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Cognitive mapping

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https://www.readbyqxmd.com/read/28926500/occipital-lobe-and-posterior-cingulate-perfusion-in-the-prediction-of-dementia-with-lewy-body-pathology-in-a-clinical-sample
#1
Angus M J Prosser, Livia Tossici-Bolt, Christopher M Kipps
OBJECTIVE: The aim of this study was to investigate the diagnostic value of occipital lobe and posterior cingulate perfusion in predicting dopamine transporter imaging outcome using a quantitative measure of analysis. PATIENTS AND METHODS: In total, 99 patients with cognitive complaints who had undergone both technetium-99m-hexamethylpropyleneamine oxime single-photon emission computed tomography (Tc-HMPAO SPECT) and I ioflupane (I-FP-CIT also called DaTSCAN) imaging in a dementia diagnostic center were analyzed...
September 18, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28925598/atrophy-of-the-parahippocampal-gyrus-is-prominent-in-heart-failure-patients-without-dementia
#2
Tomomi Meguro, Yuko Meguro, Takeyoshi Kunieda
AIMS: The exacerbation of heart failure (HF) induces brain damage and cognitive impairment (CI), which frequently attenuates the effects of treatment. However, it is not clear whether HF patients without clinical dementia demonstrate increased risk of CI. We examined whether local atrophy in the parahippocampal gyrus, a potential predictor of CI, is prominent in HF patients without clinical dementia. METHODS AND RESULTS: Twenty stable HF patients with a history of admission due to decompensated HF or presentation of apparent pulmonary congestion following chest X-ray and 17 controls were enrolled in this observational, analytical, cross-sectional, case-control study...
July 17, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28924555/early-changes-in-brain-structure-correlate-with-language-outcomes-in-children-with-neonatal-encephalopathy
#3
Kevin A Shapiro, Hosung Kim, Maria Luisa Mandelli, Elizabeth E Rogers, Dawn Gano, Donna M Ferriero, A James Barkovich, Maria Luisa Gorno-Tempini, Hannah C Glass, Duan Xu
Global patterns of brain injury correlate with motor, cognitive, and language outcomes in survivors of neonatal encephalopathy (NE). However, it is still unclear whether local changes in brain structure predict specific deficits. We therefore examined whether differences in brain structure at 6 months of age are associated with neurodevelopmental outcomes in this population. We enrolled 32 children with NE, performed structural brain MR imaging at 6 months, and assessed neurodevelopmental outcomes at 30 months...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28923594/working-memory-predicts-children-s-analogical-reasoning
#4
Nina K Simms, Rebecca R Frausel, Lindsey E Richland
Analogical reasoning is the cognitive skill of drawing relationships between representations, often between prior knowledge and new representations, that allows for bootstrapping cognitive and language development. Analogical reasoning proficiency develops substantially during childhood, although the mechanisms underlying this development have been debated, with developing cognitive resources as one proposed mechanism. We explored the role of executive function (EF) in supporting children's analogical reasoning development, with the goal of determining whether predicted aspects of EF were related to analogical development at the level of individual differences...
September 15, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28922513/purpose-processes-partnerships-and-products-4ps-to-advance-participatory-socio-environmental-modeling
#5
Steven Gray, Alexey Voinov, Michael Paolisso, Rebecca Jordan, Todd BenDor, Pierre Bommel, Pierre Glynn, Beatrice Hedelin, Klaus Hubacek, Josh Introne, Nagesh Kolagani, Bethany Laursen, Christina Prell, Laura Schmitt-Olabisi, Alison Singer, Eleanor Sterling, Moira Zellner
Including stakeholders in environmental model building and analysis is an increasingly popular approach to understanding ecological change. This is because stakeholders often hold valuable knowledge about socio-environmental dynamics and collaborative forms of modeling produce important boundary objects used to collectively reason about environmental problems. Although the number of participatory modeling (PM) case studies and the number of researchers adopting these approaches has grown in recent years, the lack of standardized reporting and limited reproducibility have prevented PM's establishment and advancement as a cohesive field of study...
September 18, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28922416/multi-level-computational-methods-for-interdisciplinary-research-in-the-hathitrust-digital-library
#6
Jaimie Murdock, Colin Allen, Katy Börner, Robert Light, Simon McAlister, Andrew Ravenscroft, Robert Rose, Doori Rose, Jun Otsuka, David Bourget, John Lawrence, Chris Reed
We show how faceted search using a combination of traditional classification systems and mixed-membership topic models can go beyond keyword search to inform resource discovery, hypothesis formulation, and argument extraction for interdisciplinary research. Our test domain is the history and philosophy of scientific work on animal mind and cognition. The methods can be generalized to other research areas and ultimately support a system for semi-automatic identification of argument structures. We provide a case study for the application of the methods to the problem of identifying and extracting arguments about anthropomorphism during a critical period in the development of comparative psychology...
