keyword
MENU ▼
Read by QxMD icon Read
search

Cognitive impairment associated with schizophrenia

keyword
https://www.readbyqxmd.com/read/28214564/downregulation-of-gna13-erk-network-in-prefrontal-cortex-of-schizophrenia-brain-identified-by-combined-focused-and-targeted-quantitative-proteomics
#1
Mio Hirayama-Kurogi, Yohei Takizawa, Yasuto Kunii, Junya Matsumoto, Akira Wada, Mizuki Hino, Hiroyasu Akatsu, Yoshio Hashizume, Sakon Yamamoto, Takeshi Kondo, Shingo Ito, Masanori Tachikawa, Shin-Ichi Niwa, Hirooki Yabe, Tetsuya Terasaki, Mitsutoshi Setou, Sumio Ohtsuki
: Schizophrenia is a disabling mental illness associated with dysfunction of the prefrontal cortex, which affects cognition and emotion. The purpose of the present study was to identify altered molecular networks in the prefrontal cortex of schizophrenia patients by comparing protein expression levels in autopsied brains of patients and controls, using a combination of targeted and focused quantitative proteomics. We selected 125 molecules possibly related to schizophrenia for quantification by knowledge-based targeted proteomics...
February 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28212171/ability-based-emotional-intelligence-in-schizophrenia
#2
Beatrice Frajo-Apor, Alex Hofer
PURPOSE OF REVIEW: As one part of social cognition, emotional intelligence is a controversially discussed construct. Although well founded critique on the conceptualization of emotional intelligence has emerged over the last years, studies about emotional intelligence - especially the ability-based approach by Mayer and Salovey - can persistently be found in schizophrenia research. RECENT FINDINGS: Studies published between October 2015 and October 2016 were included in this review...
February 15, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28208070/association-of-medial-prefrontal-resting-state-functional-connectivity-and-metacognitive-capacity-in-early-phase-psychosis
#3
Michael M Francis, Tom A Hummer, Bethany L Leonhardt, Jenifer L Vohs, Matt G Yung, Nicole F Mehdiyoun, Paul H Lysaker, Alan Breier
Metacognition refers to a range of cognitive processes that allow one to form complex ideas of self and others and to use this information to navigate psychosocial challenges. Several studies in both early-phase and prolonged schizophrenia have demonstrated not only that significant deficits in metacognitive ability are present, but importantly that they are associated with significant functional impairment and decreased quality of life. In spite of the importance of metacognitive impairment in schizophrenia, relatively little is known about the biological substrates that may contribute to this dysfunction...
February 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28203529/reality-monitoring-impairment-in-schizophrenia-reflects-specific-prefrontal-cortex-dysfunction
#4
Jane R Garrison, Emilio Fernandez-Egea, Rashid Zaman, Mark Agius, Jon S Simons
Reality monitoring impairment is often reported in schizophrenia but the neural basis of this deficit is poorly understood. Difficulties with reality monitoring could be attributable to the same pattern of neural dysfunction as other cognitive deficits that characterize schizophrenia, or might instead represent a separable and dissociable impairment. This question was addressed through direct comparison of behavioral performance and neural activity associated with reality monitoring and working memory in patients with schizophrenia and matched healthy controls...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28187335/insight-into-illness-and-its-relationship-to-illness-severity-cognition-and-estimated-antipsychotic-dopamine-receptor-occupancy-in-schizophrenia-an-antipsychotic-dose-reduction-study
#5
Philip Gerretsen, Hiroyoshi Takeuchi, Miracle Ozzoude, Ariel Graff-Guerrero, Hiroyuki Uchida
Little is known about the influence of D2 receptor occupancy on impaired insight into illness (III)-a core feature of schizophrenia. III is associated with illness severity and cognitive dysfunction. Comparably, supratherapeutic D2 receptor occupancy can impair cognition. However, it is unclear how illness severity, cognition, and D2 receptor occupancy interact to influence III in schizophrenia. The aim of this study was to explore the influence of antipsychotic dose reduction on the relationships of illness severity and cognition to III...
