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Zhang L, Ding Y, Li T, Li H, Liu F, Li P, Zhao J, Lv D, Lang B, Guo W. Similar imaging changes and their relations to genetic profiles in bipolar disorder across different clinical stages. Psychiatry Res 2024; 335:115868. [PMID: 38554494 DOI: 10.1016/j.psychres.2024.115868] [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] [Received: 01/04/2024] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 04/01/2024]
Abstract
Bipolar disorder (BD) across different clinical stages may present shared and distinct changes in brain activity. We aimed to reveal the neuroimaging homogeneity and heterogeneity of BD and its relationship with clinical variables and genetic variations. In present study, we conducted fractional amplitude of low-frequency fluctuations (fALFF), functional connectivity (FC) and genetic neuroimaging association analyses with 32 depressed, 26 manic, 35 euthymic BD patients and 87 healthy controls (HCs). Significant differences were found in the bilateral pre/subgenual anterior cingulate cortex (ACC) across the four groups, and all bipolar patients exhibited decreased fALFF values in the ACC when compared to HCs. Furthermore, positive associations were significantly observed between fALFF values in the pre/subgenual ACC and participants' cognitive functioning. No significant changes were found in ACC-based FC. We identified fALFF-alteration-related genes in BD, with enrichment in biological progress including synaptic and ion transmission. Taken together, abnormal activity in ACC is a characteristic change associated with BD, regardless of specific mood stages, serving as a potential neuroimaging feature in BD patients. Our genetic neuroimaging association analysis highlights possible heterogeneity in biological processes that could be responsible for different clinical stages in BD.
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Affiliation(s)
- Leyi Zhang
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Yudan Ding
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Tingting Li
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Huabing Li
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Feng Liu
- Department of Radiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Ping Li
- Department of Psychiatry, Qiqihar Medical University, Qiqihar, Heilongjiang 161006, China
| | - Jingping Zhao
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Dongsheng Lv
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China; Center of Mental Health, Inner Mongolia Autonomous Region, Hohhot 010010, China.
| | - Bing Lang
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Wenbin Guo
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, and National Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China.
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Herold M, Kovács GX, Herold R, Pótó Z, Fekete JD, Varga E, Hajnal A, Csulak T, Pethő B, Hebling D, Albert N, Tényi T. Patients with chronic bipolar disorder show impairments in interpreting literary fiction - A preliminary explorative study with the short story task. J Psychiatr Res 2024; 171:238-245. [PMID: 38316104 DOI: 10.1016/j.jpsychires.2024.01.022] [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] [Received: 06/12/2023] [Revised: 12/30/2023] [Accepted: 01/15/2024] [Indexed: 02/07/2024]
Abstract
INTRODUCTION Theory of mind (ToM) is a crucial skill in navigating and functioning in the social world. Significant ToM impairment was consistently found in bipolar disorder; it can be both a state and trait marker of the disorder. However, most of the ToM tests are not sensitive enough to detect subtle individual differences, which would be necessary for an individualized treatment plan. The Short Story Task (SST) is a new way to sensitively assess individual differences in ToM performance. The aim of the study was to test the feasibility of SST in patients with bipolar disorder. METHOD 31 persons (11 male, 20 female) with bipolar I disorder and 31 healthy individuals (15 males and 16 females) as a control group were recruited. SST was used to evaluate ToM performance. The SST uses a Hemingway novel, in which the patient is presented with a realistic social situation, where the motivations of the characters and the underlying relationships of events are not explicitly described. RESULTS In the explicit mental state reasoning questions the CG (M = 8.06) had significantly higher (p < 0.001) scores than the persons with bipolar I disorder (M = 5.03). There was no ceiling effect for explicit ToM scores in either group. Participants in CG (M = 8.03) also significantly outperformed (p = 0.006) the BG participants (M = 6.55) in the comprehension questions. The spontaneous mental state inference question was performed equally (M = 0.23) in both groups. Group assignment (t = -3.503, p < 0.001), comprehension score (t = 2.864, p = 0.006), and spontaneous mentalization (t = 2.846, p = 0.006) significantly predicted the explicit ToM performance. CONCLUSIONS Overall, we found that the Short Story Task is a promising tool for measuring ToM in patients with bipolar disorder without ceiling effect. Primarily explicit ToM was found to be deficient, which corresponds well with the ToM literature in bipolar disorder. Contrary to our hypothesis we could not detect impairment in spontaneous ToM and found that patients living with bipolar disorder also showed deficits in comprehension. The lack of assessment of neurocognitive skills is a significant limitation of the current study.
