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Neuroethology

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https://www.readbyqxmd.com/read/29346088/intense-olfactory-stimulation-blocks-seizures-in-an-experimental-model-of-epilepsy
#1
Polianna Delfino-Pereira, Poliana Bertti-Dutra, Eduardo Henrique de Lima Umeoka, José Antônio Cortes de Oliveira, Victor Rodrigues Santos, Artur Fernandes, Simone Saldanha Marroni, Flávio Del Vecchio, Norberto Garcia-Cairasco
There are reports of patients whose epileptic seizures are prevented by means of olfactory stimulation. Similar findings were described in animal models of epilepsy, such as the electrical kindling of amygdala, where olfactory stimulation with toluene (TOL) suppressed seizures in most rats, even when the stimuli were 20% above the threshold to evoke seizures in already kindled animals. The Wistar Audiogenic Rat (WAR) strain is a model of tonic-clonic seizures induced by acute acoustic stimulation, although it also expresses limbic seizures when repeated acoustic stimulation occurs - a process known as audiogenic kindling (AK)...
January 12, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29329942/variational-neuroethology-answering-further-questions-reply-to-comments-on-answering-schr%C3%A3-dinger-s-question-a-free-energy-formulation
#2
Maxwell J D Ramstead, Paul B Badcock, Karl J Friston
No abstract text is available yet for this article.
January 8, 2018: Physics of Life Reviews
https://www.readbyqxmd.com/read/29325935/upgrading-gestalt-psychology-with-variational-neuroethology-the-case-of-perceptual-pleasures-comment-on-answering-schr%C3%A3-dinger-s-question-a-free-energy-formulation-by-m-j-desormeau-ramstead-et-al
#3
https://www.readbyqxmd.com/read/29208231/editorial-overview-recent-advances-in-insect-neuroethology-from-sensory-processing-to-circuits-controlling-internal-states
#4
EDITORIAL
Stanley Heinze, Anne C von Philipsborn
No abstract text is available yet for this article.
December 2017: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29191411/a-plea-for-variational-neuroethology-comment-on-answering-schr%C3%A3-dinger-s-question-a-free-energy-formulation-by-m-j-desormeau-ramstead-et-al
#5
Jean Daunizeau
No abstract text is available yet for this article.
November 24, 2017: Physics of Life Reviews
https://www.readbyqxmd.com/read/29187614/early-career-researchers-an-interview-with-paloma-gonzalez-bellido
#6
(no author information available yet)
Paloma Gonzalez Bellido is a Lecturer in the Department of Physiology, Development and Neuroscience at the University of Cambridge, where she investigates insect vision. She received her Bachelor's degree in Marine Biology from the University of Queensland, Australia, before moving to the University of Sheffield for her PhD with Mikko Juusola, which she completed in 2009. Paloma has been awarded a Cozzarelli Prize and her research has been recognised by the Society for Neuroethology and the Society for Experimental Biology...
December 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29123249/crickets-alter-wind-elicited-escape-strategies-depending-on-acoustic-context
#7
Matasaburo Fukutomi, Hiroto Ogawa
Acoustic signals trigger various behaviours in insects such as courtship or escape from predators. However, it remains unknown whether insects utilize acoustic signals to recognize environmental contexts. The cricket is a prominent model insect for neuroethological studies on acoustic behaviour because female crickets exhibit positive phonotaxis in response to male calling songs, and flying crickets display avoidance behaviour for high-frequency sounds such as echolocation call of bats. The carrier frequency of these sounds is a major factor in determining whether they initiate these acoustic behaviours...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29111184/neuron-protective-effect-of-subanesthestic-dosage-ketamine-on-mice-of-parkinson-s-disease
#8
Jun-Chao Fan, Jun-Jie Song, Ying Wang, Ying Chen, Dao-Xian Hong
OBJECTIVE: To discuss the neuron-protective effect and possible mechanism of subanesthestic-dosage ketamine on Parkinson's disease mice induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. METHODS: A total of 30 mice were divided equally into three groups, model control group (MC group), ketamine treatment group (KT group), and blank control group (BC group), respectively. The Parkinson's disease mice of MC group and KT groups were established by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (20 mg/kg/d), while mice in KT group were treated by intraperitoneal injection of subanesthestic-dosage ketamine (8 mg/kg)...
