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https://www.readbyqxmd.com/read/27922094/foldable-and-disposable-memory-on-paper
#1
Byung-Hyun Lee, Dong-Il Lee, Hagyoul Bae, Hyejeong Seong, Seung-Bae Jeon, Myung-Lok Seol, Jin-Woo Han, M Meyyappan, Sung-Gap Im, Yang-Kyu Choi
Foldable organic memory on cellulose nanofibril paper with bendable and rollable characteristics is demonstrated by employing initiated chemical vapor deposition (iCVD) for polymerization of the resistive switching layer and inkjet printing of the electrode, where iCVD based on all-dry and room temperature process is very suitable for paper electronics. This memory exhibits a low operation voltage of 1.5 V enabling battery operation compared to previous reports and wide memory window. The memory performance is maintained after folding tests, showing high endurance...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27922089/elderly-patients-have-an-altered-gut-brain-axis-regardless-of-the-presence-of-cirrhosis
#2
Jasmohan S Bajaj, Vishwadeep Ahluwalia, Joel L Steinberg, Sarah Hobgood, Peter A Boling, Michael Godschalk, Saima Habib, Melanie B White, Andrew Fagan, Edith A Gavis, Dinesh Ganapathy, Phillip B Hylemon, Karen E Stewart, Raffi Keradman, Eric J Liu, Jessica Wang, Patrick M Gillevet, Masoumeh Sikaroodi, F Gerard Moeller, James B Wade
Cognitive difficulties manifested by the growing elderly population with cirrhosis could be amnestic (memory-related) or non-amnestic (memory-unrelated). The underlying neuro-biological and gut-brain changes are unclear in this population. We aimed to define gut-brain axis alterations in elderly cirrhotics compared to non-cirrhotic individuals based on presence of cirrhosis and on neuropsychological performance. Age-matched outpatients with/without cirrhosis underwent cognitive testing (amnestic/non-amnestic domains), quality of life (HRQOL), multi-modal MRI (fMRI go/no-go task, volumetry and MR spectroscopy), blood (inflammatory cytokines) and stool collection (for microbiota)...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921282/the-style-of-a-stranger-identification-expertise-generalizes-to-coarser-level-categories
#3
Rachel A Searston, Jason M Tangen
Experience identifying visual objects and categories improves generalization within the same class (e.g., discriminating bird species improves transfer to new bird species), but does such perceptual expertise transfer to coarser category judgments? We tested whether fingerprint experts, who spend their days comparing pairs of prints and judging whether they were left by the same finger or two different fingers, can generalize their finger discrimination expertise to people more broadly. That is, can these experts identify prints from Jones's right thumb and prints from Jones's right index finger as instances of the same "Jones" category? Novices and experts were both sensitive to the style of a stranger's prints; despite lower levels of confidence, experts were significantly more sensitive to this style than novices...
December 5, 2016: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/27920794/dance-experience-and-associations-with-cortical-gray-matter-thickness-in-the-aging-population
#4
Shai Porat, Naira Goukasian, Kristy S Hwang, Theodore Zanto, Triet Do, Jonathan Pierce, Shantanu Joshi, Ellen Woo, Liana G Apostolova
INTRODUCTION: We investigated the effect dance experience may have on cortical gray matter thickness and cognitive performance in elderly participants with and without mild cognitive impairment (MCI). METHODS: 39 cognitively normal and 48 MCI elderly participants completed a questionnaire regarding their lifetime experience with music, dance, and song. Participants identified themselves as either dancers or nondancers. All participants received structural 1.5-tesla MRI scans and detailed clinical and neuropsychological evaluations...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/27920752/the-effect-of-emotion-and-reward-contingencies-on-relational-memory-in-major-depression-an-eye-movement-study-with-follow-up
#5
Viola L Nemeth, Gergo Csete, Gergely Drotos, Nora Greminger, Zoltan Janka, Laszlo Vecsei, Anita Must
Background: Episodic memory disturbances were found to constitute a potential trait marker for major depression (MD). The recall of positive or rewarding information in a relational context is specifically impaired. Eye-movement recording constitutes a novel, direct approach to examine implicit memory performance. Here we aimed to assess the effect of emotional context and implicit virtual monetary reward or loss on viewing patterns in association with relational memory in a 6-months follow-up study in MD. Materials and Methods: Twenty-eight patients with MD and 30 healthy participants were trained to associate a face (happy/sad/neutral) with a background scene...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27920146/selectivity-in-post-encoding-connectivity-with-high-level-visual-cortex-is-associated-with-reward-motivated-memory
#6
Vishnu P Murty, Alexa Tompary, R Alison Adcock, Lila Davachi
: Reward motivation has been demonstrated to enhance declarative memory by facilitating systems level consolidation. While high reward information is often intermixed with lower reward information during an experience, memory for those experiences prioritizes high value information. How is this selectivity achieved? One possibility is that post-encoding consolidation processes bias memory strengthening to those representations associated with higher reward. To test this hypothesis, we investigated the influence of differential reward motivation on the selectivity of post-encoding markers of systems-level memory consolidation...
