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Skandalakis GP, Linn W, Yeh F, Kazim SF, Komaitis S, Neromyliotis E, Dimopoulos D, Drosos E, Hadjipanayis CG, Kongkham PN, Zadeh G, Stranjalis G, Koutsarnakis C, Kogan M, Evans LT, Kalyvas A. Unveiling the axonal connectivity between the precuneus and temporal pole: Structural evidence from the cingulum pathways. Hum Brain Mapp 2024; 45:e26771. [PMID: 38925589 PMCID: PMC11199201 DOI: 10.1002/hbm.26771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 04/17/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
Neuroimaging studies have consistently demonstrated concurrent activation of the human precuneus and temporal pole (TP), both during resting-state conditions and various higher-order cognitive functions. However, the precise underlying structural connectivity between these brain regions remains uncertain despite significant advancements in neuroscience research. In this study, we investigated the connectivity of the precuneus and TP by employing parcellation-based fiber micro-dissections in human brains and fiber tractography techniques in a sample of 1065 human subjects and a sample of 41 rhesus macaques. Our results demonstrate the connectivity between the posterior precuneus area POS2 and the areas 35, 36, and TG of the TP via the fifth subcomponent of the cingulum (CB-V) also known as parahippocampal cingulum. This finding contributes to our understanding of the connections within the posteromedial cortices, facilitating a more comprehensive integration of anatomy and function in both normal and pathological brain processes. PRACTITIONER POINTS: Our investigation delves into the intricate architecture and connectivity patterns of subregions within the precuneus and temporal pole, filling a crucial gap in our knowledge. We revealed a direct axonal connection between the posterior precuneus (POS2) and specific areas (35, 35, and TG) of the temporal pole. The direct connections are part of the CB-V pathway and exhibit a significant association with the cingulum, SRF, forceps major, and ILF. Population-based human tractography and rhesus macaque fiber tractography showed consistent results that support micro-dissection outcomes.
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Affiliation(s)
- Georgios P. Skandalakis
- Section of NeurosurgeryDartmouth Hitchcock Medical CenterLebanonNew HampshireUSA
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | - Wen‐Jieh Linn
- Department of Neurological SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Fang‐Cheng Yeh
- Department of Neurological SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Syed Faraz Kazim
- Department of NeurosurgeryUniversity of New Mexico HospitalAlbuquerqueNew MexicoUSA
| | - Spyridon Komaitis
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | - Eleftherios Neromyliotis
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | - Dimitrios Dimopoulos
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | - Evangelos Drosos
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | | | - Paul N. Kongkham
- Department of NeurosurgeryToronto Western Hospital, University Health NetworkTorontoOntarioCanada
| | - Gelareh Zadeh
- Department of NeurosurgeryToronto Western Hospital, University Health NetworkTorontoOntarioCanada
| | - George Stranjalis
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | - Christos Koutsarnakis
- Department of NeurosurgeryNational and Kapodistrian University of Athens School of MedicineAthensGreece
| | - Michael Kogan
- Department of NeurosurgeryUniversity of New Mexico HospitalAlbuquerqueNew MexicoUSA
| | - Linton T. Evans
- Section of NeurosurgeryDartmouth Hitchcock Medical CenterLebanonNew HampshireUSA
| | - Aristotelis Kalyvas
- Department of NeurosurgeryToronto Western Hospital, University Health NetworkTorontoOntarioCanada
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Rafi H, Murray R, Delavari F, Perroud N, Vuilleumier P, Debbané M, Piguet C. Neural Basis of Internal Attention in Adults with Pure and Comorbid ADHD. J Atten Disord 2023; 27:423-436. [PMID: 36635890 DOI: 10.1177/10870547221147546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To examine whether putatively atypical neuronal activity during internal attention in ADHD yields insights into processes underlying emotion dysregulation. METHODS We used a word processing paradigm to assess neural activations in adults with ADHD (N = 46) compared to controls (N = 43). We measured effects of valence, applied partial-least squares correlation analysis to assess multivariate brainbehavior relationships and ran subgroup analyses to isolate results driven by pure ADHD (N = 18). RESULTS During internal attention, ADHD, compared to controls, have (1) increased activation in the right angular gyrus (rAG), which appears driven by pure, not comorbid, ADHD and (2) diminished activation in the insula and fronto-striatal circuitry. Diminished activations were driven by negatively-valenced internal attention and negatively correlated with increased affective lability within the ADHD group. CONCLUSION Internal attention in ADHD is associated with increased rAG activation, possibly reflecting difficulty converging external and internal information, and diminished activation within emotion regulation circuitry.