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Affiliation(s)
- Márton Herold
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary.
| | - Gyöngyvér X Kovács
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Róbert Herold
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Zsuzsanna Pótó
- Institute of Physiotherapy and Sport Sciences, Faculty of Health Sciences, University of Pécs, Hungary
| | - Judit Diána Fekete
- Department of Languages for Biomedical Purposes and Communication, Medical School, University of Pécs, Hungary
| | - Eszter Varga
- Department of Pediatrics, Medical School, University of Pécs, Hungary
| | - András Hajnal
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Tímea Csulak
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Borbála Pethő
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Dóra Hebling
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Noémi Albert
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
| | - Tamás Tényi
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Hungary
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Bershad AK, de Wit H. Social Psychopharmacology: Novel Approaches to Treat Deficits in Social Motivation in Schizophrenia. Schizophr Bull 2023; 49:1161-1173. [PMID: 37358825 PMCID: PMC10483474 DOI: 10.1093/schbul/sbad094] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
BACKGROUND AND HYPOTHESIS Diminished social motivation is a negative symptom of schizophrenia and leads to severe functional consequences for many patients suffering from the illness. However, there are no effective medications available to treat this symptom. Despite the lack of approved treatments for patients, there is a growing body of literature on the effects of several classes of drugs on social motivation in healthy volunteers that may be relevant to patients. The aim of this review is to synthesize these results in an effort to identify novel directions for the development of medications to treat reduced social motivation in schizophrenia. STUDY DESIGN In this article, we review pharmacologic challenge studies addressing the acute effects of psychoactive drugs on social motivation in healthy volunteers and consider how these findings may be applied to deficits in social motivation in schizophrenia. We include studies testing amphetamines and 3,4-methylenedioxymethamphetamine (MDMA), opioids, cannabis, serotonergic psychedelics, antidepressants, benzodiazepines, and neuropeptides. STUDY RESULTS We report that amphetamines, MDMA, and some opioid medications enhance social motivation in healthy adults and may represent promising avenues of investigation in schizophrenia. CONCLUSIONS Given the acute effects of these drugs on behavioral and performance-based measures of social motivation in healthy volunteers, they may be particularly beneficial as an adjunct to psychosocial training programs in patient populations. It remains to be determined how these medications affect patients with deficits in social motivation, and in which contexts they may be most effectively administered.
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Affiliation(s)
- Anya K Bershad
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles Semel Institute for Neuroscience and Human Behavior, Los Angeles, CAUSA
| | - Harriet de Wit
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, ILUSA
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Lampron M, Savard C, Bernier A, Payant M, Sabourin S, Achim AM. Contrasting social knowledge and theory of mind patterns in adults with personality disorders, schizophrenia spectrum disorders, and healthy controls. Cogn Neuropsychiatry 2023; 28:361-376. [PMID: 37733030 DOI: 10.1080/13546805.2023.2259021] [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] [Received: 11/17/2022] [Accepted: 09/07/2023] [Indexed: 09/22/2023]
Abstract
INTRODUCTION Personality disorders (PD) and schizophrenia spectrum disorders (SSD) are distinct conditions displaying common symptoms, like impairments in social cognition, that make them hard to distinguish, especially in severe cases. To date, few studies have compared theory of mind skills in these two disorders, and none have compared social knowledge skills. This study aims to compare the social cognitive abilities of patients with these conditions. METHOD Non-parametric analyses of covariance were used to compare severe PD patients (n = 37), SSD patients (n = 44), and healthy controls (HC; n = 49) on the Social Knowledge Test and two measures of theory of mind: the Reading the Mind in the Eyes Test and the Combined Stories Test, which incorporates items from various widely used tests. RESULTS While no significant group differences were found on the Social Knowledge Test, SSD patients performed lower than the HC group on both theory of mind tests. PD patients only had lower performance than the HC group on specific items from the Combined Stories Test. CONCLUSIONS PD and SSD patients demonstrated distinctive patterns of social cognitive impairments, with items of greater complexity or with an affective orientation being the most discriminant for PD.
