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Gallucci J, Secara MT, Chen O, Oliver LD, Jones BDM, Marawi T, Foussias G, Voineskos AN, Hawco C. A systematic review of structural and functional magnetic resonance imaging studies on the neurobiology of depressive symptoms in schizophrenia spectrum disorders. SCHIZOPHRENIA (HEIDELBERG, GERMANY) 2024; 10:59. [PMID: 38961144 PMCID: PMC11222445 DOI: 10.1038/s41537-024-00478-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/10/2024] [Indexed: 07/05/2024]
Abstract
Depressive symptoms in Schizophrenia Spectrum Disorders (SSDs) negatively impact suicidality, prognosis, and quality of life. Despite this, efficacious treatments are limited, largely because the neural mechanisms underlying depressive symptoms in SSDs remain poorly understood. We conducted a systematic review to provide an overview of studies that investigated the neural correlates of depressive symptoms in SSDs using neuroimaging techniques. We searched MEDLINE, PsycINFO, EMBASE, Web of Science, and Cochrane Library databases from inception through June 19, 2023. Specifically, we focused on structural and functional magnetic resonance imaging (MRI), encompassing: (1) T1-weighted imaging measuring brain morphology; (2) diffusion-weighted imaging assessing white matter integrity; or (3) T2*-weighted imaging measures of brain function. Our search yielded 33 articles; 14 structural MRI studies, 18 functional (f)MRI studies, and 1 multimodal fMRI/MRI study. Reviewed studies indicate potential commonalities in the neurobiology of depressive symptoms between SSDs and major depressive disorders, particularly in subcortical and frontal brain regions, though confidence in this interpretation is limited. The review underscores a notable knowledge gap in our understanding of the neurobiology of depression in SSDs, marked by inconsistent approaches and few studies examining imaging metrics of depressive symptoms. Inconsistencies across studies' findings emphasize the necessity for more direct and comprehensive research focusing on the neurobiology of depression in SSDs. Future studies should go beyond "total score" depression metrics and adopt more nuanced assessment approaches considering distinct subdomains. This could reveal unique neurobiological profiles and inform investigations of targeted treatments for depression in SSDs.
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Affiliation(s)
- Julia Gallucci
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Maria T Secara
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Oliver Chen
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Lindsay D Oliver
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Brett D M Jones
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Tulip Marawi
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - George Foussias
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Aristotle N Voineskos
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Colin Hawco
- Campbell Family Mental Health Research Institute, Toronto, ON, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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Hoptman MJ, Evans KT, Parincu Z, Sparpana AM, Sullivan EF, Ahmed AO, Iosifescu DV. Emotion-related impulsivity and suicidal ideation and behavior in schizophrenia spectrum disorder: a pilot fMRI study. Front Psychiatry 2024; 15:1408083. [PMID: 38988737 PMCID: PMC11234166 DOI: 10.3389/fpsyt.2024.1408083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/11/2024] [Indexed: 07/12/2024] Open
Abstract
Introduction Suicidal ideation and behavior (SIB) are serious problems in people with schizophrenia spectrum disorders (SSD). Nevertheless, relatively little is known about the circuitry underlying SIB in SSD. Recently, we showed that elevated emotional impulsivity (urgency) was associated with SIB in SSD. Here we examined brain activity in people with SSD and elevated SIB. Methods We tested 16 people with SSD who had low SIB and 14 people with high SIB on a task in which emotion regulation in response to affective pictures was implicitly manipulated using spoken sentences. Thus, there were neutral pictures preceded by neutral statements (NeutNeut condition), as well as negative pictures preceded by either negative (NegNeg) or neutral (NeutNeg) statements. After each picture, participants rated how unpleasant each picture was for them. The latter two conditions were compared to the NeutNeut condition. We compared the emotion-regulated condition (NeutNeg) to the unregulated condition (NeutNeut). Statistics were threshold using threshold free cluster enhancement (TFCE). Results People in the low SIB group showed higher activation in this contrast in medial frontal gyrus, right rostral anterior cingulate, bilateral superior frontal gyrus/DLPFC, and right middle cingulate gyrus, as well as right superior temporal gyrus. Discussion This study provides clues to the neural basis of SIB in SSD as well as underlying mechanisms.
