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The label-feedback hypothesis (Lupyan, 2012) states that language can modulate visual processing. In particular, hearing or reading aloud target names (labels) speeds up performance in visual search tasks by facilitating target detection. The current study conceptually expands previous investigations by comparing the effect of a multimodal label presentation (i.e., an audio+visual, AV, priming label), with that of a multimodal (i.e. noise+visual, NV, label) and two unimodal (i.e. audio, A, label or visual, V, label) control conditions in a visual search task. Furthermore, the name of a category (i.e. a label at the superordinate level) was used as a cue, instead of the more commonly used target name (a basic level label), with targets belonging to one of three categories: proper weapons, improper weapons, garments. According to legislation, objects are typically classified as weapons if they are offensive per se (referred to here as proper) and if they are adapted for use as weapons or carried with the intent of causing injury (referred to here as improper), with specific regulations on their usage and possession in public spaces. However, little evidence exists on the validity of this distinction in psychology, despite a widespread recognition of the importance of psychological states and perceptions in risk assessment. These categories were found to vary for their structure, improper weapons being an ad hoc category unlike proper weapons and garments, and for the perceived dangerousness and familiarity of their exemplars, which increase from garments to proper weapons. Results of the two experiments on the label-feedback effect show an overall transient facilitation of visual search performance in the AV condition compared to control conditions. However, for improper weapons, no significant difference was found between the AV and the NV label condition, suggesting that the specificity of the superordinate label effect can be modulated by the structural properties of a category. The findings are consistent with the idea that the AV condition prompted an "up regulation" of the label, a requirement for enhancing the label’s beneficial effects, with the exception of improper weapons. They also highlight the status of the category of improper weapons and offer additional proof that sets it apart from proper weapons.

<p>In this paper it is considered the Sircar-Papanicolaou model wich takesinto account a feedback effect of dynamic hedging strategies of pro-gramme traders. Using the Lie group analysis we describe the symmetrygroup of the main equation of the concerned model. We reduce this par-tial differential equation to the ordinary differential equations by usingcorresponding invariants of the subgroups of the main symmetry group.</p>

In this paper it is considered the Sircar-Papanicolaou model wich takesinto account a feedback effect of dynamic hedging strategies of pro-gramme traders. Using the Lie group analysis we describe the symmetrygroup of the main equation of the concerned model. We reduce this par-tial differential equation to the ordinary differential equations by usingcorresponding invariants of the subgroups of the main symmetry group.

Darbo objektas: Geriatrinių pacientų pusiausvyros gerinimas. Tyrimo problema: Pagyvenusiai ir senyvo amžiaus žmonių populiacijai sparčiai didėjant, labai svarbu yra išlaikyti fizinį aktyvumą, savarankiškumą, apsitarnavimą kasdieninėje veikloje bei sumažinti nelaimingų atsitikimų riziką. Pagrindinis veiksnys įtakojantis pagyvenusio amžiaus žmonių nelaimingus atsitikimus ir mirštamumą yra griuvimai. Todėl tampa labai svarbu iš anksto jiems užkirsti kelią ir taip gerinti pagyvenusio amžiaus žmonių gyvenimo kokybę. Tyrimo tikslas: nustatyti pratimų su grįžtamuoju ryšiu poveikį geriatrinių pacientų pusiausvyros lavinimui ir griuvimų prevencijai. Tyrimo uždaviniai: 1. Nustatyti tiriamųjų riziką nugriūti prieš ir po kineziterapijos programos 2. Nustatyti statinę ir dinaminę pusiausvyrą prieš ir po kineziterapijos programos Tyrimo metodika: tyrimas buvo atliktas Belgijoje, Gento mieste, Universitair Ziekenhuis Gent, Geriatrijos skyriuje 2012 – 2013 metais. Tyrime dalyvavo 5 pacientai atitikę šiuos kriterijus: • Amžius nuo 70-89 metų; • Griuvę per paskutinius metus bent vieną kartą ir patyrę kaulų lūžių ar kitų sužeidimų; • Nepatyrę galvos smegenų insulto; • Surinkę ne mažiau 25 balus pagal Berg pusiausvyros vertinimo skalę; Tyrimas buvo vykdomas keturias savaites. Kineziterapijos užsiėmimai buvo atliekami 5 kartus per savaitę, 40 min. – 1 val. per dieną. Tiriamieji buvo testuojami tris kartus, prieš pradedant tyrimą, praėjus dviems savaitėms ir paskutinę tyrimo dieną. Pusiausvyros... [toliau žr. visą tekstą] / Object of study: balance improvement in geriatric patients Problem of study: while the elderly populations keep on growing it is so important to sustain physical activity and independence in daily activities amongst them, while preventing the risk of fall. The main reason that impacts elderly people’s accidents is fall. That is why it is essential to prevent fall and it that way improve the quality of life Aim of study: to define the effect of balance exercises with feedback on falls prevention for geriatric patients Goals of study: 1. To identify factors that influence geriatric patients risk of falls. 2. To estimate effect of special balance and exercises with feedback for static and dynamic balance for geriatric patients Methods and organization of study: the research took place in Belgium, the city of Gent, Universitair Ziekenhuis Gent, in Geriatrics department in the year 2012 – 2013. Five patients participated in the research who: • Was aged between 70-89 years; • Had fallen down in the last year and suffered from the bone fractures or other injuries; • Haven’t suffered from stroke; • Reached not less than 25 points in Berg balance test; The study took place weeks. Physiotherapy exercises took place every day 5 times per week, 40 minutes till 1 hour. The participants were examined 3 times during the study Conclusions: 1. After performing special balance exercises with feedback there was detected statistically significant improvement of static and dynamic balance in... [to full text]

