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cognitive flexibility

Jenna M Reinen, Oliver Y Chén, R Matthew Hutchison, B T Thomas Yeo, Kevin M Anderson, Mert R Sabuncu, Dost Öngür, Joshua L Roffman, Jordan W Smoller, Justin T Baker, Avram J Holmes
Higher-order cognition emerges through the flexible interactions of large-scale brain networks, an aspect of temporal coordination that may be impaired in psychosis. Here, we map the dynamic functional architecture of the cerebral cortex in healthy young adults, leveraging this atlas of transient network configurations (states), to identify state- and network-specific disruptions in patients with schizophrenia and psychotic bipolar disorder. We demonstrate that dynamic connectivity profiles are reliable within participants, and can act as a fingerprint, identifying specific individuals within a larger group...
March 20, 2018: Nature Communications
Bas Geboers, Ellen Uiters, Sijmen A Reijneveld, Carel J M Jansen, Josué Almansa, Astrid C J Nooyens, W M Monique Verschuren, Andrea F de Winter, H Susan J Picavet
BACKGROUND: Many older adults have low levels of health literacy which affects their ability to participate optimally in healthcare. It is unclear how cognitive decline contributes to health literacy. To study this, longitudinal data are needed. The aim of this study was therefore to assess the associations of cognitive functioning and 10-years' cognitive decline with health literacy in older adults. METHODS: Data from 988 participants (mean age = 65.3) of the Doetinchem Cohort Study were analyzed...
March 20, 2018: BMC Geriatrics
Tiffany L Hutchins, Patricia A Prelock
Episodic memory (EM) and scene construction are critical for organizing and understanding personally experienced events and for developing several aspects of social cognition including self-concept, identity, introspection, future thinking, counterfactual reasoning, theory of mind, self-regulation, flexible problem-solving, and socially adaptive behavior. This article challenges the reader to think differently about EM in children with autism spectrum disorder (ASD), as we expand our understanding of autobiographical memory that requires an ability to travel back in time and re-experience an event...
April 2018: Seminars in Speech and Language
Tali R Marron, Yulia Lerner, Ety Berant, Sivan Kinreich, Irit Shapira-Lichter, Talma Hendler, Miriam Faust
Research on creativity shows that creative thinking entails both executive (controlled) and associative (spontaneous) processes. Yet standard creativity tasks cannot reliably isolate these two types of cognitive processes, making it difficult to understand the relation between the two and the roles of their corresponding brain networks in creative cognition. In this study we used a behavioral and neuroimaging approach in an effort to establish chain free association (FA) tasks as a relevant method for directly investigating spontaneous associative thinking and its role in creative cognition...
March 16, 2018: Neuropsychologia
Sonya Kim, Joseph F Rath, Vance Zemon, Marie M Cavallo, Rollin McCraty, Ana Sostre, Frederick W Foley
OBJECTIVE: To examine how positive affect influences ability to benefit from heart rate variability (HRV) biofeedback treatment for individuals with severe brain injury. METHOD: Secondary data analysis of a nonrandomized experimental study that assessed the efficacy of biofeedback treatment for executive dysfunction in 13 individuals with chronic severe brain injury. RESULTS: Bivariate correlations between the predictors (levels of HRV and positive affect) and the outcome (change in Category Test errors) showed large effect sizes for higher levels of HRV coherence (r = -...
February 2018: Rehabilitation Psychology
Katharina Förster, Silke Jörgens, Tracy M Air, Christian Bürger, Verena Enneking, Ronny Redlich, Dario Zaremba, Dominik Grotegerd, Katharina Dohm, Susanne Meinert, Elisabeth J Leehr, Joscha Böhnlein, Jonathan Repple, Nils Opel, Erhan Kavakbasi, Volker Arolt, Pienie Zwitserlood, Udo Dannlowski, Bernhard T Baune
To understand how cognitive dysfunction contributes to social cognitive deficits in depression, we investigated the relationship between executive function and social cognitive performance in adolescents and young adults during current and remitted depression, compared to healthy controls. Social cognition and executive function were measured in 179 students (61 healthy controls and 118 patients with depression; Mage = 20.60 years; SDage = 3.82 years). Hierarchical regression models were employed within each group (healthy controls, remitted depression, current depression) to examine the nature of associations between cognitive measures...
