1
|
Latrèche C, Maeder J, Mancini V, Bortolin K, Schneider M, Eliez S. Altered developmental trajectories of verbal learning skills in 22q11.2DS: associations with hippocampal development and psychosis. Psychol Med 2023; 53:4923-4932. [PMID: 35775360 PMCID: PMC10476015 DOI: 10.1017/s0033291722001842] [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: 10/12/2021] [Revised: 03/02/2022] [Accepted: 05/31/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND The cognitive profile in 22q11.2 deletion syndrome (22q11.2DS) is often characterized by a discrepancy between nonverbal vs. verbal reasoning skills, in favor of the latter skills. This dissociation has also been observed in memory, with verbal learning skills described as a relative strength. Yet the development of these skills is still to be investigated. We thus aimed to explore verbal learning longitudinally. Furthermore, we explored verbal learning and its respective associations with hippocampal alterations and psychosis, which remain largely unknown despite their high prevalence in 22q11.2DS. METHODS In total, 332 individuals (173 with 22q11.2DS) aged 5-30 years completed a verbal-paired associates task. Mixed-models regression analyses were conducted to explore developmental trajectories with threefold objectives. First, verbal learning and retention trajectories were compared between 22q11.2DS vs. HC. Second, we examined hippocampal volume development in 22q11.2DS participants with lower vs. higher verbal learning performance. Third, we explored verbal learning trajectories in 22q11.2DS participants with vs. without positive psychotic symptoms and with vs. without a psychotic spectrum disorder (PSD). RESULTS Our findings first reveal lower verbal learning performance in 22q11.2DS, with a developmental plateau emerging from adolescence. Second, participants with lower verbal learning scores displayed a reduced left hippocampal tail volume. Third, participants with PSD showed a deterioration of verbal learning performance, independently of verbal reasoning skills. CONCLUSION Our study challenges the current view of preserved verbal learning skills in 22q11.2DS and highlights associations with specific hippocampal alterations. We further identify verbal learning as a novel cognitive marker for psychosis in 22q11.2DS.
Collapse
Affiliation(s)
- Caren Latrèche
- Developmental Imaging and Psychopathology Lab, Department of Psychiatry, University of Geneva School of Medicine, Geneva, Switzerland
| | - Johanna Maeder
- Developmental Imaging and Psychopathology Lab, Department of Psychiatry, University of Geneva School of Medicine, Geneva, Switzerland
| | - Valentina Mancini
- Developmental Imaging and Psychopathology Lab, Department of Psychiatry, University of Geneva School of Medicine, Geneva, Switzerland
| | - Karin Bortolin
- Developmental Imaging and Psychopathology Lab, Department of Psychiatry, University of Geneva School of Medicine, Geneva, Switzerland
- Medical Image Processing Lab, Institute of Bioengineering, EPFL, Lausanne, Switzerland
| | - Maude Schneider
- Clinical Psychology Unit for Intellectual and Developmental Disabilities, Faculty of Psychology and Educational Sciences, University of Geneva, Geneva, Switzerland
- Department of Neurosciences, KU Leuven, Center for Contextual Psychiatry, Leuven, Belgium
| | - Stephan Eliez
- Developmental Imaging and Psychopathology Lab, Department of Psychiatry, University of Geneva School of Medicine, Geneva, Switzerland
- Department of Genetic Medicine and Development, University of Geneva School of Medicine, Geneva, Switzerland
| |
Collapse
|
2
|
Hasse-Sousa M, Martins DS, Petry-Perin C, Britto MJSD, Remus IB, Lapa CDO, Reckziegel RDFX, Sales SCD, Jesus LSD, Philippsen M, Massuda R, Van Rheenen TE, Gama CS, Czepielewski LS. The role of semantic clustering in the relationship between verbal memory and psychosocial functioning in schizophrenia and bipolar disorder: Possible distinct cognitive pathway compared to healthy controls. J Affect Disord 2023; 320:330-339. [PMID: 36162669 DOI: 10.1016/j.jad.2022.09.077] [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: 11/24/2021] [Revised: 09/02/2022] [Accepted: 09/20/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Verbal memory (VM) is impaired in schizophrenia (SZ) and bipolar disorder (BD), and predicts psychosocial functioning. However, there is a lack of research exploring the role of VM component processes, including semantic clustering, in these disorders. Semantic clustering might impact this association, as effective semantic memory strategies may reflect unimpaired executive control, leading to an adequate functioning. We aimed to investigate VM components in SZ and BD, and the role of semantic clustering in the relationship between VM and functioning. METHODS We included 495 participants (156 SZ, 172 BD, and 167 healthy controls (HC)) that underwent an assessment using the Hopkins Verbal Learning Test - Revised for VM and the Functioning Assessment Short Test for psychosocial functioning. We compared groups through ANOVAs and investigated the effect of semantic clustering in the relationship between VM total immediate free recall and functioning through linear regression models. RESULTS SZ had worse overall VM performance compared to BD, which performed worse than HCs. HCs used more semantic clustering than SZ and BD, but there were no differences between the two clinical groups. In HCs, semantic clustering impacted the relationship between VM performance and functioning, while no interaction was observed in SZ or BD. LIMITATIONS Cross-sectional design; no medication effects or other cognitive functions were assessed. CONCLUSIONS SZ and BD may use an alternative cognitive pathway in which the relationship between VM and functioning is independent of complex cognitive processes such as semantic clustering, supporting the cognitive remediation targeting of VM in these disorders.