February 1, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28182471/efficacy-of-cognitive-rehabilitation-using-computer-software-with-individuals-living-with-schizophrenia-a-randomized-controlled-trial-in-japan
#6
Kazuhiko Iwata, Yasuhiro Matsuda, Sayaka Sato, Shunichi Furukawa, Yukako Watanabe, Norifumi Hatsuse, Emi Ikebuchi
OBJECTIVE: Cognitive impairment is common in schizophrenia, and is associated with poor psychosocial functioning. Previous studies had inconsistently shown improvement in cognitive functions with cognitive remediation therapy. This study examined whether cognitive remediation is effective in improving both cognitive and social functions in schizophrenia in outpatient settings that provide learning-based psychiatric rehabilitation. This study is the first randomized controlled trial of cognitive remediation in Japan...
February 9, 2017: Psychiatric Rehabilitation Journal
https://www.readbyqxmd.com/read/28169089/meta-analysis-of-functional-magnetic-resonance-imaging-studies-of-timing-and-cognitive-control-in-schizophrenia-and-bipolar-disorder-evidence-of-a-primary-time-deficit
#7
REVIEW
Irene Alústiza, Joaquim Radua, Marta Pla, Raquel Martin, Felipe Ortuño
Schizophrenia (SZ) and Bipolar Disorder (BD) are associated with deficits in both timing and cognitive control functions. However, the underlying neurological dysfunctions remain poorly understood. The main goal of this study was to identify brain structures activated both by increases in cognitive activity and during timing tasks in patients with SZ and BD relative to controls. We conducted two signed differential mapping (SDM) meta-analyses of functional magnetic resonance imaging studies assessing the brain response to increasing levels of cognitive difficulty: one concerned SZ, and the other BD patients...
February 3, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28168960/sex-specific-neurodevelopmental-programming-by-placental-insulin-receptors-on-stress-reactivity-and-sensorimotor-gating
#8
Stefanie L Bronson, Jennifer C Chan, Tracy L Bale
BACKGROUND: Diabetes, obesity, and overweight are prevalent pregnancy complications that predispose offspring to neurodevelopmental disorders, including autism, attention-deficit/hyperactivity disorder, and schizophrenia. Although male individuals are three to four times more likely than female individuals to develop these disorders, the mechanisms driving the sex specificity of disease vulnerability remain unclear. Because defective placental insulin receptor (InsR) signaling is a hallmark of pregnancy metabolic dysfunction, we hypothesized that it may be an important contributor and novel mechanistic link to sex-specific neurodevelopmental changes underlying disease risk...
December 30, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/28167837/neural-mechanisms-of-mismatch-negativity-dysfunction-in-schizophrenia
#9
M Lee, P Sehatpour, M J Hoptman, P Lakatos, E C Dias, J T Kantrowitz, A M Martinez, D C Javitt
Schizophrenia is associated with cognitive deficits that reflect impaired cortical information processing. Mismatch negativity (MMN) indexes pre-attentive information processing dysfunction at the level of primary auditory cortex. This study investigates mechanisms underlying MMN impairments in schizophrenia using event-related potential, event-related spectral decomposition (ERSP) and resting state functional connectivity (rsfcMRI) approaches. For this study, MMN data to frequency, intensity and duration-deviants were analyzed from 69 schizophrenia patients and 38 healthy controls...
February 7, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28143767/striatal-dopamine-d1-receptor-suppression-impairs-reward-associative-learning
#10
Kerin K Higa, Jared W Young, Baohu Ji, David E Nichols, Mark A Geyer, Xianjin Zhou
Dopamine (DA) is required for reinforcement learning. Hence, disruptions in DA signaling may contribute to the learning deficits associated with psychiatric disorders. The DA D1 receptor (D1R) has been linked to learning and is a target for cognitive/motivational enhancement in patients with schizophrenia. Separating the striatal D1R contribution to learning vs. motivation, however, has been challenging. We suppressed striatal D1R expression in mice using a D1R-targeting short hairpin RNA (shRNA), delivered locally to the striatum via an adeno-associated virus (AAV)...