December 5, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27919829/training-induced-elevations-in-extracellular-lactate-in-hippocampus-and-striatum-dissociations-by-cognitive-strategy-and-type-of-reward
#7
Lori A Newman, Claire J Scavuzzo, Paul E Gold, Donna L Korol
Recent evidence suggests that astrocytes convert glucose to lactate, which is released from the astrocytes and supports learning and memory. This report takes a multiple memory perspective to test the role of astrocytes in cognition using real-time lactate measurements during learning and memory. Extracellular lactate levels in the hippocampus or striatum were determined with lactate biosensors while rats were learning place (hippocampus-sensitive) or response (striatum-sensitive) versions of T-mazes. In the first experiment, rats were trained on the place and response tasks to locate a food reward...
December 2, 2016: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/27919700/exposure-to-sevoflurane-anesthesia-during-development-does-not-impair-aspects-of-attention-during-adulthood-in-rats
#8
Kathy L Murphy, Jill McGaughy, Paula L Croxson, Mark G Baxter
Exposure to general anesthetic agents during development has been associated with neurotoxicity and long-term behavioral impairments in rodents and non-human primates. The phenotype of anesthetic-induced cognitive impairment has a robust learning and memory component, however less is known about other psychological domains. Data from retrospective human patient studies suggest that children undergoing multiple procedures requiring general anesthesia are at increased risk of attention deficit hyperactivity disorder...
December 2, 2016: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27919482/the-association-of-cognitive-impairment-with-gray-matter-atrophy-and-cortical-lesion-load-in-clinically-isolated-syndrome
#9
Sevda Diker, Arzu Ceylan Has, Aslı Kurne, Rahşan Göçmen, Kader Karlı Oğuz, Rana Karabudak
BACKGROUND: Multiple sclerosis can impair cognition from the early stages and has been shown to be associated with gray matter damage in addition to white matter pathology. OBJECTIVES: To investigate the profile of cognitive impairment in clinically isolated syndrome (CIS), and the contribution of cortical inflammation, cortical and deep gray matter atrophy, and white matter lesions to cognitive decline. METHODS: Thirty patients with clinically isolated syndrome and twenty demographically- matched healthy controls underwent neuropsychologic assessment through the Rao Brief Repeatable Battery, and brain magnetic resonance imaging with double inversion recovery using a 3T scanner...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27919226/molar-loss-and-powder-diet-leads-to-memory-deficit-and-modifies-the-mrna-expression-of-brain-derived-neurotrophic-factor-in-the-hippocampus-of-adult-mice
#10
Yosuke Takeda, Hiroshi Oue, Shinsuke Okada, Akira Kawano, Katsunori Koretake, Makoto Michikawa, Yasumasa Akagawa, Kazuhiro Tsuga
BACKGROUND: It is known that tooth loss is known to be a risk factor for Alzheimer's disease and soft diet feeding induces memory impairment. Recent studies have shown that brain-derived neurotrophic factor (BDNF) is associated with tooth loss or soft diet in young animal model, and that BDNF expression is decreased in patients with Alzheimer's disease. However, single or combined effect of tooth loss and/or soft diet on brain function has not fully understood. Here we examined the effect of molar loss and powder diet on memory ability and the expression of BDNF mRNA in the hippocampus of adult C57BL/6J mice...