Collapse
Affiliation(s)
- Mathias Hasse-Sousa
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós-Graduação em Psicologia, Departamento de Psicologia do Desenvolvimento e da Personalidade, Instituto de Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Dayane Santos Martins
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carolina Petry-Perin
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Maria Julia Silva de Britto
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Isadora Bosini Remus
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Clara de Oliveira Lapa
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ramiro de Freitas Xavier Reckziegel
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Sarah Corrêa de Sales
- Psychosis Treatment and Research Program, Department of Forensic Medicine and Psychiatry, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Letícia Stephane de Jesus
- Psychosis Treatment and Research Program, Department of Forensic Medicine and Psychiatry, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Marielli Philippsen
- Psychosis Treatment and Research Program, Department of Forensic Medicine and Psychiatry, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Raffael Massuda
- Psychosis Treatment and Research Program, Department of Forensic Medicine and Psychiatry, Universidade Federal do Paraná (UFPR), Curitiba, Brazil
| | - Tamsyn E Van Rheenen
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia; Centre for Mental Health, School of Health Sciences, Swinburne University, Melbourne, VIC, Australia
| | - Clarissa Severino Gama
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Letícia Sanguinetti Czepielewski
- Laboratory of Molecular Psychiatry, Hospital de Clínicas de Porto Alegre; Programa de Pós-Graduação em Psiquiatria e Ciências do Comportamento, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Programa de Pós-Graduação em Psicologia, Departamento de Psicologia do Desenvolvimento e da Personalidade, Instituto de Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| |
Collapse
|
3
|
Sousa AE, Ryan JD, Lepage M. Exploring the sociodemographic, clinical and neuropsychological factors associated with relational memory in schizophrenia. Cogn Neuropsychiatry 2023; 28:67-84. [PMID: 36464633 DOI: 10.1080/13546805.2022.2153657] [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] [Indexed: 12/12/2022]
Abstract
INTRODUCTION The Transverse Patterning (TP) task has been used to measure episodic relational memory (RM) deficits in clinical populations. Individuals with schizophrenia often fail to learn TP with standard, and sometimes extensive training. Identifying the differences between TP learners and non-learners can improve our understanding of successful TP performance and its underlying mechanisms, which may help improve interventions aimed at ameliorating RM performance. We investigated sociodemographic, clinical and neuropsychological factors associated with TP performance in schizophrenia. METHODS Sixty-six participants with schizophrenia completed a semantically rich and a relational-binding dependent version of the TP task and reported on their task awareness and strategy use. RESULTS Twenty-six participants failed to learn the task rules after extensive training. Learners had superior verbal, visual and working memory, executive functions and overall cognitive functioning compared to non-learners. Learners also had superior awareness of task rules and pairs relationships and used elaborated cognitive strategies more often. CONCLUSIONS Our results support previous findings that some individuals with schizophrenia show RM impairment even with extensive TP training. We shed light on neuropsychological and metacognitive factors associated with TP performance. This knowledge could enhance interventions targeted to improve relational memory in schizophrenia when extensive training fails.
Collapse
Affiliation(s)
- Ana Elisa Sousa
- Douglas Mental Health University Institute, Montreal, Canada.,Integrated Program in Neuroscience, McGill University, Montréal, Canada
| | - Jennifer D Ryan
- Rotman Research Institute, Baycrest, Department of Psychology, University of Toronto, Toronto, Canada
| | - Martin Lepage
- Douglas Mental Health University Institute, Montreal, Canada.,Department of Psychiatry, McGill University, Montreal, Canada
| |
Collapse
|
4
|
Cognitive Remediation in Virtual Environments for Patients with Schizophrenia and Major Depressive Disorder: A Feasibility Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18179081. [PMID: 34501669 PMCID: PMC8431186 DOI: 10.3390/ijerph18179081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/18/2021] [Accepted: 08/21/2021] [Indexed: 11/17/2022]
Abstract
Standard approaches to cognitive remediation can suffer from limited skill transferability to patients' life. Complex virtual environments (VEs) enable us to create ecologically valid remediation scenarios while preserving laboratory conditions. Nevertheless, the feasibility and efficacy of these programs in psychiatric patients are still unknown. Our aim was to compare the feasibility and efficacy of a novel rehabilitation program, designed in complex VEs, with standard paper-pencil treatment in patients with schizophrenia and major depressive disorder. We recruited 35 participants to complete a VE rehabilitation program and standard treatment in a crossover pilot study. Twenty-eight participants completed at least one program, 22 were diagnosed with schizophrenia and 6 with major depressive disorder. Participant's performance in the representative VE training task significantly improved in terms of maximum achieved difficulty (p ≤ 0.001), speed (p < 0.001) and efficacy (p ≤ 0.001) but not in item performance measure. Neither the standard treatment nor the VE program led to improvement in standardized cognitive measures. Participants perceived both programs as enjoyable and beneficial. The refusal rate was higher in the VE program (8.6%) than in the standard treatment (0%). But in general, the VE program was well-accepted by the psychiatric patients and it required minimal involvement of the clinician due to automatic difficulty level adjustment and performance recording. However, the VE program did not prove to be effective in improving cognitive performance in the standardized measures.
