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Strouza AI, Lawrence AJ, Vissia EM, Kakouris A, Akan A, Nijenhuis ERS, Draijer N, Chalavi S, Reinders AATS. Identity state-dependent self-relevance and emotional intensity ratings of words in dissociative identity disorder: A controlled longitudinal study. Brain Behav 2023; 13:e3208. [PMID: 37721528 PMCID: PMC10570477 DOI: 10.1002/brb3.3208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 09/19/2023] Open
Abstract
INTRODUCTION Dissociative identity disorder (DID) is characterized by, among others, amnesic episodes and the recurrence of different dissociative identity states. While consistently observed in clinical settings, to our knowledge, no controlled research study has shown the degree to which different identity states report autobiographical knowledge over time. Hence, the current study investigates self-relevance and emotional intensity ratings of words longitudinally. METHODS Data of 46 participants were included: 13 individuals with DID, 11 DID-simulating actors, and a control group of 22 paired individuals. Individuals with DID and DID simulators participated once in the neutral identity state (NIS) and once in the trauma-related dissociative identity state (TIS). The control group paired 11 healthy controls with 11 participants with posttraumatic stress disorder (PTSD) as a NIS-TIS pair. Self-relevance ratings of different word types were collected in a baseline and a follow-up session, on average 6 weeks apart. A mixed ANOVA design was used to assess the effects of group, session, word type, and dissociative identity state. RESULTS All participants in TIS and individuals with DID in NIS rated self-relevant trauma-related words more negatively. In the NIS, the control group rated self-relevant trauma-related words as less negative, whereas the ratings of simulating actors were intermediate. There was no group-dependent longitudinal effect for intensity ratings. CONCLUSIONS This study was the first to confirm clinical observations that self-relevant and emotional processing are different between individuals with DID and controls, but consistent over time. Actors were unable to perfectly simulate DID. The finding that ratings of self-relevant trauma-related words differ between subgroups as included in the study is in line with clinical observations.
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Affiliation(s)
- Aikaterini I. Strouza
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
- Department of Psychiatry, Amsterdam UMC, Location VUmcVU University AmsterdamAmsterdamThe Netherlands
| | - Andrew J. Lawrence
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
| | | | - Andreana Kakouris
- Department of Psychosis Studies, Institute of PsychiatryKing's College LondonLondonUK
| | - Ayse Akan
- Department of Psychosis Studies, Institute of PsychiatryKing's College LondonLondonUK
- North East London NHS Foundation TrustLondonUK
| | - Ellert R. S. Nijenhuis
- Clienia Littenheid AGPrivate Clinic for Psychiatry and PsychotherapyLittenheidSwitzerland
| | - Nel Draijer
- Department of PsychiatryVU University Medical CenterAmsterdamThe Netherlands
| | - Sima Chalavi
- Movement Control and Neuroplasticity Research Group, Department of Movement SciencesKU LeuvenLeuvenBelgium
| | - Antje A. T. S. Reinders
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
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Rao PS, Rangaswamy M, Evans J, Dutt A. Prospective memory in early and established psychosis: An Indian perspective. J Neuropsychol 2023; 17:461-476. [PMID: 37070648 DOI: 10.1111/jnp.12314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 03/12/2023] [Accepted: 03/23/2023] [Indexed: 04/19/2023]
Abstract
Individuals affected by psychosis often have deficits in several neurocognitive functions. Prospective memory (PM), the ability to remember to do things, is crucial for activities of daily living, social and occupational functioning, but very few studies have attempted to examine this domain of functioning in people with psychosis, particularly in India. A total of 71 patients with psychosis, (both early and established psychosis), and 140 age, gender and education-matched healthy controls were assessed using the Positive and Negative Symptom Scale, Hospital Anxiety and Depression scale, and Addenbrooke's Cognitive Examination. PM was assessed using the Cambridge Prospective Memory Test and the Prospective and Retrospective Memory Questionnaire (PRMQ). Group differences were evaluated using Mann-Whitney U-tests. Significantly greater cognitive deficits, higher anxiety and depression were evident in the psychosis group compared with controls. The psychosis group performed significantly poorer on both time- and event-based tests in CAMPROMPT than controls. These differences remained when controlling for age, education, general cognitive functioning and mood. The subjective measure of PM (PRMQ) did not differentiate the two groups. The PM performance of early and established psychosis patients was similar. Comparisons with cross-cultural data (PRMQ UK norms and CAMPROMPT and PRMQ Chinese data) revealed important differences in PM performance. Individuals with psychosis have significant deficits in both time- and event-based PM. CAMPROMPT emerged as a more sensitive PM measure compared with PRMQ. Results from cross-cultural comparisons underscore the need for cultural contextualization of assessments.
