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https://www.readbyqxmd.com/read/28749614/dissecting-the-dynamics-of-trans-generational-immune-priming
#1
Joachim Kurtz, Sophie A O Armitage
The transfer of immunity from mother to offspring is a central way to endow the offspring with increased protection against pathogens. This phenomenon is not only found within the vertebrate domain: in some circumstances, invertebrate mothers can also give their offspring an immune kick-start, which is termed trans-generational immune priming (TGIP). TGIP has been uncovered for a number of invertebrate species, but it is not ubiquitously evident. The reasons for which are not known. In this issue of Molecular Ecology, Tate, Andolfatto, Demuth, and Graham () probe the molecular underpinnings of TGIP in concert with the temporal dynamics of the response in the red flour beetle, Tribolium castaneum, infected with the bacterium Bacillus thuringiensis (Figure )...
August 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28747878/transcranial-electric-stimulation-can-impair-gains-during-working-memory-training-and-affects-the-resting-state-connectivity
#2
Annie Möller, Federico Nemmi, Kim Karlsson, Torkel Klingberg
Transcranial electric stimulation (tES) is a promising technique that has been shown to improve working memory (WM) performance and enhance the effect of cognitive training. However, experimental set up and electrode placement are not always determined based on neurofunctional knowledge about WM, leading to inconsistent results. Additional research on the effects of tES grounded on neurofunctional evidence is therefore necessary. Sixty young, healthy, volunteers, assigned to six different groups, participated in 5 days of stimulation or sham treatment...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28745642/assessing-spatial-memory-impairment-in-a-mouse-model-of-traumatic-brain-injury-using-a-radial-water-tread-maze
#3
Marcella M Cline, Megan A Ostlie, Chloe G Cross, Gregory G Garwin, Satoshi Minoshima, Donna J Cross
Despite the recent increase in use of mouse models in scientific research, researchers continue to use cognitive tasks that were originally designed and validated for rat use. The Radial Water Tread (RWT) maze test of spatial memory (designed specifically for mice and requiring no swimming) has been shown previously to successfully distinguish between controlled cortical impact-induced TBI mice and sham controls. Here, a detailed protocol for this task is presented. The RWT maze capitalizes on the natural tendency of mice to avoid open areas in favor of hugging the sides of an apparatus (thigmotaxis)...
July 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28744647/antioxidant-and-antiamnestic-effects-of-potassium-comenate-and-comenic-acid-under-conditions-of-normobaric-hypoxia-with-hypercapnia
#4
L V Shurygina, E I Zlishcheva, A N Kravtsova, A A Kravtsov
Potassium comenate and comenic acid exhibit manifest and virtually identical antioxidant activity under conditions of hypoxia with hypercapnia. The effects of these drugs on conditioned reflex training with positive reinforcement differ significantly. Potassium comenate promotes retention of the learning capacity and memory in hypoxic rats at the level of intact control, that is, exhibits a pronounced protective antiamnestic effect, while comenic acid only facilitates training of the conditioned reflex with positive reinforcement...
July 26, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28744033/the-effect-of-cognitive-motor-dual-task-training-with-the-biorescue-force-platform-on-cognition-balance-and-dual-task-performance-in-institutionalized-older-adults-a-randomized-controlled-trial
#5
Tom Delbroek, Wietse Vermeylen, Joke Spildooren
[Purpose] This study investigates whether cognition, balance and dual task performance in institutionalized older adults improves by a virtual reality dual task training. [Subjects and Methods] Randomized controlled trial; Twenty institutionalized older adults with mild cognitive impairment (13 female, 7 male; average age, 87.2 ± 5.96 years) were randomized to the intervention (i.e. Virtual reality dual-task training using the BioRescue) or control group (no additional training). The intervention group took part in a 6-week training program while the elderly in the control group maintained their daily activities...