Collapse
|
5
|
Carlesimo GA, Taglieri S, Zabberoni S, Scalici F, Peppe A, Caltagirone C, Costa A. Subjective organization in the episodic memory of individuals with Parkinson's disease associated with mild cognitive impairment. J Neuropsychol 2021; 16:161-182. [PMID: 34089629 DOI: 10.1111/jnp.12256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Word clustering (i.e., the ability to reproduce the same word pairs in consecutive recall trials of an unrelated word list) has been extensively investigated as a proxy of subjective organization (SO) of memorandum. In healthy subjects and in groups of brain-damaged patients, the rate of SO generally predicts accuracy of word list recall. This study aimed at evaluating SO in the performance of patients with Parkinson's disease (PD) on a word list recall task in order to investigate the basic mechanisms of episodic memory impairment that are frequently observed in these patients. For this purpose, 56 PD patients, who were stratified according to the presence and quality of mild cognitive impairment (MCI), and a group of healthy controls (HCs) were administered a word list task and an extensive battery of neuropsychological tests. Results showed that recall accuracy on the word list task progressively decreased passing from HC to PD patients without cognitive impairment, to patients with single-domain dysexecutive MCI and to patients with multiple-domain dysexecutive and amnesic MCI. Conversely, only the latter PD group showed a lower SO score than that achieved by the other groups. In the overall PD group, correlational and regression analyses demonstrated that SO scores and a composite score of executive functions were not reciprocally related, but both provided an independent and significant contribution to the prediction of word list recall accuracy. These data are discussed in terms of the contribution of executive functions and hippocampal storage processes to the onset of memory impairment in PD.
Collapse
Affiliation(s)
- Giovanni Augusto Carlesimo
- Department of Systems Medicine, Tor Vergata University, Rome, Italy.,IRCCS Santa Lucia Foundation, Rome, Italy
| | - Sara Taglieri
- IRCCS Santa Lucia Foundation, Rome, Italy.,Niccolò Cusano University, Rome, Italy
| | | | | | | | - Carlo Caltagirone
- Department of Systems Medicine, Tor Vergata University, Rome, Italy.,IRCCS Santa Lucia Foundation, Rome, Italy
| | - Alberto Costa
- IRCCS Santa Lucia Foundation, Rome, Italy.,Niccolò Cusano University, Rome, Italy
| |
Collapse
|
6
|
Sousa AE, Mahdid Y, Brodeur M, Lepage M. A Feasibility Study on the Use of the Method of Loci for Improving Episodic Memory Performance in Schizophrenia and Non-clinical Subjects. Front Psychol 2021; 12:612681. [PMID: 33613393 PMCID: PMC7892625 DOI: 10.3389/fpsyg.2021.612681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/11/2021] [Indexed: 11/16/2022] Open
Abstract
We investigated the feasibility of a short intervention using the Method of Loci (MoL), a well-known visuospatial mnemonic, to improve episodic memory recall performance in schizophrenia. The MoL training protocol comprised encoding and recall of two lists of items (words and images), a training session and practice with MoL. Then, participants had the opportunity to put into practice the newly learned MoL and were instructed to encode and recall two new lists of items using. This approach was first validated with healthy individuals (N = 71). Subsequently, five individuals with schizophrenia completed the protocol. Improvement in healthy individuals was observed for the word list (Wilcoxon effect size r = 0.15). No significant memory improvement was denoted in the schizophrenia group, possibly due to participants' difficulties using the method efficiently and due to fatigue. The MoL seems to require episodic memory, working memory monitoring and executive functions, making it suboptimal for a population with impairments in all those domains. Future research should examine the use of other strategies, better suited for individuals with cognitive impairments like those found in schizophrenia.
Collapse
Affiliation(s)
- Ana Elisa Sousa
- Comprehensive Research Into Schizophrenia and Psychosis (CRISP) Group, Integrated Program in Neurosciences, Douglas Mental Health University Institute, McGill University, Montréal, QC, Canada
| | - Yacine Mahdid
- Integrated Program in Neurosciences, McGill University, Montréal, QC, Canada
| | - Mathieu Brodeur
- Douglas Mental Health University Institute, McGill University, Montréal, QC, Canada
| | - Martin Lepage
- Comprehensive Research Into Schizophrenia and Psychosis (CRISP) Group, Department of Psychiatry, Douglas Mental Health University Institute, McGill University, Montréal, QC, Canada
| |
Collapse
|
7
|
Medial Temporal Lobe Atrophy is Related to Learning Strategy Changes in Amnestic Mild Cognitive Impairment. J Int Neuropsychol Soc 2019; 25:706-717. [PMID: 31023395 DOI: 10.1017/s1355617719000353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Deficits in the semantic learning strategy were observed in subjects with amnestic mild cognitive impairment (aMCI) in our previous study. In the present study, we explored the contributions of executive function and brain structure changes to the decline in the semantic learning strategy in aMCI. METHODS A neuropsychological battery was used to test memory and executive function in 96 aMCI subjects and 90 age- and gender-matched healthy controls (HCs). The semantic clustering ratio on the verbal learning test was calculated to evaluate learning strategy. Medial temporal lobe atrophy (MTA) and white matter hyperintensities (WMH) were measured on MRI with the MTA and Fazekas visual rating scales, respectively. RESULTS Compared to HCs, aMCI subjects had poorer performance in terms of memory, executive function, and the semantic clustering ratio (P < .001). In aMCI subjects, no significant correlation between learning strategy and executive function was observed. aMCI subjects with obvious MTA demonstrated a lower semantic clustering ratio than those without MTA (P < .001). There was no significant difference in the learning strategies between subjects with high-grade WMH and subjects with low-grade WMH. CONCLUSION aMCI subjects showed obvious impairment in the semantic learning strategy, which was attributable to MTA but independent of executive dysfunction and subcortical WMH. These findings need to be further validated in large cohorts with biomarkers identified using volumetric brain measurements. (JINS, 2019, 25, 706-717).
