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Schizophrenia Research. Cognition

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https://read.qxmd.com/read/30705832/limited-changes-in-activities-of-daily-life-performance-ability-among-people-with-schizophrenia-at-clinical-settings-and-the-factors-moderating-the-changes
#1
Helen Ayres, Hanh Ngo, Alexander Panickacheril John
Background: Impaired community functioning and functional ability are common among people with schizophrenia spectrum disorders (SSD). However, changes occurring in activities of daily life (ADL) ability through interventions provided at clinical settings have not been systematically examined in this population. Methods: We retrospectively collated and analysed changes in ADL ability between admissions and discharges, measured utilising the Assessment of Motor and Process Skills (AMPS), among 72 people with SSD at a public inpatient treatment and rehabilitation facility in Western Australia...
June 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30671352/modified-work-behavior-inventory-assessment-evaluation-of-psychometric-properties
#2
Jason E Peer, Joanna E Strong Kinnaman, Wendy N Tenhula
The Work Behavior Inventory (WBI) is a widely used and validated assessment of work functioning in people with schizophrenia. WBI ratings are based on workplace observation and interview with work supervisors. Workplace observation may not be acceptable in all employment settings. A WBI assessment based only on supervisor interview may offer more utility. The current study evaluated the psychometric properties of a modified WBI among individuals with schizophrenia participating in VA vocational rehabilitation programs - similar to the original WBI validation study...
June 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30671351/neurological-soft-signs-nss-and-cognitive-impairment-in-chronic-schizophrenia
#3
Christina J Herold, Céline Z Duval, Marc M Lässer, Johannes Schröder
Recent studies indicate that neurological soft signs (NSS) in schizophrenia are associated with generalized cognitive impairments rather than changes in specific neuropsychological domains. However, the majority of studies solely included first-episode patients or patients with a remitting course and did not consider age, course, education or severity of global cognitive deficits as potential confounding variables. Therefore, we examined NSS with respect to cognitive deficits in chronic schizophrenia, i.e. patients who are particularly vulnerable to both, NSS and cognitive impairments...
June 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30581766/cannabis-acute-use-impacts-symptoms-and-functionality-in-a-cohort-of-antipsychotic-na%C3%A3-ve-first-episode-of-psychosis-individuals
#4
Luccas S Coutinho, Hianna Honorato, Cinthia H Higuchi, Daniel A Cavalcante, Sintia Belangeiro, Mariane Noto, Rodrigo A Bressan, Quirino Cordeiro, Cristiano Noto, Ary Gadelha
Introduction: Cannabis use increases the risk of developing psychosis, and subjects with psychosis are more likely to use cannabis. However, studies on the influence of cannabis on psychotic dimensions, response to treatment, and functional outcomes showed conflicting results. Such heterogeneity may be due the inclusion of patients who were already under treatment, and lack of specificity in evaluations. We investigated whether cannabis use yields distinct symptom profiles and functionality in a cohort of antipsychotic-naïve patients at first episode of psychosis (FEP)...
June 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30581765/the-role-of-childhood-trauma-in-cognitive-performance-in-schizophrenia-and-bipolar-disorder-a-systematic-review
#5
REVIEW
Maria R Dauvermann, Gary Donohoe
Childhood trauma (CT) has repeatedly been associated with cognitive deficits in patients with psychosis but many inconsistencies have been reported so that the nature of the relationship remains unclear. The purpose of this review was to better characterize the contribution of CT to cognitive deficits by considering the type, severity and frequency of childhood traumatic events and their relationships with psychosis at all stages. Relevant studies were identified via electronic and manual literature searches and included original studies that investigated the relationship between CT and higher cognitive performance or social cognitive performance in patients with schizophrenia, bipolar disorder and psychosis at all stages of the illness stages (i...
June 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30534527/from-under-to-over-social-cognition-in-schizophrenia-is-there-distinct-profiles-of-impairments-according-to-negative-and-positive-symptoms
#6
Elodie Peyroux, Zelda Prost, Charlotte Danset-Alexandre, Lindsay Brenugat-Herne, Isabelle Carteau-Martin, Baptiste Gaudelus, Célia Jantac, David Attali, Isabelle Amado, Jérôme Graux, Emmanuelle Houy-Durand, Julien Plasse, Nicolas Franck
Interactions between social cognition and symptoms of schizophrenia have been investigated, but mostly component by component. Here we tested the assumption that two categories of deficits exist depending on clinical profiles, one corresponding to a defect in social cognition - "under-social cognition" - and one corresponding to excessive attributions leading to social cognitive impairments - "over-social cognition". To conduct the investigation, we performed a Hierarchical Clustering Analysis using positive and negative symptoms in seventy patients with schizophrenia and we compared the clusters obtained to a group of healthy controls on social cognitive measures...