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Affiliation(s)
- Matthew J Hoptman
- Division of Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
- Department of Psychiatry, NYU Grossman School of Medicine, New York, NY, United States
| | - Kathryn T Evans
- Division of Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
- Department of Psychiatry, NYU Grossman School of Medicine, New York, NY, United States
| | - Zamfira Parincu
- Division of Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
| | - Allison M Sparpana
- Division of Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
- Department of Psychiatry, NYU Grossman School of Medicine, New York, NY, United States
| | - Elizabeth F Sullivan
- Division of Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
- Department of Psychiatry, NYU Grossman School of Medicine, New York, NY, United States
| | - Anthony O Ahmed
- Department of Psychiatry, Weill Cornell Medicine, White Plains, NY, United States
| | - Dan V Iosifescu
- Division of Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
- Department of Psychiatry, NYU Grossman School of Medicine, New York, NY, United States
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Namaky N, Swearingen HR, Winter J, Bozzay M, Primack JM, Philip NS, Barredo J. Suicidal thoughts and behaviours among military veterans: protocol for a prospective, observational, neuroimaging study. BMJ Open 2023; 13:e070654. [PMID: 37586858 PMCID: PMC10432662 DOI: 10.1136/bmjopen-2022-070654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/01/2023] [Indexed: 08/18/2023] Open
Abstract
INTRODUCTION This study's overarching goal is to examine the relationship between brain circuits and suicidal thoughts and behaviours (STBs) in a transdiagnostic sample of US military veterans. Because STBs have been linked with maladaptive decision-making and disorders linked to impulsivity, this investigation focuses on valence and inhibitory control circuits. METHODS AND ANALYSIS In this prospective, observational study, we will collect functional MRI (fMRI), cognitive and clinical data from 136 veterans (target sample size) recruited from the Providence VA Health System (PVAHS): 68 with STBs and 68 matched controls. Behavioural data will be collected using standardised measures of STBs, psychiatric symptoms, cognition, functioning and medical history. Neuroimaging data will include structural, task and resting fMRI. We will conduct follow-up interviews and assessments at 6, 12 and 24 months post-enrolment. Primary analyses will compare data from veterans with and without STBs and will also evaluate whether activation and connectivity within circuits of valence and inhibition covary with historical and prospective patterns of suicidal ideation and behaviour. ETHICS AND DISSEMINATION The PVAHS Institutional Review Board approved this study (2018-051). Written informed consent will be obtained from all participants. Findings from this study will be published in peer-reviewed journals and presented at local, regional, national and international conferences.Nauder Namaky, Ph.D.* nauder_namaky@brown.edu.
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Affiliation(s)
- Nauder Namaky
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
- VA RR&D Center for Neurorestoration and Neurotechnology, Providence, Rhode Island, USA
| | - Hannah R Swearingen
- VA RR&D Center for Neurorestoration and Neurotechnology, Providence, Rhode Island, USA
| | - Jake Winter
- VA RR&D Center for Neurorestoration and Neurotechnology, Providence, Rhode Island, USA
| | - Melanie Bozzay
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
- Psychiatry and Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Jennifer M Primack
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
- VA Long Term Services and Support Center of Innovation, Providence, Rhode Island, USA
| | - Noah S Philip
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
- VA RR&D Center for Neurorestoration and Neurotechnology, Providence, Rhode Island, USA
| | - Jennifer Barredo
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
- VA RR&D Center for Neurorestoration and Neurotechnology, Providence, Rhode Island, USA