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Affiliation(s)
- Pulijala Sulakshana Rao
- Department of Psychology, Christ University, Bangalore, Karnataka, 560029, India
- Duttanagar Mental Health Centre, Kolkata, 700077, India
| | - Madhavi Rangaswamy
- Department of Psychology, Christ University, Bangalore, Karnataka, 560029, India
| | - Jonathan Evans
- Department of Psychology, Christ University, Bangalore, Karnataka, 560029, India
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Anirban Dutt
- Department of Psychology, Christ University, Bangalore, Karnataka, 560029, India
- Duttanagar Mental Health Centre, Kolkata, 700077, India
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
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Watson AJ, Harrison L, Preti A, Wykes T, Cella M. Cognitive trajectories following onset of psychosis: a meta-analysis. Br J Psychiatry 2022; 221:714-721. [PMID: 36149012 DOI: 10.1192/bjp.2022.131] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Cognitive impairment is a core feature of schizophrenia, associated with poor functional outcomes. The course of cognitive function in the years following illness onset has remained a subject of debate, with a previous analysis finding no worsening, providing support for the neurodevelopmental model of schizophrenia. Since then, many more studies have reported on longitudinal cognitive performance in early psychosis, with some indicating deterioration, which does not align with this view. AIMS This study aims to quantitatively review the literature on the longitudinal trajectory of cognitive deficits in the years following psychosis onset, in comparison with healthy controls. It is the first to also synthesise longitudinal data on social cognition. METHOD Electronic databases ('PubMed', 'PsycInfo' and 'Scopus') were searched (to end September 2021). Meta-analyses of 25 longitudinal studies of cognition in early psychosis were conducted (1480 patients, 789 health controls). Unlike previous analyses, randomised controlled trials and those with multiple cognitive testing periods within the first year were excluded to minimise bias (PROSPERO, ID: CRD42021241525). RESULTS Small improvements were observed for global cognition (g = 0.25, 95% CI 0.17-0.33) and individual cognitive domains, but these were comparable with healthy controls and likely an artefact of practice effects. CONCLUSIONS There is no evidence of continued cognitive decline or improvement in the early years following psychosis onset, with a need for more studies over longer follow-up periods. Practice effects highlight the importance of including control samples in longitudinal and intervention studies. Further data are needed to evaluate the course of social cognition subdomains.