2017: PloS One
https://www.readbyqxmd.com/read/28918694/brain-metabolic-correlates-of-fatigue-in-parkinson-s-disease-a-pet-study
#7
Li Zhang, Tiannv Li, Yongsheng Yuan, Qing Tong, Siming Jiang, Min Wang, Jianwei Wang, Jian Ding, Qinrong Xu, Kezhong Zhang
The neural bases of fatigue in Parkinson's disease (PD) remain uncertain. We aimed to assess the brain metabolic correlates of fatigue in patients with PD. Twenty-seven PD patients without clinically relevant depression (17-item Hamilton Depression Rating Scale [HAMD] score ≥ 14), apathy (Apathy Scale [AS] score ≥ 14) and excessive daytime somnolence (Epworth Sleepiness Scale [ESS] score ≥ 10) were evaluated with Fatigue Severity Scale (FSS). Each patient had an F-18 fluorodeoxyglucose PET (FDG-PET) scan...
September 18, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28918604/symptom-experience-of-multiple-myeloma-symmex-patients-treated-with-autologous-stem-cell-transplantation-following-high-dose-melphalan-a-descriptive-longitudinal-study
#8
Matthias Naegele, Monika Kirsch, Gabriele Ihorst, Katharina Fierz, Monika Engelhardt, Sabina De Geest
PURPOSE: High-dose melphalan and autologous stem cell transplantation (ASCT) are associated with high symptom burden. This study aimed to explore multiple myeloma (MM) patients' experience of symptom frequency, intensity, and distress during therapy. METHODS: This descriptive longitudinal study enrolled 29 MM patients who completed the 43-item PROVIVO questionnaire, measuring symptom experience across the dimensions of frequency, intensity, and distress at four assessment points: hospital admission (T0), leucocyte nadir (T1), discharge (T2), and 30 days post discharge (T3)...
September 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28917696/brain-mapping-in-multiple-sclerosis-lessons-learned-about-the-human-brain
#9
REVIEW
Massimo Filippi, Paolo Preziosa, Maria A Rocca
The application of structural and functional magnetic resonance imaging (MRI) techniques in patients with multiple sclerosis (MS) has certainly helped to improve our understanding of the mechanisms responsible for clinical disability and cognitive impairment in this condition. The numerous studies performed in MS patients have also provided many lessons on the structure-function relationships in the human brain, which could be applied to healthy subjects and to patients affected by other neurological conditions...
September 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28915382/oxytocin-modulates-human-communication-by-enhancing-cognitive-exploration
#10
Miriam de Boer, Idil Kokal, Mark Blokpoel, Rui Liu, Arjen Stolk, Karin Roelofs, Iris van Rooij, Ivan Toni
Oxytocin is a neuropeptide known to influence how humans share material resources. Here we explore whether oxytocin influences how we share knowledge. We focus on two distinguishing features of human communication, namely the ability to select communicative signals that disambiguate the many-to-many mappings that exist between a signal's form and meaning, and adjustments of those signals to the presumed cognitive characteristics of the addressee ("audience design"). Fifty-five males participated in a randomized, double-blind, placebo controlled experiment involving the intranasal administration of oxytocin...
September 8, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28910996/think-adult-think-child-why-should-staff-caring-for-dying-adults-ask-what-the-death-means-for-children-in-the-family
#11
Sir Al Aynsley-Green
Introduction: Bereaved children and young people in the UK are 'hidden mourners'. Sources of data: Review of primary and secondary evidence on childhood bereavement. Area of agreement: Children experience grief that varies according to the circumstance of death and their cognitive ability. Voluntary organizations can be supportive, but provision is patchy and vulnerable to austerity. Areas of concern: Adult-centric denial of the importance and long-term consequences of childhood grief; uncertainty in how best to relate to bereaved children in faiths and in schools...
September 1, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28901999/recruitment-of-prefrontal-striatal-circuit-in-response-to-skilled-motor-challenge
#12
Yumei Guo, Zhuo Wang, Sandhya Prathap, Daniel P Holschneider
A variety of physical fitness regimens have been shown to improve cognition, including executive function, yet our understanding of which parameters of motor training are important in optimizing outcomes remains limited. We used functional brain mapping to compare the ability of two motor challenges to acutely recruit the prefrontal-striatal circuit. The two motor tasks - walking in a complex running wheel with irregularly spaced rungs or walking in a running wheel with a smooth internal surface - differed only in the extent of skill required for their execution...
September 8, 2017: Neuroreport
https://www.readbyqxmd.com/read/28899576/neuroscience-and-everyday-life-facing-the-translation-problem
#13
Jolien C Francken, Marc Slors
To enable the impact of neuroscientific insights on our daily lives, careful translation of research findings is required. However, neuroscientific terminology and common-sense concepts are often hard to square. For example, when neuroscientists study lying to allow the use of brain scans for lie-detection purposes, the concept of lying in the scientific case differs considerably from the concept in court. Furthermore, lying and other cognitive concepts are used unsystematically and have an indirect and divergent mapping onto brain activity...
September 10, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28899182/cognitive-humanistic-psychodynamics-sidney-blatt-s-theoretical-philosophical-legacy
#14
Golan Shahar, Linda C Mayes
A number of broad-based, theoretical-philosophical tenets are to be gleaned from Sidney Blatt's voluminous, extensive, and unique scholarly work. Dominant themes in Blatt's life and work include (1) his fascination with cognition, particularly mental maps, or representations, of reality; (2) the influence of humanistic values (e.g., agency, need for growth, gestalts, need for balance, and an optimistic focus on resilience); and (3) a steadfast adherence to Freud's revolutionary discovery of the dynamic unconscious...