Collapse
|
8
|
Guimond S, Béland S, Lepage M. Strategy for Semantic Association Memory (SESAME) training: Effects on brain functioning in schizophrenia. Psychiatry Res Neuroimaging 2018; 271:50-58. [PMID: 29102504 DOI: 10.1016/j.pscychresns.2017.10.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 09/05/2017] [Accepted: 10/23/2017] [Indexed: 12/17/2022]
Abstract
Self-initiation of semantic encoding strategies is impoverished in schizophrenia and contributes to memory impairments. Recently, we observed that following a brief training, schizophrenia patients had the potential to increase the self-initiation of these strategies. In this study, we investigated the neural correlates underlying such memory improvements. Fifteen schizophrenia patients with deficits in self-initiation of semantic encoding strategies were enrolled in a Strategy for Semantic Association Memory (SESAME) training. Patients underwent a memory task in an fMRI scanner. Memory performance and brain activity during the task were measured pre- and post- training, and changes following training were assessed. We also investigated if structural preservation measured by the cortical thickness of the left dorsolateral prefrontal cortex (DLPFC) predicted memory improvement post-training. Memory training led to significant improvements in memory performance that were associated with increased activity in the left DLPFC, during a task in which patients needed to self-initiate semantic encoding strategies. Furthermore, patients with more cortical reserve in their left DLPFC showed greater memory improvement. Our findings provide evidence of neural malleability in the left DLPFC in schizophrenia using cognitive strategies training. Moreover, the brain-behavioural changes observed in schizophrenia provide hope that memory performance can be improved with a brief intervention.
Collapse
Affiliation(s)
- Synthia Guimond
- Department of psychology, McGill University, Montréal, Canada; Douglas Mental Health University Institute, Montréal, Canada; Department of psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Sophie Béland
- Douglas Mental Health University Institute, Montréal, Canada; Integrated Program in Neuroscience, McGill University, Montréal, Canada
| | - Martin Lepage
- Douglas Mental Health University Institute, Montréal, Canada; Department of psychiatry, McGill University, Montréal, Canada.
| |
Collapse
|
9
|
Grimes KM, Zanjani A, Zakzanis KK. Memory impairment and the mediating role of task difficulty in patients with schizophrenia. Psychiatry Clin Neurosci 2017; 71:600-611. [PMID: 28294468 DOI: 10.1111/pcn.12520] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 01/08/2017] [Accepted: 03/07/2017] [Indexed: 02/04/2023]
Abstract
Using meta-analytic methods, we sought to synthesize the research literature on memory impairment in schizophrenia. Additionally, we compared performances across memory measures to determine if task difficulty (e.g., effortful encoding and retrieval vs non-effortful encoding and retrieval) could account for variance across studies. Our primary measures of interest included the California Verbal Learning Test, Wechsler Memory Scale, Rey Auditory Verbal Learning Test, Hopkins Verbal Learning Test, Rey-Osterrieth Complex Figure Test, and the Benton Visual Retention Test. We searched for all studies that met inclusion criteria using PubMed, PsycINFO, Scholars Portal Search, and Google Scholar. Studies were included if: (i) they were published after 1980; (ii) healthy controls were compared to patients with schizophrenia; (iii) at least one of the noted measures of interest was employed in the primary study; and (iv) the primary study included data that could be transformed to point estimate effect sizes (i.e., Cohen's d). Cohen's d was calculated between patients and healthy controls, along with overall 95% confidence intervals. A two-tailed independent samples t-test was conducted to assess if performance differed on various paired subtests of the same domain. Large effect sizes were found for all memory tests. No significant differences were found between subtests. In conclusion, patients with schizophrenia experience significant verbal and visual memory impairments, which are not explained by task difficulty. Patients were unable to learn or retrieve more reliably despite repetition and cuing strategies, suggesting that memory impairment in the illness is not a function of task difficulty.
Collapse
Affiliation(s)
- Kyrsten M Grimes
- Department of Psychological Clinical Science, University of Toronto Scarborough, Toronto, Canada
| | - Anosha Zanjani
- Graduate School of Architecture, Columbia University, New York, USA
| | | |
Collapse
|
10
|
Guimond S, Hawco C, Lepage M. Prefrontal activity and impaired memory encoding strategies in schizophrenia. J Psychiatr Res 2017; 91:64-73. [PMID: 28325680 DOI: 10.1016/j.jpsychires.2017.02.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 12/21/2016] [Accepted: 02/28/2017] [Indexed: 02/02/2023]
Abstract
Schizophrenia patients have significant memory difficulties that have far-reaching implications in their daily life. These impairments are partly attributed to an inability to self-initiate effective memory encoding strategies, but its core neurobiological correlates remain unknown. The current study addresses this critical gap in our knowledge of episodic memory impairments in schizophrenia. Schizophrenia patients (n = 35) and healthy controls (n = 23) underwent a Semantic Encoding Memory Task (SEMT) during an fMRI scan. Brain activity was examined for conditions where participants were a) prompted to use semantic encoding strategies, or b) not prompted but required to self-initiate such strategies. When prompted to use semantic encoding strategies, schizophrenia patients exhibited similar recognition performance and brain activity as healthy controls. However, when required to self-initiate these strategies, patients had significant reduced recognition performance and brain activity in the left dorsolateral prefrontal cortex, as well as in the left temporal gyrus, left superior parietal lobule, and cerebellum. When patients were divided based on performance on the SEMT, the subgroup with more severe deficits in self-initiation also showed greater reduction in left dorsolateral prefrontal activity. These results suggest that impaired self-initiation of elaborative encoding strategies is a driving feature of memory deficits in schizophrenia. We also identified the neural correlates of impaired self-initiation of semantic encoding strategies, in which a failure to activate the left dorsolateral prefrontal cortex plays a key role. These findings provide important new targets in the development of novel treatments aiming to improve memory and ultimately patients' outcome.