February 22, 2018: Psychiatry Research
K A Honn, J M Hinson, P Whitney, H P A Van Dongen
In around-the-clock operations, reduced alertness due to circadian misalignment and sleep loss causes performance impairment, which can lead to catastrophic errors and accidents. There is mounting evidence that performance on different tasks is differentially affected, but the general principles underlying this differentiation are not well understood. One factor that may be particularly relevant is the degree to which tasks require executive control, that is, control over the initiation, monitoring, and termination of actions in order to achieve goals...
March 14, 2018: Accident; Analysis and Prevention
Evangelia-Chrysanthi Kouklari, Stella Tsermentseli, Bonnie Auyeung
BACKGROUND: The association between Executive Function (EF) and Theory of Mind (ToM) in autism spectrum disorder (ASD) has been mainly investigated using false belief tasks, whilst less is known about the EF effect on other ToM facets. Furthermore, the role EF plays in social communication in ASD is mainly assessed using parent-report EF ratings rather than direct assessment. AIMS: The aim of this study was to shed more light on the effect of performance-based EF measures on ToM and social communication in middle childhood in ASD relative to neurotypical controls...
March 13, 2018: Research in Developmental Disabilities
Kenneth Fung, Johanna Lake, Lee Steel, Kelly Bryce, Yona Lunsky
Few studies have examined interventions or therapeutic processes that may help parents of children with Autism Spectrum Disorder (ASD) manage their stress. This study examines the impact of a brief Acceptance and Commitment Therapy (ACT) group intervention, led by parents, among a cohort of 33 mothers of children with ASD. Changes in ACT process measures (psychological flexibility, cognitive fusion, values) were evaluated at pre, post, and 3 months following the intervention. Mothers reported significant improvement post-intervention in psychological flexibility, cognitive fusion, and value-consistent activities in multiple life domains, including parenting, relationships, and self-care...
March 15, 2018: Journal of Autism and Developmental Disorders
Charles V Vorhees, Jenna N Sprowles, Samantha L Regan, Michael T Williams
High throughput screens for developmental neurotoxicity (DN) will facilitate evaluation of chemicals and can be used to prioritize those designated for follow-up. DN is evaluated under different guidelines. Those for drugs generally include peri- and postnatal studies and juvenile toxicity studies. For pesticides and commercial chemicals, when triggered, include developmental neurotoxicity studies (DNT) and extended one-generation reproductive toxicity studies. Raffaele et al. (2010) reviewed 69 pesticide DNT studies and found two of the four behavioral tests underperformed...
March 12, 2018: Toxicology and Applied Pharmacology
Amy Harrison, Pamela Stavri, Lynn Ormond, Francine McEnemy, Dilan Akyol, Annum Qureshi, Hind Al-Khairulla
Cognitive remediation therapy (CRT) is a low-intensity treatment adjunct for individuals with severe and complex anorexia nervosa (AN) with difficulties in globally oriented, flexible thinking. Previously trialled in adults, this study investigated whether individual and group CRT was a feasible, acceptable, and beneficial treatment for 125 adolescent inpatients with severe and complex AN. Seventy patients (mean age = 15.22, SD = 1.44) received 10 sessions of individual CRT, and 55 patients (mean age = 14...
March 15, 2018: European Eating Disorders Review: the Journal of the Eating Disorders Association
Arun Gupta, Pratima Murthy, Shobini Rao
Chronic use of mind altering substances can lead to a wide variety of neuropsychological deficits, affecting the domains of attention, learning, memory, reasoning. Executive functions such as working memory, cognitive flexibility and inhibitory control may specifically be impaired. These deficits can impact engagement in effective psychosocial interventions. Mild to moderate cognitive dysfunction may not be picked up in routine clinical examination or through commonly used tests like the mini-mental state examination (MMSE)...
February 2018: Indian Journal of Psychiatry
Amara Gul, Sadia Zafar
The objective of the current study was to compare cognitive flexibility and emotion regulation between childhood survivors of Acute Lymphoblastic Leukaemia (ALL) and healthy control subjects. Twenty-five childhood survivors of ALL treated with intrathecal chemotherapy between 2013 to 2016 from Shaukat Khanum Memorial Cancer Hospital, Children Hospital and Jinnah Hospital Lahore and twenty-five healthy demographically matched children (control group) participated in the study. Participants performed task switching experiment as a measure of cognitive flexibility and emotion regulation questionnaire for children and adolescents...
