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https://www.readbyqxmd.com/read/28346865/repetitive-transcranial-magnetic-stimulation-for-the-treatment-of-executive-function-deficits-in-autism-spectrum-disorder-clinical-trial-approach
#1
Stephanie H Ameis, Zafiris J Daskalakis, Daniel M Blumberger, Pushpal Desarkar, Irene Drmic, Donald J Mabbott, Meng-Chuan Lai, Paul E Croarkin, Peter Szatmari
OBJECTIVE: Executive function (EF) deficits in patients with autism spectrum disorder (ASD) are ubiquitous and understudied. Further, there are no effective, neuroscience-based treatments to address this impairing feature of ASD. Repetitive transcranial magnetic stimulation (rTMS) has demonstrated promise in addressing EF deficits in adult neuropsychiatric disorders. This article will outline the design of a novel randomized-controlled trial of bilateral, 20 Hz, rTMS applied to the dorsolateral prefrontal cortex (DLPFC) for treatment of EF deficits in ASD that is currently ongoing...
March 27, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28344069/selective-post-training-time-window-for-memory-consolidation-interference-of-cannabidiol-into-the-prefrontal-cortex-reduced-dopaminergic-modulation-and-immediate-gene-expression-in-limbic-circuits
#2
Matheus Teixeira Rossignoli, Cleiton Lopes-Aguiar, Rafael Naime Ruggiero, Raquel Araujo Do Val da Silva, Lezio Soares Bueno-Junior, Ludmyla Kandratavicius, José Eduardo Peixoto-Santos, José Alexandre Crippa, Jaime Eduardo Cecilio Hallak, Antonio Waldo Zuardi, Raphael Escorsim Szawka, Janete Anselmo-Franci, João Pereira Leite, Rodrigo Neves Romcy-Pereira
The prefrontal cortex (PFC), amygdala and hippocampus display a coordinated activity during acquisition of associative fear memories. Evidence indicates that PFC engagement in aversive memory formation does not progress linearly as previously thought. Instead, it seems to be recruited at specific time windows after memory acquisition, which has implications for the treatment of post-traumatic stress disorders. Cannabidiol (CBD), the major non-psychotomimetic phytocannabinoid of the Cannabis sativa plant, is known to modulate contextual fear memory acquisition in rodents...
March 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28343270/magnetic-field-discrimination-learning-and-memory-in-the-yellow-stingray-urobatis-jamaicensis
#3
Kyle C Newton, Stephen M Kajiura
Elasmobranch fishes (sharks, skates, and rays) have been hypothesized to use the geomagnetic field as a cue for orienting and navigating across a wide range of spatial scales. Magnetoreception has been demonstrated in many invertebrate and vertebrate taxa, including elasmobranchs, but this sensory modality and the cognitive abilities of cartilaginous fishes are poorly studied. Wild caught yellow stingrays, Urobatis jamaicensis (N = 8), underwent conditioning to associate a magnetic stimulus with a food reward in order to elicit foraging behaviors...
March 25, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28342259/age-related-impairments-in-discriminating-perceptually-similar-objects-parallel-those-observed-in-humans
#4
Sarah A Johnson, Sean M Turner, Lindsay A Santacroce, Katelyn N Carty, Leila Shafiq, Jennifer L Bizon, Andrew P Maurer, Sara N Burke
The ability to accurately remember distinct episodes is supported by high-level sensory discrimination. Performance on mnemonic similarity tasks, which test high-level discrimination, declines with advancing age in humans and these deficits have been linked to altered activity in hippocampal CA3 and dentate gyrus. Lesion studies in animal models, however, point to the perirhinal cortex as a brain region critical for sensory discriminations that serve memory. Reconciliation of the contributions of different regions within the cortical-hippocampal circuit requires the development of a discrimination paradigm comparable to the human mnemonic similarity task that can be used in rodents...