Collapse
Affiliation(s)
- Synthia Guimond
- Department of Psychology, McGill University, Montréal, Canada; Douglas Mental Health University Institute, Montréal, Canada; Department of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Colin Hawco
- Campbell Family Mental Health Institute, Centre for Addiction and Mental Health, Toronto, Canada
| | - Martin Lepage
- Douglas Mental Health University Institute, Montréal, Canada; Department of Psychiatry, McGill University, Montréal, Canada.
| |
Collapse
|
11
|
Raffard S, Bortolon C, Burca M, Novara C, Gely-Nargeot MC, Capdevielle D, Van der Linden M. Self-imagination can enhance memory in individuals with schizophrenia. Cogn Neuropsychiatry 2016; 21:168-81. [PMID: 27022005 DOI: 10.1080/13546805.2016.1155438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Previous research has demonstrated that self-referential strategies can be applied to improve memory in various memory- impaired populations. However, little is known regarding the relative effectiveness of self-referential strategies in schizophrenia patients. The main aim of this study was to assess the effectiveness of a new self-referential strategy known as self- imagination (SI) on a free recall task. METHODS Twenty schizophrenia patients and 20 healthy controls intentionally encoded words under five instructions: superficial processing, semantic processing, semantic self-referential processing, episodic self-referential processing and semantic self- imagining. Other measures included depression, psychotic symptoms and cognitive measures. RESULTS We found a SI effect in memory as self- imagining resulted in better performance in memory retrieval than semantic and superficial encoding in schizophrenia patients. The memory boost for self-referenced information in comparison to semantic processing was not found for other self-referential strategies. In addition no relationship between clinical variables and free recall performances was found. In controls, the SI condition did not result in better performance. The three self-referential strategies yielded better free recall than both superficial and semantic encoding. CONCLUSIONS This study provides evidence of the clinical utility of self-imagining as a mnemonic strategy in schizophrenia patients.
Collapse
Affiliation(s)
- Stéphane Raffard
- a Epsylon Laboratory Dynamic of Human Abilities & Health Behaviors , University of Montpellier 3 , Montpellier , France.,b University Department of Adult Psychiatry , Hôpital de la Colombière, CHRU Montpellier, Montpellier-1 University , Montpellier , France
| | - Catherine Bortolon
- a Epsylon Laboratory Dynamic of Human Abilities & Health Behaviors , University of Montpellier 3 , Montpellier , France.,b University Department of Adult Psychiatry , Hôpital de la Colombière, CHRU Montpellier, Montpellier-1 University , Montpellier , France
| | - Mariana Burca
- a Epsylon Laboratory Dynamic of Human Abilities & Health Behaviors , University of Montpellier 3 , Montpellier , France
| | - Caroline Novara
- a Epsylon Laboratory Dynamic of Human Abilities & Health Behaviors , University of Montpellier 3 , Montpellier , France
| | - Marie-Christine Gely-Nargeot
- a Epsylon Laboratory Dynamic of Human Abilities & Health Behaviors , University of Montpellier 3 , Montpellier , France
| | - Delphine Capdevielle
- b University Department of Adult Psychiatry , Hôpital de la Colombière, CHRU Montpellier, Montpellier-1 University , Montpellier , France.,c INSERM U-1061 , Montpellier , France
| | - Martial Van der Linden
- d Department of Psychology - Cognition and Behavior , University of Liège , Liège , Belgium.,e Cognitive Psychopathology and Neuropsychology Unit, Faculty of Psychology , University of Geneva , Geneva , Switzerland
| |
Collapse
|
12
|
Witten JA, Thomas KGF, Westgarth-Taylor J, Joska JA. Executive Dyscontrol of Learning and Memory: Findings from a Clade C HIV-positive South African Sample. Clin Neuropsychol 2015; 29:956-84. [PMID: 26552492 DOI: 10.1080/13854046.2015.1108455] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Although pre-clinical work suggests there might be differences in neurovirulence across HIV-1 clades, few studies investigate neuropsychological deficits in the globally predominant clade C infection. The purpose of this study was to investigate verbal learning and memory performance in HIV-positive individuals in Cape Town, South Africa, where clade C is the most prevalent subtype of the virus. METHOD Using a case-control design, we recruited 53 isiXhosa-speaking, cART-naïve HIV-positive adults and 53 demographically matched HIV-negative controls. Participants were administered a comprehensive neuropsychological test battery. The test of interest was the Hopkins Verbal Learning Test-Revised (HVLT-R); previous studies have used that instrument to identify executive dyscontrol of verbal learning and memory processes in clade B HIV-positive participants. RESULTS HIV-positive participants showed only partial impairment on the HVLT-R's learning/memory components (e.g., they recalled significantly fewer words across learning trials, but displayed relatively intact performance on delayed recall trials). They also displayed little executive dyscontrol over encoding and retrieval processes (e.g., there were no significant between-group differences on measures of semantic or serial clustering). CONCLUSIONS Post-cART era studies suggest that verbal learning and memory performance is impaired in clade B samples, at least partially due to executive dyscontrol over encoding and retrieval processes. We found few such impairments in the current clade C sample. These preliminary findings suggest different CNS vulnerability across clades that would have implications for delineating clade-specific neuropathological and neurocognitive clinical features.
