Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas.
The effects of prolonged sound stimuli (tone pip trains) on evoked potentials (the rate following response, RFR) were investigated in a beluga whale. The stimuli (rhythmic tone pips) were of 64 kHz frequency at levels from 80 to 140 dB re 1 μPa. During stimulation, every 1000 ms stimulus level eithe...
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ftdoajarticles:oai:doaj.org/article:cc227fd3b62142ef9a9fed008c318fef 2023-05-15T15:41:46+02:00 Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. Vladimir V Popov Dmitry I Nechaev Alexander Ya Supin Evgeniya V Sysueva 2018-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0201121 https://doaj.org/article/cc227fd3b62142ef9a9fed008c318fef EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC6062073?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0201121 https://doaj.org/article/cc227fd3b62142ef9a9fed008c318fef PLoS ONE, Vol 13, Iss 7, p e0201121 (2018) Medicine R Science Q article 2018 ftdoajarticles https://doi.org/10.1371/journal.pone.0201121 2022-12-31T15:57:04Z The effects of prolonged sound stimuli (tone pip trains) on evoked potentials (the rate following response, RFR) were investigated in a beluga whale. The stimuli (rhythmic tone pips) were of 64 kHz frequency at levels from 80 to 140 dB re 1 μPa. During stimulation, every 1000 ms stimulus level either was kept constant (the steady-state stimulation) or changed up/down by 20 or 40 dB. With such stimulus presentation manner, RFR amplitude varied as follows. (i) After a stimulus level increase, the response amplitude increased quickly and then decayed slowly. The more the level increased, the higher the response amplitude increased. (ii) After a stimulus level decrease, the response amplitude was suppressed and then recovered slowly. The more the level decreased, the stronger was the response suppression. (iii) At the end of the 1000 ms window, the response amplitude approached, but did not reach, the amplitude characteristic of the steady-state stimulation. As a result, both after a sound level increase and decrease, the responses were almost stabilized during an analysis time as short as 1 s. This stabilization is attributed to an adaptation process. RFR decay after initial increase could be approximated by an exponent with a time constant of 59.4 ±1.8 (standard error) ms; RFR recovery after initial decrease could be approximated by an exponent with a time constant of 139.2 ±9.9 ms. Article in Journal/Newspaper Beluga Beluga whale Beluga* Delphinapterus leucas Directory of Open Access Journals: DOAJ Articles PLOS ONE 13 7 e0201121 |
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Directory of Open Access Journals: DOAJ Articles |
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language |
English |
topic |
Medicine R Science Q |
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Medicine R Science Q Vladimir V Popov Dmitry I Nechaev Alexander Ya Supin Evgeniya V Sysueva Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. |
topic_facet |
Medicine R Science Q |
description |
The effects of prolonged sound stimuli (tone pip trains) on evoked potentials (the rate following response, RFR) were investigated in a beluga whale. The stimuli (rhythmic tone pips) were of 64 kHz frequency at levels from 80 to 140 dB re 1 μPa. During stimulation, every 1000 ms stimulus level either was kept constant (the steady-state stimulation) or changed up/down by 20 or 40 dB. With such stimulus presentation manner, RFR amplitude varied as follows. (i) After a stimulus level increase, the response amplitude increased quickly and then decayed slowly. The more the level increased, the higher the response amplitude increased. (ii) After a stimulus level decrease, the response amplitude was suppressed and then recovered slowly. The more the level decreased, the stronger was the response suppression. (iii) At the end of the 1000 ms window, the response amplitude approached, but did not reach, the amplitude characteristic of the steady-state stimulation. As a result, both after a sound level increase and decrease, the responses were almost stabilized during an analysis time as short as 1 s. This stabilization is attributed to an adaptation process. RFR decay after initial increase could be approximated by an exponent with a time constant of 59.4 ±1.8 (standard error) ms; RFR recovery after initial decrease could be approximated by an exponent with a time constant of 139.2 ±9.9 ms. |
format |
Article in Journal/Newspaper |
author |
Vladimir V Popov Dmitry I Nechaev Alexander Ya Supin Evgeniya V Sysueva |
author_facet |
Vladimir V Popov Dmitry I Nechaev Alexander Ya Supin Evgeniya V Sysueva |
author_sort |
Vladimir V Popov |
title |
Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. |
title_short |
Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. |
title_full |
Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. |
title_fullStr |
Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. |
title_full_unstemmed |
Adaptation processes in the auditory system of a beluga whale Delphinapterus leucas. |
title_sort |
adaptation processes in the auditory system of a beluga whale delphinapterus leucas. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2018 |
url |
https://doi.org/10.1371/journal.pone.0201121 https://doaj.org/article/cc227fd3b62142ef9a9fed008c318fef |
genre |
Beluga Beluga whale Beluga* Delphinapterus leucas |
genre_facet |
Beluga Beluga whale Beluga* Delphinapterus leucas |
op_source |
PLoS ONE, Vol 13, Iss 7, p e0201121 (2018) |
op_relation |
http://europepmc.org/articles/PMC6062073?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0201121 https://doaj.org/article/cc227fd3b62142ef9a9fed008c318fef |
op_doi |
https://doi.org/10.1371/journal.pone.0201121 |
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PLOS ONE |
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13 |
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7 |
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e0201121 |
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