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Affiliation(s)
- Andrew J Watson
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK; and South London and Maudsley NHS Foundation Trust, London, UK
| | - Lauren Harrison
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | - Antonio Preti
- Dipartimento di Neuroscienze, Università degli studi di Torino, Italy
| | - Til Wykes
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK; and South London and Maudsley NHS Foundation Trust, London, UK
| | - Matteo Cella
- Department of Psychology, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK; and South London and Maudsley NHS Foundation Trust, London, UK
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Sun J, Shi Z, Yu L, Wen Y, Zhang D. Predictors of preoperative cognitive dysfunction in adults with Moyamoya disease: a preliminary research. BMC Neurol 2022; 22:12. [PMID: 34991523 PMCID: PMC8734217 DOI: 10.1186/s12883-021-02511-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 12/02/2021] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To explore potential risk factors of preoperative cognitive dysfunction in adult patients with moyamoya disease (MMD) and discuss significance of moyamoya vessels. METHODS The author reviewed adult MMD patients harboring no parenchymal infarction or hemorrhage underwent a standardized neuropsychological assessment test battery from December 2018 to May 2019. The authors defined patients with cognitive dysfunction as cognitive impairment shown on 3 or more neuropsychological tests. According to the presence of cerebral angiography, arterial stenosis, moyamoya vessels, and compensatory arteries were conducted. Univariate and multivariate analyses were performed to identify predictors for cognitive dysfunction before surgery. Subgroup analyses by onset type and Suzuki stage were carried out to identify specific predictors for preoperative cognitive dysfunction. RESULTS In total, 29 of 92 (31.52%) patients had cognitive dysfunction. Multivariate analysis showed that moyamoya vessels generating from left hemisphere was recognized as independent predictor for cognitive dysfunction (P = 0.025, OR [95%CI], 0.085 [0.012-0.874]). For patients in left ICA-moyamoya subgroup, 19 of 45 (42.22%) cases with sparse moyamoya vessels had cognitive dysfunction (P = 0.031), while 22 (91.67%) of patients with dense moyamoya vessels had normal cognition (P = 0.004). Moyamoya vessels arising from ophthalmic artery had no significant association with cognitive dysfunction (P = 0.111). Multivariate analysis found that moyamoya vessels originating from left ICA was recognized as independent predictors for preoperative cognitive dysfunction (P = 0.048, OR [95%CI], 0.394 [0.132-0.926]). CONCLUSIONS Moyamoya vessels arising from left hemisphere was a risk factor for the preoperative cognitive dysfunction in adult patients with MMD, with the denser moyamoya vessels, the less cognitive dysfunction. The current study offers a new perspective of moyamoya vessels and supporting data for choosing MMD candidates on cerebral revascularization.
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Affiliation(s)
- Jian Sun
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070 MN China
- Department of Neurosurgery, Beijing Changping District Hospital, Beijing, China
| | - Zhiyong Shi
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu China
| | - Lebao Yu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070 MN China
| | - Yujie Wen
- Department of Psychiatry, The National Clinical Research Center for Mental Disorders & Beijing Key Laboratory of Mental Disorders & Beijing Institute for Brain Disorders Center of Schizophrenia, Beijing Anding Hospital, Beijing, China
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070 MN China
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Mwesiga EK, Akena D, Koen N, Senono R, Obuku EA, Gumikiriza JL, Robbins RN, Nakasujja N, Stein DJ. A systematic review of research on neuropsychological measures in psychotic disorders from low and middle-income countries: The question of clinical utility. Schizophr Res Cogn 2020; 22:100187. [PMID: 32874938 PMCID: PMC7451606 DOI: 10.1016/j.scog.2020.100187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 08/02/2020] [Accepted: 08/17/2020] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Several studies of neuropsychological measures have been undertaken in patients with psychotic disorders from low- and middle-income countries (LMICs). It is, however, unclear if the measures used in these studies are appropriate for cognitive screening in clinical settings. We undertook a systematic review to determine if measures investigated in research on psychotic disorders in LMICs meet the clinical utility criteria proposed by The Working Group on Screening and Assessment. METHODS Preferred Reporting Items for Systematic Reviews and Meta-Analyses were employed. We determined if tests had been validated against a comprehensive test battery, the duration and scope of the tests, the personnel administering the tests, and the means of administration. RESULTS A total of 31 articles were included in the review, of which 11 were from Africa. The studies included 3254 participants with psychosis and 1331 controls. 3 studies reported on the validation of the test against a comprehensive cognitive battery. Assessments took 1 h or less to administer in 6/31 studies. The average number of cognitive domains assessed was four. Nonspecialized staff were used in only 3/31 studies, and most studies used pen and paper tests (17/31). CONCLUSION Neuropsychological measures used in research on psychotic disorders in LMICs typically do not meet the Working Group on Screening and Assessment clinical utility criteria for cognitive screening. Measures that have been validated in high-income countries but not in LMICs that do meet these criteria, such as the Brief Assessment of Cognition in Schizophrenia, therefore deserve further study in LMIC settings.