December 5, 2016: BMC Neuroscience
https://www.readbyqxmd.com/read/27918908/likelihood-ratio-sequential-sampling-models-of-recognition-memory
#11
Adam F Osth, Simon Dennis, Andrew Heathcote
The mirror effect - a phenomenon whereby a manipulation produces opposite effects on hit and false alarm rates - is benchmark regularity of recognition memory. A likelihood ratio decision process, basing recognition on the relative likelihood that a stimulus is a target or a lure, naturally predicts the mirror effect, and so has been widely adopted in quantitative models of recognition memory. Glanzer, Hilford, and Maloney (2009) demonstrated that likelihood ratio models, assuming Gaussian memory strength, are also capable of explaining regularities observed in receiver-operating characteristics (ROCs), such as greater target than lure variance...
December 2, 2016: Cognitive Psychology
https://www.readbyqxmd.com/read/27918762/alternating-treatment-with-pazopanib-and-everolimus-vs-continuous-pazopanib-to-delay-disease-progression-in-patients-with-metastatic-clear-cell-renal-cell-cancer-the-ropetar-randomized-clinical-trial
#12
Geert A Cirkel, Paul Hamberg, Stefan Sleijfer, Olaf J L Loosveld, M Wouter Dercksen, Maartje Los, Marco B Polee, Franchette van den Berkmortel, Maureen J Aarts, Laurens V Beerepoot, Gerard Groenewegen, Martijn P Lolkema, Metin Tascilar, Johanna E A Portielje, Frank P J Peters, Heinz-Josef Klümpen, Vincent van der Noort, John B A G Haanen, Emile E Voest
Importance: To our knowledge, this is the first randomized clinical trial evaluating an alternating treatment regimen in an attempt to delay disease progression in clear cell renal cell carcinoma. Objective: To test our hypothesis that an 8-week rotating treatment schedule with pazopanib and everolimus delays disease progression, exhibits more favorable toxic effects, and improves quality of life when compared with continuous treatment with pazopanib. Design, Setting, and Participants: This was an open-label, randomized (1:1) study (ROPETAR trial)...
December 1, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27918316/cognitive-impairment-and-tramadol-dependence
#13
Medhat M Bassiony, Usama M Youssef, Mervat S Hassan, Ghada M Salah El-Deen, Hayam El-Gohari, Mohamed Abdelghani, Ahmed Abdalla, Dalia H Ibrahim
BACKGROUND AND OBJECTIVE: Cognitive impairment is one of the consequences of substance abuse. Tramadol abuse is a public health problem in Egypt. The objective of this study was to estimate the prevalence and correlates of cognitive impairment among tramadol-abuse patients and control subjects. METHODS: This study included 100 patients with tramadol abuse and 100 control subjects (matched for age, sex, and education) who were recruited from Zagazig University Hospital, Egypt...
December 1, 2016: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/27918286/how-does-intentionality-of-encoding-affect-memory-for-episodic-information
#14
Michael Craig, Karla Butterworth, Jonna Nilsson, Colin J Hamilton, Peter Gallagher, Tom V Smulders
Episodic memory enables the detailed and vivid recall of past events, including target and wider contextual information. In this paper, we investigated whether/how encoding intentionality affects the retention of target and contextual episodic information from a novel experience. Healthy adults performed (1) a What-Where-When (WWW) episodic memory task involving the hiding and delayed recall of a number of items (what) in different locations (where) in temporally distinct sessions (when) and (2) unexpected tests probing memory for wider contextual information from the WWW task...
November 2016: Learning & Memory
https://www.readbyqxmd.com/read/27918280/lateral-not-medial-prefrontal-cortex-contributes-to-punishment-and-aversive-instrumental-learning
#15
Philip Jean-Richard-Dit-Bressel, Gavan P McNally
Aversive outcomes punish behaviors that cause their occurrence. The prefrontal cortex (PFC) has been implicated in punishment learning and behavior, although the exact roles for different PFC regions in instrumental aversive learning and decision-making remain poorly understood. Here, we assessed the role of the orbitofrontal (OFC), rostral agranular insular (RAIC), prelimbic (PL), and infralimbic (IL) cortex in instrumental aversive learning and decision-making. Rats that pressed two individually presented levers for pellet rewards rapidly suppressed responding to one lever if it also caused mild punishment (punished lever) but continued pressing the other lever that did not cause punishment (unpunished lever)...
