Reduced spatiotemporal brain dynamics are associated with increased depressive symptoms after a relationship breakup

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Reduced spatiotemporal brain dynamics are associated with increased depressive symptoms after a relationship breakup. / Alonso Martínez, Sonsoles; Marsman, Jan Bernard C.; Kringelbach, Morten L.; Deco, Gustavo; ter Horst, Gert J.

In: NeuroImage: Clinical, Vol. 27, 102299, 2020.

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Alonso Martínez, Sonsoles ; Marsman, Jan Bernard C. ; Kringelbach, Morten L. ; Deco, Gustavo ; ter Horst, Gert J. / Reduced spatiotemporal brain dynamics are associated with increased depressive symptoms after a relationship breakup. In: NeuroImage: Clinical. 2020 ; Vol. 27.

Bibtex

@article{b2040691c5ec4002b1b2f6de318b8bfc,
title = "Reduced spatiotemporal brain dynamics are associated with increased depressive symptoms after a relationship breakup",
abstract = "Depressive symptoms following a stressful life event, such as a relationship breakup, are common, and constitute a potent risk factor for the onset of a major depressive episode. Resting-state neuroimaging studies have increasingly identified abnormal whole-brain communication in patients with depression, but it is currently unclear whether depressive symptoms in individuals without a clinical diagnosis have reliable neural underpinnings. We investigated to what extent the severity of depressive symptoms in a non-clinical sample was associated with imbalances in the complex dynamics of the brain during rest. To this end, a novel intrinsic ignition approach was applied to resting-state neuroimaging data from sixty-nine participants with varying degrees of depressive symptoms following a relationship breakup. Ignition-based measures of integration, hierarchy, and metastability were calculated for each participant, revealing a negative correlation between these measures and depressive ratings. We found that the severity of depressive symptoms was associated with deficits in the brain's capacity to globally integrate and process information over time. Furthermore, we found that increased depressive symptoms were associated with reduced spatial diversity (i.e., hierarchy) and reduced temporal variability (i.e., metastability) in the functional organization of the brain. These findings suggest the merit of investigating constrained dynamical complexity as it is sensitive to the level of depressive symptoms even in a non-clinical sample.",
keywords = "Depressive symptoms, Global integration, Non-clinical sample, Resting-state fMRI, Spatiotemporal dynamics, Whole-brain",
author = "{Alonso Mart{\'i}nez}, Sonsoles and Marsman, {Jan Bernard C.} and Kringelbach, {Morten L.} and Gustavo Deco and {ter Horst}, {Gert J.}",
year = "2020",
doi = "10.1016/j.nicl.2020.102299",
language = "English",
volume = "27",
journal = "NeuroImage: Clinical",
issn = "2213-1582",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Reduced spatiotemporal brain dynamics are associated with increased depressive symptoms after a relationship breakup

AU - Alonso Martínez, Sonsoles

AU - Marsman, Jan Bernard C.

AU - Kringelbach, Morten L.

AU - Deco, Gustavo

AU - ter Horst, Gert J.

PY - 2020

Y1 - 2020

N2 - Depressive symptoms following a stressful life event, such as a relationship breakup, are common, and constitute a potent risk factor for the onset of a major depressive episode. Resting-state neuroimaging studies have increasingly identified abnormal whole-brain communication in patients with depression, but it is currently unclear whether depressive symptoms in individuals without a clinical diagnosis have reliable neural underpinnings. We investigated to what extent the severity of depressive symptoms in a non-clinical sample was associated with imbalances in the complex dynamics of the brain during rest. To this end, a novel intrinsic ignition approach was applied to resting-state neuroimaging data from sixty-nine participants with varying degrees of depressive symptoms following a relationship breakup. Ignition-based measures of integration, hierarchy, and metastability were calculated for each participant, revealing a negative correlation between these measures and depressive ratings. We found that the severity of depressive symptoms was associated with deficits in the brain's capacity to globally integrate and process information over time. Furthermore, we found that increased depressive symptoms were associated with reduced spatial diversity (i.e., hierarchy) and reduced temporal variability (i.e., metastability) in the functional organization of the brain. These findings suggest the merit of investigating constrained dynamical complexity as it is sensitive to the level of depressive symptoms even in a non-clinical sample.

AB - Depressive symptoms following a stressful life event, such as a relationship breakup, are common, and constitute a potent risk factor for the onset of a major depressive episode. Resting-state neuroimaging studies have increasingly identified abnormal whole-brain communication in patients with depression, but it is currently unclear whether depressive symptoms in individuals without a clinical diagnosis have reliable neural underpinnings. We investigated to what extent the severity of depressive symptoms in a non-clinical sample was associated with imbalances in the complex dynamics of the brain during rest. To this end, a novel intrinsic ignition approach was applied to resting-state neuroimaging data from sixty-nine participants with varying degrees of depressive symptoms following a relationship breakup. Ignition-based measures of integration, hierarchy, and metastability were calculated for each participant, revealing a negative correlation between these measures and depressive ratings. We found that the severity of depressive symptoms was associated with deficits in the brain's capacity to globally integrate and process information over time. Furthermore, we found that increased depressive symptoms were associated with reduced spatial diversity (i.e., hierarchy) and reduced temporal variability (i.e., metastability) in the functional organization of the brain. These findings suggest the merit of investigating constrained dynamical complexity as it is sensitive to the level of depressive symptoms even in a non-clinical sample.

KW - Depressive symptoms

KW - Global integration

KW - Non-clinical sample

KW - Resting-state fMRI

KW - Spatiotemporal dynamics

KW - Whole-brain

UR - http://www.scopus.com/inward/record.url?scp=85085943421&partnerID=8YFLogxK

U2 - 10.1016/j.nicl.2020.102299

DO - 10.1016/j.nicl.2020.102299

M3 - Journal article

C2 - 32516738

AN - SCOPUS:85085943421

VL - 27

JO - NeuroImage: Clinical

JF - NeuroImage: Clinical

SN - 2213-1582

M1 - 102299

ER -