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Affiliation(s)
- Emmanuel K. Mwesiga
- Department of Psychiatry, Makerere University, Uganda
- Department of Psychiatry and Neuroscience Institute, University of Cape Town, South Africa
- Africa Centre for Systematic Reviews and Knowledge Translation, College of Health Sciences, Makerere University, Uganda
| | - Dickens Akena
- Department of Psychiatry, Makerere University, Uganda
- Africa Centre for Systematic Reviews and Knowledge Translation, College of Health Sciences, Makerere University, Uganda
| | - Nastassja Koen
- SA MRC Research Unit on Risk & Resilience in Mental Disorders, South Africa
- Department of Psychiatry and Neuroscience Institute, University of Cape Town, South Africa
| | - Richard Senono
- Infectious Disease Institute, Makerere University, Uganda
| | - Ekwaro A. Obuku
- Africa Centre for Systematic Reviews and Knowledge Translation, College of Health Sciences, Makerere University, Uganda
| | | | - Reuben N. Robbins
- New York State Psychiatric Institute, Columbia University Irving Medical Center, United States of America
| | | | - Dan J. Stein
- Department of Psychiatry and Neuroscience Institute, University of Cape Town, South Africa
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Tyburski E, Karabanowicz E, Mak M, Lebiecka Z, Samochowiec A, Pełka-Wysiecka J, Sagan L, Samochowiec J. Color Trails Test: A New Set of Data on Cognitive Flexibility and Processing Speed in Schizophrenia. Front Psychiatry 2020; 11:521. [PMID: 32581889 PMCID: PMC7296107 DOI: 10.3389/fpsyt.2020.00521] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 05/21/2020] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Although schizophrenia patients have been reported to manifest deficits in cognitive flexibility and lower processing speed (measured with i.a., the Color Trails Test, CTT), there still remain a few matters that require further investigation. We have therefore formulated three research aims: 1) to examine the factor structure of CTT in schizophrenia patients and healthy controls, 2) to compare different CTT performance measures in the two groups, 3) to investigate the relationship between these measures and selected psychopathological symptoms in the patient group. METHODS Sixty-seven patients with paranoid schizophrenia and 67 healthy controls, matched for gender, age, number of years of education, and overall cognitive functioning underwent assessment of cognitive flexibility and processing speed with the CTT. RESULTS Factor analysis of CTT variables based on the principal component method revealed a four-factor solution in both groups. Compared with healthy controls, the patients performed poorer on CTT 1 time, CTT 2 time, 2-1 difference, prompts in CTT 2, and had higher regression factor scores for Factor 1 (reflecting the slower speed of perceptual tracking). Furthermore, significant links were found between some CTT measures, and negative and disorganization symptoms. CONCLUSIONS Schizophrenia patients exhibit problems with speed of perceptual tracking and executive processes dependent on processing speed. Our results may be useful for the development of neuropsychological diagnostic methods for schizophrenia patients. It seems that, compared to other CTT indices, CTT 1 time, CTT 2 time, and 2-1 difference are more appropriate measures of cognitive performance in schizophrenia patients.