March 25, 2017: Hippocampus
https://www.readbyqxmd.com/read/28341611/extinction-memory-is-facilitated-by-methylphenidate-and-regulated-by-dopamine-and-noradrenaline-receptors
#5
Cristiane R G Furini, Jonny A K Behling, Carolina G Zinn, Mara Lize Zanini, Eduardo S Assis Brasil, Luiza Doro Pereira, Ivan Izquierdo, Jociane de C Myskiw
Extinction is defined as the learned inhibition of retrieval and is the mainstay of exposure therapy, which is widely used to treat drug addiction, phobias and fear disorders. The psychostimulant, methylphenidate (MPH) is known to increase extracellular levels of noradrenaline and dopamine by blocking their reuptake and studies have demonstrated that MPH can modulate hippocampal physiology and/or functions including long-term potentiation (LTP), learning and memory. However, the influence of MPH on fear extinction memory has been insufficiently studied...
March 21, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28339575/histaminergic-neurotransmission-as-a-gateway-for-the-cognitive-effect-of-oleoylethanolamide-in-contextual-fear-conditioning
#6
Gustavo Provensi, Roberta Fabbri, Leonardo Munari, Alessia Costa, Elisabetta Baldi, Corrado Bucherelli, Patrizio Blandina, Maria Beatrice Passani
Background: The integrity of the brain histaminergic system is necessary for the unfolding of homeostatic and cognitive processes through the recruitment of alternative circuits with distinct temporal patterns. We recently demonstrated that the fat-sensing lipid mediator oleoylethanolamide indirectly activates histaminergic neurons to exerts its hypophagic effects. The present experiments investigated whether histaminergic neurotransmission is necessary also for the modulation of emotional memory induced by oleoylethanolamide in a contextual fear conditioning paradigm...
January 19, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28337114/precondition-of-right-frontal-region-with-anodal-tdcs-can-restore-the-fear-memory-impairment-induced-by-acpa-in-male-mice
#7
Fariborz Manteghi, Mohammad Nasehi, Mohammad-Reza Zarrindast
Fear memory and learning cause behavioural patterns such as fight or flight responses, which increase survival probability, but unfit processing of fear memory and learning can lead to maladaptive behaviours and maladies such as phobias, Post-Traumatic Stress Disorder (PTSD) and anxiety disorders. The growing prevalence of these maladies shows the need to quest novel methods for their treatment. We used anodal transcranial direct current stimulation (tDCS) on the right frontal region as a precondition neuromodulator and arachidonylcyclopropylamide (ACPA), a selective CB1 cannabinoid receptor agonist, as a fear memory impairing agent to assess their effects on contextual and auditory fear conditioning (reliable model for fear studies)...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28335000/better-than-sham-a-double-blind-placebo-controlled-neurofeedback-study-in-primary-insomnia
#8
Manuel Schabus, Hermann Griessenberger, Maria-Teresa Gnjezda, Dominik P J Heib, Malgorzata Wislowska, Kerstin Hoedlmoser
Neurofeedback training builds upon the simple concept of instrumental conditioning, i.e. behaviour that is rewarded is more likely to reoccur, an effect Thorndike referred to as the 'law of effect'. In the case of neurofeedback, information about specific electroencephalographic activity is fed back to the participant who is rewarded whenever the desired electroencephalography pattern is generated. If some kind of hyperarousal needs to be addressed, the neurofeedback community considers sensorimotor rhythm neurofeedback as the gold standard...
February 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28333613/collaborative-management-of-neurocognitive-disorders-in-primary-care-explorations-of-an-attempt-at-culture-change
#9
Lewis Mehl-Madrona, Barbara Mainguy
INTRODUCTION: Minor neurocognitive disorder (MiND; previously mild cognitive impairment) is a transitional zone between normal cognitive function and early stages of major neurocognitive disorder (previously called dementia). Of people with MiND, 5% to 10% progress to major neurocognitive disorder. Simple interventions such as memory activities, balance exercises, and anti-inflammatory diets have been shown to improve cognitive ability. Also, education and support in group settings have proved beneficial for patients with MiND...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28332914/effects-of-a-working-memory-training-program-in-preschoolers-with-symptoms-of-attention-deficit-hyperactivity-disorder
#10
Agnese Capodieci, Maria Laura Gola, Cesare Cornoldi, Anna Maria Re
INTRODUCTION: Preschoolers with attention-deficit/hyperactivity disorder (ADHD) have been found to exhibit impairments on neuropsychological measures of working memory (WM). As WM is an important predictor of future learning abilities, early intervention could help to prevent severe problems. The purpose of this research was to ascertain the efficacy of an intervention for training WM in 5-year-old children with symptoms of ADHD. METHOD: Thirty-four children with symptoms of ADHD were randomly divided into two groups: One was assigned to the WM training condition, and the other continued normal class activities...
