774 research outputs found
The particularity of emotional words. A grounded approach
This work focuses on emotional concepts. We define concepts as patterns of neural activation
that re-enact a given external or internal experience, for example the interoceptive experience related to
fear. Concepts are mediated and expressed through words. In the following, we will use âwordsâ to refer
to word meanings, assuming that words mediate underlying concepts. Since emotional concepts and the
words that mediate them are less related to the physical environment than concrete ones, at first sight
they might be depicted as abstract concepts. Evidence coming from several studies shows, instead, that
the issue is more complex. In this work, we will briefly outline the debate and illustrate results from recent
studies on comprehension of concrete, emotional and abstract words in children and adults. We will argue
that emotional words can be accounted for from a grounded perspective and will contend that emotional
words represent a particular set of words that differs from both the concrete and purely abstract ones
Pacifier overuse and conceptual relations of abstract and emotional concepts
This study explores the impact of the extensive use of an oral device since infancy (pacifier) on the acquisition of concrete, abstract, and emotional concepts. While recent evidence showed a negative relation between pacifier use and childrenâs emotional competence (Niedenthal et al., 2012), the possible interaction between use of pacifier and processing of emotional and abstract language has not been investigated. According to recent theories, while all concepts are grounded in sensorimotor experience, abstract concepts activate linguistic and social information more than concrete ones. Specifically, the Words As Social Tools (WAT) proposal predicts that the simulation of their meaning leads to an activation of the mouth (Borghi and Binkofski, 2014; Borghi and Zarcone,
2016). Since the pacifier affects facial mimicry forcing mouth muscles into a static position, we hypothesize its possible interference on acquisition/consolidation of abstract emotional and abstract not-emotional concepts, which aremainly conveyed during social and linguistic interactions, than of concrete concepts. Fifty-nine first grade children, with a history of different frequency of pacifier use, provided oral definitions of the meaning of abstract not-emotional, abstract emotional, and concrete words. Main effect of concept type emerged, with higher accuracy in defining concrete and abstract
emotional concepts with respect to abstract not-emotional concepts, independently from pacifier use. Accuracy in definitions was not influenced by the use of pacifier, butcorrespondence and hierarchical clustering analyses suggest that the use of pacifier differently modulates the conceptual relations elicited by abstract emotional and abstract not-emotional. While the majority of the children produced a similar pattern of conceptual relations, analyses on the few (6) children who overused the pacifier (for more than 3 years) showed that they tend to distinguish less clearly between concrete and abstract
emotional concepts and between concrete and abstract not-emotional concepts than children who did not use it (5) or used it for short (17). As to the conceptual relations they produced, children who overused the pacifier tended to refer less to their experience and to social and emotional situations, usemore exemplifications and functional relations, and less free associations
Is Povidone-iodine Safe and Effective in the Treatment of Children and Adults with Viral Conjunctivitis?
OBJECTIVE: The objective of this selective EBM review is to determine whether or not, âIs povidone-iodine safe and effective in the treatment of children and adults with viral conjunctivitis?â STUDY DESIGN: Review of three English language primary studies, published between 2002 and 2015. DATA SOURCES: Two randomized controlled trials (RCTs) and one non-randomized, prospective, interventional pilot study were found using PubMed and the Cochrane database. OUTCOMES MEASURED: Each study evaluated the efficacy of povidone-iodine for the treatment of viral conjunctivitis measured by days until cured as determined by patient rating of symptom strength and ophthalmological grading of ocular signs. Drug tolerability was defined as the proportion of participants sustaining povidone-iodine application until 7 days or recovery. RESULTS: Tunay, Ozdemir & Petricili (2015) found that a one-time irrigation with povidoneiodine 2.5% and Netilmisin drops resulted in a significant reduction in symptom severity (
Abstract, emotional and concrete concepts and the activation of mouth-hand effectors
According to embodied and grounded theories, concepts are grounded in sensorimotor systems. The majority of evidence supporting these views concerns concepts referring to objects or actions, while evidence on abstract concepts is more scarce. Explaining how abstract concepts such as ââfreedomââ are represented would thus be pivotal for grounded theories. According to some recent proposals, abstract concepts are grounded in both sensorimotor and linguistic experience, thus they activate the mouth motor system more than concrete concepts. Two experiments are reported, aimed at verifying whether abstract, concrete and emotional words activate the mouth and the hand effectors. In both experiments participants performed first a lexical decision, then a recognition task. In Experiment 1 participants responded by pressing a button either with the mouth or with the hand, in Experiment 2 responses were given with the foot, while a button held either in the mouth or in the hand was used to respond to catch-trials. Abstract words were slower to process in both tasks (concreteness effect). Across the tasks and experiments, emotional concepts had instead a fluctuating pattern, different from those of both concrete and abstract concepts, suggesting that they cannot be considered as a subset of abstract concepts. The interaction between type of concept (abstract, concrete and emotional) and effector (mouth, hand) was not significant in the lexical decision task, likely because it emerged only with tasks implying a deeper processing level. It reached significance, instead, in the recognition tasks. In both experiments abstract concepts were facilitated in the mouth condition compared to the hand condition, supporting our main prediction. Emotional concepts instead had a more variable pattern. Overall, our findings indicate that various kinds of concepts differently activate the mouth and hand effectors, but they also suggest that concepts activate effectors in a flexible and task-dependent wa