abstract: The label-feedback hypothesis (Lupyan, 2007, 2012) proposes that language modulates low- and high-level visual processing, such as priming visual object perception. Lupyan and Swingley (2012) found that repeating target names facilitates visual search, reducing response times and increasing accuracy. Hebert, Goldinger, and Walenchok (under review) used a modified design to replicate and extend this finding, and concluded that speaking modulates visual search via template integrity. The current series of experiments 1) replicated the work of Hebert et al. with audio stimuli played through headphones instead of self-directed speech, 2) examined the label feedback effect under conditions of varying object clarity, and 3) explored whether the relative prevalence of a target’s audio label might modulate the label feedback effect (as in the low prevalence effect; Wolfe, Horowitz, & Kenner, 2005). Paradigms utilized both traditional spatial visual search and repeated serial visual presentation (RSVP). Results substantiated those found in previous studies—hearing target names improved performance, even (and sometimes especially) when conditions were difficult or noisy, and the relative prevalence of a target’s audio label strongly impacted its perception. The mechanisms of the label feedback effect––namely, priming and target template integrity––are explored. / Dissertation/Thesis / Doctoral Dissertation Psychology 2019

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Le transfert interorganisationnel de connaissances a un intérêt central à la fois comme sujet académique et dans la pratique des affaires. Cependant, les conséquences du transfert interorganisationnel sur la firme émettrice restent méconnues. Notre recherche tente de combler cette lacune et vise deux objectifs complémentaires. En premier lieu, elle vise une meilleure compréhension des effets du transfert interorganisationnel de connaissances et de leur utilité pour la firme émettrice, et en second lieu, elle cherche à identifier les facteurs qui facilitent ou entravent ces effets.Nous avons adopté une démarche scientifique exploratoire structurée en deux parties. La première partie est classiquement consacrée à une revue de littérature visant à la construction d’un modèle théorique de recherche, et la deuxième permet de confronter le modèle théorique à la réalité empirique.Les données recueillies auprès de 126 relations client-fournisseur dans l'industrie française ont fait l’objet d’analyses statistiques quantitatives. A partir de ces éléments, l’étude fournit une vérification empirique de l'importance du transfert interorganisationnel de connaissances. Elle identifie notamment la distance cognitive entre les partenaires, la qualité de la relation, la capacité de l’émetteur, la portée du transfert de connaissances et la mise en adéquation des connaissances transférées comme des facteurs essentiels au succès du transfert. En outre, notre recherche apporte une valeur prescriptive pour les praticiens qui cherchent à développer un transfert de connaissances efficace et efficient dans le cadre de la relation client-fournisseur. / The interorganizational knowledge transfer is central for both scholars and practitioners. However, despite the attention given to the importance of this subject from different viewpoints and in different contexts, the effects of interorganizational transfer on the source firm (the sender) remain unclear. Our research attempts to fill this gap and has two complementary objectives: understanding the effects of interorganizational knowledge transfer and their usefulness for the source firm, and identifying factors that facilitate or inhibit these effects.To achieve these goals, we adopted an exploratory approach structured in two parts. The first part is dedicated to a literature review to construct a theoretical model of research, and the second allows us to compare the theoretical model to empirical reality.The study is a part of the interpretive paradigm. Data collected from 126 customer-supplier relationships in the French industry were analyzed through various statistical techniques.The study provides empirical verification of the importance of inter-organizational knowledge transfer. It also identifies the cognitive distance between partners, the quality of the relationship, the sender capability, the scope of knowledge transfer and the alignment of knowledge transfer as key factors in the success of the transfer. Finally, our research provides prescriptive tools for experts who aim to develop an effective and efficient knowledge transfer in the context of customer-supplier relationship.

