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Nature neuroscience

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https://www.readbyqxmd.com/read/28543438/humanized-mice-a-brief-overview-on-their-diverse-applications-in-biomedical-research
#1
REVIEW
Shigeyoshi Fujiwara
Model animals naturally differ from humans in various respects and results from the former are not directly translatable to the latter. One approach to address this issue is humanized mice that are defined as mice engrafted with functional human cells or tissues. In humanized mice, we can investigate the development and function of human cells or tissues (including their products encoded by human genes) in the in vivo context of a small animal. As such, humanized mouse models have played important roles that cannot be substituted by other animal models in various areas of biomedical research...
May 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28540750/neurobiology-of-emotions-an-update
#2
Vanderson Esperidião-Antonio, Marilia Majeski-Colombo, Diana Toledo-Monteverde, Glaciele Moraes-Martins, Juliana José Fernandes, Marjorie Bauchiglioni de Assis, Stefânia Montenegro, Rodrigo Siqueira-Batista
The 'nature' of emotions is one of the archaic themes of Western thought, thematized in different cultural manifestations - such as art, science, philosophy, myths and religion -, since Ancient times. In the last decades, the advances in neurosciences have permitted the construction of hypotheses that explain emotions, especially through the studies involving the limbic system. To present an updated discussion about the neurobiology of processes relating to emotions - focusing (1) on the main neural structures that relate to emotions, (2) the paths and circuits of greater relevance, (3) the implicated neurotransmitters, (4) the connections that possess neurovegetative control and (5) the discussion about the main emotions - is the objective of this present article...
May 25, 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28539053/atomic-psychiatry-an-essay
#3
Ian Patrick Paddy Burges Watson
OBJECTIVE: This article aims to address the need to rethink the classification of mental illness and to draw attention to the current use of quantum biology and its likely future use in understanding the nature of mental illness. CONCLUSION: It is desirable to separate out neuroscience and clinical research and to become better acquainted with the concepts of quantum mechanical/quantum biological theory and its contribution to medicine.
May 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28533456/colour-vision-and-coevolution-in-avian-brood-parasitism
#4
REVIEW
Mary Caswell Stoddard, Mark E Hauber
The coevolutionary interactions between avian brood parasites and their hosts provide a powerful system for investigating the diversity of animal coloration. Specifically, reciprocal selection pressure applied by hosts and brood parasites can give rise to novel forms and functions of animal coloration, which largely differ from those that arise when selection is imposed by predators or mates. In the study of animal colours, avian brood parasite-host dynamics therefore invite special consideration. Rapid advances across disciplines have paved the way for an integrative study of colour and vision in brood parasite-host systems...
July 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28529173/what-s-in-a-context-cautions-limitations-and-potential-paths-forward
#5
REVIEW
Shauna M Stark, Zachariah M Reagh, Michael A Yassa, Craig E L Stark
The purpose of memory is to guide current and future behavior based on previous experiences. Part of this process involves either discriminating between or generalizing across similar experiences that contain overlapping conditions (such as space, time, or internal state), which we often conceptualize as "contexts". In this review, we highlight major challenges facing the field as we attempt a neuroscience-based approach to the study of context and its impact on learning and memory. Here, we review some of the methodologies and approaches used to investigate context in both animals and humans, including the neurobiological mechanisms involved...
May 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28524700/what-is-important-in-transdisciplinary-pain-neuroscience-education-a-qualitative-study
#6
Amarins J Wijma, Caroline M Speksnijder, Astrid F Crom-Ottens, J M Corine Knulst-Verlaan, Doeke Keizer, Jo Nijs, C Paul van Wilgen
PURPOSE: The main focus of Pain Neuroscience Education is around changing patients' pain perceptions and minimizing further medical care. Even though Pain Neuroscience Education has been studied extensively, the experiences of patients regarding the Pain Neuroscience Education process remain to be explored. Therefore, the aim of this study was to explore the experiences in patients with non-specific chronic pain. MATERIALS AND METHODS: Fifteen patients with non-specific chronic pain from a transdisciplinary treatment centre were in-depth interviewed...
May 19, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28507240/mathematical-methods-in-medicine-neuroscience-cardiology-and-pathology
#7
José M Amigó, Michael Small
The application of mathematics, natural sciences and engineering to medicine is gaining momentum as the mutual benefits of this collaboration become increasingly obvious. This theme issue is intended to highlight the trend in the case of mathematics. Specifically, the scope of this theme issue is to give a general view of the current research in the application of mathematical methods to medicine, as well as to show how mathematics can help in such important aspects as understanding, prediction, treatment and data processing...