January 29, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28131010/electrophysiological-basis-of-reading-related-phonological-impairment-in-chinese-speakers-with-schizophrenia-an-erp-study
#11
Jiuju Wang, Qi Liu, Taeko N Wydell, Jinmin Liao, Fang Wang, Wenxiang Quan, Ju Tian, Pengfei Wang, Jin Liu, Wentian Dong
It has been reported in alphabetic languages that individuals with schizophrenia showed language-related cognitive impairments including phonological deficits, which were in turn associated with clinical symptoms such as auditory hallucinations and thought disorders. To date, however, the phonological deficits involved in schizophrenia in Chinese and its neural basis have not been well established. In order to establish such a relationship we conducted a behavioral study using lexical tone judgment and digit span tasks as well as an event-related potential (ERP) study with an auditory oddball paradigm, in particular, for P300 effects, the event-related brain potential (ERP) index of discrimination...
January 11, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28126626/language-context-processing-deficits-in-schizophrenia-the-role-of-attentional-engagement
#12
Megan A Boudewyn, Cameron S Carter, Debra L Long, Matthew J Traxler, Tyler A Lesh, George R Mangun, Tamara Y Swaab
Individuals with schizophrenia exhibit problems in language comprehension that are most evident during discourse processing. We hypothesized that deficits in cognitive control contribute to these comprehension deficits during discourse processing, and investigated the underlying cognitive-neural mechanisms using EEG (alpha power) and ERPs (N400). N400 amplitudes to globally supported or unsupported target words near the end of stories were used to index sensitivity to previous context. ERPs showed reduced sensitivity to context in patients versus controls...
February 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28126482/serum-levels-of-interleukin-33-and-its-soluble-form-receptor-sst2-are-associated-with-cognitive-performance-in-patients-with-schizophrenia
#13
Salvina Maria de Campos-Carli, Aline Silva Miranda, Ingrid Caroline Silva Dias, Amanda de Oliveira, Breno Fiuza Cruz, Érica Leandro Marciano Vieira, Natalia Pessoa Rocha, Izabela Guimarães Barbosa, João Vinícius Salgado, Antônio Lúcio Teixeira
OBJECTIVE: Changes in immune system have been reported in schizophrenia. This study aimed to evaluate the involvement of IL-33, a member of the IL-1 cytokine family, in schizophrenia and its association with cognitive performance in these patients. METHODS: Forty patients with chronic schizophrenia and 40 healthy subjects participated in the study. Serum levels of IL-33 and sST2 (soluble form of the IL-33 receptor) were measured using enzyme-linked immunosorbent assay (ELISA)...
January 14, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28117515/multimodal-investigation-of-triple-network-connectivity-in-patients-with-22q11ds-and-association-with-executive-functions
#14
Maria C Padula, Marie Schaer, Elisa Scariati, Johanna Maeder, Maude Schneider, Stephan Eliez
Large-scale brain networks play a prominent role in cognitive abilities and their activity is impaired in psychiatric disorders, such as schizophrenia. Patients with 22q11.2 deletion syndrome (22q11DS) are at high risk of developing schizophrenia and present similar cognitive impairments, including executive functions deficits. Thus, 22q11DS represents a model for the study of neural biomarkers associated with schizophrenia. In this study, we investigated structural and functional connectivity within and between the Default Mode (DMN), the Central Executive (CEN), and the Saliency network (SN) in 22q11DS using resting-state fMRI and DTI...
January 24, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28104564/evidence-that-communication-impairment-in-schizophrenia-is-associated-with-generalized-poor-task-performance
#15
Anne M Merrill, Nicole R Karcher, David C Cicero, Theresa M Becker, Anna R Docherty, John G Kerns
People with schizophrenia exhibit wide-ranging cognitive deficits, including slower processing speed and decreased cognitive control. Disorganized speech symptoms, such as communication impairment, have been associated with poor cognitive control task performance (e.g., goal maintenance and working memory). Whether communication impairment is associated with poorer performance on a broader range of non-cognitive control measures is unclear. In the current study, people with schizophrenia (n =51) and non-psychiatric controls (n =26) completed speech interviews allowing for reliable quantitative assessment of communication impairment...
