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https://www.readbyqxmd.com/read/28634329/long-days-enhance-recognition-memory-and-increase-insulin-like-growth-factor-2-in-the-hippocampus
#1
Adriano Dellapolla, Ian Kloehn, Harshida Pancholi, Ben Callif, David Wertz, Kayla E Rohr, Matthew M Hurley, Kimberly M Baker, Samer Hattar, Marieke R Gilmartin, Jennifer A Evans
Light improves cognitive function in humans; however, the neurobiological mechanisms underlying positive effects of light remain unclear. One obstacle is that most rodent models have employed lighting conditions that cause cognitive deficits rather than improvements. Here we have developed a mouse model where light improves cognitive function, which provides insight into mechanisms underlying positive effects of light. To increase light exposure without eliminating daily rhythms, we exposed mice to either a standard photoperiod or a long day photoperiod...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28632779/base-rate-sensitivity-through-implicit-learning
#2
Andrew J Wismer, Corey J Bohil
Two experiments assessed the contributions of implicit and explicit learning to base-rate sensitivity. Using a factorial design that included both implicit and explicit learning disruptions, we tested the hypothesis that implicit learning underlies base-rate sensitivity from experience (and that explicit learning contributes comparatively little). Participants learned to classify two categories of simple stimuli (bar graph heights) presented in a 3:1 base-rate ratio. Participants learned either from "observational" training to disrupt implicit learning or "response" training which supports implicit learning...
2017: PloS One
https://www.readbyqxmd.com/read/28631942/a-systematic-review-of-factors-affecting-driving-and-public-transportation-among-youth-and-young-adults-with-acquired-brain-injury
#3
Sally Lindsay, Andrei Stoica
PURPOSE: Although many people with an acquired brain injury (ABI) encounter difficulties with executive functioning and memory which could negatively affect driving, few people are assessed for fitness to drive after injury. The purpose of this systematic review was to synthesize the literature on factors affecting driving and public transportation among youth and young adults with ABI, post injury. METHOD: Seven databases were systematically searched for articles from 1980 to 2016...
June 20, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28629964/a-novel-heterocyclic-compound-improves-working-memory-in-the-radial-arm-maze-and-modulates-the-dopamine-receptor-d1r-in-frontal-cortex-of-the-sprague-dawley-rat
#4
Ahmed M Hussein, Yogesh D Aher, Predrag Kalaba, Nilima Y Aher, Vladimir Dragačević, Bojana Radoman, Marija Ilic, Johann Leban, Tetyana Beryozkina, Abdel Baset M A Ahmed, Ernst Urban, Thierry Langer, Gert Lubec
A series of compounds have been shown to enhance cognitive function via the dopaminergic system and indeed the search for more active and less toxic compounds is continuing. It was therefore the aim of the study to synthetise and test a novel heterocyclic compound for cognitive enhancement in a paradigm for working memory. Specific and effective dopamine re-uptake inhibition (DAT (IC50=4,1 ± 0,8μM) made us test this compound in a radial arm maze (RAM) in the rat. CE-125 (4-((benzhydrylsulfinyl)methyl)-2-cyclopropylthiazole), was tested for dopamine (DAT), serotonin and norepinephrine re-uptake inhibition by a well-established system...
June 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28628538/memory-rehabilitation-strategies-in-nonsurgical-temporal-lobe-epilepsy-a-review
#5
Alessandra Del Felice, Marzia Alderighi, Matteo Martinato, Davide Grisafi, Anna Bosco, Pamela J Thompson, Josemir W Sander, Stefano Masiero
People with temporal lobe epilepsy (TLE) who have not undergone epilepsy surgery often complain of memory deficits. Cognitive rehabilitation is employed as a remedial intervention in clinical settings, but research is limited and findings concerning efficacy and the criteria for choosing different approaches have been inconsistent. We aimed to appraise existing evidence on memory rehabilitation in nonsurgical individuals with temporal lobe epilepsy and to ascertain the effectiveness of specific strategies. A scoping review was preferred given the heterogeneous nature of the interventions...
