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Mean diffusivity associated with trait emotional intelligence.

ABSTRACT: Previous neuroimaging studies have suggested that the neural bases of trait emotional intelligence (TEI) lie in the social cognition network (SCN) and the somatic marker circuitry (SMC). The current study was the first to investigate the associations of total TEI factors and subfactors with mean diffusivity (MD) of these networks as well as regional MD of the dopaminergic system (MDDS). We found that TEI intrapersonal factor score and total TEI score were negatively correlated with regional MDDS in the vicinity of the right putamen and right pallidum and that TEI intrapersonal factor score was negatively correlated with MD values of the fusiform gyrus. Total TEI score and TEI factor scores were positively correlated with MD values of various areas within or adjacent to SCN components, SMC structures and the lateral prefrontal cortex (LPFC). Our MD findings demonstrated the importance of the dopaminergic system to TEI and implicate the SCN, SMC and LPFC in TEI. Future studies are required to investigate the implications of positive and negative associations with MD values.

SUBMITTER: Takeuchi H

PROVIDER: S-EPMC6847659 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Mean diffusivity associated with trait emotional intelligence.

Takeuchi Hikaru H Taki Yasuyuki Y Nouchi Rui R Yokoyama Ryoichi R Kotozaki Yuka Y Nakagawa Seishu S Sekiguchi Atsushi A Iizuka Kunio K Yamamoto Yuki Y Hanawa Sugiko S Araki Tsuyoshi T Miyauchi Carlos Makoto CM Sakaki Kohei K Sassa Yuko Y Nozawa Takayuki T Ikeda Shigeyuki S Yokota Susumu S Daniele Magistro M Kawashima Ryuta R

Social cognitive and affective neuroscience 20190801 8

Previous neuroimaging studies have suggested that the neural bases of trait emotional intelligence (TEI) lie in the social cognition network (SCN) and the somatic marker circuitry (SMC). The current study was the first to investigate the associations of total TEI factors and subfactors with mean diffusivity (MD) of these networks as well as regional MD of the dopaminergic system (MDDS). We found that TEI intrapersonal factor score and total TEI score were negatively correlated with regional MDDS ...[more]

PMID: 31593230

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Project description:Magnetic resonance imaging (MRI) has become an important tool in the early detection of age-related and neuropathological brain changes. Recent studies suggest that changes in mean diffusivity (MD) of cortical gray matter derived from diffusion MRI scans may be useful in detecting early effects of Alzheimer's disease (AD), and that these changes may be detected earlier than alterations associated with standard structural MRI measures such as cortical thickness. Thus, due to its potential clinical relevance, we examined the genetic and environmental influences on cortical MD in middle-aged men to provide support for the biological relevance of this measure and to guide future gene association studies. It is not clear whether individual differences in cortical MD reflect neuroanatomical variability similarly detected by other MRI measures, or whether unique features are captured. For instance, variability in cortical MD may reflect morphological variability more commonly measured by cortical thickness. Differences among individuals in cortical MD may also arise from breakdowns in myelinated fibers running through the cortical mantle. Thus, we investigated whether genetic influences on variation in cortical MD are the same or different from those influencing cortical thickness and MD of white matter (WM) subjacent to the cortical ribbon. Univariate twin analyses indicated that cortical MD is heritable in the majority of brain regions; the average of regional heritability estimates ranged from 0.38 in the cingulate cortex to 0.66 in the occipital cortex, consistent with the heritability of other MRI measures of the brain. Trivariate analyses found that, while there was some shared genetic variance between cortical MD and each of the other two measures, this overlap was not complete (i.e., the correlation was statistically different from 1). A significant amount of distinct genetic variance influences inter-individual variability in cortical MD; therefore, this measure could be useful for further investigation in studies of neurodegenerative diseases and gene association studies.

Project description:Past research regarding the emotional characteristics of kibbutz children raised with communal sleeping arrangements (CSA) showed inconsistent findings for emotional difficulties, such as insecure attachment and lowered ability for intimacy. Only little research has examined these children's emotional characteristics in their adulthood. Trait emotional intelligence (trait EI) is a new concept measuring a constellation of correlated emotional traits that capture a person's typical way of processing emotional information and reacting to it. The present study examined if difficulties in intimacy and trait EI characterize adults who had been raised in CSA kibbutzim (Hebrew plural of kibbutz). Participants comprised 1185 adults, aged 30-79, of whom 735 were raised in CSA kibbutzim, and the rest did not grow up in a Kibbutz at all. The participants completed three self-report questionnaires: Schutte's Self-Report Emotional Intelligence Test (SSEIT) to measure trait EI; the Revised Adult Attachment Scale to measure adult attachment; and the Rosenberg Self-Esteem Questionnaire to measure self-esteem. Results showed that most of the kibbutz CSA participants revealed levels of intimacy and trait EI comparable to the non-kibbutz group. However, a significant difference was found among adults with low self-esteem and poor attachment quality: For these participants, trait EI and intimacy were significantly lower for the CSA kibbutz group than for the non-kibbutz group. Furthermore, the CSA kibbutz group reported poorer non-verbal communication skills than the non-kibbutz group. We suggest that a minority of the CSA kibbutz children were less resilient to the kibbutz ecology. These children might have been more vulnerable to the effects of limited social options, decreased parental support, and the kibbutz education's ideological demands. For these children, the effects of communal upbringing on intimacy and attachment appear to be long-lasting, extending throughout their adulthood.

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Mean diffusivity associated with trait emotional intelligence.

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Mean diffusivity associated with trait emotional intelligence.

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