Collapse
Affiliation(s)
- Jade A Witten
- a ACSENT Laboratory, Department of Psychology , University of Cape Town , Cape Town , South Africa
| | - Kevin G F Thomas
- a ACSENT Laboratory, Department of Psychology , University of Cape Town , Cape Town , South Africa
| | | | - John A Joska
- b Department of Psychiatry and Mental Health , University of Cape Town , Cape Town , South Africa
| |
Collapse
|
13
|
Guimond S, Lepage M. Cognitive training of self-initiation of semantic encoding strategies in schizophrenia: A pilot study. Neuropsychol Rehabil 2015; 26:464-79. [DOI: 10.1080/09602011.2015.1045526] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
14
|
Paz-Alonso PM, Ghetti S, Ramsay I, Solomon M, Yoon J, Carter CS, Ragland JD. Semantic processes leading to true and false memory formation in schizophrenia. Schizophr Res 2013; 147:320-5. [PMID: 23623175 PMCID: PMC3679292 DOI: 10.1016/j.schres.2013.04.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 04/05/2013] [Accepted: 04/08/2013] [Indexed: 10/26/2022]
Abstract
Encoding semantic relationships between items on word lists (semantic processing) enhances true memories, but also increases memory distortions. Episodic memory impairments in schizophrenia (SZ) are strongly driven by failures to process semantic relations, but the exact nature of these relational semantic processing deficits is not well understood. Here, we used a false memory paradigm to investigate the impact of implicit and explicit semantic processing manipulations on episodic memory in SZ. Thirty SZ and 30 demographically matched healthy controls (HC) studied Deese/Roediger-McDermott (DRM) lists of semantically associated words. Half of the lists had strong implicit semantic associations and the remainder had low strength associations. Similarly, half of the lists were presented under "standard" instructions and the other half under explicit "relational processing" instructions. After study, participants performed recall and old/new recognition tests composed of targets, critical lures, and unrelated lures. HC exhibited higher true memories and better discriminability between true and false memory compared to SZ. High, versus low, associative strength increased false memory rates in both groups. However, explicit "relational processing" instructions positively improved true memory rates only in HC. Finally, true and false memory rates were associated with severity of disorganized and negative symptoms in SZ. These results suggest that reduced processing of semantic relationships during encoding in SZ may stem from an inability to implement explicit relational processing strategies rather than a fundamental deficit in the implicit activation and retrieval of word meanings from patients' semantic lexicon.
Collapse
Affiliation(s)
- Pedro M. Paz-Alonso
- Center for Mind and Brain, University of California at Davis, CA, USA,Basque Center on Cognition, Brain and Language (BCBL), Donostia-San Sebastián, Gipuzkoa, Spain,To whom correspondence should be addressed; Dr. Ragland, Department of Psychiatry and Imaging Research Center, University of California at Davis, 4701 X Street, Sacramento, CA 95817, USA. Tel: +1 916-734-5802, fax: +1 916-734-8750,
| | - Simona Ghetti
- Center for Mind and Brain, University of California at Davis, CA, USA,Department of Psychology, University of California at Davis, CA, USA
| | - Ian Ramsay
- Department of Psychiatry and Imaging Research Center, University of California at Davis, Sacramento, CA, USA
| | - Marjorie Solomon
- Department of Psychiatry and Imaging Research Center, University of California at Davis, Sacramento, CA, USA
| | - Jong Yoon
- Department of Psychiatry and Imaging Research Center, University of California at Davis, Sacramento, CA, USA
| | - Cameron S. Carter
- Department of Psychiatry and Imaging Research Center, University of California at Davis, Sacramento, CA, USA
| | - J. Daniel Ragland
- Department of Psychiatry and Imaging Research Center, University of California at Davis, Sacramento, CA, USA,To whom correspondence should be addressed; Dr. Ragland, Department of Psychiatry and Imaging Research Center, University of California at Davis, 4701 X Street, Sacramento, CA 95817, USA. Tel: +1 916-734-5802, fax: +1 916-734-8750,
| |
Collapse
|
15
|
Brébion G, Villalta-Gil V, Autonell J, Cervilla J, Dolz M, Foix A, Haro JM, Usall J, Vilaplana M, Ochoa S. Cognitive correlates of verbal memory and verbal fluency in schizophrenia, and differential effects of various clinical symptoms between male and female patients. Schizophr Res 2013; 147:81-85. [PMID: 23578747 DOI: 10.1016/j.schres.2013.03.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 02/27/2013] [Accepted: 03/15/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Impairment of higher cognitive functions in patients with schizophrenia might stem from perturbation of more basic functions, such as processing speed. Various clinical symptoms might affect cognitive efficiency as well. Notably, previous research has revealed the role of affective symptoms on memory performance in this population, and suggested sex-specific effects. METHOD We conducted a post-hoc analysis of an extensive neuropsychological study of 88 patients with schizophrenia. Regression analyses were conducted on verbal memory and verbal fluency data to investigate the contribution of semantic organisation and processing speed to performance. The role of negative and affective symptoms and of attention disorders in verbal memory and verbal fluency was investigated separately in male and female patients. RESULTS Semantic clustering contributed to verbal recall, and a measure of reading speed contributed to verbal recall as well as to phonological and semantic fluency. Negative symptoms affected verbal recall and verbal fluency in the male patients, whereas attention disorders affected these abilities in the female patients. Furthermore, depression affected verbal recall in women, whereas anxiety affected it in men. CONCLUSIONS These results confirm the association of processing speed with cognitive efficiency in patients with schizophrenia. They also confirm the previously observed sex-specific associations of depression and anxiety with memory performance in these patients, and suggest that negative symptoms and attention disorders likewise are related to cognitive efficiency differently in men and women.
