing and Health Professions	2	15%
Unknown	2	15%

Attention Score in Context

This research output has an Altmetric Attention Score of 6. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 April 2016.

All research outputs

#5,864,787

of 22,862,742 outputs

Outputs from Advances in experimental medicine and biology

#916

of 4,951 outputs

Outputs of similar age

#82,698

of 299,054 outputs

Outputs of similar age from Advances in experimental medicine and biology

of 96 outputs

Altmetric has tracked 22,862,742 research outputs across all sources so far. This one has received more attention than most of these and is in the 74th percentile.

So far Altmetric has tracked 4,951 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.1. This one has done well, scoring higher than 81% of its peers.

Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 299,054 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 72% of its contemporaries.

We're also able to compare this research output to 96 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 91% of its contemporaries.

Physiology, Psychoacoustics and Cognition in Normal and Impaired Hearing

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Geographical breakdown

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Attention Score in Context