July 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28742159/%C3%AE-adrenergic-signaling-broadly-contributes-to-ltp-induction
#6
Joanna Jȩdrzejewska-Szmek, Vincent Luczak, Ted Abel, Kim T Blackwell
Long-lasting forms of long-term potentiation (LTP) represent one of the major cellular mechanisms underlying learning and memory. One of the fundamental questions in the field of LTP is why different molecules are critical for long-lasting forms of LTP induced by diverse experimental protocols. Further complexity stems from spatial aspects of signaling networks, such that some molecules function in the dendrite and some are critical in the spine. We investigated whether the diverse experimental evidence can be unified by creating a spatial, mechanistic model of multiple signaling pathways in hippocampal CA1 neurons...
July 24, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28742115/mind-wandering-during-attention-performance-effects-of-adhd-inattention-symptomatology-negative-mood-ruminative-response-style-and-working-memory-capacity
#7
Lisa M Jonkman, C Rob Markus, Michael S Franklin, Jens H van Dalfsen
OBJECTIVE: In adulthood, depressive mood is often comorbid with ADHD, but its role in ADHD-inattentiveness and especially relations with mind wandering remains to be elucidated. This study investigated the effects of laboratory-induced dysphoric mood on task-unrelated mind wandering and its consequences on cognitive task performance in college students with high (n = 46) or low (n = 44) ADHD-Inattention symptomatology and Hyperactivity/Impulsivity symptoms in the normal range. METHODS: These non-clinical high/low ADHD-Inattention symptom groups underwent negative or positive mood induction after which mind wandering frequency was measured in a sustained attention (SART), and a reading task...
2017: PloS One
https://www.readbyqxmd.com/read/28741031/inhibition-of-serotonin-transporters-disrupts-the-enhancement-of-fear-memory-extinction-by-3-4-methylenedioxymethamphetamine-mdma
#8
Matthew B Young, Seth D Norrholm, Lara M Khoury, Tanja Jovanovic, Sheila A M Rauch, Collin M Reiff, Boadie W Dunlop, Barbara O Rothbaum, Leonard L Howell
RATIONALE: 3,4-Methylenedioxymethamphetamine (MDMA) persistently improves symptoms of post-traumatic stress disorder (PTSD) when combined with psychotherapy. Studies in rodents suggest that these effects can be attributed to enhancement of fear memory extinction. Therefore, MDMA may improve the effects of exposure-based therapy for PTSD, particularly in treatment-resistant patients. However, given MDMA's broad pharmacological profile, further investigation is warranted before moving to a complex clinical population...
July 24, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28740472/the-benefits-of-working-memory-capacity-on-attentional-control-under-pressure
#9
Xiaoxiao Luo, Liwei Zhang, Jin Wang
The present study aimed to examine the effects of working memory capacity (WMC) and state anxiety (SA) on attentional control. WMC was manipulated by (a) dividing participants into low- and high-WMC groups (Experiment 1), and (b) using working memory training to improve WMC (Experiment 2). SA was manipulated by creating low- and high-SA conditions. Attentional control was evaluated by using antisaccade task. Results demonstrated that (a) higher WMC indicated better attentional control (Experiments 1 and 2); (b) the effects of SA on attentional control were inconsistent because SA impaired attentional control in Experiment 1, but favored attentional control in Experiment 2; and (c) the interaction of SA and WMC was not significant (Experiments 1 and 2)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28740471/no-evidence-of-narrowly-defined-cognitive-penetrability-in-unambiguous-vision
#10
Nikki A Lammers, Edward H de Haan, Yair Pinto
The classical notion of cognitive impenetrability suggests that perceptual processing is an automatic modular system and not under conscious control. Near consensus is now emerging that this classical notion is untenable. However, as recently pointed out by Firestone and Scholl, this consensus is built on quicksand. In most studies claiming perception is cognitively penetrable, it remains unclear which actual process has been affected (perception, memory, imagery, input selection or judgment). In fact, the only available "proofs" for cognitive penetrability are proxies for perception, such as behavioral responses and neural correlates...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28740391/attention-memory-training-yields-behavioral-and-academic-improvements-in-children-diagnosed-with-attention-deficit-hyperactivity-disorder-comorbid-with-a-learning-disorder