Collapse
Affiliation(s)
- Gildas Brébion
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain.
| | - Victoria Villalta-Gil
- Fundació Sant Joan de Déu, Esplugues de Llobregat, and Departament de Psiquiatria i Medicina Legal, Facultat de Medicina, Universitat Autonoma de Barcelona, Bellaterra, Spain; CIBERSAM, Spain
| | - Jaume Autonell
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain
| | - Jorge Cervilla
- Unidad de Salud Mental, Hospital Universitario San Cecilio, Granada, Spain; CIBERSAM, Spain
| | - Montserrat Dolz
- Hospital Materno Infantil, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain
| | - Alexandrina Foix
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain
| | - Josep Maria Haro
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain
| | - Judith Usall
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain
| | - Miriam Vilaplana
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain
| | - Susana Ochoa
- Unitat de Recerca, Parc Sanitari Sant Joan de Déu, Barcelona, Spain; CIBERSAM, Spain
| |
Collapse
|
16
|
Distinct episodic verbal memory profiles in schizophrenia. Behav Sci (Basel) 2013; 3:192-205. [PMID: 25379234 PMCID: PMC4217624 DOI: 10.3390/bs3020192] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 03/25/2013] [Accepted: 03/25/2013] [Indexed: 11/16/2022] Open
Abstract
According to some authors, episodic memory impairment may be a feature shared by all schizophrenic patients, whereas others argue in favor of the mnesic heterogeneity. Our aims were to determine whether patients can be grouped based on according to their mnesic performances. The California Verbal Learning Test (CVLT), an episodic verbal learning test, was compared in 61 schizophrenic patients and 61 matched healthy subjects. The 32 indices were calculated using CVLT Scoring Software. This process allowed us to describe patients' episodic processes in detail (encoding, storage, retrieval). We isolated one group with normative data, another showed impairment of both encoding and retrieval processes, and in the last one, only encoding process was impaired. As schizophrenia is heterogeneous with regard to episodic memory, impairments should not be considered as a common core to the various forms of the illness and it would be fruitful to systematically assess episodic processes in detail to take into account individual abilities and challenges.
Collapse
|
17
|
Toglia JP, Rodger SA, Polatajko HJ. Anatomy of Cognitive Strategies: A Therapist's Primer for Enabling Occupational Performance. Can J Occup Ther 2012; 79:225-36. [DOI: 10.2182/cjot.2012.79.4.4] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Background. Promoting effective strategy use is an integral part of enabling occupational performance; however, there are variations in how strategies are defined, discussed, used, and applied in occupational therapy practice.Purpose. Focusing on cognitive strategies, in this paper, we define and describe strategies and their types and divide the concept of strategies into two dimensions: strategy attributes and strategy use. A comprehensive framework for each dimension (attribute and use) is proposed as a clinical reasoning guide as well as a foundation for future research. The frameworks are designed to reduce ambiguity, deepen understanding, and serve as clinical reasoning guides assisting therapists in specifying, describing, and observing cognitive strategies during occupational performance.Key Issues. We argue that there is a need for therapists to use consistent terminology and to be able to systematically select cognitive strategies and evaluate their use.Implications. The proposed strategy frameworks provide clinical guides for systematic analysis and selection of cognitive strategies as well as for observing components of strategy use during clients' occupational performance. We suggest the need for greater specification and description of strategies during intervention and highlight directions for future research.
Collapse
|
18
|
Faget-Agius C, Boyer L, Padovani R, Richieri R, Mundler O, Lançon C, Guedj E. Schizophrenia with preserved insight is associated with increased perfusion of the precuneus. J Psychiatry Neurosci 2012; 37:297-304. [PMID: 22498076 PMCID: PMC3447128 DOI: 10.1503/jpn.110125] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 01/02/2012] [Accepted: 02/10/2012] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Preserved insight into illness has been suggested to be predictive of outcome in patients with schizophrenia. We aimed to investigate the functional substrate underlying preserved insight in these patients. METHODS We recruited patients with paranoid schizophrenia and healthy controls matched for age and sex. Patients were grouped according to preserved or impaired insight into illness using the Scale to assess Unawareness of Mental Disorder (SUMD). Whole-brain technetium-99m ethyl cysteinate dimer single photon emission computed tomography regional cerebral blood flow was compared at the voxel level between the 2 groups using a statistical parametric map (voxel-level significance of p < 0.001, uncorrected; cluster level significance of p < 0.05, uncorrected). RESULTS We enrolled 31 right-handed patients with schizophrenia and 18 controls in our study. Twenty-one (67.7%) patients had preserved insight. The 2 groups did not differ significantly in demographic and clinical characteristics or in treatment. Compared with controls, the whole group of patients showed bilateral frontotemporal hypoperfusions, with no statistical difference between patients with preserved or impaired insight for these areas. Patients with preserved insight showed significantly increased perfusion of the bilateral precuneus relative to those with impaired insight. LIMITATIONS Patients with subtypes other than paranoid schizophrenia have to be investigated to assess whether involvement of the precuneus in patients with preserved insight can be identified across the full spectrum of subtypes and symptoms of schizophrenia. Moreover, our study concerned only the central dimension (awareness of mental disorder) of 1 scale (SUMD); other dimensions of insight could be studied. CONCLUSION Our results show that schizophrenia with preserved insight is associated with greater perfusion of the precuneus, a brain area known to be involved in self- consciousness, suggesting a compensatory mechanism of fronto-temporal impairment.