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Affiliation(s)
| | - Claudia Savard
- CERVO Brain Research Centre, Québec, Canada
- Department of Educational Fundamentals and Practices, Université Laval, Québec, Canada
| | | | - Maude Payant
- Department of Psychology, Université du Québec à Montréal, Montréal, Canada
| | | | - Amélie M Achim
- CERVO Brain Research Centre, Québec, Canada
- Department of Psychiatry and neurosciences, Université Laval, Québec, Canada
- VITAM - Centre de recherche en santé durable, Québec, Canada
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Fekete J, Pótó Z, Varga E, Hebling D, Herold M, Albert N, Pethő B, Tényi T, Herold R. The effect of reading literary fiction on the theory of mind skills among persons with schizophrenia and normal controls. Front Psychiatry 2023; 14:1197677. [PMID: 37351004 PMCID: PMC10282181 DOI: 10.3389/fpsyt.2023.1197677] [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: 03/31/2023] [Accepted: 05/22/2023] [Indexed: 06/24/2023] Open
Abstract
Introduction Recent research data suggest that theory of mind (ToM) skills may improve after reading literary fiction. However, beside this short term favorable effect, regular long-term reading of literary fiction may also support ToM development or may improve ToM performance. The presence of impaired ToM abilities is well-documented in schizophrenia; however, the role of reading in these deficits is unknown. In the present study our aim was to assess the effect of prior reading experiences on theory of mind performance in patients with schizophrenia, and in healthy controls. Materials and methods ToM assessment was done with the Short Story Task, which is based on the interpretation of a Hemingway short story. After reading the short story, questions were asked in an interview format regarding comprehension, explicit and implicit ToM skills, then comparative analysis of schizophrenia patients was performed (n = 47) and matched to a normal control (n = 48) group concerning deficits of ToM abilities. Participants were also stratified according to their prior reading experiences. Results Previous reading experience was associated with better comprehension and explicit ToM performance both in patients with schizophrenia, and in healthy controls. However, the explicit ToM performance of patients with prior reading was still weaker compared to healthy controls with reading experiences. Path model analysis revealed that reading had a direct positive effect on ToM, and an indirect effect through improving comprehension. Conclusions Prior reading experience is associated with better ToM performance not just in healthy controls but also in patients living with schizophrenia. Previous reading experience also improves comprehension, which in turn has a favorable impact on ToM. Our results support the idea that literary fiction reading may have a therapeutic potential in the rehabilitation of schizophrenia.
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Affiliation(s)
- Judit Fekete
- Department of Languages for Biomedical Purposes and Communication, Medical School, University of Pécs, Pécs, Hungary
| | - Zsuzsanna Pótó
- Institute of Physiotherapy and Sport Science, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | - Eszter Varga
- Department of Pediatrics, Medical School, University of Pécs, Pécs, Hungary
| | - Dóra Hebling
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Márton Herold
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Noémi Albert
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Borbála Pethő
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Tamás Tényi
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Róbert Herold
- Department of Psychiatry and Psychotherapy, Medical School, University of Pécs, Pécs, Hungary
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Massalha Y, Maggioni E, Callari A, Brambilla P, Delvecchio G. A review of resting-state fMRI correlations with executive functions and social cognition in bipolar disorder. J Affect Disord 2023; 334:337-351. [PMID: 37003435 DOI: 10.1016/j.jad.2023.03.084] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 03/20/2023] [Accepted: 03/25/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND Deficits in executive functions (EF) and social cognition (SC) are often observed in bipolar disorder (BD), leading to a severe impairment in engaging a functional interaction with the others and the surrounding environment. Therefore, in recent years, resting-state functional magnetic resonance imaging (rs-fMRI) studies on BD tried to identify the neural underpinnings of these cognitive domains by exploring the association between the intrinsic functional connectivity (FC) and the scores in clinical scales evaluating these domains. METHODS A bibliographic search on PubMed and Scopus of studies evaluating the correlations between rs-fMRI findings and EF and/or SC in BD was conducted until March 2022. Ten studies met the inclusion criteria. RESULTS Overall, the results of the reviewed studies showed that BD patients had FC deficits compared to healthy controls (HC) in selective resting-state networks involved in EF and SC, which include the default mode network, especially the link between medial prefrontal cortex and posterior cingulate cortex, and the sensory-motor network. Finally, it also emerged the predominant role of alterations in prefrontal connections in explaining the cognitive deficits in BD patients. LIMITATIONS The heterogeneity of the reviewed studies, in terms of cognitive domains explored and neuroimaging acquisitions, limited the comparability of the findings. CONCLUSIONS rs-fMRI studies could help deepen the brain network alterations underlying EF and SC deficits in BD, pointing the attention on the neuronal underpinning of cognition, whose knowledge may lead to the development of new neurobiological-based approaches to improve the quality of life of these patients.
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Affiliation(s)
- Yara Massalha
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy
| | - Eleonora Maggioni
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, 20122 Milan, Italy
| | - Antonio Callari
- Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, 20122 Milan, Italy
| | - Paolo Brambilla
- Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy; Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, 20122 Milan, Italy
| | - Giuseppe Delvecchio
- Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico, Department of Neurosciences and Mental Health, 20122 Milan, Italy.