October 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/29029962/answering-schr%C3%A3-dinger-s-question-a-free-energy-formulation
#9
REVIEW
Maxwell James Désormeau Ramstead, Paul Benjamin Badcock, Karl John Friston
The free-energy principle (FEP) is a formal model of neuronal processes that is widely recognised in neuroscience as a unifying theory of the brain and biobehaviour. More recently, however, it has been extended beyond the brain to explain the dynamics of living systems, and their unique capacity to avoid decay. The aim of this review is to synthesise these advances with a meta-theoretical ontology of biological systems called variational neuroethology, which integrates the FEP with Tinbergen's four research questions to explain biological systems across spatial and temporal scales...
September 20, 2017: Physics of Life Reviews
https://www.readbyqxmd.com/read/28943837/solving-the-neurogenesis-puzzle-looking-for-pieces-outside-the-traditional-box
#10
Mariela Faykoo-Martinez, Ilapreet Toor, Melissa M Holmes
The vast majority of what is considered fact about adult neurogenesis comes from research on laboratory mice and rats: where it happens, how it works, what it does. However, this relative exclusive focus on two rodent species has resulted in a bias on how we think about adult neurogenesis. While it might not prevent us from making conclusions about the evolutionary significance of the process or even prevent us from generalizing to diverse mammals, it certainly does not help us achieve these outcomes. Here, we argue that there is every reason to expect striking species differences in adult neurogenesis: where it happens, how it works, what it does...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28919868/the-affective-core-of-the-self-a-neuro-archetypical-perspective-on-the-foundations-of-human-and-animal-subjectivity
#11
REVIEW
Antonio Alcaro, Stefano Carta, Jaak Panksepp
Psychologists usually considered the "Self" as an object of experience appearing when the individual perceives its existence within the conscious field. In accordance with such a view, the self-representing capacity of the human mind has been related to corticolimbic learning processes taking place within individual development. On the other hand, Carl Gustav Jung considered the Self as the core of our personality, in its conscious and unconscious aspects, as well as in its actual and potential forms. According to Jung, the Self originates from an inborn dynamic structure integrating the essential drives of our "brain-mind," and leading both to instinctual behavioral actions and to archetypal psychological experiences...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28820864/diffusion-kurtosis-imaging-and-pathology-in-spinal-cord-ischemia-reperfusion-injury-in-rabbits-a-case-control-study
#12
Daowei Li, Xiaoming Wang
BACKGROUND The aim of this study was to evaluate the application of diffusion kurtosis imaging (DKI) in spinal cord ischemia/reperfusion (SCI/R) injury and to explore its association with pathology. MATERIAL AND METHODS Japanese male long-eared rabbits were chosen and divided into 7 groups (8 rabbits in each group): control group (C group), sham-operation control group (S group), and 5 experimental groups (E-2 h group, E-24 h group, E-48 h group, E-7 d group, and E-14 d group). Tarlov scoring and immunohistochemical staining were used to assess hindlimb motor function and observe the expression of glial fiber acidic protein (GFAP), respectively...
August 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28707159/introduction-to-the-special-issue-of-jcp-a-featuring-the-presidential-symposium-at-the-international-congress-of-neuroethology-icn-2016-in-montevideo
#13
EDITORIAL
P M Narins
No abstract text is available yet for this article.
October 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28690439/grasshopper-dcmd-an-undergraduate-electrophysiology-lab-for-investigating-single-unit-responses-to-behaviorally-relevant-stimuli
#14
Dieu My T Nguyen, Mark Roper, Stanislav Mircic, Robert M Olberg, Gregory J Gage
Avoiding capture from a fast-approaching predator is an important survival skill shared by many animals. Investigating the neural circuits that give rise to this escape behavior can provide a tractable demonstration of systems-level neuroscience research for undergraduate laboratories. In this paper, we describe three related hands-on exercises using the grasshopper and affordable technology to bring neurophysiology, neuroethology, and neural computation to life and enhance student understanding and interest...
