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https://www.readbyqxmd.com/read/28936934/-dementia-and-advertising-techniques
#1
K Bormans
Dementia is tough for the person who is suffering from it, but also stressful for the entourage. The decrease of contact and recognition is difficult for these 'shadow victims of the disorder'. Looking at dementia as mere 'memory loss' may cause feelings of powerlessness, since there is currently no medication that can prevent or cure this deterioration process. Shifting the emphasis to 'loss of communication' makes the problem somewhat easier to deal with. What if advertising techniques could boost the challenging dialogue with people suffering from dementia?...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28935605/pyridoxine-improves-hippocampal-cognitive-function-via-increases-of-serotonin-turnover-and-tyrosine-hydroxylase-and-its-association-with-cb1-cannabinoid-receptor-interacting-protein-and-the-cb1-cannabinoid-receptor-pathway
#2
Hyo Young Jung, Dae Won Kim, Sung Min Nam, Jong Whi Kim, Jin Young Chung, Moo-Ho Won, Je Kyung Seong, Yeo Sung Yoon, Dae Young Yoo, In Koo Hwang
BACKGROUND: In the present study, we investigated the effects of pyridoxine on hippocampal functions and changes in protein profiles based on the proteomic approach. METHODS: Eight-week-old mice received intraperitoneal injections of physiological saline (vehicle) or 350mg/kg pyridoxine twice a day for 21days. RESULTS: Phosphoglycerate mutase 1 was up-regulated, while CB1 cannabinoid receptor-interacting protein 1 (CRIP1) was down-regulated, in the pyridoxine-treated group...
September 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28935447/prosocial-effects-of-prolactin-in-male-rats-social-recognition-social-approach-and-social-learning
#3
Mary E Donhoffner, Samar Al Saleh, Olivia Schink, Ruth I Wood
Prolactin (PRL) and oxytocin (OT) are pituitary hormones essential for lactation, but also promote sexual behavior. OT stimulates social behaviors, such as recognition, approach, and learning, but less is known about PRL in these behaviors. Since PRL and OT have complementary functions in reproduction, we hypothesized that PRL increases social recognition, approach, and learning. Male Long-Evans rats received ovine PRL (oPRL; 0.5, 2.0 or 5.0mg/kg), the PRL antagonist bromocriptine (0.1, 3.0 or 5.0mg/kg) or saline 20 mins before testing for recognition of familiar vs...
September 18, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28935268/repeated-cortisol-administration-does-not-reduce-intrusive-memories-a-double-blind-placebo-controlled-experimental-study
#4
Alexandra Heike Graebener, Tanja Michael, Elena Holz, Johanna Lass-Hennemann
PTSD is a severe mental disorder, which may develop after exposure to traumatic events and is characterized by intrusive memories. Intrusions are sudden brief sensory memories of the traumatic event, that cause immense distress and impairment in every day functioning. Thus, the reduction of intrusive memories is one of the main aims of PTSD therapy. Recently, the glucocorticoid cortisol has been proposed as a pharmacological option to reduce intrusive memories, because cortisol is known to have memory retrieval inhibiting effects...
September 18, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28933900/construction-and-updating-of-event-models-in-auditory-event-processing
#5
Markus Huff, Annika E Maurer, Irina Brich, Anne Pagenkopf, Florian Wickelmaier, Frank Papenmeier
Humans segment the continuous stream of sensory information into distinct events at points of change. Between 2 events, humans perceive an event boundary. Present theories propose changes in the sensory information to trigger updating processes of the present event model. Increased encoding effort finally leads to a memory benefit at event boundaries. Evidence from reading time studies (increased reading times with increasing amount of change) suggest that updating of event models is incremental. We present results from 5 experiments that studied event processing (including memory formation processes and reading times) using an audio drama as well as a transcript thereof as stimulus material...
