Right-left correlation in guinea pig ears after noise exposure
(1990) In Acta Oto-Laryngologica 109(1-2). p.41-48- Abstract
- In order to investigate whether experimental material consisting of noise-exposed animals should be regarded as 'ears' or 'animals', a comparison was made between the permanent threshold shifts in the right and left ears in 53 groups of noise-exposed guinea-pigs, with 5 animals in each group. The action potential (N1) thresholds were measured at fourteen frequencies in both ears. In the noise-exposed animals, the threshold elevations were up to 40 dB. The average right-left correlation coefficient within each group was about 0.79, regardless of noise energy. The degree of correlation was significantly greater after impact noise than after continuous noise. As a consequence of the high right-left correlation, the informative value of... (More)
- In order to investigate whether experimental material consisting of noise-exposed animals should be regarded as 'ears' or 'animals', a comparison was made between the permanent threshold shifts in the right and left ears in 53 groups of noise-exposed guinea-pigs, with 5 animals in each group. The action potential (N1) thresholds were measured at fourteen frequencies in both ears. In the noise-exposed animals, the threshold elevations were up to 40 dB. The average right-left correlation coefficient within each group was about 0.79, regardless of noise energy. The degree of correlation was significantly greater after impact noise than after continuous noise. As a consequence of the high right-left correlation, the informative value of measuring a second ear in the same animal was, in our experiments, only 11% of that of the first one. No correlation could be found between the degree of skin pigmentation and the threshold elevation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1105181
- author
- Grenner, Jan LU ; Nilsson, Per and Katbamna, Bharti
- organization
- publishing date
- 1990
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- acoustic trauma, interaural asymmetry, melanin
- in
- Acta Oto-Laryngologica
- volume
- 109
- issue
- 1-2
- pages
- 41 - 48
- publisher
- Taylor & Francis
- external identifiers
-
- pmid:2309558
- scopus:0025017691
- ISSN
- 1651-2251
- DOI
- 10.3109/00016489009107413
- language
- English
- LU publication?
- yes
- id
- 3ccbc4f2-b817-4e81-9172-5e94fbd3d649 (old id 1105181)
- date added to LUP
- 2016-04-01 16:11:24
- date last changed
- 2021-01-03 11:18:50
@article{3ccbc4f2-b817-4e81-9172-5e94fbd3d649,
abstract = {{In order to investigate whether experimental material consisting of noise-exposed animals should be regarded as 'ears' or 'animals', a comparison was made between the permanent threshold shifts in the right and left ears in 53 groups of noise-exposed guinea-pigs, with 5 animals in each group. The action potential (N1) thresholds were measured at fourteen frequencies in both ears. In the noise-exposed animals, the threshold elevations were up to 40 dB. The average right-left correlation coefficient within each group was about 0.79, regardless of noise energy. The degree of correlation was significantly greater after impact noise than after continuous noise. As a consequence of the high right-left correlation, the informative value of measuring a second ear in the same animal was, in our experiments, only 11% of that of the first one. No correlation could be found between the degree of skin pigmentation and the threshold elevation.}},
author = {{Grenner, Jan and Nilsson, Per and Katbamna, Bharti}},
issn = {{1651-2251}},
keywords = {{acoustic trauma; interaural asymmetry; melanin}},
language = {{eng}},
number = {{1-2}},
pages = {{41--48}},
publisher = {{Taylor & Francis}},
series = {{Acta Oto-Laryngologica}},
title = {{Right-left correlation in guinea pig ears after noise exposure}},
url = {{http://dx.doi.org/10.3109/00016489009107413}},
doi = {{10.3109/00016489009107413}},
volume = {{109}},
year = {{1990}},
}