March 23, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28330743/temporal-dynamics-of-immediate-early-gene-expression-during-cellular-consolidation-of-spatial-memory
#11
Daniel N Barry, Sean Commins
The consolidation of newly acquired memories on a cellular level is thought to take place in the first few hours following learning. This process is dependent on de novo protein synthesis during this time, which ultimately leads to long-term structural and functional neuronal changes and the stabilisation of a memory trace. Immediate early genes (IEGs) are rapidly expressed in neurons following learning, and previous research has suggested more than one wave of IEG expression facilitates consolidation in the hours following learning...
March 19, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28329859/the-impact-of-three-cognitive-training-programs-on-driving-cessation-across-10-years-a-randomized-controlled-trial
#12
Lesley A Ross, Sara A Freed, Jerri D Edwards, Christine B Phillips, Karlene Ball
Purpose of the Study: Driving is important for older adults' health and well-being, yet little research has examined interventions to maintain driving mobility. As fluid cognitive abilities are strongly linked to driving, targeted cognitive training interventions may impact driving mobility longitudinally. This study assessed the effects of three different cognitive training programs (reasoning, speed of processing, and memory) on driving cessation in older adults across 10 years (n = 2,390)...
October 10, 2016: Gerontologist
https://www.readbyqxmd.com/read/28329757/neural-ensemble-dynamics-underlying-a-long-term-associative-memory
#13
Benjamin F Grewe, Jan Gründemann, Lacey J Kitch, Jerome A Lecoq, Jones G Parker, Jesse D Marshall, Margaret C Larkin, Pablo E Jercog, Francois Grenier, Jin Zhong Li, Andreas Lüthi, Mark J Schnitzer
The brain's ability to associate different stimuli is vital for long-term memory, but how neural ensembles encode associative memories is unknown. Here we studied how cell ensembles in the basal and lateral amygdala encode associations between conditioned and unconditioned stimuli (CS and US, respectively). Using a miniature fluorescence microscope, we tracked the Ca(2+) dynamics of ensembles of amygdalar neurons during fear learning and extinction over 6 days in behaving mice. Fear conditioning induced both up- and down-regulation of individual cells' CS-evoked responses...
March 22, 2017: Nature
https://www.readbyqxmd.com/read/28326042/examining-the-roles-of-reasoning-and-working-memory-in-predicting-casual-game-performance-across-extended-gameplay
#14
Michael B Kranz, Pauline L Baniqued, Michelle W Voss, Hyunkyu Lee, Arthur F Kramer
The variety and availability of casual video games presents an exciting opportunity for applications such as cognitive training. Casual games have been associated with fluid abilities such as working memory (WM) and reasoning, but the importance of these cognitive constructs in predicting performance may change across extended gameplay and vary with game structure. The current investigation examined the relationship between cognitive abilities and casual game performance over time by analyzing first and final session performance over 4-5 weeks of game play...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28324119/the-impact-of-cognitive-training-in-substance-use-disorder-the-effect-of-working-memory-training-on-impulse-control-in-methamphetamine-users
#15
Samantha J Brooks, L Wiemerslage, K H Burch, S A Maiorana, E Cocolas, H B Schiöth, K Kamaloodien, D J Stein
OBJECTIVES: Impulsivity is a vulnerability trait for poor self-regulation in substance use disorder (SUD). Working memory (WM) training improves impulsivity and self-regulation in psychiatric disorders. Here we test WM training in methamphetamine use disorder (MUD). METHODS: There are 15 MUD patients receiving inpatient treatment as usual (TAU) and 20 who additionally completed WM cognitive training (CT) and 25 healthy controls (HC). MANCOVA repeated measures analyses examined changes in impulsivity and self-regulation at baseline and after 4 weeks...