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Masharipov R, Korotkov A, Knyazeva I, Cherednichenko D, Kireev M. Impaired Non-Selective Response Inhibition in Obsessive-Compulsive Disorder. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1171. [PMID: 36673927 PMCID: PMC9859350 DOI: 10.3390/ijerph20021171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/17/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Two prominent features of obsessive-compulsive disorder (OCD) are the inability to inhibit intrusive thoughts and behaviors and pathological doubt or intolerance of uncertainty. Previous study showed that uncertain context modeled by equiprobable presentation of excitatory (Go) and inhibitory (NoGo) stimuli requires non-selective response inhibition in healthy subjects. In other words, it requires transient global inhibition triggered not only by excitatory stimuli but also by inhibitory stimuli. Meanwhile, it is unknown whether OCD patients show abnormal brain activity of the non-selective response inhibition system. In order to test this assumption, we performed an fMRI study with an equiprobable Go/NoGo task involving fourteen patients with OCD and compared them with 34 healthy controls. Patients with OCD showed pathological slowness in the Go/NoGo task. The non-selective response inhibition system in OCD included all brain areas seen in healthy controls and, in addition, involved the right anterior cingulate cortex (ACC) and the anterior insula/frontal operculum (AIFO). Moreover, a between-group comparison revealed hypoactivation of brain regions within cingulo-opercular and cortico-striato-thalamo-cortical (CSTC) circuits in OCD. Among hypoactivated areas, the right ACC and the right dorsolateral prefrontal cortex (DLPFC) were associated with non-selective inhibition. Furthermore, regression analysis showed that OCD slowness was associated with decreased activation in cingulate regions and two brain areas related to non-selective inhibition: the right DLPFC and the right inferior parietal lobule (IPL). These results suggest that non-selective response inhibition is impaired in OCD, which could be a potential explanation for a relationship between inhibitory deficits and the other remarkable characteristic of OCD known as intolerance of uncertainty.
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Affiliation(s)
- Ruslan Masharipov
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Sciences, Academika Pavlova Street 9, Saint Petersburg 197376, Russia
| | - Alexander Korotkov
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Sciences, Academika Pavlova Street 9, Saint Petersburg 197376, Russia
| | - Irina Knyazeva
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Sciences, Academika Pavlova Street 9, Saint Petersburg 197376, Russia
| | - Denis Cherednichenko
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Sciences, Academika Pavlova Street 9, Saint Petersburg 197376, Russia
| | - Maxim Kireev
- N.P. Bechtereva Institute of the Human Brain, Russian Academy of Sciences, Academika Pavlova Street 9, Saint Petersburg 197376, Russia
- Institute for Cognitive Studies, Saint Petersburg State University, Saint Petersburg 197376, Russia
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Drzał E, Banaszek A, Stanicki P, Wingralek Z. Self-mutilation in people with psychiatric diagnosis - literature review. CURRENT PROBLEMS OF PSYCHIATRY 2023. [DOI: 10.12923/2353-8627/2023-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Introduction: Self-mutilation is of an auto-aggressive nature. They take many forms. Usually they do not occur as an isolated phenomenon. Self-injuring persons often have a diagnosed mental disorder, and a psychiatric diagnosis is one of the risk factors for the occurrence of self-harm.
Material and method: In this study, articles were analyzed that contained information on the occurrence of various mental disorders. These articles searched for information on the occurrence of self-mutilation, its type, origin and causes.
Discussion: Self-mutilation is common in patients with a psychiatric diagnosis. The frequency of such behaviors can range from 33% to 50% in people with autism, up to 22%, and even 49% in people diagnosed with psychotic disorders. Acts of selfharm may affect 50-78% of people diagnosed with border-line personality disorder. In adolescents with eating disorders, 41% of patients report self-harm. In the group of people diagnosed with bipolar disorder, it may be as high as 77.3%. People with depression are also a large self-injuring group. It is reported that it may be up to 71.2% of patients with unipolar disorder.
Conclusions: Self-mutilation is a phenomenon that is more and more topical and common not only in the adolescent population. This is a multi-factorial issue. One of the risk factors are mental disorders. Self-mutineers choose various methods, and this choice depends, among others, on from recognition. The size of the phenomenon and its evolution make it necessary to study it in order to increase the level of knowledge, update information and, consequently, the ability to help people at risk of NSSI.
