On the influence of thought on language: a naturalistic framework for the pantomimic origins of human communication

This paper focuses on the idea that pantomime is a privileged lens for investigating the origin of language in a naturalistic framework. Two reasons support this claim. The first one concerns the motivated and iconic character of pantomime compared to the arbitrary and abstract features of linguistic signs emphasized by the conventionalist thesis. The second reason is that a pantomimic account of language origin paves the way for a rethinking of the traditional hypothesis on the relationship between thought and language. Specifically, it leads to a revision of the thesis of the unidirectional influence of language on thought in favor of a bidirectional influence. Indeed, looking at the relationship between thought and language in its nascent stage means investigating the role of thought in shaping language rather than the role of language in shaping thought. A bidirectional perspective of this type hinges on the twofold idea that thought has primarily a narrative foundation and that pantomime represents an ideal expressive means for bootstrapping the evolutionary foundations of language origins in a naturalistic framework

Shark Declines in the Mediterranean Sea

Summarizes a study of population and biomass trends of large sharks in the Mediterranean, and highlights the risk of some species becoming extinct as a result of unintended capture in fishing gear, targeted shark fishing, and human population pressure

Long-Term Change in a Meso-Predator Community in Response to Prolonged and Heterogeneous Human Impact

Sharks and rays' abundance can decline considerably with fishing. Community changes, however, are more complex because of species interactions, and variable vulnerability and exposure to fishing. We evaluated long-term changes in the elasmobranch community of the Adriatic Sea, a heavily exploited Mediterranean basin where top-predators have been strongly depleted historically, and fishing developed unevenly between the western and eastern side. Combining and standardizing catch data from five trawl surveys from 1948 -- 2005, we estimated abundance trends and explained community changes using life histories, fish-market and effort data, and historical information. We identified a highly depleted elasmobranch community. Since 1948, catch rates have declined by .94% and 11 species ceased to be detected. The exploitation history and spatial gradients in fishing pressure explained most patterns in abundance and diversity, including the absence of strong compensatory increases. Ecological corridors and large-scale protected areas emerged as potential management options for elasmobranch conservation

Rate of complications due to neuromuscular scoliosis spine surgery in a 30-years consecutive series

PURPOSE: The aim of this study was to evaluate the rate of intraoperative and postoperative complications in a large series of patients affected by neuromuscular scoliosis. METHODS: It was a monocentric retrospective study. In this study have been considered complications those events that significantly affected the course of treatment, such as getting the hospital stay longer, or requiring a subsequent surgical procedure, or corrupting the final result of the treatment. RESULTS: Of the 358 patients affected by neuromuscular scoliosis treated from January 1985 to December 2010, 185 that met the inclusion criteria were included in the study. There were recorded 66 complications in 55/185 patients. Of that 66 complications, 54 complications occurred in 46/120 patients with Luque's instrumentation, while only 12 complications occurred in 9/65 patients with hybrid instrumentation and this difference was statistically significant (p 0.05). CONCLUSIONS: The surgical treatment in neuromuscular scoliosis is burdened by a large number of complications. An accurate knowledge of possible complications is mandatory to prepare strategies due to prevent adverse events. A difference in definitions could completely change results in good or bad as well as in our same series the adverse events amounted at almost 30% of cases, but complications that due to complete failure would amount at 9.19% of patients. KEYWORDS: Complications; Neuromuscular scoliosis; Scoliosis; Scoliosis surgery PMID: 28314995 DOI: 10.1007/s00586-017-5034-6 Share on FacebookShare on TwitterShare on Google

Processing Narrative Coherence: Towards a top-down model of discourse.

Models of discourse and narration elaborated within the classical compositional framework have been characterized as bottom-up models, according to which discourse analysis proceeds incrementally, from phrase and sentence local meaning to discourse global meaning. In this paper we will argue against these models. Assuming as a case study the issue of discourse coherence, we suggest that the assessment of coherence is a top-down process, in which the construction of a situational interpretation at the global meaning level guides local meaning analysis. In support of our hypothesis, we explore the role of executive functions (brain functions involved in planning and organization of goal-oriented behaviors) in coherence’s establishment, discussing the results of several studies on narrative abilities of patients with brain injuries. We suggest that, compared to other models of discourse processing focused on comprehension, our model is a viable candidate for an integrated account of discourse comprehension and production

A Forecasting Model for Stock Market Diversity

We apply the recently introduced generalized tree-structured (GTS) model to the analysis and forecast of stock market diversity. Diversity is a measure of capital concentration across a market that plays a central role in the search for arbitrage. The GTS model allows for different conditional mean and volatility regimes that are directly related to the behavior of macroeconomic fundamentals through a binary threshold construction. Testing on US market data, we collect empirical evidence of the model's strong potential in estimating and forecasting diversity accurately in comparison with other standard approaches. In addition, the GTS model allows for the construction of very simple portfolio strategies that systematically beat the standard cap-weighted S&P500 inde