July 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28625942/cognitive-stimulation-in-healthy-older-adults-a-cognitive-stimulation-program-using-leisure-activities-compared-to-a-conventional-cognitive-stimulation-program
#6
Élisabeth Grimaud, Laurence Taconnat, David Clarys
The aim of this study was to compare two methods of cognitive stimulation for the cognitive functions. The first method used an usual approach, the second used leisure activities in order to assess their benefits on cognitive functions (speed of processing; working memory capacity and executive functions) and psychoaffective measures (memory span and self esteem). 67 participants over 60 years old took part in the experiment. They were divided into three groups: 1 group followed a program of conventional cognitive stimulation, 1 group a program of cognitive stimulation using leisure activities and 1 control group...
June 1, 2017: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/28625210/household-everyday-functioning-in-the-internet-age-online-shopping-and-banking-skills-are-affected-in-hiv-associated-neurocognitive-disorders
#7
Steven Paul Woods, Jennifer E Iudicello, Erin E Morgan, Marizela Verduzco, Tyler V Smith, Clint Cushman
OBJECTIVES: The Internet is a fundamental tool for completing many different instrumental activities of daily living (IADL), including shopping and banking. Persons with HIV-associated Neurocognitive Disorders (HAND) are at heightened risk for IADL problems, but the extent to which HAND interferes with the performance of Internet-based household IADLs is not known. METHODS: Ninety-three individuals with HIV disease, 43 of whom were diagnosed with HAND, and 42 HIV- comparison participants completed Internet-based tests of shopping and banking...
June 19, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28624583/pre-adolescent-and-adolescent-mice-are-less-sensitive-to-the-effects-of-acute-nicotine-on-extinction-and-spontaneous-recovery
#8
Munir Gunes Kutlu, Dana Zeid, Jessica M Tumolo, Thomas J Gould
Adolescence is a period of high risk for the initiation of nicotine product usage and exposure to traumatic events. In parallel, nicotine exposure has been found to age-dependently modulate acquisition of contextual fear memories; however, it is unknown if adolescent nicotine exposure alters extinction of fear related memories. Age-related differences in sensitivity to the effects of nicotine on fear extinction could increase or decrease susceptibility to anxiety disorders. In this study, we examined the effects of acute nicotine administration on extinction and spontaneous recovery of contextual fear memories in pre-adolescent (PND 23), late adolescent (PND 38), and adult (PND 53) C57B6/J mice...
June 15, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28622637/children-benefit-differently-from-night-and-day-time-sleep-in-motor-learning
#9
Jin H Yan
Motor skill acquisition occurs while practicing (on-line) and when asleep or awake (off-line). However, developmental questions still remain about whether children of various ages benefit similarly or differentially from night- and day-time sleeping. The likely circadian effects (time-of-day) and the possible between-test-interference (order effects) associated with children's off-line motor learning are currently unknown. Therefore, this study examines the contributions of over-night sleeping and mid-day napping to procedural skill learning...
June 13, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28622613/dissociation-of-item-and-source-memory-in-rhesus-monkeys
#10
Benjamin M Basile, Robert R Hampton
Source memory, or memory for the context in which a memory was formed, is a defining characteristic of human episodic memory and source memory errors are a debilitating symptom of memory dysfunction. Evidence for source memory in nonhuman primates is sparse despite considerable evidence for other types of sophisticated memory and the practical need for good models of episodic memory in nonhuman primates. A previous study showed that rhesus monkeys confused the identity of a monkey they saw with a monkey they heard, but only after an extended memory delay...