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Affiliation(s)
- Ernest Tyburski
- Institute of Psychology, SWPS University of Social Sciences and Humanities, Poznań, Poland
| | - Ewa Karabanowicz
- Institute of Psychology, University of Szczecin, Szczecin, Poland
| | - Monika Mak
- Independent Clinical Psychology Unit, Pomeranian Medical University, Szczecin, Poland
| | - Zofia Lebiecka
- Independent Clinical Psychology Unit, Pomeranian Medical University, Szczecin, Poland
| | | | | | - Leszek Sagan
- Department of Neurosurgery, Pomeranian Medical University, Szczecin, Poland
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University, Szczecin, Poland
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Mioni G, Fracasso V, Cardullo S, Stablum F. Comparing different tests to detect early manifestation of prospective memory decline in aging. Clin Neuropsychol 2020; 36:105-137. [PMID: 32301378 DOI: 10.1080/13854046.2020.1749308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Objective: Prospective memory (PM) is the ability to remember to perform future intentions. Previous studies have demonstrated that, compared to a younger cohort, healthy older adults have impairments in PM. Considering the importance of early detection of age-related PM decline, the present study aims to compare the performance of healthy older adults using three well-known PM tests commonly used in clinical settings.Method: In the present study, we tested 70 older adults (65-95 years old) using the Cambridge Prospective Memory Test (CAMPROMPT), the Memory for Intentions Screening Test (MIST) and the Royal Prince Alfred Prospective Memory Test (RPA-ProMem). In order to compare performance across tests and the interaction between age and cues, we performed a linear mixed model with random intercept and random slopes. Moreover, additional mixed models with random intercept were run for analyzing the additional information provided by MIST and RPA-ProMem regarding delay responses, response modality effects and type of errors committed.Results: Our data showed a drop in PM performance as age increased detected by all three tests. Furthermore, CAMPROMPT was the most sensitive test to identify differences in PM for event-and time-based cues, at least for participants with 65-77 years old. When data were analyzed in term of delay responses, participants were more accurate for 2 min delay (MIST) and 30 in delay (RPA-ProMem). Participants were less accurate when response modality was "verbal" compared to "action" (MIST) and made more PM errors as age increased.Conclusions: Overall, the study provides important information regarding age-related PM decline and can help researchers as well as clinicians in deciding the preferred test to evaluate PM performance.
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Affiliation(s)
- Giovanna Mioni
- Dipartimento di Psicologia Generale, Università di Padova, Padova, Italy
| | - Verena Fracasso
- Dipartimento di Psicologia Generale, Università di Padova, Padova, Italy
| | | | - Franca Stablum
- Dipartimento di Psicologia Generale, Università di Padova, Padova, Italy
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Cheung EFC, Lui SSY, Wang Y, Liu ACY, Chui WWH, Yeung HKH, Yang TX, Shum DHK, Chan RCK. Prospective memory in individuals with first-episode schizophrenia: A two-year longitudinal study. Early Interv Psychiatry 2019; 13:1099-1104. [PMID: 30175894 DOI: 10.1111/eip.12733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 07/15/2018] [Accepted: 07/29/2018] [Indexed: 12/11/2022]
Abstract
AIM The present study aimed to explore the two-year naturalistic trajectory of time- and event-based prospective memory (PM) in patients with first-episode schizophrenia. METHODS We administered a computer-based dual-task PM paradigm to 57 individuals with first-episode schizophrenia at baseline and after 6 months, 12 months and 24 months. Forty-eight healthy controls were also recruited and completed all the measures at baseline. We compared the trajectories between time-based and event-based PM in first-episode schizophrenia patients using repeated measures ANOVAs, and examined the relationship between PM and clinical symptoms using Spearman's correlation. RESULTS PM impairments improved significantly after 24 months of follow-up. However, time-based and event-based PM appeared to run different trajectories. After 24 months, first-episode schizophrenia patient performed poorer than healthy controls in time-based but not event-based PM. PM did not appear to be correlated with clinical symptoms, both cross-sectionally and longitudinally. CONCLUSIONS This is one of the longest follow-up studies investigating PM in first-episode schizophrenia. Our results provide evidence to support that time-based PM is more temporally stable than event-based PM.