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Affiliation(s)
| | - Ryan Murray
- University of Geneva, Switzerland
- University of Geneva, Campus Biotech, Switzerland
| | - Farnaz Delavari
- University of Geneva, Switzerland
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Switzerland
| | | | | | - Martin Debbané
- University of Geneva, Switzerland
- University College London, UK
| | - Camille Piguet
- University of Geneva, Switzerland
- University Hospitals of Geneva, Switzerland
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Luis EO, Akrivou K, Bermejo-Martins E, Scalzo G, Orón JV. The Interprocessual-Self Theory in Support of Human Neuroscience Studies. Front Psychol 2022; 12:686928. [PMID: 35153881 PMCID: PMC8832125 DOI: 10.3389/fpsyg.2021.686928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 12/20/2021] [Indexed: 11/16/2022] Open
Abstract
Rather than occurring abstractly (autonomously), ethical growth occurs in interpersonal relationships (IRs). It requires optimally functioning cognitive processes [attention, working memory (WM), episodic/autobiographical memory (AM), inhibition, flexibility, among others], emotional processes (physical contact, motivation, and empathy), processes surrounding ethical, intimacy, and identity issues, and other psychological processes (self-knowledge, integration, and the capacity for agency). Without intending to be reductionist, we believe that these aspects are essential for optimally engaging in IRs and for the personal constitution. While they are all integrated into our daily life, in research and academic work, it is hard to see how they are integrated. Thus, we need better theoretical frameworks for studying them. That study and integration thereof are undertaken differently depending on different views of what it means to live as a human being. We rely on neuroscientific data to support the chosen theory to offer knowledge to understand human beings and interpersonal relational growth. We should of course note that to describe what makes up the uniqueness of being, acting, and growing as a human person involves something much more profound which requires too, a methodology that opens the way for a theory of the person that responds to the concerns of philosophy and philosophical anthropology from many disciplines and methods (Orón Semper, 2015; Polo, 2015), but this is outside the scope of this study. With these in mind, this article aims to introduce a new explanatory framework, called the Interprocessual-self (IPS), for the neuroscientific findings that allow for a holistic consideration of the previously mentioned processes. Contributing to the knowledge of personal growth and avoiding a reductionist view, we first offer a general description of the research that supports the interrelation between personal virtue in IRs and relevant cognitive, emotional, and ethic-moral processes. This reveals how relationships allow people to relate ethically and grow as persons. We include conceptualizations and descriptions of their neural bases. Secondly, with the IPS model, we explore neuroscientific findings regarding self-knowledge, integration, and agency, all psychological processes that stimulate inner exploration of the self concerning the other. We find that these fundamental conditions can be understood from IPS theory. Finally, we explore situations that involve the integration of two levels, namely the interpersonal one and the social contexts of relationships.
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Affiliation(s)
- Elkin O. Luis
- Psychological Processes in Education and Health Group, School of Education and Psychology, University of Navarra, Pamplona, Spain
- Navarra Institute for Health Research, Pamplona, Spain
| | - Kleio Akrivou
- Henley Business School, University of Reading, Reading, United Kingdom
| | - Elena Bermejo-Martins
- Navarra Institute for Health Research, Pamplona, Spain
- Department of Community Nursing and Midwifery, School of Nursing, University of Navarra, Pamplona, Spain
| | - Germán Scalzo
- School of Business, Universidad Panamericana, Mexico City, Mexico
| | - José Víctor Orón
- Fundación UpToYou Educación, Zaragoza, Spain
- *Correspondence: José Víctor Orón,
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Wade-Bohleber LM, Boeker H, Grimm S, Gärtner M, Ernst J, Recher DA, Buergi N, Seifritz E, Richter A. Depression is associated with hyperconnectivity of an introspective socio-affective network during the recall of formative relationship episodes. J Affect Disord 2020; 274:522-534. [PMID: 32663985 DOI: 10.1016/j.jad.2020.05.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 04/27/2020] [Accepted: 05/16/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND Depression and the experience of early adversity are associated with impairments in interpersonal and social cognitive functioning. The neural mechanisms involved in these impairments remain insufficiently understood. METHODS In a sample of 48 depressed and 50 healthy participants, we explored seed-to-voxel functional connectivity (FC) during the recall of formative relationship episodes using functional magnetic resonance imaging. RESULTS While depressive symptoms were associated with increased FC of brain regions that form an introspective socio-affective network, such as the precuneus, bilateral anterior insula, dorsal anterior cingulate cortex, left amygdala, and medial prefrontal cortex, early adversity linked to decreased FC of brain regions mediating emotion processing such as the bilateral anterior insula and increased FC of the bilateral parahippocampal gyrus. LIMITATIONS We report both results that are corrected for the number of seeds tested in FC analyses using strict Bonferroni adjustments and unadjusted results as part of an exploratory analysis. DISCUSSION Our findings suggest that depression and early adversity are associated with differential FC patterns in the brain during the recall of formative relationship episodes. Hyperconnectivity of an introspective socio-affective network associated with depressive symptoms may link to enhanced self-focus and emotional reactivity. Patterns of neural activation associated with early adversity may underpin numbed affective states or enhanced affective memory regulation. Overall, these findings inform about the neural underpinnings of a reflective ability that is predictive of the adaptation to depression and to early adversity and relevant for psychotherapy outcomes.