June 13, 2017: Cognition
https://www.readbyqxmd.com/read/28620876/english-orthographic-learning-in-chinese-l1-young-efl-beginners
#11
Yu-Lin Cheng
English orthographic learning, among Chinese-L1 children who were beginning to learn English as a foreign language, was documented when: (1) only visual memory was at their disposal, (2) visual memory and either some letter-sound knowledge or some semantic information was available, and (3) visual memory, some letter-sound knowledge and some semantic information were all available. When only visual memory was available, orthographic learning (measured via an orthographic choice test) was meagre. Orthographic learning was significant when either semantic information or letter-sound knowledge supplemented visual memory, with letter-sound knowledge generating greater significance...
June 15, 2017: Journal of Psycholinguistic Research
https://www.readbyqxmd.com/read/28620079/starvation-promotes-odor-feeding-time-associations-in-flies
#12
Nitin Singh Chouhan, Reinhard Wolf, Martin Heisenberg
Starvation causes a motivational state that facilitates diverse behaviors such as feeding, walking, and search. Starved Drosophila can form odor/feeding-time associations but the role of starvation in encoding of "time" is poorly understood. Here we show that the extent of starvation is correlated with the fly's ability to establish odor/feeding-time memories. Prolonged starvation promotes odor/feeding-time associations after just a single cycle of reciprocal training. We also show that starvation is required for acquisition but is dispensable for retrieval of odor/feeding-time memory...
July 2017: Learning & Memory
https://www.readbyqxmd.com/read/28620076/superior-long-term-synaptic-memory-induced-by-combining-dual-pharmacological-activation-of-pka-and-erk-with-an-enhanced-training-protocol
#13
Rong-Yu Liu, Curtis Neveu, Paul Smolen, Leonard J Cleary, John H Byrne
Developing treatment strategies to enhance memory is an important goal of neuroscience research. Activation of multiple biochemical signaling cascades, such as the protein kinase A (PKA) and extracellular signal-regulated kinase (ERK) pathways, is necessary to induce long-term synaptic facilitation (LTF), a correlate of long-term memory (LTM). Previously, a computational model was developed which correctly predicted a novel enhanced training protocol that augmented LTF by searching for the protocol with maximal overlap of PKA and ERK activation...
July 2017: Learning & Memory
https://www.readbyqxmd.com/read/28619858/ptsd-acute-stress-performance-and-decision-making-in-emergency-service-workers
#14
Cheryl Regehr, Vicki R LeBlanc
Despite research identifying high levels of stress and traumatic stress symptoms among those in the emergency services, the impact of these symptoms on performance and hence public safety remains uncertain. This review paper discusses a program of research that has examined the effects of prior critical incident exposure, acute stress, and current post-traumatic symptoms on the performance and decision-making during an acutely stressful event among police officers, police communicators, paramedics and child protection workers...
June 2017: Journal of the American Academy of Psychiatry and the Law
https://www.readbyqxmd.com/read/28619276/arginine-vasopressin-relates-with-spatial-learning-and-memory-in-a-mouse-model-of-spinocerebellar-ataxia-type-3
#15
Hong-Bo Jiang, Ai-Lin Du, Hai-Yang Luo, Jun Yang, Xiao-Qiu Luo, Rui-Qing Ma, Chang-He Shi, Yu-Ming Xu
Spinocerebellar ataxia is an inherited neurodegenerative disorder that the most prevalent type is type 3 (SCA3). Arginine vasopressin (AVP) is released within the lateral septum for controlling the learning and memory. This communication studied the effect of AVP on the spatial learning and memory of SCA3 mice. The spatial learning and memory were analyzed by Morris water maze test (MWM), and AVP concentration was measured by radioimmunoassay. The results showed that (Alves et al., 2010) the swimming velocity, distance traveled and latency to the platform of MWM in SCA3 mice were reduced slower than those in WT mice over 4 training days (p<0...