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Specific facial emotion recognition deficits across the course of psychosis: A comparison of individuals with low-risk, high-risk, first-episode psychosis and multi-episode schizophrenia-spectrum disorders. Psychiatry Res 2023; 320:115029. [PMID: 36586376 DOI: 10.1016/j.psychres.2022.115029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 12/17/2022] [Accepted: 12/24/2022] [Indexed: 12/26/2022]
Abstract
Our study aimed to explore the recognition of specific emotions across the course of psychosis. A visual task representing the six basic emotions was used to assess facial emotion recognition (FER) in 204 healthy controls classified into 152 low-risk (LR) and 52 high-risk for psychosis (HR), following a psychometric risk approach; and 100 patients: 44 with first-episode psychosis (FEP) and 56 with multi-episode schizophrenia-spectrum disorders (MES). First, we performed a MANCOVA to compare the four conditions. Next, we conducted a logistic regression to explore whether specific FER deficits predicted the presence of psychosis. Finally, we investigated the relationships of FER with psychosis-like experiences (PLEs) and psychotic symptoms. Global FER, anger and fear recognition were impaired in HR, FEP and MES. No differences between HR and FEP appeared. Moreover, fear and anger correctly classified 83% of individuals into LR or psychosis. FER was associated with PLEs and psychotic symptoms. Concluding, FER is early impaired in HR individuals and increases along the psychosis continuum. However, fear recognition is similarly impaired throughout the illness, suggesting a possible vulnerability marker. Furthermore, deficits in anger and fear recognition predicted the presence of psychosis. Therefore, we suggest that FER may be essential in detecting psychosis risk.
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Yamada Y, Okubo R, Tachimori H, Uchino T, Kubota R, Okano H, Ishikawa S, Horinouchi T, Takanobu K, Sawagashira R, Hasegawa Y, Sasaki Y, Nishiuchi M, Kawashima T, Tomo Y, Hashimoto N, Ikezawa S, Nemoto T, Watanabe N, Sumiyoshi T. Pharmacological interventions for social cognitive impairments in schizophrenia: A protocol for a systematic review and network meta-analysis. Front Psychol 2022; 13:878829. [PMID: 35992452 PMCID: PMC9381750 DOI: 10.3389/fpsyg.2022.878829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background Social cognitive impairments adversely affect social functioning (e.g., employment status) in patients with schizophrenia. Although pharmacological interventions have been suggested to provide some benefits on social cognition, little information is available on the comparative efficacy of pharmacotherapy. Thus, the aim of this planned systematic review and network meta-analysis is to perform a quantitative comparison of the effects of various psychotropic drugs, including supplements, on social cognition disturbances of schizophrenia. Methods The literature search will be carried out using the PubMed, Embase, Cochrane Central Register of Controlled Trials, PsycINFO, ClinicalTrials.gov, and International Clinical Trials Registry Platform databases from inception onward. Randomized controlled trials that examined the efficacy of drugs in social cognitive disturbances will be included, based on the most recent studies and the broader literature than previously searched. This protocol defines a priori the methods that will be used for study selection, data collection, quality assessment, and statistical syntheses. Discussion The findings this work are expected to help promote the development of better therapeutics of social cognitive impairments in schizophrenia and related psychiatric conditions. Systematic Review Registration [www.crd.york.ac.uk/prospero], identifier [CRD42021293224].
