Cargando…

Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals

When a person plays a musical instrument, sound is produced and the integrated frequency and intensity produced are perceived aurally. The central nervous system (CNS) receives defective afferent signals from auditory systems and delivers imperfect efferent signals to the motor system due to the noi...

Descripción completa

Detalles Bibliográficos
Autores principales: Koh, Kyung, Kwon, Hyun Joon, Kiemel, Tim, Miller, Ross H., Park, Yang Sun, Kim, Min Joo, Kwon, Young Ha, Kim, Yoon Hyuk, Shim, Jae Kun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135783/
https://www.ncbi.nlm.nih.gov/pubmed/30209342
http://dx.doi.org/10.1038/s41598-018-31792-w
_version_ 1783354875348779008
author Koh, Kyung
Kwon, Hyun Joon
Kiemel, Tim
Miller, Ross H.
Park, Yang Sun
Kim, Min Joo
Kwon, Young Ha
Kim, Yoon Hyuk
Shim, Jae Kun
author_facet Koh, Kyung
Kwon, Hyun Joon
Kiemel, Tim
Miller, Ross H.
Park, Yang Sun
Kim, Min Joo
Kwon, Young Ha
Kim, Yoon Hyuk
Shim, Jae Kun
author_sort Koh, Kyung
collection PubMed
description When a person plays a musical instrument, sound is produced and the integrated frequency and intensity produced are perceived aurally. The central nervous system (CNS) receives defective afferent signals from auditory systems and delivers imperfect efferent signals to the motor system due to the noise in both systems. However, it is still little known about auditory-motor interactions for successful performance. Here, we investigated auditory-motor interactions as multi-sensory input and multi-motor output system. Subjects performed a constant force production task using four fingers in three different auditory feedback conditions, where either the frequency (F), intensity (I), or both frequency and intensity (FI) of an auditory tone changed with sum of finger forces. Four levels of uncertainty (high, moderate-high, moderate-low, and low) were conditioned by manipulating the feedback gain of the produced force. We observed performance enhancement under the FI condition compared to either F or I alone at moderate-high uncertainty. Interestingly, the performance enhancement was greater than the prediction of the Bayesian model, suggesting super-optimality. We also observed deteriorated synergistic multi-finger interactions as the level of uncertainty increased, suggesting that the CNS responded to increased uncertainty by changing control strategy of multi-finger actions.
format Online
Article
Text
id pubmed-6135783
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-61357832018-09-15 Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals Koh, Kyung Kwon, Hyun Joon Kiemel, Tim Miller, Ross H. Park, Yang Sun Kim, Min Joo Kwon, Young Ha Kim, Yoon Hyuk Shim, Jae Kun Sci Rep Article When a person plays a musical instrument, sound is produced and the integrated frequency and intensity produced are perceived aurally. The central nervous system (CNS) receives defective afferent signals from auditory systems and delivers imperfect efferent signals to the motor system due to the noise in both systems. However, it is still little known about auditory-motor interactions for successful performance. Here, we investigated auditory-motor interactions as multi-sensory input and multi-motor output system. Subjects performed a constant force production task using four fingers in three different auditory feedback conditions, where either the frequency (F), intensity (I), or both frequency and intensity (FI) of an auditory tone changed with sum of finger forces. Four levels of uncertainty (high, moderate-high, moderate-low, and low) were conditioned by manipulating the feedback gain of the produced force. We observed performance enhancement under the FI condition compared to either F or I alone at moderate-high uncertainty. Interestingly, the performance enhancement was greater than the prediction of the Bayesian model, suggesting super-optimality. We also observed deteriorated synergistic multi-finger interactions as the level of uncertainty increased, suggesting that the CNS responded to increased uncertainty by changing control strategy of multi-finger actions. Nature Publishing Group UK 2018-09-12 /pmc/articles/PMC6135783/ /pubmed/30209342 http://dx.doi.org/10.1038/s41598-018-31792-w Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Koh, Kyung
Kwon, Hyun Joon
Kiemel, Tim
Miller, Ross H.
Park, Yang Sun
Kim, Min Joo
Kwon, Young Ha
Kim, Yoon Hyuk
Shim, Jae Kun
Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals
title Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals
title_full Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals
title_fullStr Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals
title_full_unstemmed Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals
title_short Intra-auditory integration between pitch and loudness in humans: Evidence of super-optimal integration at moderate uncertainty in auditory signals
title_sort intra-auditory integration between pitch and loudness in humans: evidence of super-optimal integration at moderate uncertainty in auditory signals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135783/
https://www.ncbi.nlm.nih.gov/pubmed/30209342
http://dx.doi.org/10.1038/s41598-018-31792-w
work_keys_str_mv AT kohkyung intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT kwonhyunjoon intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT kiemeltim intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT millerrossh intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT parkyangsun intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT kimminjoo intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT kwonyoungha intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT kimyoonhyuk intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals
AT shimjaekun intraauditoryintegrationbetweenpitchandloudnessinhumansevidenceofsuperoptimalintegrationatmoderateuncertaintyinauditorysignals