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Affiliation(s)
| | - Simon S Y Lui
- Castle Peak Hospital, Hong Kong, China.,Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
| | - Ya Wang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
| | | | | | | | - Tian-Xiao Yang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
| | - David H K Shum
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Menzies Health Institute Queensland, School of Applied Psychology, Griffith University-Gold Coast, Southport, Queensland, Australia
| | - Raymond C K Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
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Zhang H, Wang Y, Hu Y, Zhu Y, Zhang T, Wang J, Ma K, Shi C, Yu X, Li C. Meta-analysis of cognitive function in Chinese first-episode schizophrenia: MATRICS Consensus Cognitive Battery (MCCB) profile of impairment. Gen Psychiatr 2019; 32:e100043. [PMID: 31423473 PMCID: PMC6677937 DOI: 10.1136/gpsych-2018-100043] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 05/02/2019] [Accepted: 05/17/2019] [Indexed: 01/10/2023] Open
Abstract
Background Compromised neurocognition is a core feature of schizophrenia. With increasing studies researching cognitive function of Chinese patients with first-episode schizophrenia (FES) using MATRICS Consensus Cognitive Battery (MCCB), it is not clear about the level and pattern of cognitive impairment among this population. Aim To provide a meta-analysis systematically analysing studies of neurocognitive function using MCCB in Chinese patients with FES. Methods An independent literature search of both Chinese and English databases up to 13 March 2019 was conducted by two reviewers. Standardised mean difference (SMD) was calculated using the random effects model to evaluate the effect size. Results 56 studies (FES=3167, healthy controls (HC)=3017) were included and analysed. No study was rated as 'high quality' according to Strengthening the Reporting of Observational Studies in Epidemiology. Compared with HCs, Chinese patients with FES showed impairment with large effect size in overall cognition (SMD=-1.60, 95% CI -1.82 to -1.38, I 2=67%) and all seven cognitive domains, with the SMD ranging from -0.87 to -1.41. In nine MCCB subtests, patients with FES showed significant difference in Symbol Coding (SMD=-1.90), Trail Making Test (TMT) (SMD=-1.36), Continuous Performance Test-Identical Pairs (SMD=-1.33), Hopkins Verbal Learning Test (SMD=-1.24), Brief Visuospatial Memory Test (SMD=-1.18), Mazes (SMD=-1.16), Category Fluency (SMD=-1.01), Spatial Span (SMD=-0.69) and Mayer-Salovey-Caruso Emotional Intelligence Test (SMD=-0.38). Conclusions Our meta-analysis demonstrates that Chinese patients with FES show neurocognitive deficits across all seven MCCB cognitive domains and all nine subtests, particularly in two neurocognitive domains: speed of processing and attention/vigilance, with the least impairment shown in social cognition. Symbol Coding and TMT may be the most sensitive tests to detect cognitive deficit in Chinese patients with FES.
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Affiliation(s)
- Huijuan Zhang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yao Wang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuliang Hu
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yikang Zhu
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianhong Zhang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jijun Wang
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ke Ma
- Peking University Institute of Mental Health, Sixth Hospital, Beijing, China.,National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing, China.,Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China
| | - Chuan Shi
- Peking University Institute of Mental Health, Sixth Hospital, Beijing, China.,National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing, China.,Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China
| | - Xin Yu
- Peking University Institute of Mental Health, Sixth Hospital, Beijing, China.,National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing, China.,Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China
| | - Chunbo Li
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Institute of Psychology and Behavioral Science, Shanghai Jiao Tong University, Shanghai, China
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10
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Liu LL, Gan MY, Cui JF, Chen T, Tan SP, Neumann DL, Shum DHK, Wang Y, Chan RCK. The general facilitation effect of implementation intentions on prospective memory performance in patients with schizophrenia. Cogn Neuropsychiatry 2018; 23:350-363. [PMID: 30269636 DOI: 10.1080/13546805.2018.1528143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Prospective memory (PM) refers to remembering to execute a planned intention in the future. It can be divided into event- and time-based, according to the nature of the PM cue. Event-based PM cues can be classified as focal or non-focal. Patients with schizophrenia (SCZ) have been found to be impaired in both event- and time-based PM. PM has been found to be improved by implementation intentions, which is an encoding strategy in the format of "if X then Y". This study examined the effect of implementation intentions on a non-focal event-based and a time-based PM task in patients with SCZ. METHODS Forty-two patients with SCZ and 42 healthy controls were allocated to either an implementation intention or a control PM instruction condition and were asked to complete two PM tasks. RESULTS Implementation intentions was found to improve performance in both the non-focal event-based and time-based PM tasks in patients with SCZ and healthy controls, with no costs to the ongoing task. The improvement in time-based PM performance in the implementation intentions condition was partially mediated by the frequency of clock checking behaviour. CONCLUSIONS Implementation intentions can facilitate PM performance in patients with SCZ and has the potential to be used as a clinical intervention tool.