September 21, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28933897/guessing-versus-misremembering-in-recognition-a-comparison-of-continuous-two-high-threshold-and-low-threshold-models
#6
Jeffrey J Starns, Qiuli Ma
The two-high-threshold (2HT) model of recognition memory assumes that people make memory errors because they fail to retrieve information from memory and make a guess, whereas the continuous unequal-variance (UV) model and the low-threshold (LT) model assume that people make memory errors because they retrieve misleading information from memory. We explored the nature of memory errors by comparing guessing and memory performance. In 2 experiments, participants studied lists of words followed by a test in which each trial was preceded by a cue indicating the probability that the trial would have a studied word...
September 21, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28933896/the-effects-of-sleep-deprivation-on-item-and-associative-recognition-memory
#7
Roger Ratcliff, Hans P A Van Dongen
Sleep deprivation adversely affects the ability to perform cognitive tasks, but theories range from predicting an overall decline in cognitive functioning because of reduced stability in attentional networks to specific deficits in various cognitive domains or processes. We measured the effects of sleep deprivation on two memory tasks, item recognition ("was this word in the list studied") and associative recognition ("were these two words studied in the same pair"). These tasks test memory for information encoded a few minutes earlier and so do not address effects of sleep deprivation on working memory or consolidation after sleep...
September 21, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/28932899/voluntary-running-enhanced-synaptic-plasticity-learning-and-memory-are-mediated-by-notch1-signal-pathway-in-c57bl-mice
#8
Xiaochen Zhang, Chunxiao Yang, Jing Gao, Hongqiang Yin, Hui Zhang, Tao Zhang, Zhuo Yang
It is well known that voluntary running can enhance synaptic plasticity and improve learning and memory abilities. The Notch1 receptor is also reported to be associated with these processes, but its role in running-induced alterations is unclear. In this study, we aimed to investigate whether the Notch1 signalling pathway was involved in voluntary running-induced enhancement of synaptic plasticity, learning and memory. Notch1 heterozygous deficient (Notch1(+/-)) mice and wildtype (WT) C57BL littermates were randomly divided into runner group and non-runner group...
September 20, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28932108/cognitive-and-behavioral-evaluation-of-nutritional-interventions-in-rodent-models-of-brain-aging-and-dementia
#9
REVIEW
Devin Wahl, Sean Cp Coogan, Samantha M Solon-Biet, Rafael de Cabo, James B Haran, David Raubenheimer, Victoria C Cogger, Mark P Mattson, Stephen J Simpson, David G Le Couteur
Evaluation of behavior and cognition in rodent models underpins mechanistic and interventional studies of brain aging and neurodegenerative diseases, especially dementia. Commonly used tests include Morris water maze, Barnes maze, object recognition, fear conditioning, radial arm water maze, and Y maze. Each of these tests reflects some aspects of human memory including episodic memory, recognition memory, semantic memory, spatial memory, and emotional memory. Although most interventional studies in rodent models of dementia have focused on pharmacological agents, there are an increasing number of studies that have evaluated nutritional interventions including caloric restriction, intermittent fasting, and manipulation of macronutrients...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28931679/pathogenic-correlates-of-the-simian-immunodeficiency-virus-siv-associated-b-cell-dysfunction
#10
Egidio Brocca-Cofano, David Kuhrt, Basile Siewe, Cuiling Xu, George S Haret-Richter, Jodi Craigo, Celia Labranche, David C Montefiori, Alan Landay, Cristian Apetrei, Ivona Pandrea
We compared and contrasted pathogenic (pigtailed macaques-PTMs) and nonpathogenic (African green monkeys-AGMs) SIVsab infections to assess the significance of the B-cell dysfunction observed in SIV/HIV infection. We report that the loss of B cells is specifically associated with the pathogenic SIV infection, while in the nonpathogenic natural hosts B cells rapidly increase in both LNs and intestine. SIV-associated B-cell dysfunction associated to the pathogenic SIV infection is characterized by loss of naïve B cells; loss of resting memory B cells due to their redistribution to the gut; increases of the activated B cells and circulating tissue-like memory B cells and expansion of the B regulatory cells...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931469/restorative-effects-of-curcumin-on-sleep-deprivation-induced-memory-impairments-and-structural-changes-of-the-hippocampus-in-a-rat-model
#11
Ali Noorafshan, Fatemeh Karimi, Ali-Mohammad Kamali, Saied Karbalay-Doust, Mohammad Nami
The present study examined the consequences of rapid eye-movement sleep-deprivation (REM-SD) with or without curcumin treatment. The outcome measures comprised quantitative features in the three-dimensional reconstructed (3DR) CA1 and dentate gyrus in experimental and control animals using stereological procedures. Male rats were arbitrarily assigned to nine groups based on the intervention and treatment administered including: 1-cage control+distilled water, 2-cage control+curcumin (100mg/kg/day), 3-cage control+olive oil, 4-REM-SD+distilled water, 5-REM-SD+curcumin, 6-REM-SD+olive oil, 7-grid-floor control+distilled water, 8-grid-floor control+curcumin, and 9-grid-floor control+olive oil...