June 6, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28618306/effects-of-acute-exercise-on-fear-extinction-in-rats-and-exposure-therapy-in-humans-null-findings-from-five-experiments
#16
Jolene Jacquart, Rheall F Roquet, Santiago Papini, Mark B Powers, David Rosenfield, Jasper A J Smits, Marie-H Monfils
BACKGROUND: Exposure therapy is an established learning-based intervention for the treatment of anxiety disorders with an average response rate of nearly 50%, leaving room for improvement. Emerging strategies to enhance exposure therapy in humans and fear extinction retention in animal models are primarily pharmacological. These approaches are limited as many patients report preferring non-pharmacological approaches in therapy. With general cognitive enhancement effects, exercise has emerged as a plausible non-pharmacological augmentation strategy...
June 4, 2017: Journal of Anxiety Disorders
https://www.readbyqxmd.com/read/28617009/-the-feasibility-of-implementing-cognitive-remediation-for-work-in-community-based-psychiatric-rehabilitation-programs-correction-to-mcgurk-et-al-2017
#17
(no author information available yet)
Reports an error in "The feasibility of implementing cognitive remediation for work in community based psychiatric rehabilitation programs" by Susan R. McGurk, Kim T. Mueser, Melanie A. Watkins, Carline M. Dalton and Heather Deutsch (Psychiatric Rehabilitation Journal, 2017[Mar], Vol 40[1], 79-86). In the article, the author order was incorrect due to a printer error. The online version of this article has been corrected. (The following abstract of the original article appeared in record 2017-13255-004.) Objective: Adding cognitive remediation to vocational rehabilitation services improves cognitive and work functioning in people with serious mental illness, but despite interest, the uptake of cognitive programs into community services has been slow...
June 2017: Psychiatric Rehabilitation Journal
https://www.readbyqxmd.com/read/28614695/sex-differences-in-aerobic-exercise-efficacy-to-improve-cognition-a-systematic-review-and-meta-analysis-of-studies-in-older-rodents
#18
REVIEW
Cindy K Barha, Ryan S Falck, Jennifer C Davis, Lindsay S Nagamatsu, Teresa Liu-Ambrose
Research in humans indicates that women may show greater cognitive benefits from aerobic training (AT) than men. To determine whether this sex difference extends to rodents, we conducted a systematic review and meta-analysis of studies in healthy, older rodents. Results indicate that compared to controls, AT improved hippocampus-dependent and -independent learning and memory. A sex difference was found with males showing larger benefits from AT on conditioned-avoidance and non-spatial memory tasks. AT also increased brain-derived neurotrophic factor compared to controls, with larger effects in females...
June 11, 2017: Frontiers in Neuroendocrinology
https://www.readbyqxmd.com/read/28611699/the-age-effects-on-the-cognitive-processes-of-intention-based-and-stimulus-based-actions-an-erp-study
#19
Ya-Nan Niu, Xinyi Zhu, Juan Li
The functional decline in action among older adults is caused not only by physical weakness but also by cognitive decline. In this study, we aimed to compare the cognitive effects of age between intention-based and stimulus-based action modes electrophysiologically. Because age-related declines in cognitive function might proceed distinctly according to specific action modes and processes, four specific cognitive processes, action-effect binding, stimulus-response linkage, action-effect feedback control, and effect-action retrieval, were investigated...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28611691/morphine-reward-promotes-cue-sensitive-learning-implication-of-dorsal-striatal-creb-activity
#20
Mathieu Baudonnat, Jean-Louis Guillou, Marianne Husson, Veronique D Bohbot, Lars Schwabe, Vincent David
Different parallel neural circuits interact and may even compete to process and store information: whereas stimulus-response (S-R) learning critically depends on the dorsal striatum (DS), spatial memory relies on the hippocampus (HPC). Strikingly, despite its potential importance for our understanding of addictive behaviors, the impact of drug rewards on memory systems dynamics has not been extensively studied. Here, we assessed long-term effects of drug- vs food reinforcement on the subsequent use of S-R vs spatial learning strategies and their neural substrates...
2017: Frontiers in Psychiatry
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