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Affiliation(s)
- Lu-Lu Liu
- a Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health , Institute of Psychology, Chinese Academy of Sciences , Beijing , China.,b Department of Psychology , University of Chinese Academy of Sciences , Beijing , China
| | | | - Ji-Fang Cui
- d Institute of Educational Information and Statistics , National Institute of Education Sciences , Beijing , China
| | - Tao Chen
- a Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health , Institute of Psychology, Chinese Academy of Sciences , Beijing , China.,b Department of Psychology , University of Chinese Academy of Sciences , Beijing , China
| | - Shu-Ping Tan
- c Beijing Huilongguan Hospital , Beijing , China
| | - David L Neumann
- e Menzies Health Institute Queensland and School of Applied Psychology , Griffith University , Gold Coast , Australia
| | - David H K Shum
- a Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health , Institute of Psychology, Chinese Academy of Sciences , Beijing , China.,e Menzies Health Institute Queensland and School of Applied Psychology , Griffith University , Gold Coast , Australia
| | - Ya Wang
- a Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health , Institute of Psychology, Chinese Academy of Sciences , Beijing , China.,b Department of Psychology , University of Chinese Academy of Sciences , Beijing , China
| | - Raymond C K Chan
- a Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health , Institute of Psychology, Chinese Academy of Sciences , Beijing , China.,b Department of Psychology , University of Chinese Academy of Sciences , Beijing , China
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Mohn C, Torgalsbøen AK. Details of attention and learning change in first-episode schizophrenia. Psychiatry Res 2018; 260:324-330. [PMID: 29227896 DOI: 10.1016/j.psychres.2017.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 10/11/2017] [Accepted: 12/01/2017] [Indexed: 11/29/2022]
Abstract
Impaired attention and learning functions are common in schizophrenia. The details of this impairment, and how these change across time, are not well known. We aimed to compare the parameters of well-known attention and learning neuropsychological tests in first-episode schizophrenia (FES) patients and healthy controls in a 2-year follow-up period. The performance of 28-25 FES patients and pairwise matched healthy controls on the Continuous Performance Test-Identical Pairs, the revised Hopkins Verbal Learning Test, and the revised Brief Visuospatial Memory Test was compared at baseline and 2 years later. The attention dysfunction of the FES group was driven by slow reaction time and a comparative failure to identify correct hits. The reaction time was reduced somewhat across time in the patient group. Regarding the learning tasks, both groups increased their number of correct answers across trials. However, at each trial, the patient group exhibited lower scores, with a trend towards better visual learning performance across time. In summary, the FES patients were impaired in most of the parameters of the attention and learning tasks. Across time, modest improvements in reaction time and visual learning were displayed in the FES group. However, this group never caught up with the control group.
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Affiliation(s)
- Christine Mohn
- Research Department, Vestre Viken Hospital Trust, Wergelands gate 10, 3005 Drammen, Norway.
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Wang Y, Chan RCK, Shum DHK. Schizophrenia and prospective memory impairments: a review. Clin Neuropsychol 2017; 32:836-857. [DOI: 10.1080/13854046.2017.1406144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ya Wang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Raymond C. K. Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - David H. K. Shum
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
- School of Applied Psychology, Griffith University, Gold Coast, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
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