March 21, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28323668/mindfulness-meditation-training-and-executive-control-network-resting-state-functional-connectivity-a-randomized-controlled-trial
#16
Adrienne A Taren, Peter J Gianaros, Carol M Greco, Emily K Lindsay, April Fairgrieve, Kirk Warren Brown, Rhonda K Rosen, Jennifer L Ferris, Erica Julson, Anna L Marsland, J David Creswell
OBJECTIVE: Mindfulness meditation training has been previously shown to enhance behavioral measures of executive control (e.g. attention, working memory, cognitive control), but the neural mechanisms underlying these improvements are largely unknown. Here, we test whether mindfulness training interventions foster executive control by strengthening functional connections between dorsolateral prefrontal cortex (dlPFC) - a hub of the executive control network - and frontoparietal regions that coordinate executive function...
March 20, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28323202/enhanced-structural-connectivity-within-a-brain-sub-network-supporting-working-memory-and-engagement-processes-after-cognitive-training
#17
Francisco J Román, Yasser Iturria-Medina, Kenia Martínez, Sherif Karama, Miguel Burgaleta, Alan C Evans, Susanne M Jaeggi, Roberto Colom
The structural connectome provides relevant information about experience and training-related changes in the brain. Here, we used network-based statistics (NBS) and graph theoretical analyses to study structural changes in the brain as a function of cognitive training. Fifty-six young women were divided in two groups (experimental and control). We assessed their cognitive function before and after completing a working memory intervention using a comprehensive battery that included fluid and crystallized abilities, working memory and attention control, and we also obtained structural MRI images...
March 16, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28322578/interview-with-amr-h-sawalha-epigenetics-and-autoimmunity
#18
Amr H Sawalha
Amr H Sawalha is Professor of Internal Medicine and Marvin and Betty Danto Research Professor of Connective Tissue Research at the University of Michigan, Department of Internal Medicine, Division of Rheumatology. He also holds faculty appointments at the Center for Computational Medicine and Bioinformatics and the Graduate Program in Immunology at the University of Michigan. He was recently appointed as Guest Professor at Central South University in Changsha, China. He received his medical degree from Jordan University of Science and Technology and completed his residency training in internal medicine at the University of Oklahoma Health Sciences Center, and his fellowship in rheumatology at the University of Michigan...
March 21, 2017: Epigenomics
https://www.readbyqxmd.com/read/28321178/post-training-inactivation-of-the-anterior-thalamic-nuclei-impairs-spatial-performance-on-the-radial-arm-maze
#19
Ryan E Harvey, Shannon M Thompson, Lilliana M Sanchez, Ryan M Yoder, Benjamin J Clark
The limbic thalamus, specifically the anterior thalamic nuclei (ATN), contains brain signals including that of head direction cells, which fire as a function of an animal's directional orientation in an environment. Recent work has suggested that this directional orientation information stemming from the ATN contributes to the generation of hippocampal and parahippocampal spatial representations, and may contribute to the establishment of unique spatial representations in radially oriented tasks such as the radial arm maze...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28318784/kinetics-of-endogenous-camkii-required-for-synaptic-plasticity-revealed-by-optogenetic-kinase-inhibitor
#20
Hideji Murakoshi, Myung Eun Shin, Paula Parra-Bueno, Erzsebet M Szatmari, Akihiro C E Shibata, Ryohei Yasuda
Elucidating temporal windows of signaling activity required for synaptic and behavioral plasticity is crucial for understanding molecular mechanisms underlying these phenomena. Here, we developed photoactivatable autocamtide inhibitory peptide 2 (paAIP2), a genetically encoded, light-inducible inhibitor of CaMKII activity. The photoactivation of paAIP2 in neurons for 1-2 min during the induction of LTP and structural LTP (sLTP) of dendritic spines inhibited these forms of plasticity in hippocampal slices of rodents...
March 8, 2017: Neuron
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