The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study
Rumination is a trait that includes two subcomponents, namely brooding and reflective pondering, respectively construed as maladaptive and adaptive response styles to negative experiences. Existing evidence indicates that rumination in general is associated with structural and functional differences...
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Frontiers Media S.A.
2018-08-01
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author | Emily L. L. Sin Emily L. L. Sin R. Shao R. Shao Xiujuan Geng Xiujuan Geng Valda Cho Tatia M. C. Lee Tatia M. C. Lee Tatia M. C. Lee |
author_facet | Emily L. L. Sin Emily L. L. Sin R. Shao R. Shao Xiujuan Geng Xiujuan Geng Valda Cho Tatia M. C. Lee Tatia M. C. Lee Tatia M. C. Lee |
author_sort | Emily L. L. Sin |
collection | DOAJ |
description | Rumination is a trait that includes two subcomponents, namely brooding and reflective pondering, respectively construed as maladaptive and adaptive response styles to negative experiences. Existing evidence indicates that rumination in general is associated with structural and functional differences in the anterior cingulate cortex (ACC) and the dorsal lateral prefrontal cortex (DLPFC). However, conclusive evidence on the specific neural structural basis of each of the two subcomponents is lacking. In this voxel-based morphometry study, we investigated the independent and specific neural structural basis of brooding and reflective pondering in 30 healthy young adults, who belonged to high or low brooding or reflective pondering groups. Consistent with past research, modest but significant positive correlation was found between brooding and reflective pondering. When controlling for reflective pondering, high-brooding group showed increased gray matter volumes in the left DLPFC and ACC. Further analysis on extracted gray matter values showed that gray matter of the same DLPFC and ACC regions also showed significant negative effects of reflective pondering. Taken together, our findings indicate that the two subcomponents of rumination might share some common processes yet also have distinct neural basis. In view of the significant roles of the left DLPFC and ACC in attention and self-related emotional processing/regulation, our findings provide insight into how the potentially shared and distinct cognitive, affective and neural processes of brooding and reflective pondering can be extended to clinical populations to further elucidate the neurobehavioral relationships between rumination and prefrontal abnormality. |
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spelling | doaj.art-d576d7632ce74d779bb4c850a4cdfc142022-12-22T00:49:46ZengFrontiers Media S.A.Frontiers in Human Neuroscience1662-51612018-08-011210.3389/fnhum.2018.00324395957The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM StudyEmily L. L. Sin0Emily L. L. Sin1R. Shao2R. Shao3Xiujuan Geng4Xiujuan Geng5Valda Cho6Tatia M. C. Lee7Tatia M. C. Lee8Tatia M. C. Lee9State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Pokfulam, Hong KongLaboratory of Neuropsychology, The University of Hong Kong, Pokfulam, Hong KongState Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Pokfulam, Hong KongLaboratory of Neuropsychology, The University of Hong Kong, Pokfulam, Hong KongState Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Pokfulam, Hong KongLaboratory of Neuropsychology, The University of Hong Kong, Pokfulam, Hong KongLaboratory of Neuropsychology, The University of Hong Kong, Pokfulam, Hong KongState Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Pokfulam, Hong KongLaboratory of Neuropsychology, The University of Hong Kong, Pokfulam, Hong KongInstitute of Clinical Neuropsychology, The University of Hong Kong, Pokfulam, Hong KongRumination is a trait that includes two subcomponents, namely brooding and reflective pondering, respectively construed as maladaptive and adaptive response styles to negative experiences. Existing evidence indicates that rumination in general is associated with structural and functional differences in the anterior cingulate cortex (ACC) and the dorsal lateral prefrontal cortex (DLPFC). However, conclusive evidence on the specific neural structural basis of each of the two subcomponents is lacking. In this voxel-based morphometry study, we investigated the independent and specific neural structural basis of brooding and reflective pondering in 30 healthy young adults, who belonged to high or low brooding or reflective pondering groups. Consistent with past research, modest but significant positive correlation was found between brooding and reflective pondering. When controlling for reflective pondering, high-brooding group showed increased gray matter volumes in the left DLPFC and ACC. Further analysis on extracted gray matter values showed that gray matter of the same DLPFC and ACC regions also showed significant negative effects of reflective pondering. Taken together, our findings indicate that the two subcomponents of rumination might share some common processes yet also have distinct neural basis. In view of the significant roles of the left DLPFC and ACC in attention and self-related emotional processing/regulation, our findings provide insight into how the potentially shared and distinct cognitive, affective and neural processes of brooding and reflective pondering can be extended to clinical populations to further elucidate the neurobehavioral relationships between rumination and prefrontal abnormality.https://www.frontiersin.org/article/10.3389/fnhum.2018.00324/fullvoxel-based morphometryMRIruminationbroodingreflective pondering |
spellingShingle | Emily L. L. Sin Emily L. L. Sin R. Shao R. Shao Xiujuan Geng Xiujuan Geng Valda Cho Tatia M. C. Lee Tatia M. C. Lee Tatia M. C. Lee The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study Frontiers in Human Neuroscience voxel-based morphometry MRI rumination brooding reflective pondering |
title | The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study |
title_full | The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study |
title_fullStr | The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study |
title_full_unstemmed | The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study |
title_short | The Neuroanatomical Basis of Two Subcomponents of Rumination: A VBM Study |
title_sort | neuroanatomical basis of two subcomponents of rumination a vbm study |
topic | voxel-based morphometry MRI rumination brooding reflective pondering |
url | https://www.frontiersin.org/article/10.3389/fnhum.2018.00324/full |
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