Keywords: self-mutilation, autism spectrum disorder, schizophrenia, bipolar disorder, personality disorders
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Affiliation(s)
- Ewelina Drzał
- I Department of Psychiatry, Psychotherapy, and Early Intervention, Medical University of Lublin, Poland
| | - Agnieszka Banaszek
- Student Research Group at the I Department of Psychiatry, Psychotherapy, and Early Intervention, Medical University of Lublin, Poland
| | - Paweł Stanicki
- Student Research Group at the I Department of Psychiatry, Psychotherapy, and Early Intervention, Medical University of Lublin, Poland
| | - Zuzanna Wingralek
- Student Research Group at the I Department of Psychiatry, Psychotherapy, and Early Intervention, Medical University of Lublin, Poland
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Evidence for non-selective response inhibition in uncertain contexts revealed by combined meta-analysis and Bayesian analysis of fMRI data. Sci Rep 2022; 12:10137. [PMID: 35710930 PMCID: PMC9203582 DOI: 10.1038/s41598-022-14221-x] [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: 10/11/2021] [Accepted: 06/02/2022] [Indexed: 11/24/2022] Open
Abstract
Response inhibition is typically considered a brain mechanism selectively triggered by particular “inhibitory” stimuli or events. Based on recent research, an alternative non-selective mechanism was proposed by several authors. Presumably, the inhibitory brain activity may be triggered not only by the presentation of “inhibitory” stimuli but also by any imperative stimuli, including Go stimuli, when the context is uncertain. Earlier support for this notion was mainly based on the absence of a significant difference between neural activity evoked by equiprobable Go and NoGo stimuli. Equiprobable Go/NoGo design with a simple response time task limits potential confounds between response inhibition and accompanying cognitive processes while not preventing prepotent automaticity. However, previous neuroimaging studies used classical null hypothesis significance testing, making it impossible to accept the null hypothesis. Therefore, the current research aimed to provide evidence for the practical equivalence of neuronal activity in the Go and NoGo trials using Bayesian analysis of functional magnetic resonance imaging (fMRI) data. Thirty-four healthy participants performed a cued Go/NoGo task with an equiprobable presentation of Go and NoGo stimuli. To independently localize brain areas associated with response inhibition in similar experimental conditions, we performed a meta-analysis of fMRI studies using equal-probability Go/NoGo tasks. As a result, we observed overlap between response inhibition areas and areas that demonstrate the practical equivalence of neuronal activity located in the right dorsolateral prefrontal cortex, parietal cortex, premotor cortex, and left inferior frontal gyrus. Thus, obtained results favour the existence of non-selective response inhibition, which can act in settings of contextual uncertainty induced by the equal probability of Go and NoGo stimuli.
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Athanassiou M, Dumais A, Iammatteo V, De Benedictis L, Dubreucq JL, Potvin S. The processing of angry faces in schizophrenia patients with a history of suicide: An fMRI study examining brain activity and connectivity. Prog Neuropsychopharmacol Biol Psychiatry 2021; 107:110253. [PMID: 33485961 DOI: 10.1016/j.pnpbp.2021.110253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/05/2021] [Accepted: 01/14/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND The high rate of suicidal behaviours (SBs) in psychiatric populations remain an important preoccupation to address. The literature reveals emotional instability as an important risk factor for SBs. However, the neural mechanisms underpinning this risk factor have never been investigated in schizophrenia patients with SBs. The following study implemented a task-based emotional processing functional magnetic resonance imaging (fMRI) paradigm to evaluate the activation and connectivity differences exhibited by schizophrenia patients with a history of suicide attempt (SA). METHOD A sample of 62 schizophrenia patients with and without SA and 22 controls completed an fMRI emotional processing task, which included the visualization of dynamic angry facial expressions. Task-based connectivity was assessed using generalized psychophysical interaction analyses. RESULTS During the processing of angry faces, suicidal schizophrenia patients displayed increased activation of the left median cingulate gyrus, left middle frontal gyrus, and left precuneus when compared to nonsuicidal schizophrenia patients and healthy controls. Whole-brain connectivity analyses yielded an increased coupling of the right amygdala and right superior frontal gyrus, as well as between the left precuneus and median cingulate gyrus, in suicidal schizophrenia patients. Schizophrenia patients' hostility scores on the Positive and Negative Symptom Scale (PANSS) were significantly and positively correlated with the activity of the left median cingulate gyrus. CONCLUSION When exposed to angry faces, suicidal schizophrenia patients demonstrate elevated activation of brain regions associated to executive functioning and self-processing, as well as aberrant fronto-limbic connectivity involved in emotion regulation. Our results highlight the neglected role of anger when investigating the neural alterations underpinning SBs in schizophrenia.