January 6, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28104562/assessing-patient-rated-vs-clinician-rated-adherence-to-the-therapy-in-treatment-resistant-schizophrenia-schizophrenia-responders-and-non-schizophrenia-patients
#16
Felice Iasevoli, Andrea Fagiolini, Maria Vittoria Formato, Emiliano Prinzivalli, Sara Giordano, Raffaele Balletta, Vincenzo De Luca, Andrea de Bartolomeis
The present study evaluated consistency, reliability, and determinants of two real-world measures of adherence to prescription in 57 schizophrenia and 61 non-schizophrenia patients. Treatment resistant schizophrenia (TRS) was additionally diagnosed in 28 of the schizophrenia patients. Patients were screened for clinical severity, cognitive functioning, and adherence by 10-item Drug Attitude Inventory (DAI-10) or Adherence-to-Therapy (AtT), a clinician-rated tool developed by our group. DAI-10 and AtT scores showed a significant correlation (p=0...
January 7, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28099526/executive-functioning-in-men-with-schizophrenia-and-substance-use-disorders-influence-of-lifetime-suicide-attempts
#17
Ana Adan, Maria Del Mar Capella, Gemma Prat, Diego A Forero, Silvia López-Vera, José Francisco Navarro
BACKGROUND: Lifetime suicide attempts in patients with comorbidity between psychotic disorders and Substance Use Disorder (SUD), known as dual diagnosis, was associated with a worse clinical and cognitive state, poor prognosis and premature death. However, to date no previous study has examined the cognitive performance of these patients considering as independent the presence or absence of lifetime suicide attempts. METHODS: We explore executive functioning differences between suicide attempters and non-attempters in dual schizophrenia (DS) patients and the possible related factors for both executive performance and current suicide risk...
2017: PloS One
https://www.readbyqxmd.com/read/28094171/the-relationship-of-cognitive-improvement-after-cognitive-remediation-with-social-functioning-in-patients-with-schizophrenia-and-severe-cognitive-deficits
#18
J P Lindenmayer, Samantha Fregenti, Guoxin Kang, Veronica Ozog, Isidora Ljuri, Anzalee Khan, A Goldring, Susan R McGurk
BACKGROUND: This study aims to examine the effects of change in neurocognition on functional outcomes and to examine predictors of change in social functions following a 12-week course of cognitive remediation in patients with schizophrenia and schizoaffective disorder with severe cognitive impairments. METHOD: Level of social functioning was assessed using a performance based measure of functional capacity (PSP) in patients prior to and after the completion of 12-week cognitive remediation treatment (CRT)...
January 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28093278/similar-patterns-of-brain-activation-abnormalities-during-emotional-and-non-emotional-judgments-of-faces-in-a-schizophrenia-family-study
#19
Michael J Spilka, Vina M Goghari
Schizophrenia patients have impaired performance and abnormal brain activation during facial emotion recognition, which may represent a marker of genetic liability to schizophrenia. However, it remains unclear whether the impairment is specific to recognizing emotion from faces or is instead attributable to more generalized dysfunction. The current study aimed to distinguish between specific and generalized neural dysfunction underlying impaired facial emotion recognition in schizophrenia and examine associations with genetic liability...
February 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28089652/hippocampal-prefrontal-connectivity-as-a-translational-phenotype-for-schizophrenia
#20
REVIEW
Florian Bähner, Andreas Meyer-Lindenberg
Finding novel biological targets in psychiatry has been difficult, partly because current diagnostic categories are not defined by pathophysiology and difficult to model in animals. The study of species-conserved systems-level mechanisms implicated in psychiatric disease could be a promising strategy to address some of these difficulties. Altered hippocampal-prefrontal (HC-PFC) connectivity during working memory (WM) processing is a candidate for such a translational phenotype as it has been repeatedly associated with impaired cognition in schizophrenia patients and animal models for psychiatric risk factors...
February 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
keyword
keyword
66613
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"