June 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28507239/pulsatile-flow-in-ventricular-catheters-for-hydrocephalus
#8
Á Giménez, M Galarza, U Thomale, M U Schuhmann, J Valero, J M Amigó
The obstruction of ventricular catheters (VCs) is a major problem in the standard treatment of hydrocephalus, the flow pattern of the cerebrospinal fluid (CSF) being one important factor thereof. As a first approach to this problem, some of the authors studied previously the CSF flow through VCs under time-independent boundary conditions by means of computational fluid dynamics in three-dimensional models. This allowed us to derive a few basic principles which led to designs with improved flow patterns regarding the obstruction problem...
June 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28507238/clustering-how-much-bias-do-we-need
#9
Tom Lorimer, Jenny Held, Ruedi Stoop
Scientific investigations in medicine and beyond increasingly require observations to be described by more features than can be simultaneously visualized. Simply reducing the dimensionality by projections destroys essential relationships in the data. Similarly, traditional clustering algorithms introduce data bias that prevents detection of natural structures expected from generic nonlinear processes. We examine how these problems can best be addressed, where in particular we focus on two recent clustering approaches, Phenograph and Hebbian learning clustering, applied to synthetic and natural data examples...
June 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28507228/understanding-principles-of-integration-and-segregation-using-whole-brain-computational-connectomics-implications-for-neuropsychiatric-disorders
#10
REVIEW
Louis-David Lord, Angus B Stevner, Gustavo Deco, Morten L Kringelbach
To survive in an ever-changing environment, the brain must seamlessly integrate a rich stream of incoming information into coherent internal representations that can then be used to efficiently plan for action. The brain must, however, balance its ability to integrate information from various sources with a complementary capacity to segregate information into modules which perform specialized computations in local circuits. Importantly, evidence suggests that imbalances in the brain's ability to bind together and/or segregate information over both space and time is a common feature of several neuropsychiatric disorders...
June 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28502662/-what-not-detectors-help-the-brain-see-in-depth
#11
Nuno R Goncalves, Andrew E Welchman
Binocular stereopsis is one of the primary cues for three-dimensional (3D) vision in species ranging from insects to primates. Understanding how the brain extracts depth from two different retinal images represents a tractable challenge in sensory neuroscience that has so far evaded full explanation. Central to current thinking is the idea that the brain needs to identify matching features in the two retinal images (i.e., solving the "stereoscopic correspondence problem") so that the depth of objects in the world can be triangulated...
May 22, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28497720/neuroscience-and-ethics
#12
S Matthew Liao
A number of people believe that results from neuroscience have the potential to settle seemingly intractable debates concerning the nature, practice, and reliability of moral judgments. In particular, Joshua Greene has argued that evidence from neuroscience can be used to advance the long-standing debate between consequentialism and deontology. This paper first argues that charitably interpreted, Greene's neuroscientific evidence can contribute to substantive ethical discussions by being part of an epistemic debunking argument...
March 2017: Experimental Psychology
https://www.readbyqxmd.com/read/28489422/mechanisms-of-automaticity-and-anticipatory-control-in-fluid-intelligence
#13
Arthur W Joyce
The constructs of fluid (Gf) and crystalized (Gc) intelligence represent an early attempt to describe the mechanisms of problem solving in the vertebrate brain. Modern neuroscience demonstrates that problem solving involves interplay between the mechanisms of automaticity and anticipatory control, enabling nature's elegant solution to the challenges animals face in their environment. Studies of neural functioning are making clear the primary role of cortical-subcortical interactions in the manifestation of intelligent behavior in humans and other vertebrates...
May 10, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28479315/quantum-field-theory-and-coalgebraic-logic-in-theoretical-computer-science
#14
REVIEW
Gianfranco Basti, Antonio Capolupo, Giuseppe Vitiello
We suggest that in the framework of the Category Theory it is possible to demonstrate the mathematical and logical dual equivalence between the category of the q-deformed Hopf Coalgebras and the category of the q-deformed Hopf Algebras in quantum field theory (QFT), interpreted as a thermal field theory. Each pair algebra-coalgebra characterizes a QFT system and its mirroring thermal bath, respectively, so to model dissipative quantum systems in far-from-equilibrium conditions, with an evident significance also for biological sciences...