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Affiliation(s)
- Maria Athanassiou
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Alexandre Dumais
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Canada; Philippe-Pinel National Institute of Legal Psychiatry, Montreal, Canada
| | - Veronica Iammatteo
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Luigi De Benedictis
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Canada
| | - Jean-Luc Dubreucq
- Philippe-Pinel National Institute of Legal Psychiatry, Montreal, Canada
| | - Stéphane Potvin
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal, Montreal, Canada; Department of Psychiatry and Addiction, Faculty of Medicine, University of Montreal, Montreal, Canada.
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Prefrontal dysfunction associated with a history of suicide attempts among patients with recent onset schizophrenia. NPJ SCHIZOPHRENIA 2020; 6:29. [PMID: 33127917 PMCID: PMC7599216 DOI: 10.1038/s41537-020-00118-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 09/04/2020] [Indexed: 11/08/2022]
Abstract
Suicide is a major cause of death in patients with schizophrenia, particularly among those with recent disease onset. Although brain imaging studies have identified the neuroanatomical correlates of suicidal behavior, functional brain activity correlates particularly in patients with recent-onset schizophrenia (ROSZ) remain unknown. Using near-infrared spectroscopy (NIRS) recording with a high-density coverage of the prefrontal area, we investigated whether prefrontal activity is altered in patients with ROSZ having a history of suicide attempts. A 52-channel NIRS system was used to examine hemodynamic changes in patients with ROSZ that had a history of suicide attempts (n = 24) or that lacked such a history (n = 62), and age- and sex-matched healthy controls (n = 119), during a block-design letter fluency task (LFT). Patients with a history of suicide attempts exhibited decreased activation in the right dorsolateral prefrontal cortex compared with those without such a history. Our findings indicate that specific regions of the prefrontal cortex may be associated with suicidal attempts, which may have implications for early intervention for psychosis.
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Brain grey matter abnormalities in first episode non-affective psychosis patients with suicidal behaviours: The role of neurocognitive functioning. Prog Neuropsychopharmacol Biol Psychiatry 2020; 102:109948. [PMID: 32305356 DOI: 10.1016/j.pnpbp.2020.109948] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 04/10/2020] [Accepted: 04/15/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND Suicide is one of the leading causes of premature death in first-episode psychosis (FEP) patients. The understanding of suicidal behaviour (SB) is limited, and new and integrative approaches focusing on the likely relationship of the biological and cognitive features of SB in the early phases of psychosis are warranted. We aimed to study the relationship of brain grey matter anomalies and cognitive functioning with SB or suicidal risk in a large sample of non-affective FEP patients. METHODS We used a voxel-based morphometry analysis in 145 FEP patients to investigate the pattern of structural brain abnormalities related to SB. In addition, bivariate and multivariate analyses were performed to explore the relationship between cognitive functioning and SB. RESULTS A reduction in grey matter volume in the frontal area, temporal gyrus, precuneus, uncus, amygdala, left cuneus and subcallosal gyrus as well as a marked regional volume reduction in the right hemisphere was linked with the presence of SB. Additionally, worse global cognitive functioning and living in urban areas were identified as suicide risk factors. CONCLUSIONS This study provides some insights about the brain abnormalities associated with SB in FEP patients. Specifically, the areas reported are involved in important functions related to SB, such as impulsivity, problem solving or responses to pain. Thus, the results confirm the relevant role of cognitive functioning on SB.