本研究旨在探討金融危機期間，美國與歐洲金融市場之日內報酬率、實質波動度、連續波動度與跳躍風險行為之日內因果關係，並採用美國三大指數期貨(S&P 500, Dow Jones, Nasdaq)及歐洲期數期貨(FTSE, DAX, CAC)之高頻資料，檢定是否具有顯著槓桿效果(Leverage Effect)與波動度回饋效果(Volatility Effect)、在報酬率與跳躍風險之間具有相互影響效果。探討在金融危機發生前、後期間其日內報酬率、實質波動度、連續波動度與跳躍項間在1分鐘、5分鐘及60分鐘之抽樣頻率下之日內行為。因此，實證研究包含金融市場之上升及下降趨勢，顯示在金融危機發生後，日內波動度與跳躍項之槓桿效果(Leverage Effect)與波動度回饋效果(Volatility Effect)受到叢聚(Clustering)現象影響且顯著增加。不同抽樣頻率下之因果關係效果在金融危機發生前、中、後期間，特別在5分鐘及60分鐘之抽樣頻率方式，跳躍風險受到波動度回饋效果影響呈顯著增加，此實證結果對政策制定者及投資人具有重要之意涵。 / This study examines the intraday causality between returns, volatility and jumps in the U.S. and European markets during the financial crisis. examine whether during the financial crisis, the S&P 500, Dow Jones, Nasdaq, FTSE, DAX and CAC index futures markets have a significant impact on the leverage and volatility feedback effects, as well as whether these interactions also occur between returns and jumps. The intraday behavior of 1-min, 5-min and 60-min sampling of returns, volatility and jumps is examined by employing data from the period between financial crisis. The study covers the major upward and downward trends in the market. Our empirical data indicate the main leverage and volatility feedback effects caused by intraday volatility and jump clustering significantly increased after the financial crisis. The causality effects with different sampling frequencies before, during and after the financial crisis show that jumps have increased the volatility feedback effect, especially when in a 5-min and 60-min sampling frequency is used. These findings have important implications for both policymakers and investors.

本研究顯著地發展時間轉換Lévy過程在最適投資組合的運用性。在連續Lévy過程模型設定下，槓桿效果直接地產生跨期波動度不對稱避險需求，而波動度回饋效果則透過槓桿效果間接地發生影響。另外，關於無窮跳躍Lévy過程模型設定部分，槓桿效果仍扮演重要的影響角色，而波動度回饋效果僅在短期投資決策中發生作用。最後，在本研究所提出之一般化隨機波動度不對稱資產報酬動態模型下，得出在無窮跳躍的資產動態模型設定下，擴散項仍為重要的決定項。 / This study significantly extends the applicability of time-changed Lévy processes to the portfolio optimization. The leverage effect directly induces the intertemporal asymmetric volatility hedging demand, while the volatility feedback effect exerts a minor influence via the leverage effect under the pure-continuous time-changed Lévy process. Furthermore, the leverage effect still plays a major role while the volatility feedback effect just works over the short-term investment horizon under the infinite-jump Lévy process. Based on the proposed general stochastic asymmetric volatility asset return model, we conclude that the diffusion term is an essential determinant of financial modeling for index dynamics given infinite-activity jump structure.