Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept

This proof-of-concept study explores the potential of developing objective pain identification based on the analysis of electroencephalography (EEG) signals. Data were collected from participants living with chronic fibromyalgia pain (<i>n</i> = 4) and from healthy volunteers (<i>n...

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Main Authors: Colince Meli Segning, Jessica Harvey, Hassan Ezzaidi, Karen Barros Parron Fernandes, Rubens A. da Silva, Suzy Ngomo
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/16/6272
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author Colince Meli Segning
Jessica Harvey
Hassan Ezzaidi
Karen Barros Parron Fernandes
Rubens A. da Silva
Suzy Ngomo
author_facet Colince Meli Segning
Jessica Harvey
Hassan Ezzaidi
Karen Barros Parron Fernandes
Rubens A. da Silva
Suzy Ngomo
author_sort Colince Meli Segning
collection DOAJ
description This proof-of-concept study explores the potential of developing objective pain identification based on the analysis of electroencephalography (EEG) signals. Data were collected from participants living with chronic fibromyalgia pain (<i>n</i> = 4) and from healthy volunteers (<i>n</i> = 7) submitted to experimental pain by the application of capsaicin cream (1%) on the right upper trapezius. This data collection was conducted in two parts: (1) baseline measures including pain intensity and EEG signals, with the participant at rest; (2) active measures collected under the execution of a visuo-motor task, including EEG signals and the task performance index. The main measure for the objective identification of the presence of pain was the coefficient of variation of the upper envelope (CVUE) of the EEG signal from left fronto-central (FC5) and left temporal (T7) electrodes, in alpha (8–12 Hz), beta (12–30 Hz) and gamma (30–43 Hz) frequency bands. The task performance index was also calculated. CVUE (%) was compared between groups: those with chronic fibromyalgia pain, healthy volunteers with “No pain” and healthy volunteers with experimentally-induced pain. The identification of the presence of pain was determined by an increased CVUE in beta (CVUE<sub>β</sub>) from the EEG signals captured at the left FC5 electrode. More specifically, CVUE<sub>β</sub> increased up to 20% in the pain condition at rest. In addition, no correlation was found between CVUE<sub>β</sub> and pain intensity or the task performance index. These results support the objective identification of the presence of pain based on the quantification of the coefficient of variation of the upper envelope of the EEG signal.
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spelling doaj.art-73a3f1fbd79a4b21b4f94234e0a1a2802023-11-30T22:24:24ZengMDPI AGSensors1424-82202022-08-012216627210.3390/s22166272Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-ConceptColince Meli Segning0Jessica Harvey1Hassan Ezzaidi2Karen Barros Parron Fernandes3Rubens A. da Silva4Suzy Ngomo5Department of Applied Sciences, Université du Québec à Chicoutimi (UQAC), Saguenay, QC G7H 2B1, CanadaRemix Health Clinic, Chicoutimi, QC G7H 7K9, CanadaDepartment of Applied Sciences, Université du Québec à Chicoutimi (UQAC), Saguenay, QC G7H 2B1, CanadaDepartment of Health Sciences, Université du Québec à Chicoutimi (UQAC), Saguenay, QC G7H 2B1, CanadaLaboratoire de Recherche Biomécanique et Neurophysiologique en Réadaptation Neuro-Musculo-Squelettique (<i>Lab BioNR</i>), Université du Québec à Chicoutimi (UQAC), Saguenay, QC G7H 2B1, CanadaLaboratoire de Recherche Biomécanique et Neurophysiologique en Réadaptation Neuro-Musculo-Squelettique (<i>Lab BioNR</i>), Université du Québec à Chicoutimi (UQAC), Saguenay, QC G7H 2B1, CanadaThis proof-of-concept study explores the potential of developing objective pain identification based on the analysis of electroencephalography (EEG) signals. Data were collected from participants living with chronic fibromyalgia pain (<i>n</i> = 4) and from healthy volunteers (<i>n</i> = 7) submitted to experimental pain by the application of capsaicin cream (1%) on the right upper trapezius. This data collection was conducted in two parts: (1) baseline measures including pain intensity and EEG signals, with the participant at rest; (2) active measures collected under the execution of a visuo-motor task, including EEG signals and the task performance index. The main measure for the objective identification of the presence of pain was the coefficient of variation of the upper envelope (CVUE) of the EEG signal from left fronto-central (FC5) and left temporal (T7) electrodes, in alpha (8–12 Hz), beta (12–30 Hz) and gamma (30–43 Hz) frequency bands. The task performance index was also calculated. CVUE (%) was compared between groups: those with chronic fibromyalgia pain, healthy volunteers with “No pain” and healthy volunteers with experimentally-induced pain. The identification of the presence of pain was determined by an increased CVUE in beta (CVUE<sub>β</sub>) from the EEG signals captured at the left FC5 electrode. More specifically, CVUE<sub>β</sub> increased up to 20% in the pain condition at rest. In addition, no correlation was found between CVUE<sub>β</sub> and pain intensity or the task performance index. These results support the objective identification of the presence of pain based on the quantification of the coefficient of variation of the upper envelope of the EEG signal.https://www.mdpi.com/1424-8220/22/16/6272painEEG signalcoefficient of variation of the upper envelope (CVUE)beta EEG frequency band
spellingShingle Colince Meli Segning
Jessica Harvey
Hassan Ezzaidi
Karen Barros Parron Fernandes
Rubens A. da Silva
Suzy Ngomo
Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept
Sensors
pain
EEG signal
coefficient of variation of the upper envelope (CVUE)
beta EEG frequency band
title Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept
title_full Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept
title_fullStr Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept
title_full_unstemmed Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept
title_short Towards the Objective Identification of the Presence of Pain Based on Electroencephalography Signals’ Analysis: A Proof-of-Concept
title_sort towards the objective identification of the presence of pain based on electroencephalography signals analysis a proof of concept
topic pain
EEG signal
coefficient of variation of the upper envelope (CVUE)
beta EEG frequency band
url https://www.mdpi.com/1424-8220/22/16/6272
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