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Affiliation(s)
- L M Wade-Bohleber
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland; School of Applied Psychology, Zurich University of Applied Sciences, Zurich, Switzerland
| | - H Boeker
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland
| | - S Grimm
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland; Medical School Berlin, Berlin, Germany; Department of Psychiatry, Charité, Campus Benjamin Franklin, Berlin, Germany
| | - M Gärtner
- Medical School Berlin, Berlin, Germany; Department of Psychiatry, Charité, Campus Benjamin Franklin, Berlin, Germany
| | - J Ernst
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland
| | - D A Recher
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland
| | - N Buergi
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland
| | - E Seifritz
- Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Switzerland
| | - A Richter
- Department of Consultation-Liaison-Psychiatry and Psychosomatic Medicine, University Hospital Zurich, University of Zurich, Switzerland
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Hegarty BD, Marceau EM, Gusset M, Grenyer BFS. Early treatment response in psychotherapy for depression and personality disorder: links with core conflictual relationship themes. Psychother Res 2019; 30:112-123. [PMID: 31018824 DOI: 10.1080/10503307.2019.1609114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Objective: Depressed personality disorder patients showing an early rapid response (or sudden gain) in psychotherapy have better outcomes. Early responders are five times more likely to recover, despite equivalent ratings of working alliance. We explored core conflictual relationship themes (CCRTs) of early responders compared to others to further elucidate process-outcome links. Method: Patients (N = 20) with diagnosed major depression and personality disorder received 16 weeks of psychodynamic therapy. Early response was defined as a 50% reduction in Beck Depression Inventory symptoms during the first six sessions. Transcripts of therapy session three for early responders (n = 10) and others (n = 10) were analyzed using the CCRT Leipzig/Ulm method, identifying 728 components scored by two independent judges. Results: Relationship narratives showed CCRT-wish satisfaction was lower for those not having an early response, for both CCRT "Response of Other" and "Response of Self" components. These patients told narratives of others as more unreliable, aggressive, and less supportive, with less feelings of being loved and a lower experience of being self-determined. Conclusions: Specific negative relationship patterns may inhibit the ability to benefit from both therapy and extra-therapy relationships, contributing to a slower treatment response.
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Affiliation(s)
- Bronwyn D Hegarty
- School of Psychology and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong NSW, Australia
| | - Ely M Marceau
- School of Psychology and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong NSW, Australia
| | - Monique Gusset
- School of Psychology and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong NSW, Australia
| | - Brin F S Grenyer
- School of Psychology and Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong NSW, Australia
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Dobbin A, Ross S. How Memory Structures Influence Distress and Recovery. Front Psychiatry 2019; 10:500. [PMID: 31427994 PMCID: PMC6687758 DOI: 10.3389/fpsyt.2019.00500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/24/2019] [Indexed: 11/13/2022] Open
Abstract
The treatment of emotional distress has stalled. There has been no improvement in depression outcomes for 30 years, and recent opinions have highlighted the lack of clear validity for the mechanisms involved in current models of complex psychological interventions. Emotional distress is a phenomenon that underpins a swathe of apparently diverse mental health conditions. Childhood trauma has been found to be endemic and common in those with poor psychological adjustment in adults. Executive processes cause a split between knowledge of an event and knowledge of its negative ongoing emotional effects so making integration of the memory of such events and resolution of its effects is a challenge. Recent research into the relationship between well-being and memory structures has converged with research into episodic memories and their key role in goal programming, giving an opportunity to describe a new model with plausible mechanisms for emotional distress, regulation, resilience, and recovery. Humans seek goals that fulfil their universal basic psychological need for self-determination, and the structures of memory networks drive behavioral algorithms that can satisfy or thwart that goal. We propose that a single underlying deficit in memory networks could underpin the psychopathology of emotional distress and that a new formulation of distress and recovery could drive a useful update on the mechanisms of psychological interventions with greater validity and utility for recovery and propose the NEMESIS (Negative MEmorieS Integration Systems) model.
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Affiliation(s)
- Alastair Dobbin
- College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Sheila Ross
- Foundation for Positive Mental Health, Edinburgh, United Kingdom
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