Flexural-Torsional Flutter and Buckling of Braced Foil Beams under a Follower Force

The flutter and buckling behavior of a cantilever foil beam, loaded at the tip by a follower force, are addressed in this paper. The beam is internally and externally damped and braced at the tip by a linear spring-damper device, which is located in an eccentric position with respect to beam axis, thus coupling the flexural and torsional behaviors. An exact linear stability analysis is carried out, and the linear stability diagram of the trivial rectilinear configuration is built up in the space of the follower load and spring’s stiffness parameters. The effects of the flexural-torsional coupling, as well as of the damping, on the flutter and buckling critical loads are discussed

Il ruolo della costruzione di scenari nella spiegazione dei disturbi macrolinguistici della schizofrenia

Riassunto: Al centro di questo articolo è l’analisi dei fondamenti neurocognitivi dei deficit macrolinguistici, discorsivo-narrativi nello specifico, osservabili nei pazienti affetti da schizofrenia. Tale analisi è condotta in riferimento alle ricerche svolte negli ultimi decenni nell’ambito della psicolinguistica e delle neuroscienze. I risultati di queste ricerche hanno mostrato che alcuni aspetti dei disturbi macroelaborativi che caratterizzano il profilo linguistico dei pazienti schizofrenici possono essere spiegati chiamando in causa i deficit di tre sistemi cognitivi: teoria della mente, funzioni esecutive, memoria semantica. In questo articolo si sostiene che un tale quadro esplicativo vada integrato attraverso il riferimento a un ulteriore processo cognitivo cruciale per l’elaborazione macrolinguistica: la costruzione di scenari. Tale processo è fondamentale per la comprensione e produzione discorsiva in quanto responsabile della costruzione della rappresentazione globale degli eventi del discorso narrativo. Alla luce di queste considerazioni, in questo lavoro si propone che un ruolo cruciale nella spiegazione di alcuni aspetti dei disturbi macrolinguistici nella schizofrenia sia svolto da una compromissione nel processo di costruzione di scenari mentali e si avanza l’ipotesi che tale compromissione sia determinata, a sua volta, da problematiche che agiscono sul piano del funzionamento delle aree cerebrali preposte alla percezione e all’assemblaggio multimodale delle rappresentazioni sensomotorie.Parole chiave: Abilità macrolinguistiche; Costruzione di scenari; Elaborazione discorsiva: Embodied Cognition; Narrazione; Schizofrenia; Percezione; Modelli mentaliThe role scenario building in the explanation of macrolinguistic disorders in schizophreniaAbstract: This article analyzes the neurocognitive foundations of macrolinguistic deficits, specifically narrative, observable in patients with schizophrenia. This analysis is conducted with reference to the investigations carried out in recent decades in the field of psycholinguistics and neuroscience. The results of these investigations showed that some aspects of macrolinguistic deficits of schizophrenics can be explained in terms of impairments of three cognitive systems: theory of mind, executive functions, and semantic memory. In this article, it is suggested that this explanatory framework has to be integrated with the reference to a further cognitive process: scenarios construction. Such process turns out to be critical for discourse comprehension and production as it is responsible for the building of the global representation of events of a narrative. In the light of these considerations, it is claimed that a crucial role in the explanation of some aspects of macrolinguistic disorders in schizophrenia is played by an impairment in the process of constructing mental scenarios. The hypothesis is that this impairment is, in turn, determined by problems affecting the brain areas responsible for the perception and multimodal assembly of sensorimotor representations.Keywords: Discourse Processing; Embodied Cognition; Macrolinguistic Skills; Scenario Building; Narrative; Schizophrenia; Perception; Mental Model

Spatio-temporal patterns of the European wildcat in a Mediterranean coastal area

Like most small felids, the European wildcat Felis silvestris is a rather elusive species, poorly detectable in the wild, due to several aspects of its biology. Camera trapping can represent a suitable tool to understand temporal activity patterns and habitat preferences of such elusive species. We used intensive camera trapping over two full years to investigate spatio-temporal patterns of the wildcat in a Mediterranean coastal protected area (Maremma Regional Park, central Italy). At the seasonal scale, the wildcat showed a marked twilight activity in summer and winter (mating period), and nocturnal activity in autumn. Conversely, a peak of activity during the day, i.e., in broad daylight, was reported in spring. Reproductive females may limit their nocturnal movements in spring to increase protection from predators to their kittens at the den, although further data are required to support this conclusion. At seasonal, semestral, and yearly temporal scales, the frequency of wildcat detections increased along with availability of shrubwood. These results emphasise the importance for this small felid of areas with dense vegetation cover (Mediterranean maquis and shrubwood, in our study area). Areas densely covered with shrubby vegetation are expected to provide benefits to this elusive small cat in terms of reduced human disturbance (included tourists), availability of prey (e.g., small mammals), as well as shelter, essential to ensure protection towards potential larger predators