November 2016: Learning & Memory
https://www.readbyqxmd.com/read/27918181/comparing-vector-based-and-bayesian-memory-models-using-large-scale-datasets-user-generated-hashtag-and-tag-prediction-on-twitter-and-stack-overflow
#16
Clayton Stanley, Michael D Byrne
The growth of social media and user-created content on online sites provides unique opportunities to study models of human declarative memory. By framing the task of choosing a hashtag for a tweet and tagging a post on Stack Overflow as a declarative memory retrieval problem, 2 cognitively plausible declarative memory models were applied to millions of posts and tweets and evaluated on how accurately they predict a user's chosen tags. An ACT-R based Bayesian model and a random permutation vector-based model were tested on the large data sets...
December 2016: Psychological Methods
https://www.readbyqxmd.com/read/27918169/flexible-retrieval-when-true-inferences-produce-false-memories
#17
Alexis C Carpenter, Daniel L Schacter
Episodic memory involves flexible retrieval processes that allow us to link together distinct episodes, make novel inferences across overlapping events, and recombine elements of past experiences when imagining future events. However, the same flexible retrieval and recombination processes that underpin these adaptive functions may also leave memory prone to error or distortion, such as source misattributions in which details of one event are mistakenly attributed to another related event. To determine whether the same recombination-related retrieval mechanism supports both successful inference and source memory errors, we developed a modified version of an associative inference paradigm in which participants encoded everyday scenes comprised of people, objects, and other contextual details...
December 5, 2016: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/27917538/five-short-screening-tests-in-the-detection-of-prevalent-delirium-diagnostic-accuracy-and-performance-in-different-neurocognitive-subgroups
#18
N A O'Regan, K Maughan, N Liddy, J Fitzgerald, D Adamis, D W Molloy, D Meagher, S Timmons
BACKGROUND: Delirium is prevalent and serious, yet remains under-recognised. Systematic screening could improve detection; however, consensus is lacking as to the best approach. Our aim was to assess the diagnostic accuracy of five simple cognitive tests in delirium screening: six-item cognitive impairment test (6-CIT), clock-drawing test, spatial span forwards, months of the year backwards (MOTYB) and intersecting pentagons (IPT). METHODS: A cross-sectional study was conducted...
December 5, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27917450/the-short-term-effect-of-liver-transplantation-on-the-low-frequency-fluctuation-of-brain-activity-in-cirrhotic-patients-with-and-without-overt-hepatic-encephalopathy
#19
Gaoyan Zhang, Yue Cheng, Wen Shen, Baolin Liu, Lixiang Huang, Shuangshuang Xie
Previous neuropsychological studies have demonstrated that liver transplantation (LT) is an effective method for improving the cognitive function of cirrhotic patients. However, the neural basis underlying the effects of LT is still unclear. Neuroimaging studies investigating changes in brain structures or functional networks mainly focus on patients without overt hepatic encephalopathy (HE). In this study, we recruited patients with and without overt HE and studied alterations in resting-state brain activity by quantizing the amplitude of low-frequency fluctuation (ALFF) before and 1 month after LT to study the short-term effect of LT in each group...
December 5, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/27917270/effect-of-creatine-supplementation-on-cognitive-performance-and-apoptosis-in-a-rat-model-of-amyloid-beta-induced-alzheimer-s-disease
#20
Malek Alimohammadi-Kamalabadi, Mohammadreza Eshraghian, Mohammad-Reza Zarindast, Abbas Aliaghaei, Hamideh Pishva
OBJECTIVES: Neuroprotective effect of creatine (Cr) against β-amyloid (Aβ) is reported in an in vitro study. This study investigated the effect of Cr supplementation on β-amyloid toxicity in vivo. MATERIALS AND METHODS: Thirty two, male Wistar rats were divided into 4 groups. During ten weeks of study, control group went through no surgical or dietary intervention. At the 4th week of study Sham group had a hippocampal normal saline injection, while Aβ and AβCr groups had an β-amyloid injection in the hippocampus...
November 2016: Iranian Journal of Basic Medical Sciences
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