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Affiliation(s)
- Yuji Yamada
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Ryo Okubo
- Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
- *Correspondence: Ryo Okubo,
| | - Hisateru Tachimori
- Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
- Endowed Course for Health System Innovation, Keio University School of Medicine, Tokyo, Japan
| | - Takashi Uchino
- Department of Neuropsychiatry, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Ryotaro Kubota
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
- Department of Neuropsychiatry, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hiroki Okano
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Shuhei Ishikawa
- Department of Psychiatry, Hokkaido University Hospital, Sapporo, Japan
| | - Toru Horinouchi
- Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Keisuke Takanobu
- Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ryo Sawagashira
- Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yumi Hasegawa
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yohei Sasaki
- Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Motohiro Nishiuchi
- Graduate School of Human and Social Sciences, Musashino University, Tokyo, Japan
| | - Takahiro Kawashima
- Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yui Tomo
- Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Naoki Hashimoto
- Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Satoru Ikezawa
- Endowed Institute for Empowering Gifted Minds, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | - Takahiro Nemoto
- Department of Neuropsychiatry, Faculty of Medicine, Toho University, Tokyo, Japan
| | - Norio Watanabe
- Department of Psychiatry, Soseikai General Hospital, Kyoto, Japan
| | - Tomiki Sumiyoshi
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
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Vita A, Gaebel W, Mucci A, Sachs G, Barlati S, Giordano GM, Nibbio G, Nordentoft M, Wykes T, Galderisi S. European Psychiatric Association guidance on treatment of cognitive impairment in schizophrenia. Eur Psychiatry 2022; 65:e57. [PMID: 36059103 PMCID: PMC9532218 DOI: 10.1192/j.eurpsy.2022.2315] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Although cognitive impairment is a core symptom of schizophrenia related to poorer outcomes in different functional domains, it still remains a major therapeutic challenge. To date, no comprehensive treatment guidelines for cognitive impairment in schizophrenia are implemented. Methods The aim of the present guidance paper is to provide a comprehensive meta-review of the current available evidence-based treatments for cognitive impairment in schizophrenia. The guidance is structured into three sections: pharmacological treatment, psychosocial interventions, and somatic treatments. Results Based on the reviewed evidence, this European Psychiatric Association guidance recommends an appropriate pharmacological management as a fundamental starting point in the treatment of cognitive impairment in schizophrenia. In particular, second-generation antipsychotics are recommended for their favorable cognitive profile compared to first-generation antipsychotics, although no clear superiority of a single second-generation antipsychotic has currently been found. Anticholinergic and benzodiazepine burdens should be kept to a minimum, considering the negative impact on cognitive functioning. Among psychosocial interventions, cognitive remediation and physical exercise are recommended for the treatment of cognitive impairment in schizophrenia. Noninvasive brain stimulation techniques could be taken into account as add-on therapy. Conclusions Overall, there is definitive progress in the field, but further research is needed to develop specific treatments for cognitive impairment in schizophrenia. The dissemination of this guidance paper may promote the development of shared guidelines concerning the treatment of cognitive functions in schizophrenia, with the purpose to improve the quality of care and to achieve recovery in this population.
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Yamada Y, Sueyoshi K, Yokoi Y, Inagawa T, Hirabayashi N, Oi H, Shirama A, Sumiyoshi T. Transcranial Direct Current Stimulation on the Left Superior Temporal Sulcus Improves Social Cognition in Schizophrenia: An Open-Label Study. Front Psychiatry 2022; 13:862814. [PMID: 35795024 PMCID: PMC9251509 DOI: 10.3389/fpsyt.2022.862814] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/27/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Patients with schizophrenia show impairments of social cognition, which cause poor real-world functional outcomes. Transcranial direct current stimulation (tDCS) delivered to frontal brain areas has been shown to partially alleviate disturbances of social cognition. In this study, we aimed to determine whether multisession tDCS targeting the superior temporal sulcus (STS), a brain region closely related to social cognition, would improve social cognitive performance in patients with schizophrenia. METHODS This was an open-label, single-arm trial to investigate the benefits and safety of multisession tDCS over the left STS. Fifteen patients received tDCS (2 mA × 20 min) two times per day for 5 consecutive days. Anodal and cathodal electrodes were placed over the left STS and right supraorbital regions, respectively. Assessments with the Social Cognition Screening Questionnaire (SCSQ), the Hinting Task (HT), the Brief Assessment of Cognition in Schizophrenia (BACS), and the Positive and Negative Syndrome Scale (PANSS) were conducted at baseline and 1 month after the final stimulation. RESULTS Significant improvements were found on theory of mind, as measured using the SCSQ (d = 0.53) and the HT (d = 0.49). These changes on social cognition were not correlated with those of neurocognition, as measured using the BACS or psychotic symptoms, as measured using the PANSS. There were no adverse events of serious/moderate levels attributable to tDCS. CONCLUSION These results suggest that administration of multisession tDCS with anode stimulation targeting the left STS provides a novel strategy to improve functional outcomes in patients with schizophrenia. ETHICS STATEMENT The National Center of Neurology and Psychiatry Clinical Research Review Board (CRB3180006) approved this study. TRIAL REGISTRATION This study was registered within the Japan Registry of Clinical Trials (jRCTs032180026).
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Affiliation(s)
- Yuji Yamada
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kazuki Sueyoshi
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yuma Yokoi
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Takuma Inagawa
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Naotsugu Hirabayashi
- Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Hideki Oi
- Department of Clinical Data Science, Clinical Research & Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Aya Shirama
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Tomiki Sumiyoshi
- Department of Preventive Intervention for Psychiatric Disorders, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
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