March 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30450286/cognition-in-schizophrenia-improves-with-treatment-of-severe-obstructive-sleep-apnoea-a-pilot-study
#7
Hannah Myles, Nicholas Myles, Ching Li Chai Coetzer, Robert Adams, Madhu Chandratilleke, Dennis Liu, Jeremy Mercer, Andrew Vakulin, Andrew Vincent, Gary Wittert, Cherrie Galletly
Previous studies have shown that people with schizophrenia have high rates of Obstructive Sleep Apnoea (OSA). Despite this, intervention studies to treat OSA in this population have not been undertaken. The ASSET (Assessing Sleep in Schizophrenia and Evaluating Treatment) pilot study investigated Continuous Positive Airway Pressure (CPAP) treatment of severe OSA in participants recruited from a clozapine clinic in Adelaide. Participants with severe untreated OSA (Apnoea-Hypopnoea Index (AHI) > 30), were provided with CPAP treatment, and assessed at baseline and six months across the following domains: physical health, quality of sleep, sleepiness, cognition, psychiatric symptoms and CPAP adherence...
March 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30310770/association-between-lower-estimated-premorbid-intelligence-quotient-and-smoking-behavior-in-patients-with-schizophrenia
#8
Shinsuke Hidese, Junko Matsuo, Ikki Ishida, Moeko Hiraishi, Toshiya Teraishi, Miho Ota, Kotaro Hattori, Hiroshi Kunugi
Aim: We aimed to investigate the involvement of premorbid intelligence quotient in higher prevalence of smoking in patients with schizophrenia. Methods: Participants included 190 patients with schizophrenia (mean ± standard deviation age: 37.7 ± 10.8 years; 88 males and 102 females) and 312 healthy individuals (mean ± standard deviation age: 38.1 ± 13.8; 166 males and 146 females), matched for age, sex, and ethnicity (Japanese). Premorbid intelligence quotient was estimated using the Japanese Adult Reading Test and distress symptoms were assessed using the Hopkins Symptom Check List...
March 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30302317/the-impact-of-schizophrenia-and-intelligence-on-the-relationship-between-age-and-brain-volume
#9
Maria H Jensen, Nikolaj Bak, Egill Rostrup, Mette Ø Nielsen, Christos Pantelis, Birte Y Glenthøj, Bjørn H Ebdrup, Birgitte Fagerlund
Age has been shown to have an impact on both grey (GM) and white matter (WM) volume, with a steeper slope of age-related decline in schizophrenia compared to healthy controls. In schizophrenia, the relation between age and brain volume is further complicated by factors such as lower intelligence, antipsychotic medication, and cannabis use, all of which have been shown to have independent effects on brain volume. In a study of first-episode, antipsychotic-naïve schizophrenia patients (N = 54) and healthy controls (N = 56), we examined the effects of age on whole brain measures of GM and WM volume, and whether these relationships were moderated by schizophrenia and intelligence (IQ)...
March 2019: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30167381/social-functioning-impairments-in-schizotypy-when-social-cognition-and-neurocognition-are-not-impaired
#10
Maral Aghvinian, Mark J Sergi
The present study examined the social, cognitive, and emotional functioning of persons with schizotypy. Over 2000 undergraduate students were screened for schizotypy with the Schizotypal Personality Questionnaire - Brief over two consecutive semesters. Ninety-two persons with high schizotypy and 22 persons with low schizotypy completed measures of social functioning (Social Adjustment Scale, Social Functioning Scale, MOS Social Support Survey), working memory (Paced Auditory Serial Addition Test, Digit Span, Letter-Number Sequencing, Corsi Block Tapping Test) and empathy (Interpersonal Reactivity Index, Empathy Quotient)...
December 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30112288/psychiatric-symptoms-and-related-dysfunction-in-a-general-population-sample
#11
Lauren Smith, Abraham Reichenberg, Jonathan Rabinowitz, Stephen Z Levine, Eva Velthorst
Background: Along with the key clinical features of major psychiatric disorders such as psychosis, mania, and depression, these disorders are also associated with cognitive, social, and functional deficits. A growing body of evidence suggests that these disorders exist at the extreme end of a continuum of symptoms rather than as binary entities, so it is plausible that the associated cognitive, social, and functional deficits assume a similar pattern. Consistent with this approach, we sought to determine whether adults in the general population with psychiatric symptoms also demonstrate milder forms of the cognitive, social, and functional deficits that are often associated with the psychiatric disorders...
December 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30105212/superior-memory-performance-in-healthy-individuals-with-subclinical-psychotic-symptoms-but-without-genetic-load-for-schizophrenia
#12
G Gagnon, S Kumar, J-R Maltais, A N Voineskos, B H Mulsant, T K Rajji
No abstract text is available yet for this article.