June 2017: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/28899022/correlating-quantitative-susceptibility-mapping-with-cognitive-decline-in-alzheimer-s-disease
#15
Paul J Derry, Thomas A Kent
No abstract text is available yet for this article.
August 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28899019/cerebral-quantitative-susceptibility-mapping-predicts-amyloid-%C3%AE-related-cognitive-decline
#16
Scott Ayton, Amir Fazlollahi, Pierrick Bourgeat, Parnesh Raniga, Amanda Ng, Yen Ying Lim, Ibrahima Diouf, Shawna Farquharson, Jurgen Fripp, David Ames, James Doecke, Patricia Desmond, Roger Ordidge, Colin L Masters, Christopher C Rowe, Paul Maruff, Victor L Villemagne, Olivier Salvado, Ashley I Bush
See Derry and Kent (doi:10.1093/awx167) for a scientific commentary on this article.The large variance in cognitive deterioration in subjects who test positive for amyloid-β by positron emission tomography indicates that convergent pathologies, such as iron accumulation, might combine with amyloid-β to accelerate Alzheimer's disease progression. Here, we applied quantitative susceptibility mapping, a relatively new magnetic resonance imaging method sensitive to tissue iron, to assess the relationship between iron, amyloid-β load, and cognitive decline in 117 subjects who underwent baseline magnetic resonance imaging and amyloid-β positron emission tomography from the Australian Imaging, Biomarkers and Lifestyle study (AIBL)...
August 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28895445/strategic-infarct-location-for-post-stroke-cognitive-impairment-a-multivariate-lesion-symptom-mapping-study
#17
Lei Zhao, J Matthijs Biesbroek, Lin Shi, Wenyan Liu, Hugo J Kuijf, Winnie Wc Chu, Jill M Abrigo, Ryan Kl Lee, Thomas Wh Leung, Alexander Yl Lau, Geert J Biessels, Vincent Mok, Adrian Wong
Lesion location is an important determinant for post-stroke cognitive impairment. Although several 'strategic' brain regions have previously been identified, a comprehensive map of strategic brain regions for post-stroke cognitive impairment is lacking due to limitations in sample size and methodology. We aimed to determine strategic brain regions for post-stroke cognitive impairment by applying multivariate lesion-symptom mapping in a large cohort of 410 acute ischemic stroke patients. Montreal Cognitive Assessment at three to six months after stroke was used to assess global cognitive functioning and cognitive domains (memory, language, attention, executive and visuospatial function)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28894898/effective-collateral-circulation-may-indicate-improved-perfusion-territory-restoration-after-carotid-endarterectomy
#18
Tianye Lin, Zhichao Lai, Yuelei Lv, Jianxun Qu, Zhentao Zuo, Hui You, Bing Wu, Bo Hou, Changwei Liu, Feng Feng
OBJECTIVES: To investigate the relationship between the level of collateral circulation and perfusion territory normalisation after carotid endarterectomy (CEA). METHODS: This study enrolled 22 patients with severe carotid stenosis that underwent CEA and 54 volunteers without significant carotid stenosis. All patients were scanned with ASL and t-ASL within 1 month before and 1 week after CEA. Collateral circulation was assessed on preoperative ASL images based on the presence of ATA...
September 11, 2017: European Radiology
https://www.readbyqxmd.com/read/28888032/close-but-no-cigar-spatial-precision-deficits-following-medial-temporal-lobe-lesions-provide-novel-insight-into-theoretical-models-of-navigation-and-memory
#19
Branden S Kolarik, Trevor Baer, Kiarash Shahlaie, Andy P Yonelinas, Arne D Ekstrom
Increasing evidence suggests that the human hippocampus contributes to a range of different behaviors, including episodic memory, language, short-term memory, and navigation. A novel theoretical framework, the Precision and Binding Model, accounts for these phenomenon by describing a role for the hippocampus in high-resolution, complex binding. Other theories like Cognitive Map Theory, in contrast, predict a specific role for the hippocampus in allocentric navigation, while Declarative Memory Theory predicts a specific role in delay-dependent conscious memory...
September 9, 2017: Hippocampus
https://www.readbyqxmd.com/read/28886707/health-outcomes-of-non-nutritive-sweeteners-analysis-of-the-research-landscape
#20
REVIEW
Szimonetta Lohner, Ingrid Toews, Joerg J Meerpohl
BACKGROUND: Food products containing non-nutritive sweeteners (NNSs) instead of sugar have become increasingly popular in the last decades. Their appeal is obviously related to their calorie-free sweet taste. However, with the dramatic increase in their consumption, it is reasonable and timely to evaluate their potential health benefits and, more importantly, potential adverse effects. The main aim of this scoping review was to map the evidence about health outcomes possibly associated with regular NNS consumption by examining the extent, range, and nature of research activity in this area...
September 8, 2017: Nutrition Journal
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