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Neural responses to emotional stimuli across the dissociative spectrum: Common and specific mechanisms.

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Title: Neural responses to emotional stimuli across the dissociative spectrum: Common and specific mechanisms.
Authors: Cavicchioli, Marco (AUTHOR), Ogliari, Anna (AUTHOR), Maffei, Cesare (AUTHOR), Mucci, Clara (AUTHOR), Northoff, Georg (AUTHOR), Scalabrini, Andrea (AUTHOR)
Source: Psychiatry & Clinical Neurosciences. Jun2023, Vol. 77 Issue 6, p315-329. 15p. 4 Diagrams, 8 Charts.
Subjects: Emotional conditioning, Borderline personality disorder, Functional magnetic resonance imaging, Post-traumatic stress disorder, Dissociative disorders, Large-scale brain networks
Abstract: Aim: Departing from existing neurobiological models of dissociation, the current study aims at conducting a quantitative meta‐analytic review of neural responses to emotional stimuli among individuals ascribed to the dissociative spectrum (DS). Accordingly, the study explored common and specific brain mechanisms across borderline personality disorder, conversion/somatoform disorders, posttraumatic stress disorder, posttraumatic stress disorder related to repeated interpersonal traumatic experiences, and dissociative disorders. Methods: The meta‐analysis included studies that administered emotional stimuli during functional magnetic resonance imaging acquisition among individuals included in the DS. There were two conducted meta‐analytic procedures: (i) a Bayesian network meta‐analysis for a region‐of‐interest–based approach; and (ii) robust voxel‐based approach. Results: Forty‐four independent studies were included for a total of 1384 individuals (DS = 741 patients). The network meta‐analysis showed specific patterns of neural activity considering an extended brain network involved in emotion regulation for each condition ascribed to the DS. The voxel‐based meta‐analysis highlighted an increased activity of dorsal anterior cingulate cortex as a common neurological signature of the DS. Conclusion: The common neural feature of the DS captures an implicit appraisal of emotion‐eliciting stimuli as threatening and/or noxious for mental and physical integrity of the individual together with painful subjective experiences associated with physiological emotional reactions. Specific brain responses across the DS suggested the engagement in different mechanisms to address emotional stimuli, including implicit avoidance reactions and attempts to overcontrol of affective states together with a disruption of integrative processes of emotional mind–body features. [ABSTRACT FROM AUTHOR]
Copyright of Psychiatry & Clinical Neurosciences is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Neural responses to emotional stimuli across the dissociative spectrum: Common and specific mechanisms.
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  Data: <searchLink fieldCode="AR" term="%22Cavicchioli%2C+Marco%22">Cavicchioli, Marco</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ogliari%2C+Anna%22">Ogliari, Anna</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maffei%2C+Cesare%22">Maffei, Cesare</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mucci%2C+Clara%22">Mucci, Clara</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Northoff%2C+Georg%22">Northoff, Georg</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Scalabrini%2C+Andrea%22">Scalabrini, Andrea</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Psychiatry+%26+Clinical+Neurosciences%22">Psychiatry & Clinical Neurosciences</searchLink>. Jun2023, Vol. 77 Issue 6, p315-329. 15p. 4 Diagrams, 8 Charts.
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  Data: <searchLink fieldCode="DE" term="%22Emotional+conditioning%22">Emotional conditioning</searchLink><br /><searchLink fieldCode="DE" term="%22Borderline+personality+disorder%22">Borderline personality disorder</searchLink><br /><searchLink fieldCode="DE" term="%22Functional+magnetic+resonance+imaging%22">Functional magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Post-traumatic+stress+disorder%22">Post-traumatic stress disorder</searchLink><br /><searchLink fieldCode="DE" term="%22Dissociative+disorders%22">Dissociative disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Large-scale+brain+networks%22">Large-scale brain networks</searchLink>
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  Data: Aim: Departing from existing neurobiological models of dissociation, the current study aims at conducting a quantitative meta‐analytic review of neural responses to emotional stimuli among individuals ascribed to the dissociative spectrum (DS). Accordingly, the study explored common and specific brain mechanisms across borderline personality disorder, conversion/somatoform disorders, posttraumatic stress disorder, posttraumatic stress disorder related to repeated interpersonal traumatic experiences, and dissociative disorders. Methods: The meta‐analysis included studies that administered emotional stimuli during functional magnetic resonance imaging acquisition among individuals included in the DS. There were two conducted meta‐analytic procedures: (i) a Bayesian network meta‐analysis for a region‐of‐interest–based approach; and (ii) robust voxel‐based approach. Results: Forty‐four independent studies were included for a total of 1384 individuals (DS = 741 patients). The network meta‐analysis showed specific patterns of neural activity considering an extended brain network involved in emotion regulation for each condition ascribed to the DS. The voxel‐based meta‐analysis highlighted an increased activity of dorsal anterior cingulate cortex as a common neurological signature of the DS. Conclusion: The common neural feature of the DS captures an implicit appraisal of emotion‐eliciting stimuli as threatening and/or noxious for mental and physical integrity of the individual together with painful subjective experiences associated with physiological emotional reactions. Specific brain responses across the DS suggested the engagement in different mechanisms to address emotional stimuli, including implicit avoidance reactions and attempts to overcontrol of affective states together with a disruption of integrative processes of emotional mind–body features. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Psychiatry & Clinical Neurosciences is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Jun2023
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