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Mobbing behavior

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https://www.readbyqxmd.com/read/28215749/steady-state-centrifugal-input-via-the-lateral-olfactory-tract-modulates-spontaneous-activity-in-the-rat-main-olfactory-bulb
#1
Neil C Ford, Edwin R Griff
Mitral and tufted cells in the main olfactory bulb (MOB) of anesthetized rats exhibit vigorous spontaneous activity, action potentials produced in the absence of odor stimuli. The central hypothesis of this paper is that tonic activity of centrifugal input to the MOB modulates the spontaneous activity of MOB neurons. The spontaneous activity of centrifugal fibers causes a baseline of steady-state neurotransmitter release, and odor stimulation produces transient changes in the resulting spontaneous activity...
February 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28087337/tunicamycin-impairs-olfactory-learning-and-synaptic-plasticity-in-the-olfactory-bulb
#2
Jia Tong, Fumino Okutani, Yoshihiro Murata, Mutsuo Taniguchi, Toshiharu Namba, Yu-Jie Wang, Hideto Kaba
Tunicamycin (TM) induces endoplasmic reticulum (ER) stress and inhibits N-glycosylation in cells. ER stress is associated with neuronal death in neurodegenerative disorders, such as Parkinson's disease and Alzheimer's disease, and most patients complain of the impairment of olfactory recognition. Here we examined the effects of TM on aversive olfactory learning and the underlying synaptic plasticity in the main olfactory bulb (MOB). Behavioral experiments demonstrated that the intrabulbar infusion of TM disabled aversive olfactory learning without affecting short-term memory...
March 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/28036236/ensemble-perception-of-dynamic-emotional-groups
#3
Elric Elias, Michael Dyer, Timothy D Sweeny
Crowds of emotional faces are ubiquitous, so much so that the visual system utilizes a specialized mechanism known as ensemble coding to see them. In addition to being proximally close, members of emotional crowds, such as a laughing audience or an angry mob, often behave together. The manner in which crowd members behave-in sync or out of sync-may be critical for understanding their collective affect. Are ensemble mechanisms sensitive to these dynamic properties of groups? Here, observers estimated the average emotion of a crowd of dynamic faces...
February 2017: Psychological Science
https://www.readbyqxmd.com/read/28031800/functional-traits-determine-heterospecific-use-of-risk-related-social-information-in-forest-birds-of-tropical-south-east-asia
#4
Fangyuan Hua, Ding Li Yong, Muhammad Nazri Janra, Liza M Fitri, Dewi Prawiradilaga, Kathryn E Sieving
In birds and mammals, mobbing calls constitute an important form of social information that can attract numerous sympatric species to localized mobbing aggregations. While such a response is thought to reduce the future predation risk for responding species, there is surprisingly little empirical evidence to support this hypothesis. One way to test the link between predation risk reduction and mobbing attraction involves testing the relationship between species' attraction to mobbing calls and the functional traits that define their vulnerability to predation risk...
December 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28003347/olfactory-bulb-deep-short-axon-cells-mediate-widespread-inhibition-of-tufted-cell-apical-dendrites
#5
Shawn D Burton, Greg LaRocca, Annie Liu, Claire E J Cheetham, Nathaniel N Urban
: In the main olfactory bulb (MOB), the first station of sensory processing in the olfactory system, GABAergic interneuron signaling shapes principal neuron activity to regulate olfaction. Lack of known selective markers for MOB interneurons has strongly impeded cell type-selective investigation of interneuron function, however. Here, we identify the first selective marker of glomerular layer-projecting deep short-axon cells (GL-dSACs) and systematically investigate the structure, abundance, intrinsic physiology, feedforward sensory input, neuromodulation, synaptic output, and functional role of GL-dSACs in the mouse MOB circuit...
December 21, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27686623/non-specific-alarm-calls-trigger-mobbing-behavior-in-hainan-gibbons-nomascus-hainanus
#6
Huaiqing Deng, Kai Gao, Jiang Zhou
Alarm calls are important defensive behaviors. Here, we report the acoustic spectrum characteristics of alarm calls produced by Hainan gibbons (Nomascus hainanus) inhabiting Bawangling National Nature Reserve in Hainan, China. Analysis of call data collected from 2002-2014 shows that alarm calls are emitted by all family group members, except infants. Alarm behavior included simple short alarming calls (7-10 min) followed by longer variable-frequency mobbing calls lasting 5-12 min. The duration of individual alarming and mobbing calls was 0...
September 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27520022/mobbing-and-its-impact-on-interpersonal-relationships-at-the-workplace
#7
Ana Lúcia da Silva João, António Fernando Saldanha Portelada
Mobbing is characterized by the repetition, over a long period of time, of hostile behavior and unethical conduct carried out by a hierarchical superior or co-worker, against someone's physic and mental integrity, endangering one's job or disturbing the work environment. This current investigative study intends to assess the existence, frequency, and intensity of mobbing within the Portuguese nurse population, as well as its impact on their well-being and interpersonal relationships. The study carried out was quantitative, correlational, and cross-sectional...