March 2018: JPMA. the Journal of the Pakistan Medical Association
Vipan K Parihar, Mattia Maroso, Amber Syage, Barrett D Allen, Maria C Angulo, Ivan Soltesz, Charles L Limoli
Of the many perils associated with deep space travel to Mars, neurocognitive complications associated with cosmic radiation exposure are of particular concern. Despite these realizations, whether and how realistic doses of cosmic radiation cause cognitive deficits and neuronal circuitry alterations several months after exposure remains unclear. In addition, even less is known about the temporal progression of cosmic radiation-induced changes transpiring over the duration of a time period commensurate with a flight to Mars...
March 11, 2018: Experimental Neurology
Amanda B Zheutlin, Adam M Chekroud, Renato Polimanti, Joel Gelernter, Fred W Sabb, Robert M Bilder, Nelson Freimer, Edythe D London, Christina M Hultman, Tyrone D Cannon
Genetic risk variants for schizophrenia have been linked to many related clinical and biological phenotypes with the hopes of delineating how individual variation across thousands of variants corresponds to the clinical and etiologic heterogeneity within schizophrenia. This has primarily been done using risk score profiling, which aggregates effects across all variants into a single predictor. While effective, this method lacks flexibility in certain domains: risk scores cannot capture nonlinear effects and do not employ any variable selection...
March 9, 2018: Schizophrenia Bulletin
Danielle Worthington, Patricia A Deuster
Spirituality is a key interweaving and interacting domain, and an integral component for maintaining Special Operations Forces readiness; however, it remains an under-researched and likely one of the most poorly understood domains of Preservation of the Force and Family and Total Force Fitness initiatives. Although there are numerous factors that contribute to spiritual performance or spiritual fitness, core values and value-directed living are essential. An initial step toward spiritual performance or fitness is developing core values and identity, followed by a second step toward spiritual performance or fitness, which is developing an increased awareness and deeper understanding of those values...
2018: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
Stephen M Fleming, Elisabeth J van der Putten, Nathaniel D Daw
Changing one's mind on the basis of new evidence is a hallmark of cognitive flexibility. To revise our confidence in a previous decision, we should use new evidence to update beliefs about choice accuracy. How this process unfolds in the human brain, however, remains unknown. Here we manipulated whether additional sensory evidence supports or negates a previous motion direction discrimination judgment while recording markers of neural activity in the human brain using fMRI. A signature of post-decision evidence (change in log-odds correct) was selectively observed in the activity of posterior medial frontal cortex...
March 12, 2018: Nature Neuroscience
Coline Jeantet, Stéphanie Caharel, Raymund Schwan, Joëlle Lighezzolo-Alnot, Vincent Laprevote
JEANTET, C., Caharel, S., Schwan, R., Lighezzolo-Alnot, J., and Laprevote, V. Factors influencing spatial frequencies extraction in faces: a review. NEUROSCI BIOBEHAV REV XX(X) XXX-XXX, 2017. Spatial frequency is an elementary aspect of visual perception. Moreover, faces elicit distinct responses by the human visual system when compared to other visual objects. This review examines the factors influencing spatial frequency processing in faces. Visual perception of a face results from the interaction between the physical properties of the stimulus and the human visual system...
March 9, 2018: Neuroscience and Biobehavioral Reviews
Gal Podjarny, Deepthi Kamawar, Katherine Andrews
Morra, Panesi, Traverso, and Usai's (Journal of Experimental Child Psychology, 2017, Vol. 167, pp. 246-258) effort to clarify theoretical models and nomenclature confusion surrounding young children's executive functions development is laudable and important. In this article, we address some of the points these authors raised regarding our previous article (Journal of Experimental Child Psychology, 2017, Vol. 159, pp. 199-218). Although we agree that the Multidimensional Card Selection Task makes working memory demands, it goes beyond working memory to measure concurrent cognitive flexibility in preschoolers...
March 9, 2018: Journal of Experimental Child Psychology
Chloë Campbell, Rhiannon Braund, Caroline Morris
INTRODUCTION Recognition of the need to reduce harm and optimise patient outcomes from the use of medicines is contributing to an evolution of pharmacy practice in primary health care internationally. This evolution is changing community pharmacy and leading to new models of care that enable pharmacist contribution beyond traditional realms. There is little information about the extent of these changes in New Zealand. AIM The aim of this study was to investigate emerging roles of pharmacists in primary health care...
December 2017: Journal of Primary Health Care
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