#11
Antonio Carlos Farias, Mara L Cordeiro, Erico Pg Felden, Tiago S Bara, Cássia R Benko, Daniele Coutinho, Leandra F Martins, Rosilda Tc Ferreira, James T McCracken
BACKGROUND: Recent studies have suggested that children with attention-deficit hyperactivity disorder (ADHD) may benefit from computerized cognitive training. Therapy implementation is especially complicated when ADHD is associated with learning disorders (LDs). This study tested the efficacy of a computer-based cognitive training program, namely, computerized cognitive training (CCT), in children with ADHD comorbid with an LD (ADHD-LD), with or without psychostimulant medication. MATERIALS AND METHODS: After diagnostic evaluations, 27 children with ADHD-LD (8 unmedicated and 19 medicated) participated in CCT, which is intended to improve attention, memory, reasoning, visual processing, and executive functioning...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28737452/memory-rehabilitation-for-the-working-memory-of-patients-with-multiple-sclerosis-ms
#12
Shokoufeh Mousavi, Hossein Zare, Masoud Etemadifar, Hamid Taher Neshatdoost
OBJECTIVE: The main cognitive impairments in multiple sclerosis (MS) affect the working memory, processing speed, and performances that are in close interaction with one another. Cognitive problems in MS are influenced to a lesser degree by disease recovery medications or treatments,but cognitive rehabilitation is considered one of the promising methods for cure. There is evidence regarding the effectiveness of cognitive rehabilitation for MS patients in various stages of the disease...
July 24, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28735367/short-term-and-long-term-effects-of-diazepam-on-the-memory-for-discrimination-and-generalization-of-scopolamine
#13
C Casasola-Castro, L Weissmann-Sánchez, E Calixto-González, A Aguayo-Del Castillo, D N Velázquez-Martínez
Benzodiazepines are among the most widely prescribed and misused psychopharmaceutical drugs. Although they are well-tolerated, they are also capable of producing amnestic effects similar to those observed after pharmacological or organic cholinergic dysfunction. To date, the effect of benzodiazepine diazepam on the memory for discrimination of anticholinergic drugs has not been reported. The aim of the present study was to analyze the immediate and long-term effects of diazepam on a drug discrimination task with scopolamine...
July 22, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28733208/influence-of-cued-fear-conditioning-and-its-impairment-on-nrem-sleep
#14
Tankesh Kumar, Sushil K Jha
Many studies suggest that fear conditioning influences sleep. It is, however, not known if the changes in sleep architecture after fear conditioning are essentially associated with the consolidation of fearful memory or with fear itself. Here, we have observed that within sleep, NREM sleep consistently remained augmented after the consolidation of cued fear-conditioned memory. But a similar change did not occur after impairing memory consolidation by blocking new protein synthesis and glutamate transmission between glial-neuronal loop in the lateral amygdala (LA)...
July 18, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28731451/novel-blood-based-biomarkers-of-cognition-stress-and-physical-or-cognitive-training-in-older-adults-at-risk-of-dementia-preliminary-evidence-for-a-role-of-bdnf-irisin-and-the-kynurenine-pathway
#15
Olivia C Küster, Daria Laptinskaya, Patrick Fissler, Cathrin Schnack, Martina Zügel, Verena Nold, Franka Thurm, Sina Pleiner, Alexander Karabatsiakis, Björn von Einem, Patrick Weydt, Andre Liesener, Andreas Borta, Alexander Woll, Bastian Hengerer, Iris-Tatjana Kolassa, Christine A F von Arnim
 Psychosocial stress and physical, cognitive, and social activity predict the risk of cognitive decline and dementia. The aim of this study was to elucidate brain-derived neurotrophic factor (BDNF), irisin, and the kynurenine pathway (KP) as potential underlying biological correlates. We evaluated associations of irisin and the KP with BDNF in serum and with cognition, stress, and activities. Furthermore, changes in serum concentrations of BDNF, irisin, and KP metabolites were investigated after physical or cognitive training...