September 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30105211/positive-symptoms-and-time-perception-in-schizophrenia-a-meta-analysis
#13
Natsuki Ueda, Kazushi Maruo, Tomiki Sumiyoshi
Positive symptoms of schizophrenia may be related to distortions in time perception. To examine this issue, we conducted a meta-analysis to determine whether positive symptoms are associated with deficits in time processing performance. MEDLINE and Web of Science were searched from January 1980 through March 2017, and all related articles and their references were scrutinized to find relevant studies. Studies were selected if they included participants with a diagnosis of schizophrenia, and reported data from behavioral measures of interval timing (e...
September 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/30069436/the-role-of-functional-capacity-in-the-prediction-of-occupational-status-in-schizophrenia
#14
Lucas M Mantovani, João V Salgado
No abstract text is available yet for this article.
September 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/29928600/increased-social-cognitive-bias-in-subclinical-paranoia
#15
Hans S Klein, Skylar Kelsven, Amy E Pinkham
No abstract text is available yet for this article.
June 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/29928599/the-impact-of-reward-on-attention-in-schizophrenia
#16
Sonia Bansal, Benjamin M Robinson, Joy J Geng, Carly J Leonard, Britta Hahn, Steven J Luck, James M Gold
Traditionally, attention was thought to be directed by either top-down goals or bottom-up salience. Recent studies have shown that the reward history of a stimulus feature also acts as a powerful attentional cue. This is particularly relevant in schizophrenia, which is characterized by motivational and attentional deficits. Here, we examine the impact of reward on selective attention. Forty-eight people with schizophrenia (PSZ) and 34 non-psychiatric control subject (NCS) discriminated the location of a target dot appearing inside a left circle or right circle...
June 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/29928598/the-relationship-between-clinical-insight-and-cognitive-and-affective-empathy-in-schizophrenia
#17
Mia Atoui, Fatima El Jamil, Joseph El Khoury, Mark Doumit, Nathalie Syriani, Munir Khani, Ziad Nahas
Background: Schizophrenia is often associated with poor clinical insight (unawareness of mental illness and its symptoms) and deficits in empathy, which are important for social functioning. Cognitive empathy has been linked to clinical insight while affective empathy and its role in insight and pathology have received mixed evidence. Methods: Instruments assessing symptomatology (Positive and Negative Syndrome Scale; PANSS), clinical insight (Scales to assess awareness of mental disorders; SUMD), and cognitive and affective empathy were administered to 22 participants with first episode and chronic schizophrenia and 21 healthy controls...
June 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/29928597/effect-of-cognitive-function-on-jumping-to-conclusion-in-patients-with-schizophrenia
#18
Tomoya Takeda, Masahito Nakataki, Masashi Ohta, Sayo Hamatani, Kanae Matsuura, Tetsuro Ohmori
The "jumping to conclusion" (JTC) bias is related to the formation and maintenance of delusions. Higher JTC bias can be based on both neurocognitive dysfunction and social cognitive dysfunction in patients with schizophrenia. The aim of this study was to assess the relationship between JTC bias, neurocognition, and social cognition in patients with schizophrenia. A total of 22 patients with schizophrenia and 21 controls participated in this study. Neurocognition and social cognition were assessed using the Brief Assessment of Cognition in Schizophrenia (BACS) and Social Cognition Screening Questionnaire (SCSQ), respectively...
June 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/29928596/predictive-timing-disturbance-is-a-precise-marker-of-schizophrenia
#19
Valentina Ciullo, Federica Piras, Daniela Vecchio, Nerisa Banaj, Jennifer T Coull, Gianfranco Spalletta
Timing disturbances have being proposed as a key component of schizophrenia pathogenesis. However, the contribution of cognitive impairment to such disorders has not been clarified. Here, we investigated duration estimation and predictive timing in 30 patients with DSM-5 diagnosis of schizophrenia (SZ) compared to 30 healthy controls (HC). Duration estimation was examined in a temporal and colour discrimination task, fully controlled for working memory (WM) and attention requirements, and by more traditional temporal production and temporal bisection tasks...
June 2018: Schizophrenia Research. Cognition
https://read.qxmd.com/read/29928595/long-term-treatment-with-clozapine-and-verbal-memory-performance-in-schizophrenia
#20
Letícia S Czepielewski, Marina D B Londero, Mathias H de Sousa, Carolina P Perin, Helena C Maldonado, Felipe C A Claudino, Clarissa S Gama
Clozapine is more efficacious than first-generation antipsychotics for positive and negative symptoms, although it is related with serious adverse effects. Because of this profile, it could also have an impact on cognition. Therefore, we evaluated learning ability of 31 treatment-resistant individuals with SZ using clozapine uninterruptedly for 18.23 ± 4.71 years and 26 non-treatment-resistant using other antipsychotics that never used clozapine. Long-term treatment with clozapine did not improve verbal learning ability better than other antipsychotics...
June 2018: Schizophrenia Research. Cognition
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