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Schmaal L, van Harmelen AL, Chatzi V, Lippard ETC, Toenders YJ, Averill LA, Mazure CM, Blumberg HP. Imaging suicidal thoughts and behaviors: a comprehensive review of 2 decades of neuroimaging studies. Mol Psychiatry 2020; 25:408-427. [PMID: 31787757 PMCID: PMC6974434 DOI: 10.1038/s41380-019-0587-x] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 10/21/2019] [Accepted: 10/29/2019] [Indexed: 01/06/2023]
Abstract
Identifying brain alterations that contribute to suicidal thoughts and behaviors (STBs) are important to develop more targeted and effective strategies to prevent suicide. In the last decade, and especially in the last 5 years, there has been exponential growth in the number of neuroimaging studies reporting structural and functional brain circuitry correlates of STBs. Within this narrative review, we conducted a comprehensive review of neuroimaging studies of STBs published to date and summarize the progress achieved on elucidating neurobiological substrates of STBs, with a focus on converging findings across studies. We review neuroimaging evidence across differing mental disorders for structural, functional, and molecular alterations in association with STBs, which converges particularly in regions of brain systems that subserve emotion and impulse regulation including the ventral prefrontal cortex (VPFC) and dorsal PFC (DPFC), insula and their mesial temporal, striatal and posterior connection sites, as well as in the connections between these brain areas. The reviewed literature suggests that impairments in medial and lateral VPFC regions and their connections may be important in the excessive negative and blunted positive internal states that can stimulate suicidal ideation, and that impairments in a DPFC and inferior frontal gyrus (IFG) system may be important in suicide attempt behaviors. A combination of VPFC and DPFC system disturbances may lead to very high risk circumstances in which suicidal ideation is converted to lethal actions via decreased top-down inhibition of behavior and/or maladaptive, inflexible decision-making and planning. The dorsal anterior cingulate cortex and insula may play important roles in switching between these VPFC and DPFC systems, which may contribute to the transition from suicide thoughts to behaviors. Future neuroimaging research of larger sample sizes, including global efforts, longitudinal designs, and careful consideration of developmental stages, and sex and gender, will facilitate more effectively targeted preventions and interventions to reduce loss of life to suicide.
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Affiliation(s)
- Lianne Schmaal
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | | | - Vasiliki Chatzi
- Department of Psychiatry, University of Cambridge, Cambridge, UK
| | | | - Yara J Toenders
- Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Lynnette A Averill
- Psychiatry, Yale School of Medicine, New Haven, CT, USA
- Department of Veterans Affairs National Center for PTSD, Clinical Neurosciences Division, West Haven, CT, USA
| | - Carolyn M Mazure
- Psychiatry and Women's Health Research at Yale, Yale School of Medicine, New Haven, CT, USA
| | - Hilary P Blumberg
- Psychiatry, Radiology and Biomedical Imaging, Child Study Center, Yale School of Medicine, New Haven, CT, USA.
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Bani-Fatemi A, Tasmim S, Graff-Guerrero A, Gerretsen P, Strauss J, Kolla N, Spalletta G, De Luca V. Structural and functional alterations of the suicidal brain: An updated review of neuroimaging studies. Psychiatry Res Neuroimaging 2018; 278:77-91. [PMID: 29929763 DOI: 10.1016/j.pscychresns.2018.05.008] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 05/10/2018] [Accepted: 05/15/2018] [Indexed: 12/21/2022]
Abstract
Brain imaging is a non-invasive and in vivo direct estimation of detailed brain structure, regional brain functioning and estimation of molecular processes in the brain. The main objective of this review was to analyze functional and structural neuroimaging studies of individuals at risk for suicide. We reviewed articles published between 2005 and 2018, indexed in PubMed and Medline, assessing structural and functional alterations of the brain of individuals at high risk for suicide and at low risk for suicide. We reviewed functional and structural neuroimaging studies which included individuals with a history of suicidal ideation or attempt in major depressive disorder (MDD), bipolar disorder (BD), psychosis, and borderline personality disorder (BPD). We selected 45 papers that focused on suicidality in MDD, 17 papers on BD, 11 papers on psychosis, and 5 papers on BPD. The suicidal brain across psychiatric diagnoses seems to heavily involve dysfunction of the fronto-temporal network, primarily involving reductions of gray and white matter volumes in the pre-frontal cortex (PFC), anterior cingulate, and superior temporal gyrus. Nonetheless, there are several ways to define suicidal behaviour and ideation. Therefore, it still remains difficult to combine the evidence from imaging studies that used different definitions of suicidality.