August 12, 2016: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/27465909/uptake-of-the-centers-for-medicare-and-medicaid-obesity-benefit-2012-2013
#8
John A Batsis, Julie P W Bynum
OBJECTIVE: To assess the use of the Medicare Obesity Benefit (MOB) by a licensed physician or associate provider in an outpatient setting in older adults. METHODS: A serial cross-sectional analysis of fee-for-service Medicare claims (2012 and 2013) was used to assess the use of the MOB. Number and proportion of Medicare beneficiaries over age 65 using the benefit were assessed. Correlation between state-obesity rates and MOB uptake was determined based on state-specific obesity prevalence data from the Behavioral Risk Factor Surveillance System...
September 2016: Obesity
https://www.readbyqxmd.com/read/27417548/understory-avifauna-exhibits-altered-mobbing-behavior-in-tropical-forest-degraded-by-selective-logging
#9
Fangyuan Hua, Kathryn E Sieving
In understanding the impacts of selective logging on biodiversity, relatively little is known about the critical behavioral link between altered forest conditions and population persistence. Predator-mobbing is a widespread anti-predator behavior in birds that expresses a well-known trade-off influencing prey survival under predation risk. Here, we ask whether the predator-mobbing behavior of understory forest birds is altered by selective logging and associated forest structural changes in the highly endangered lowland rainforest of Sumatra...
November 2016: Oecologia
https://www.readbyqxmd.com/read/27412683/exposure-to-young-preferentially-activates-adult-born-neurons-in-the-main-olfactory-bulb-of-sheep-mothers
#10
R Corona, M Meurisse, F Cornilleau, C Moussu, M Keller, Frédéric Lévy
New neurons are continuously added to the main olfactory bulb (MOB) of the mammalian brain. While their function has been demonstrated in olfactory learning, it is less known in an ethological context such as mothering. We addressed this question by investigating whether in sheep mothers the adult-generated olfactory neurons contribute to the processing of odors involved in attraction to lambs and in memorization of its individual signature. Parturient ewes, after having 2 days of contact with their lamb and being separated from them for 3 h, were exposed for 2 h either to their own lamb, an unfamiliar lamb or a familiar adult sheep and then sacrificed...
July 13, 2016: Brain Structure & Function
https://www.readbyqxmd.com/read/27351689/-effectiveness-of-school-based-interventions-for-the-prevention-and-or-reduction-of-psychosocial-problems-among-children-and-adolescents-a-review-of-reviews
#11
S Muellmann, K Landgraf-Rauf, T Brand, H Zeeb, C R Pischke
Objective: To summarize the current evidence on the effectiveness of school-based interventions for the maintenance of mental health and the prevention of psychosocial problems among pupils. Methods: A systematic literature search of reviews published between 2007 and 2015 was carried out. Databases searched included Medline, PsycINFO, Campbell Library, Cochrane Library, NICE, ERIC, and Web of Science. Study selection, data extraction, and quality assessment (using AMSTAR criteria) were performed by 2 independent reviewers...
June 28, 2016: Das Gesundheitswesen
https://www.readbyqxmd.com/read/27305041/participation-of-the-olfactory-bulb-in-circadian-organization-during-early-postnatal-life-in-rabbits
#12
Erika Navarrete, Juan Roberto Ortega-Bernal, Lucero Trejo-Muñoz, Georgina Díaz, Rodrigo Montúfar-Chaveznava, Ivette Caldelas
Experimental evidence indicates that during pre-visual stages of development in mammals, circadian regulation is still not under the control of the light-entrainable hypothalamic pacemaker, raising the possibility that the circadian rhythmicity that occurs during postnatal development is under the control of peripheral oscillators, such as the main olfactory bulb (MOB). We evaluated the outcome of olfactory bulbectomy on the temporal pattern of core body temperature and gross locomotor activity in newborn rabbits...
2016: PloS One
https://www.readbyqxmd.com/read/27216894/estradiol-induced-neurogenesis-in-the-female-accessory-olfactory-bulb-is-required-for-the-learning-of-the-male-odor
#13
Maïna Brus, Anne-Charlotte Trouillet, Vincent Hellier, Julie Bakker
Odors processed by the main and accessory olfactory bulbs (MOB, AOB) are important for sexual behavior. Interestingly, both structures continue to receive new neurons during adulthood. A role for olfactory neurogenesis in sexual behavior in female mice has recently been shown and gonadal hormones such as estradiol can modulate adult neurogenesis. Therefore, we wanted to determine the role of estradiol in learning the odors of sexual partners and in the adult neurogenesis of female aromatase knockout mice (ArKO), unable to produce estradiol...
