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June 9, 2019
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Emotion Regulation of Neuroticism: Emotional Information Processing Related to Psychosomatic State Evaluated by Electroencephalography and Exact Low-Resolution Brain Electromagnetic Tomography

Publicated to: NEUROPSYCHOBIOLOGY. 71 (1): 34-41 - 2015-03-24 71(1), DOI: 10.1159/000368119

Authors:

Ikeda, S; Mizuno-Matsumoto, Y; Canuet, L; Ishii, R; Aoki, Y; Hata, M; Katsimichas, T; Pascual-Marqui, RD; Hayashi, T; Okamoto, E; Asakawa, T; Iwase, M; Takeda, M
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Affiliations

Aino Univ, Dept Med Engn - Author
Osaka Univ, Grad Sch Med, Dept Psychiat, Suita - Author
Tech Univ Madrid - Author
Univ Hosp Psychiat, KEY Inst Brain Mind Res - Author
Univ Hyogo, Grad Sch Appl Informat, Kobe - Author
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Abstract

Emotion regulation is the process that adjusts the type or amount of emotion when we experience an emotional situation. The aim of this study was to reveal quantitative changes in brain activity during emotional information processing related to psychosomatic states and to determine electrophysiological features of neuroticism. Twenty-two healthy subjects (mean age 25 years, 14 males and 8 females) were registered. Electroencephalography (EEG) was measured during an emotional audiovisual memory task under three conditions (neutral, pleasant and unpleasant sessions). We divided the subjects into two groups using the Cornell Medical Index (CMI): (CMI-I: control group, n = 10: CMI-II, III or IV: neuroticism group, n = 12). We analyzed the digital EEG data using exact low-resolution brain electromagnetic tomography (eLORETA) current source density (CSD) and functional connectivity analysis in several frequency bands (delta, theta, alpha, beta, gamma and whole band). In all subjects, bilateral frontal a CSD in the unpleasant session increased compared to the pleasant session, especially in the control group (p < 0.05). CSD of the neuroticism group was significantly higher than that of the control group in the full band at the amygdala and inferior temporal gyrus, and in the a band at the right temporal lobe (p < 0.05). Additionally, we found an increase in functional connectivity between the left insular cortex and right superior temporal gyrus in all subjects during the unpleasant session compared to the pleasant session (p < 0.05). In this study, using EEG analysis, we could find a novel cortical net work related to brain mechanisms underlying emotion regulation. Overall findings indicate that it is possible to characterize neuroticism electrophysiologically, which may serve as a neurophysiological marker of this personality trait. (C) 2015 S. Karger AG, Basel
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Keywords

Alpha bandAttentionCognitive controlDepressionEeg alphaElectroencephalographyEmotionExact low-resolution brain electromagnetic tomographyFunctional connectivityModulationNeuroticismOscillationsReliabilitySchizophreniaSymptomsΑ band

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal NEUROPSYCHOBIOLOGY due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2015, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Psychiatry and Mental Health.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-24:

  • WoS: 21
  • Scopus: 26
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-24:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 66.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 66 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 1.
  • The number of mentions on the social network X (formerly Twitter): 1 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/41076/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 532
  • Downloads: 509
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Japan; Switzerland.

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Awards linked to the item

This research was partially supported by the Center of Innovation Program from the Japanese Science and Technology Agency.
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