September 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/28931410/lentivirus-mediated-interleukin-1%C3%AE-il-1%C3%AE-knock-down-in-the-hippocampus-alleviates-lipopolysaccharide-lps-induced-memory-deficits-and-anxiety-and-depression-like-behaviors-in-mice
#12
Mengmeng Li, Chenli Li, Hanjie Yu, Xiongxiong Cai, Xinbei Shen, Xin Sun, Jinting Wang, Yanhua Zhang, Chuang Wang
BACKGROUND: Recent evidence has suggested that peripheral inflammatory responses induced by lipopolysaccharides (LPS) play an important role in neuropsychiatric dysfunction in rodents. Interleukin-1β (IL-1β), a pro-inflammatory cytokine, has been proposed to be a key mediator in a variety of behavioral dysfunction induced by LPS in mice. Thus, inhibition of IL-1β may have a therapeutic benefit in the treatment of neuropsychiatric disorders. However, the precise underlying mechanism of knock-down of IL-1β in repairing behavioral changes by LPS remains unclear...
September 20, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28928695/moderate-contrast-in-the-evaluation-of-paintings-is-liked-more-but-remembered-less-than-high-contrast
#13
Katinka Dijkstra, Noah N N van Dongen
Many visual aspects of paintings, as well as exposure to art and cultural norms, contribute to the aesthetic evaluation of paintings. The current study looked at heightened visual contrast as an important factor in the appreciation of paintings. Participants evaluated abstract digitized paintings that were manipulated in contrast for an appreciation task and were later presented with these paintings in a memory task. The results indicated that for art appreciation, a moderate increase in contrast resulted in the highest appreciation for paintings whereas recognition memory was better for paintings with a higher increase in contrast...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28928640/hdac3-inhibitor-rgfp966-modulates-neuronal-memory-for-vocal-communication-signals-in-a-songbird-model
#14
Mimi L Phan, Mark M Gergues, Shafali Mahidadia, Jorge Jimenez-Castillo, David S Vicario, Kasia M Bieszczad
Epigenetic mechanisms that modify chromatin conformation have recently been under investigation for their contributions to learning and the formation of memory. For example, the role of enzymes involved in histone acetylation are studied in the formation of long-lasting memories because memory consolidation requires gene expression events that are facilitated by an open state of chromatin. We recently proposed that epigenetic events may control the entry of specific sensory features into long-term memory by enabling transcription-mediated neuronal plasticity in sensory brain areas...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28927742/the-effect-of-sex-and-menstrual-phase-on-memory-formation-during-nap
#15
Sara C Mednick, Negin Sattari, Elizabeth A McDevitt, Dagmara Panas, Mohammad Niknazar, Maryam Ahmadi, Mohsen Naji, Fiona Baker
Memory formation can be influenced by sleep and sex hormones in both men and women, and by the menstrual cycle in women. Though many studies have shown that sleep benefits the consolidation of memories, it is not clear whether this effect differs between men and women in general or according to menstrual phase in women. The present study investigated the effect of sex and menstrual cycle on memory consolidation of face-name associations (FNA) following a daytime nap. Recognition memory was tested using a face-name paired associates task with a polysomnographic nap between morning and evening testing...