2017: Journal of Undergraduate Neuroscience Education: JUNE: a Publication of FUN, Faculty for Undergraduate Neuroscience
https://www.readbyqxmd.com/read/28606853/proteomic-analysis-of-the-kissing-bug-rhodnius-prolixus-antenna
#15
Daniele S Oliveira, Nathalia F Brito, Fabio C S Nogueira, Monica F Moreira, Walter S Leal, Marcia R Soares, Ana C A Melo
Reception of odorants is essential in insects' life since the chemical signals in the environment (=semiochemicals) convey information about availability of hosts for a blood meal, mates for reproduction, sites for oviposition and other relevant information for fitness in the environment. Once they reach the antennae, these semiochemicals bind to odorant-binding proteins and are transported through the sensillar lymph until reach the odorant receptors. Such perireceptor events, particularly the interactions with transport proteins, are the liaison between the external environment and the entire neuroethological system and, therefore, a potential target to disrupt insect chemical communication...
July 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28551870/linking-neuroethology-to-the-chemical-biology-of-natural-products-interactions-between-cone-snails-and-their-fish-prey-a-case-study
#16
REVIEW
Baldomero M Olivera, Shrinivasan Raghuraman, Eric W Schmidt, Helena Safavi-Hemami
From a biological perspective, a natural product can be defined as a compound evolved by an organism for chemical interactions with another organism including prey, predator, competitor, pathogen, symbiont or host. Natural products hold tremendous potential as drug leads and have been extensively studied by chemists and biochemists in the pharmaceutical industry. However, the biological purpose for which a natural product evolved is rarely addressed. By focusing on a well-studied group of natural products-venom components from predatory marine cone snails-this review provides a rationale for why a better understanding of the evolution, biology and biochemistry of natural products will facilitate both neuroscience and the potential for drug leads...
September 2017: Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology
https://www.readbyqxmd.com/read/28539397/variations-on-a-theme-species-differences-in-synaptic-connectivity-do-not-predict-central-pattern-generator-activity
#17
Charuni A Gunaratne, Akira Sakurai, Paul S Katz
A fundamental question in comparative neuroethology is the extent to which synaptic wiring determines behavior vs. the extent to which it is constrained by phylogeny. We investigated this by examining the connectivity and activity of homologous neurons in different species. Melibe leonina and Dendronotus iris (Mollusca, Gastropoda, Nudibranchia) have homologous neurons and exhibit homologous swimming behaviors consisting of alternating left-right (LR) whole body flexions. Yet, a homologous interneuron (Si1) differs between the two species in its participation in the swim motor pattern (SMP) and synaptic connectivity...
August 1, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28506440/the-wistar-audiogenic-rat-war-strain-and-its-contributions-to-epileptology-and-related-comorbidities-history-and-perspectives
#18
Norberto Garcia-Cairasco, Eduardo H L Umeoka, José A Cortes de Oliveira
In the context of modeling epilepsy and neuropsychiatric comorbidities, we review the Wistar Audiogenic Rat (WAR), first introduced to the neuroscience international community more than 25years ago. The WAR strain is a genetically selected reflex model susceptible to audiogenic seizures (AS), acutely mimicking brainstem-dependent tonic-clonic seizures and chronically (by audiogenic kindling), temporal lobe epilepsy (TLE). Seminal neuroethological, electrophysiological, cellular, and molecular protocols support the WAR strain as a suitable and reliable animal model to study the complexity and emergent functions typical of epileptogenic networks...
June 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28429887/effects-of-aluminium-on-long-term-memory-in-rats-and-on-sirt1-mediating-the-transcription-of-creb-dependent-gene-in-hippocampus
#19
Dongying Yan, Cuihong Jin, Yang Cao, Lulu Wang, Xiaobo Lu, Jinghua Yang, Shengwen Wu, Yuan Cai
Epidemiological investigations have shown that aluminium (Al) is an important neurotoxicant which can be absorbed by organisms via various routes. Previous studies have confirmed that exposure to Al could cause neurodegenerative diseases, decline CREB phosphorylation and then down-regulate the transcription and protein expression of its target genes including BDNF. However, recent studies revealed that CREB activation alone was far from enough to activate the expression of long-term memory (LTM)-related genes; there might be other regulatory factors involved in this process...
April 21, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28274488/the-neuroethological-paradox-of-animal-consciousness
#20
Yoram Gutfreund
The more advanced our understanding of the brain of an animal is, the less likely that this animal is a conscious being. This provocative logical paradox is explained and analyzed, leading to the conclusion that to advance understanding of animal consciousness it is necessary to resolve first how our consciousness is produced by our brain.
April 2017: Trends in Neurosciences
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