May 4, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28457867/brain-to-brain-synchrony-tracks-real-world-dynamic-group-interactions-in-the-classroom
#15
Suzanne Dikker, Lu Wan, Ido Davidesco, Lisa Kaggen, Matthias Oostrik, James McClintock, Jess Rowland, Georgios Michalareas, Jay J Van Bavel, Mingzhou Ding, David Poeppel
The human brain has evolved for group living [1]. Yet we know so little about how it supports dynamic group interactions that the study of real-world social exchanges has been dubbed the "dark matter of social neuroscience" [2]. Recently, various studies have begun to approach this question by comparing brain responses of multiple individuals during a variety of (semi-naturalistic) tasks [3-15]. These experiments reveal how stimulus properties [13], individual differences [14], and contextual factors [15] may underpin similarities and differences in neural activity across people...
May 8, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28420449/interpersonal-harm-aversion-as-a-necessary-foundation-for-morality-a-developmental-neuroscience-perspective
#16
Jean Decety, Jason M Cowell
Growing evidence from developmental psychology and social neuroscience emphasizes the importance of third-party harm aversion for constructing morality. A sensitivity to interpersonal harm emerges very early in ontogeny, as reflected in both the capacity for implicit social evaluation and an aversion for antisocial agents. Yet it does not necessarily entail avoidance toward inflicting pain to others. Later, an understanding that harmful actions cause suffering emerges, followed by an integration of rules that can depend on social contexts and cultures...
April 19, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28414047/a-novel-automated-rodent-tracker-art-demonstrated-in-a-mouse-model-of-amyotrophic-lateral-sclerosis
#17
Brett M Hewitt, Moi Hoon Yap, Emma F Hodson-Tole, Aneurin J Kennerley, Paul S Sharp, Robyn A Grant
BACKGROUND: Generating quantitative metrics of rodent locomotion and general behaviours from video footage is important in behavioural neuroscience studies. However, there is not yet a free software system that can process large amounts of video data with minimal user interventions. NEW METHOD: Here we propose a new, automated rodent tracker (ART) that uses a simple rule-based system to quickly and robustly track rodent nose and body points, with minimal user input...
April 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28396096/what-does-semantic-tiling-of-the-cortex-tell-us-about-semantics
#18
Lawrence W Barsalou
Recent use of voxel-wise modeling in cognitive neuroscience suggests that semantic maps tile the cortex. Although this impressive research establishes distributed cortical areas active during the conceptual processing that underlies semantics, it tells us little about the nature of this processing. While mapping concepts between Marr's computational and implementation levels to support neural encoding and decoding, this approach ignores Marr's algorithmic level, central for understanding the mechanisms that implement cognition, in general, and conceptual processing, in particular...
April 7, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28389343/small-world-human-brain-networks-perspectives-and-challenges
#19
REVIEW
Xuhong Liao, Athanasios V Vasilakos, Yong He
Modelling the human brain as a complex network has provided a powerful mathematical framework to characterize the structural and functional architectures of the brain. In the past decade, the combination of non-invasive neuroimaging techniques and graph theoretical approaches enable us to map human structural and functional connectivity patterns (i.e., connectome) at the macroscopic level. One of the most influential findings is that human brain networks exhibit prominent small-world organization. Such a network architecture in the human brain facilitates efficient information segregation and integration at low wiring and energy costs, which presumably results from natural selection under the pressure of a cost-efficiency balance...
April 5, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28388482/face-proprioception-does-not-modulate-access-to-visual-awareness-of-emotional-faces-in-a-continuous-flash-suppression-paradigm
#20
Sebastian Korb, Sofia A Osimo, Tiziano Suran, Ariel Goldstein, Raffaella Ida Rumiati
An important question in neuroscience is which multisensory information, presented outside of awareness, can influence the nature and speed of conscious access to our percepts. Recently, proprioceptive feedback of the hand was reported to lead to faster awareness of congruent hand images in a breaking continuous flash suppression (b-CFS) paradigm. Moreover, a vast literature suggests that spontaneous facial mimicry can improve emotion recognition, even without awareness of the stimulus face. However, integration of visual and proprioceptive information about the face to date has not been tested with CFS...
April 4, 2017: Consciousness and Cognition
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