September 16, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28926752/response-bias-and-response-monitoring-evidence-from-healthy-older-adults-and-patients-with-mild-alzheimer-s-disease
#16
Rebecca G Deason, Michelle J Tat, Sean Flannery, Prabhakar S Mithal, Erin P Hussey, Eileen T Crehan, Brandon A Ally, Andrew E Budson
Patients with Alzheimer's disease (AD) often exhibit an abnormally liberal response bias in recognition memory tests, responding "old" more frequently than "new." Investigations have shown patients can to shift to a more conservative response bias when given instructions. We examined if patients with mild AD could alter their response patterns when the ratio of old items is manipulated without explicit instruction. Healthy older adults and AD patients studied lists of words and then were tested in three old/new ratio conditions (30%, 50%, or 70% old items)...
September 16, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28926473/hydrogen-gas-attenuates-sevoflurane-neurotoxicity-through-inhibiting-nuclear-factor-%C3%AE%C2%BA-light-chain-enhancer-of-activated-b-cells-signaling-and-proinflammatory-cytokine-release-in-neonatal-rats
#17
Yiwei Shi, Gang Wang, Jinyuan Li, Wenli Yu
Anesthesia neurotoxicity in developing brain has gained increasing attention. However, knowledge regarding its mitigating strategies remains scant. Sevoflurane, a commonly used anesthetic, is responsible for learning and memory deficits in neonates. Molecular hydrogen is reported to be a potential neuroprotective agent because of its antioxidative and anti-inflammatory activities. This study aimed to investigate the effect of hydrogen gas on sevoflurane neurotoxicity. The newborn rats were treated with sevoflurane and/or hydrogen gas for 2 h...
September 18, 2017: Neuroreport
https://www.readbyqxmd.com/read/28926415/semantic-memory-in-the-clinical-progression-of-alzheimer-disease
#18
Christophe T Tchakoute, Kristin L Sainani, And Victor W Henderson
BACKGROUND AND OBJECTIVE: Semantic memory measures may be useful in tracking and predicting progression of Alzheimer disease. We investigated relationships among semantic memory tasks and their 1-year predictive value in women with Alzheimer disease. METHODS: We conducted secondary analyses of a randomized clinical trial of raloxifene in 42 women with late-onset mild-to-moderate Alzheimer disease. We assessed semantic memory with tests of oral confrontation naming, category fluency, semantic recognition and semantic naming, and semantic density in written narrative discourse...
September 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28926127/recall-features-and-allorecognition-in-innate-immunity
#19
REVIEW
Hirofumi Uehara, Koichiro Minami, Markus Quante, Yeqi Nian, Timm Heinbokel, Haruhito Azuma, Abdala El Khal, Stefan G Tullius
Alloimmunity traditionally distinguishes short-lived, rapid and non-specific innate immune responses from adaptive immune responses that are characterized by a highly specific response initiated in a delayed fashion. Key players of innate immunity such as natural killer (NK) cells and macrophages present the first-line defense of immunity. The concept of unspecific responses in innate immunity has recently been challenged. The discovery of pattern recognition receptors (PRRs) has demonstrated that innate immune cells respond in a semi-specific fashion through the recognition of pathogen-associated molecular patterns (PAMPs) representing conserved molecular structures shared by large groups of microorganisms...
September 19, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28922960/cognitive-performance-in-transient-global-hypoxic-brain-injury-due-to-moderate-drowning
#20
Mariana Penteado Nucci, Katerina Lukasova, Gilson Vieira, João Ricardo Sato, Edson Amaro Júnior
INTRODUCTION: Drowning is a serious and frequently neglected public health threat. Primary respiratory impairment after submersion often leads to brain dysfunction. Depending on the period of global hypoxia (respiratory failure), clinical aspects of neurological dysfunction are evident on the first evaluation after the water rescue. Nowadays, many neuropsychological assessments after drowning are inconclusive, with some studies reporting only minor neurological or cognitive impairments...
September 19, 2017: Journal of Clinical and Experimental Neuropsychology
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