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Affiliation(s)
- Ali Bani-Fatemi
- Group for Suicide Studies, Centre for Addiction and Mental Health, 250 College Street, Toronto, ON M5T 1R8, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Samia Tasmim
- Group for Suicide Studies, Centre for Addiction and Mental Health, 250 College Street, Toronto, ON M5T 1R8, Canada; Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Ariel Graff-Guerrero
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Campbell Family Mental Health Research Institute; Multimodal Imaging Group at the Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Philip Gerretsen
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Campbell Family Mental Health Research Institute; Multimodal Imaging Group at the Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - John Strauss
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Medical Informatics; Child, Youth and Family Program at the Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | - Nathan Kolla
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Campbell Family Mental Health Research Institute
| | - Gianfranco Spalletta
- IRCCS Santa Lucia Foundation, Rome, Italy; Menninger Department of psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA
| | - Vincenzo De Luca
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada; Centre for Addiction and Mental Health, Department of Psychiatry, University of Toronto, 250 College St, Toronto, ON M5T 1R8, Canada.
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12
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Long Y, Ouyang X, Liu Z, Chen X, Hu X, Lee E, Chen EYH, Pu W, Shan B, Rohrbaugh RM. Associations Among Suicidal Ideation, White Matter Integrity and Cognitive Deficit in First-Episode Schizophrenia. Front Psychiatry 2018; 9:391. [PMID: 30210372 PMCID: PMC6121174 DOI: 10.3389/fpsyt.2018.00391] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 08/03/2018] [Indexed: 11/26/2022] Open
Abstract
Objective: The study was aimed to investigate the possible associations among suicidal ideation, brain white matter (WM) integrity and cognitive deficit in first-episode schizophrenia (FES) using diffusion tensor imaging. Methods: The sample contained 18 FES patients with suicidal ideation (SI+), 45 FES patients without suicidal ideation (SI-) and 44 healthy controls. The Calgary Depression Scale for Schizophrenia was used to measure the suicidal ideation and depression symptoms. The whole brain WM integrity and three domains of cognitive function: working memory, verbal comprehension as well as processing speed were compared between the three groups. Results: Compared with SI-, SI+ showed preserved WM integrity as indicated by significantly higher factional anisotropy (FA) or lower mean diffusivity (MD) in multiple WM tracts, and higher FA coupled with lower MD in bilateral posterior corona radiata. Compared with SI-, SI+ were more depressed and had less cognitive deficit in working memory and verbal comprehension. The fiber tracts in bilateral posterior corona radiata connect to the precuneus as shown by probabilistic tractography, and their WM integrity disruptions were found to be positively associated with the cognitive deficits in the FES patients. Discussion: Preserved WM integrity may be a risk factor for suicidal ideation in FES patients. One possible explanation is that it contributes to preserved cognitive function, especially in working memory and verbal comprehension, which may be associated with greater insight and could lead to increased depression and suicidal ideation. The posterior corona radiata and the precuneus may be linked to the related biological processes.
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Affiliation(s)
- Yicheng Long
- Department of Psychiatry, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xuan Ouyang
- Department of Psychiatry, Second Xiangya Hospital, Central South University, Changsha, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Chinese National Clinical Research Center on Mental Health Disorders, National Technology Institute of Psychiatry, Changsha, China
| | - Zhening Liu
- Department of Psychiatry, Second Xiangya Hospital, Central South University, Changsha, China.,Mental Health Institute, Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Chinese National Clinical Research Center on Mental Health Disorders, National Technology Institute of Psychiatry, Changsha, China
| | - Xudong Chen
- Department of Psychiatry, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xinran Hu
- Department of Psychiatry, Second Xiangya Hospital, Central South University, Changsha, China
| | - Edwin Lee
- Department of Psychiatry, University of Hong Kong, Hong Kong, Hong Kong
| | - Eric Y H Chen
- Department of Psychiatry, University of Hong Kong, Hong Kong, Hong Kong.,State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Hong Kong, Hong Kong
| | - Weidan Pu
- Medical Psychological Center, Second Xiangya Hospital, Central South University, Changsha, China
| | - Baoci Shan
