Evidence map›Paper›PMID 30317636›Full record

ArticleJournal of personality2019

Intra-cortical myelin mediates personality differences.

Nicola Toschi, Luca Passamonti

Open access · hybridAbstract read
In one paragraph

Article in Journal of personality, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
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  4. Intracortical Myelin in Youths at Risk for Depression.Biological psychiatry global open science · 2024
    Article
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  7. Neurocircuitry of Personality Traits and Intent in Decision-Making.Behavioral sciences (Basel, Switzerland) · 2023
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 3 countries.

Nicola ToschiDepartment of Biomedicine & Prevention, University "Tor Vergata", Rome, Italy.
Luca PassamontiInstitute of Bioimaging & Molecular Physiology, National Research Council, Milano, Italy.ORCID 0000-0002-7937-0615
University of Cambridge · GBUniversity of Rome Tor Vergata · IT

Funding

Medical Research Council MR/P01271X/1
6 · The paper itself

Abstract

objectiveDifferences in myelination in the cortical mantle are important neurobiological mediators of variability in cognitive, emotional, and behavioral functioning. Past studies have found that personality traits reflecting such variability are linked to neuroanatomical and functional changes in prefrontal and temporo-parietal cortices. Whether these effects are partially mediated by the differences in intra-cortical myelin remains to be established.

methodTo test this hypothesis, we employed vertex-wise intra-cortical myelin maps in n = 1,003 people from the Human Connectome Project. Multivariate regression analyses were used to test for the relationship between intra-cortical myelin and each of the five-factor model's personality traits, while accounting for age, sex, intelligence quotient, total intracranial volume, and the remaining personality traits.

resultsNeuroticism negatively related to frontal-pole myelin and positively to occipital cortex myelin. Extraversion positively related to superior parietal myelin. Openness negatively related to anterior cingulate myelin, while Agreeableness positively related to orbitofrontal myelin. Conscientiousness positively related to frontal-pole myelin and negatively to myelin content in the dorsal anterior cingulate cortex.

conclusionsIntra-cortical myelin levels in brain regions with prolonged myelination are positively associated with personality traits linked to favorable outcome measures. These findings improve our understanding of the neurobiological underpinnings of variability in common behavioral dispositions.

Indexed as

AdultCerebral CortexExtraversion, PsychologicalFemaleHumansIndividualityMaleMyelin SheathNeuroticismPersonalityBig-Fiveindividual differencesmyelinmyelinationT1/T2-weighted ratio

Identifiers

PMID30317636
PMCPMC6767500
OpenAlexW2897142220

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.