July 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28730936/an-industry-update-what-is-the-latest-news-in-therapeutic-delivery
#16
Iain Simpson
This Industry Update covers the period from 1 through 30 April 2017, and is based on information sourced from company press releases, scientific literature, patents and various news websites. Biogen expanded its portfolio of developmental drugs targeting neurological diseases by licensing a drug from Bristol-Myers Squibb which is currently under investigation for the treatment of progressive supranuclear palsy. Takeda announced a deal with NuBiyota focused on developing treatments for gastrointestinal disorders, based on the manipulation of microbes living in the gut...
July 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28729138/spatial-working-memory-in-the-touchscreen-operant-platform-is-disrupted-in-female-rats-by-ovariectomy-but-not-estrous-cycle
#17
Alyssa M Sbisa, Andrea Gogos, Maarten van den Buuse
Learning and memory deficits have been described in rats and mice after ovariectomy (OVX) and across the estrous cycle. Preclinical researchers therefore often avoid using female animals and, consequently, a large male bias exists in the preclinical cognitive literature. In the present study we examined the role of sex hormones in the touchscreen operant platform using the spatial working memory trial unique nonmatching-to-location (TUNL) task. Twenty-nine Long Evans rats were trained to acquire the TUNL task including three incremental spatial separations (S0, S1, S2)...
July 17, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28726168/cognitive-interventions-for-cognitively-healthy-mildly-impaired-and-mixed-samples-of-older-adults-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#18
REVIEW
Catherine M Mewborn, Cutter A Lindbergh, L Stephen Miller
Cognitive interventions may improve cognition, delay age-related cognitive declines, and improve quality of life for older adults. The current meta-analysis was conducted to update and expand previous work on the efficacy of cognitive interventions for older adults and to examine the impact of key demographic and methodological variables. EBSCOhost and Embase online databases and reference lists were searched to identify relevant randomized-controlled trials (RCTs) of cognitive interventions for cognitively healthy or mildly impaired (MCI) older adults (60+ years)...
July 19, 2017: Neuropsychology Review
https://www.readbyqxmd.com/read/28725022/action-video-games-improve-reading-abilities-and-visual-to-auditory-attentional-shifting-in-english-speaking-children-with-dyslexia
#19
Sandro Franceschini, Piergiorgio Trevisan, Luca Ronconi, Sara Bertoni, Susan Colmar, Kit Double, Andrea Facoetti, Simone Gori
Dyslexia is characterized by difficulties in learning to read and there is some evidence that action video games (AVG), without any direct phonological or orthographic stimulation, improve reading efficiency in Italian children with dyslexia. However, the cognitive mechanism underlying this improvement and the extent to which the benefits of AVG training would generalize to deep English orthography, remain two critical questions. During reading acquisition, children have to integrate written letters with speech sounds, rapidly shifting their attention from visual to auditory modality...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724914/enhanced-learning-through-multimodal-training-evidence-from-a-comprehensive-cognitive-physical-fitness-and-neuroscience-intervention
#20
N Ward, E Paul, P Watson, G E Cooke, C H Hillman, N J Cohen, A F Kramer, A K Barbey
The potential impact of brain training methods for enhancing human cognition in healthy and clinical populations has motivated increasing public interest and scientific scrutiny. At issue is the merits of intervention modalities, such as computer-based cognitive training, physical exercise training, and non-invasive brain stimulation, and whether such interventions synergistically enhance cognition. To investigate this issue, we conducted a comprehensive 4-month randomized controlled trial in which 318 healthy, young adults were enrolled in one of five interventions: (1) Computer-based cognitive training on six adaptive tests of executive function; (2) Cognitive and physical exercise training; (3) Cognitive training combined with non-invasive brain stimulation and physical exercise training; (4) Active control training in adaptive visual search and change detection tasks; and (5) Passive control...
July 19, 2017: Scientific Reports
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