Collapse
Affiliation(s)
| | | | - Romain Padovani
- Faget-Agius, Boyer, Padovani, Richieri, Lançon — Aix-Marseille University, Research Unit EA 3279, Marseille; Faget-Agius, Padovani, Richieri, Lançon — Hôpital Sainte Marguerite, Département de psychiatrie, Marseille; Boyer — Hôpital de la Timone, Département de santé publique, Marseille; Mundler, Guedj — Hôpital de la Timone, Service Central de Biophysique et Médecine Nucléaire, Aix-Marseille University and European Centre for Research on Medical Imaging (CERIMED), Marseille; Guedj — Aix-Marseille University and the Centre national de la recherche scientifique, Institut de Neurosciences de la Timone (INT), UMR CNRS 7289, Marseille, France
| | - Raphaëlle Richieri
- Faget-Agius, Boyer, Padovani, Richieri, Lançon — Aix-Marseille University, Research Unit EA 3279, Marseille; Faget-Agius, Padovani, Richieri, Lançon — Hôpital Sainte Marguerite, Département de psychiatrie, Marseille; Boyer — Hôpital de la Timone, Département de santé publique, Marseille; Mundler, Guedj — Hôpital de la Timone, Service Central de Biophysique et Médecine Nucléaire, Aix-Marseille University and European Centre for Research on Medical Imaging (CERIMED), Marseille; Guedj — Aix-Marseille University and the Centre national de la recherche scientifique, Institut de Neurosciences de la Timone (INT), UMR CNRS 7289, Marseille, France
| | - Olivier Mundler
- Faget-Agius, Boyer, Padovani, Richieri, Lançon — Aix-Marseille University, Research Unit EA 3279, Marseille; Faget-Agius, Padovani, Richieri, Lançon — Hôpital Sainte Marguerite, Département de psychiatrie, Marseille; Boyer — Hôpital de la Timone, Département de santé publique, Marseille; Mundler, Guedj — Hôpital de la Timone, Service Central de Biophysique et Médecine Nucléaire, Aix-Marseille University and European Centre for Research on Medical Imaging (CERIMED), Marseille; Guedj — Aix-Marseille University and the Centre national de la recherche scientifique, Institut de Neurosciences de la Timone (INT), UMR CNRS 7289, Marseille, France
| | - Christophe Lançon
- Faget-Agius, Boyer, Padovani, Richieri, Lançon — Aix-Marseille University, Research Unit EA 3279, Marseille; Faget-Agius, Padovani, Richieri, Lançon — Hôpital Sainte Marguerite, Département de psychiatrie, Marseille; Boyer — Hôpital de la Timone, Département de santé publique, Marseille; Mundler, Guedj — Hôpital de la Timone, Service Central de Biophysique et Médecine Nucléaire, Aix-Marseille University and European Centre for Research on Medical Imaging (CERIMED), Marseille; Guedj — Aix-Marseille University and the Centre national de la recherche scientifique, Institut de Neurosciences de la Timone (INT), UMR CNRS 7289, Marseille, France
| | - Eric Guedj
- Faget-Agius, Boyer, Padovani, Richieri, Lançon — Aix-Marseille University, Research Unit EA 3279, Marseille; Faget-Agius, Padovani, Richieri, Lançon — Hôpital Sainte Marguerite, Département de psychiatrie, Marseille; Boyer — Hôpital de la Timone, Département de santé publique, Marseille; Mundler, Guedj — Hôpital de la Timone, Service Central de Biophysique et Médecine Nucléaire, Aix-Marseille University and European Centre for Research on Medical Imaging (CERIMED), Marseille; Guedj — Aix-Marseille University and the Centre national de la recherche scientifique, Institut de Neurosciences de la Timone (INT), UMR CNRS 7289, Marseille, France
| |
Collapse
|
19
|
Partizipationsverhalten schizophren erkrankter Patienten in Psychoedukationsgruppen. PSYCHOTHERAPEUT 2012. [DOI: 10.1007/s00278-012-0929-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
20
|
The relationship of verbal learning and verbal fluency with written story production: implications for social functioning in first episode psychosis. Schizophr Res 2012; 138:212-7. [PMID: 22551682 DOI: 10.1016/j.schres.2012.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 03/21/2012] [Accepted: 04/02/2012] [Indexed: 11/20/2022]
Abstract
BACKGROUND Impairments in speech, communication and Theory of Mind are common in schizophrenia, and compromise social functioning. Some of these impairments may already be present pre-morbidly. This study aimed to investigate verbal functions in relation to written story production and social functioning in people experiencing a first episode of psychosis (FEP). METHOD Two groups of participants: FEP (N=31) and healthy controls (HC, N=31), completed measures of clinical status, social functioning, a series of neuropsychological tests targeting verbal functioning, and the "Frog Where Are You?" story production task. RESULTS Story results showed reduced efficiency (words per minute) and self-monitoring (corrections per minute) for FEP compared with HC groups (p<0.01). The FEP group performed significantly poorer than the HC group on most indices of verbal learning and verbal fluency. Story production was positively associated with verbal learning and verbal fluency for the FEP group only (p<0.05). Premorbid function decline was associated with impaired verbal learning and memory for the FEP group. CONCLUSION Individuals with FEP show a childhood history of reduced social and academic performance that is associated with skills essential for daily social interactions, as evidenced by the findings for story production, verbal learning and verbal fluency.
Collapse
|
21
|
Pitschel-Walz G, Gsottschneider A, Froböse T, Kraemer S, Bäuml J, Jahn T. Neuropsychologie der Psychoedukation bei Schizophrenie. DER NERVENARZT 2011; 84:79-90. [DOI: 10.1007/s00115-011-3383-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|