Star formation in the central regions of galaxies
Massive star formation in the central regions of spiral galaxies plays an
important role in the dynamical and secular evolution of their hosts. Here, we
summarise a number of recent investigations of the star formation history and
the physical conditions of the gas in circumnuclear regions, to illustrate not
only the detailed results one can achieve, but also the potential of using
state-of-the-art spectroscopic and analysis techniques in researching the
central regions of galaxies in general. We review how the star formation
history of nuclear rings confirms that they are long-lived and stable
configurations. Gas flows in from the disk, through the bar, and into the ring,
where successive episodes of massive star formation occur. Analysing the ring
in NGC 7742 in particular, we determine the physical conditions of the line
emitting gas using a combination of ionisation and stellar population
modelling, concluding that the origin of the nuclear ring in this non-barred
galaxy lies in a recent minor merger with a small gas-rich galaxy.Comment: Invited contribution, to appear in "Mapping the Galaxy and other
galaxies", Eds. K. Wada and F. Combes, Springer, in pres
Menâs reactions to gender inequality in the workplace: From relative deprivation on behalf of women to collective action
: Over recent years, the role of men as women's allies in the struggle for gender equality has become increasingly important. Previous research has shown that often men do not fight gender inequalities as they fail to recognize the severity of discrimination against women (e.g., in hiring). In this study (Nâ=â427), we examined whether men who experienced relative deprivation on behalf of women-a form of relative deprivation that stems from the awareness that women hold a less privileged position in society-were more motivated to engage in collective action to support gender equality in the workplace. The findings showed that men's feelings of deprivation on behalf of women were associated with a greater willingness to engage in collective action for gender equality. This relationship was sequentially mediated by two emotional reactions related to deprivation-increased guilt about gender inequalities and decreased fear of a potential backlash-and the moral conviction of acting for gender equality. These results suggest that men's awareness of gender inequality at work is an important antecedent to their acting in solidarity with women and that emotions and moral conviction are two psychological processes that turn cognition into behavior. Action to reduce gender inequalities should make men more sensitive to seeing that they hold a privileged position in society and to recognizing the pervasive and harmful nature of women's deprivation
Discrete Integrable Systems and Random Lax Matrices
We study properties of Hamiltonian integrable systems with random initial data by considering their Lax representation. Specifically, we investigate the spectral behaviour of the corresponding Lax matrices when the number N of degrees of freedom of the system goes to infinity and the initial data is sampled according to a properly chosen Gibbs measure. We give an exact description of the limit density of states for the exponential Toda lattice and the Volterra lattice in terms of the Laguerre and antisymmetric Gaussian beta-ensemble in the high temperature regime. For generalizations of the Volterra lattice to short range interactions, called INB additive and multiplicative lattices, the focusing Ablowitz-Ladik lattice and the focusing Schur flow, we derive numerically the density of states. For all these systems, we obtain explicitly the density of states in the ground states
Theoretical modeling of UV-Vis absorption and emission spectra in liquid state systems including vibrational and conformational effects: the vertical transition approximation
In this paper we describe in detail a general and efficient methodology, based on the perturbed matrix
method and molecular dynamics simulations, to model UV-Vis absorption and emission spectra
including vibrational and conformational effects. The basic approximation used is to consider all the
chromophore atomic coordinates as semiclassical degrees of freedom, hence allowing the calculation
of the complete spectral signal by using the electronic vertical transitions as obtained at each
possible chromophore configuration, thus including the contributions of vibrations and conformational
transitions into the spectrum. As shown for the model system utilized in this paper, solvated
1-phenyl-naphthalene, such an approximation can be rather accurate to reproduce the absorption
and emission spectral line shape and properties when, as it often occurs, the vertical vibronic transition
largely overlaps the other non-negligible vibronic transitions
Nuclear Rings in Galaxies---A Kinematic Perspective
We combine DensePak integral field unit and TAURUS Fabry-Perot observations
of 13 nuclear rings to show an interconnection between the kinematic properties
of the rings and their resonant origin. The nuclear rings have regular and
symmetric kinematics, and lack strong non-circular motions. This symmetry,
coupled with a direct relationship between the position angles and
ellipticities of the rings and those of their host galaxies, indicate the rings
are in the same plane as the disc and are circular. From the rotation curves
derived, we have estimated the compactness (v^2/r) up to the turnover radius,
which is where the nuclear rings reside. We find that there is evidence of a
correlation between compactness and ring width and size. Radially wide rings
are less compact, and thus have lower mass concentration. The compactness
increases as the ring width decreases. We also find that the nuclear ring size
is dependent on the bar strength, with weaker bars allowing rings of any size
to form.Comment: 19 pages, 7 figures, accepted for publication into Ap
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