August 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/26973447/sexual-stimulation-increases-the-survival-of-new-cells-in-the-accessory-olfactory-bulb-of-the-male-rat
#14
Nancy M Unda, Wendy Portillo, Rebeca Corona, Raúl G Paredes
Sexual behavior in rodents is modulated by the olfactory system. The olfactory bulb (OB) is a structure that undergoes continues neurogenesis in adulthood. We have previously shown that 15 days after males rats pace the sexual interaction and ejaculate 1 or 3 times, there is an increase in the density of new cells that reach the accessory olfactory bulb (AOB). The aim of the present study was to evaluate if sexual behavior in male rats increases the density of new neurons that survive 45 days after sexual behavior in the AOB and in the main OB (MOB)...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/26955325/sexual-behavior-increases-cell-proliferation-in-the-rostral-migratory-stream-and-promotes-the-differentiation-of-the-new-cells-into-neurons-in-the-accessory-olfactory-bulb-of-female-rats
#15
Rebeca Corona, Socorro Retana-Márquez, Wendy Portillo, Raúl G Paredes
We have previously demonstrated, that 15 days after female rats pace the sexual interaction, there is an increase in the number of new cells that reach the granular cell layer (GrL) of the accessory olfactory bulb (AOB). The aim of the present study was to evaluate, if the first sexual experience in the female rat increases cell proliferation in the subventricular zone (SVZ) and the rostral migratory stream (RMS). We also tested if this behavior promotes the survival of the new cells that integrate into the main olfactory bulb (MOB) and AOB 45 days after the behavioral test...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/26886252/workplace-mobbing-how-the-victim-s-coping-behavior-influences-bystander-responses
#16
Roelie Mulder, Arjan E R Bos, Mieneke Pouwelse, Karen van Dam
Victims of workplace mobbing show diverse coping behavior. We investigated the impact of this behavior on bystander cognitions, emotions, and helping toward the victim, integrating coping literature with attribution theory. Adult part-time university students (N = 161) working at various organizations participated in a study with a 3(Coping: approach/avoidance/neutral) × 2(Gender Victim: male/female) × 2(Gender Bystander: male/female) design. Victims showing approach (vs. avoidance) coping were considered to be more self-reliant and less responsible for the continuation of the mobbing, and they elicited less anger...
2017: Journal of Social Psychology
https://www.readbyqxmd.com/read/26595922/psychological-parameters-for-crowd-simulation-from-audiences-to-mobs
#17
Funda Durupinar, Ugur Gudukbay, Aytek Aman, Norman I Badler
In the social psychology literature, crowds are classified as audiences and mobs. Audiences are passive crowds, whereas mobs are active crowds with emotional, irrational and seemingly homogeneous behavior. In this study, we aim to create a system that enables the specification of different crowd types ranging from audiences to mobs. In order to achieve this goal we parametrize the common properties of mobs to create collective misbehavior. Because mobs are characterized by emotionality, we describe a framework that associates psychological components with individual agents comprising a crowd and yields emergent behaviors in the crowd as a whole...
September 2016: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/26467338/fatal-attack-on-black-tufted-ear-marmosets-callithrix-penicillata-by-a-boa-constrictor-a-simultaneous-assault-on-two-juvenile-monkeys
#18
Danilo Simonini Teixeira, Edmilson dos Santos, Silvana Gomes Leal, Andrea Karla de Jesus, Waldemir Paixão Vargas, Irapuan Dutra, Marilia Barros
Here we report the first witnessed attack on a marmoset by a constrictor snake. The incident occurred mid-morning in a gallery forest within an altered landscape of the Cerrado region of central Brazil and refers to a fatal attack by a Boa constrictor on two juvenile black-tufted-ear marmosets (Callithrix penicillata) simultaneously. The snake captured both individuals at a height of ~ 4 m while a group of eight marmosets traveled through the subcanopy. The actual strike was not seen. After 2 min, the boa fell to the ground with both marmosets in its coils and proceeded to kill one animal at a time through constriction...
January 2016: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/26375939/healthy-variability-in-organizational-behavior-empirical-evidence-and-new-steps-for-future-research
#19
José Navarro, Rita Rueff-Lopes
The healthy variability thesis suggests that healthy systems function in a complex manner over time. This thesis is well-established in fields like physiology. In the field of organizational behavior, however, this relation is only starting to be explored. The objective of this article is threefold: First, we aim to provide a comprehensive review of the healthy variability thesis including some of the most important findings across different fields, with a focus on evidences from organizational research in work motivation and performance...
October 2015: Nonlinear Dynamics, Psychology, and Life Sciences
https://www.readbyqxmd.com/read/26353118/distress-calls-of-a-fast-flying-bat-molossus-molossus-provoke-inspection-flights-but-not-cooperative-mobbing
#20
Gerald Carter, Diana Schoeppler, Marie Manthey, Mirjam Knörnschild, Annette Denzinger
Many birds and mammals produce distress calls when captured. Bats often approach speakers playing conspecific distress calls, which has led to the hypothesis that bat distress calls promote cooperative mobbing. An alternative explanation is that approaching bats are selfishly assessing predation risk. Previous playback studies on bat distress calls involved species with highly maneuverable flight, capable of making close passes and tight circles around speakers, which can look like mobbing. We broadcast distress calls recorded from the velvety free-tailed bat, Molossus molossus, a fast-flying aerial-hawker with relatively poor maneuverability...
2015: PloS One
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