- Key Laboratory of Nuclear Analysis, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Robert M Rohrbaugh
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
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13
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Alústiza I, Radua J, Pla M, Martin R, Ortuño F. Meta-analysis of functional magnetic resonance imaging studies of timing and cognitive control in schizophrenia and bipolar disorder: Evidence of a primary time deficit. Schizophr Res 2017; 188:21-32. [PMID: 28169089 DOI: 10.1016/j.schres.2017.01.039] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 01/22/2017] [Accepted: 01/24/2017] [Indexed: 01/11/2023]
Abstract
Schizophrenia (SZ) and Bipolar Disorder (BD) are associated with deficits in both timing and cognitive control functions. However, the underlying neurological dysfunctions remain poorly understood. The main goal of this study was to identify brain structures activated both by increases in cognitive activity and during timing tasks in patients with SZ and BD relative to controls. We conducted two signed differential mapping (SDM) meta-analyses of functional magnetic resonance imaging studies assessing the brain response to increasing levels of cognitive difficulty: one concerned SZ, and the other BD patients. We conducted a similar SDM meta-analysis on neuroimaging of timing in SZ (no studies in BD could be included). Finally, we carried out a multimodal meta-analysis to identify common brain regions in the findings of the two previous meta-analyses. We found that SZ patients showed hypoactivation in timing-related cortical-subcortical areas. The dysfunction observed during timing partially coincided with deficits for cognitive control functions. We hypothesize that a dysfunctional temporal/cognitive control network underlies the persistent cognitive impairment observed in SZ.
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Affiliation(s)
- Irene Alústiza
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Navarra, Spain; Instituto de Investigación Sanitaria de Navarra (IDISNA), Navarra, Spain.
| | - Joaquim Radua
- Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet, Sweden; FIDMAG Germanes Hospitalaries, Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Barcelona, Spain
| | - Marta Pla
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Navarra, Spain; Instituto de Investigación Sanitaria de Navarra (IDISNA), Navarra, Spain
| | - Raquel Martin
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Navarra, Spain; Instituto de Investigación Sanitaria de Navarra (IDISNA), Navarra, Spain
| | - Felipe Ortuño
- Department of Psychiatry and Clinical Psychology, Clínica Universidad de Navarra, Pamplona, Navarra, Spain; Instituto de Investigación Sanitaria de Navarra (IDISNA), Navarra, Spain
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14
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Pronounced prefronto-temporal cortical thinning in schizophrenia: Neuroanatomical correlate of suicidal behavior? Schizophr Res 2016; 176:151-157. [PMID: 27567290 DOI: 10.1016/j.schres.2016.08.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 08/10/2016] [Accepted: 08/10/2016] [Indexed: 11/21/2022]
Abstract
Schizophrenia is characterized by increased mortality for which suicidality is the decisive factor. An analysis of cortical thickness and folding to further elucidate neuroanatomical correlates of suicidality in schizophrenia has not yet been performed. We searched for relevant brain regions with such differences between patients with suicide-attempts, patients without any suicidal thoughts and healthy controls. 37 schizophrenia patients (14 suicide-attempters and 23 non-suicidal) and 50 age- and gender-matched healthy controls were included. Suicidality was documented through clinical interview and chart review. All participants underwent T1-weighted MRI scans. Whole brain node-by-node cortical thickness and folding were estimated (FreeSurfer Software) and compared. Additionally a three group comparison for prefrontal regions-of-interest was performed in SPSS using a multifactorial GLM. Compared with the healthy controls patients showed a typical pattern of cortical thinning in prefronto-temporal regions and altered cortical folding in the right medial temporal cortex. Patients with suicidal behavior compared with non-suicidal patients demonstrated pronounced (p<0.05) cortical thinning in the right DLPFC and the superior temporal cortex. Comparing cortical thickness in suicidal patients with non-suicidal patients significant (p<0.05) cortical thinning was additionally found in the right superior and middle temporal, temporopolar and insular cortex. Our findings extend the evidence for neuroanatomical underpinnings of suicidal behaviour in schizophrenia. We identified cortical thinning in a network strongly involved in regulation of impulsivity, emotions and planning of behaviour in suicide attempters, which might lead to neuronal dysregulation in this network and consequently to a higher risk of suicidal behavior.
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