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Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing
Thermoreception is an important cutaneous sense, which plays a role in the maintenance of our body temperature and in the detection of potential noxious heat stimulation. In this study, we investigated event‐related fields (ERFs) and neural oscillatory activities, which were modulated by warmth stim...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5947665/ https://www.ncbi.nlm.nih.gov/pubmed/29363226 http://dx.doi.org/10.1002/hbm.23977 |
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author | An, Kyung‐min Lim, Sanghyun Lee, Hyun Joon Kwon, Hyukchan Kim, Min‐Young Gohel, Bakul Kim, Ji‐Eun Kim, Kiwoong |
author_facet | An, Kyung‐min Lim, Sanghyun Lee, Hyun Joon Kwon, Hyukchan Kim, Min‐Young Gohel, Bakul Kim, Ji‐Eun Kim, Kiwoong |
author_sort | An, Kyung‐min |
collection | PubMed |
description | Thermoreception is an important cutaneous sense, which plays a role in the maintenance of our body temperature and in the detection of potential noxious heat stimulation. In this study, we investigated event‐related fields (ERFs) and neural oscillatory activities, which were modulated by warmth stimulation. We developed a warmth stimulator that could elicit a warmth sensation, without pain or tactile sensation, by using a deep‐penetrating 980‐nm diode laser. The index finger of each participant (n = 24) was irradiated with the laser warmth stimulus, and the cortical responses were measured using magnetoencephalography (MEG). The ERFs and oscillatory responses had late latencies (∼1.3 s and 1.0–1.5 s for ERFs and oscillatory responses, respectively), which could be explained by a slow conduction velocity of warmth‐specific C‐fibers. Cortical sources of warmth‐related ERFs were seen in the bilateral primary and secondary somatosensory cortices (SI and SII), posterior part of the anterior cingulate cortex (pACC), ipsilateral primary motor, and premotor cortex. Thus, we suggested that SI, SII, and pACC play a role in processing the warmth sensation. Time–frequency analysis demonstrated the suppression of the alpha (8–13 Hz) and beta (18–23 Hz) band power in the bilateral sensorimotor cortex. We proposed that the suppressions in alpha and beta band power are involved in the automatic response to the input of warmth stimulation and sensorimotor interactions. The delta band power (1–4 Hz) increased in the frontal, temporal, and cingulate cortices. The power changes in delta band might be related with the attentional processes during the warmth stimulation. |
format | Online Article Text |
id | pubmed-5947665 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-59476652018-05-17 Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing An, Kyung‐min Lim, Sanghyun Lee, Hyun Joon Kwon, Hyukchan Kim, Min‐Young Gohel, Bakul Kim, Ji‐Eun Kim, Kiwoong Hum Brain Mapp Research Articles Thermoreception is an important cutaneous sense, which plays a role in the maintenance of our body temperature and in the detection of potential noxious heat stimulation. In this study, we investigated event‐related fields (ERFs) and neural oscillatory activities, which were modulated by warmth stimulation. We developed a warmth stimulator that could elicit a warmth sensation, without pain or tactile sensation, by using a deep‐penetrating 980‐nm diode laser. The index finger of each participant (n = 24) was irradiated with the laser warmth stimulus, and the cortical responses were measured using magnetoencephalography (MEG). The ERFs and oscillatory responses had late latencies (∼1.3 s and 1.0–1.5 s for ERFs and oscillatory responses, respectively), which could be explained by a slow conduction velocity of warmth‐specific C‐fibers. Cortical sources of warmth‐related ERFs were seen in the bilateral primary and secondary somatosensory cortices (SI and SII), posterior part of the anterior cingulate cortex (pACC), ipsilateral primary motor, and premotor cortex. Thus, we suggested that SI, SII, and pACC play a role in processing the warmth sensation. Time–frequency analysis demonstrated the suppression of the alpha (8–13 Hz) and beta (18–23 Hz) band power in the bilateral sensorimotor cortex. We proposed that the suppressions in alpha and beta band power are involved in the automatic response to the input of warmth stimulation and sensorimotor interactions. The delta band power (1–4 Hz) increased in the frontal, temporal, and cingulate cortices. The power changes in delta band might be related with the attentional processes during the warmth stimulation. John Wiley and Sons Inc. 2018-01-23 /pmc/articles/PMC5947665/ /pubmed/29363226 http://dx.doi.org/10.1002/hbm.23977 Text en © 2018 The Authors Human Brain Mapping Published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles An, Kyung‐min Lim, Sanghyun Lee, Hyun Joon Kwon, Hyukchan Kim, Min‐Young Gohel, Bakul Kim, Ji‐Eun Kim, Kiwoong Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
title | Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
title_full | Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
title_fullStr | Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
title_full_unstemmed | Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
title_short | Magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
title_sort | magnetoencephalographic study of event‐related fields and cortical oscillatory changes during cutaneous warmth processing |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5947665/ https://www.ncbi.nlm.nih.gov/pubmed/29363226 http://dx.doi.org/10.1002/hbm.23977 |
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