Now showing items 1-20 of 78

    • A lesion model of envy and "Schadenfreude" : legal, deservingness and moral dimensions as revealed by neurodegeneration 

      Santamaría-García, Hernando; Baez, Sandra; Reyes, Pablo; Santamaría-García, José A.; Santacruz-Escudero, José M.; Matallana, Diana; Arévalo, Analía; Sigman, Mariano; García, Adolfo M.; Ibáñez, Agustín (2017-08-21)
      The study of moral emotions (i.e. Schadenfreude and envy) is critical to understand the ecological complexity of everyday interactions between cognitive, affective, and social cognition processes. Most previous studies in ...
    • A massive experiment on choice blindness in political decisions : confidence, confabulation, and unconscious detection of self-deception 

      Rieznik, Andrés; Moscovich, Lorena; Frieiro, Alan; Figini, Julieta; Catalano, Rodrigo; Garrido, Juan Manuel; Álvarez Heduan, Facundo; Sigman, Mariano; González, Pablo A. (207-02-14)
      We implemented a Choice Blindness Paradigm containing political statements in Argentina to reveal the existence of categorical ranges of introspective reports, identified by confidence and agreement levels, separating ...
    • A new test for the success of inflation targeting 

      Powell, Andrew; Cohen Sabbán, Verónica; González-Rozada, Martín (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2003)
      We propose a new test, derived from a set of variance decompositions of a structural VAR, for the success of inflation targeting. In contrast to standard sacrifice ratios this test considers changes in the structure of ...
    • Aftermaths of current account crisis: export growth or import contraction? 

      Sturzenegger, Federico; Guidotti, Pablo; Villar, Agustín (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2003)
      This paper defines current account crises as current account adjustments that occur in the aftermath of a sizable reduction in capital flows. We study the characteristics of such current account adjustments, particularly ...
    • An entropic barriers diffusion theory of decision-making in multiple alternative tasks 

      Fernandez Slezak, Diego; Sigman, Mariano; Cecchi, Guillermo A. (2018-03-02)
      We present a theory of decision-making in the presence of multiple choices that departs from traditional approaches by explicitly incorporating entropic barriers in a stochastic search process. We analyze response time ...
    • Arithmetic on your phone : a large scale investigation of simple additions and multiplications 

      Zimmerman, Federico; Shalom, Diego; González, Pablo A.; Garrido, Juan Manuel; Álvarez Heduan, Facundo; Dehaene, Stanislas; Sigman, Mariano; Rieznik, Andrés (2016-12-29)
      We present the results of a gamified mobile device arithmetic application which allowed us to collect vast amount of data in simple arithmetic operations. Our results confirm and replicate, on a large sample, six of the ...
    • Attachment patterns trigger differential neural signature of emotional processing in adolescents 

      Escobar, María Josefina; Rivera-Rei, Álvaro; Decety, Jean; Huepe, David; Cardona, Juan Felipe; Canales-Johnson, Andrés; Sigman, Mariano; Helgiu, Elena; Mikulan, Ezequiel P.; Baez, Sandra; Manes, Facundo; Lopez, Vladimir; Ibañez, Agustín (2013-08-05)
      Background: Research suggests that individuals with different attachment patterns process social information differently, especially in terms of facial emotion recognition. However, few studies have explored social ...
    • Attention, in and out : scalp-level and Intracranial EEG correlates of interoception and exteroception 

      García-Cordero, Indira; Esteves, Sol; Mikulan, Ezequiel P.; Hesse, Eugenia; Baglivo, Fabricio H.; Silva, Walter; García, María del Carmen; Vaucheret, Esteban; Ciraolo, Carlos; García, Hernando S.; Adolfi, Federico; Pietto, Marcos; Herrera, Eduar; Legaz, Agustina; Manes, Facundo; García, Adolfo M.; Sigman, Mariano; Bekinschtein, Tristan A.; Ibáñez, Agustín; Sedeño, Lucas (2017-07-19)
      Interoception, the monitoring of visceral signals, is often presumed to engage attentional mechanisms specifically devoted to inner bodily sensing. In fact, most standardized interoceptive tasks require directing attention ...
    • Automated analysis of free speech predicts psychosis onset in high-risk youths 

      Bedi, Gillinder; Carrillo, Facundo; Cecchi, Guillermo A.; Fernández Slezak, Diego; Sigman, Mariano; Mota, Natália B.; Ribeiro, Sidarta; Javitt, Daniel C.; Copelli, Mauro; Corcoran, Cheryl M. (2015-08-26)
      BACKGROUND/OBJECTIVES: Psychiatry lacks the objective clinical tests routinely used in other specializations. Novel computerized methods to characterize complex behaviors such as speech could be used to identify and predict ...
    • Banking on foreigners: the behaviour of International Bank Lending to Latin America, 1985-2000 

      Powell, Andrew; Martínez Peria, María Soledad; Vladkova, Ivanna (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2002)
      Rising international bank financing to developing countries has motivated a debate on the behavior of these claims. We analyze claims from seven home (lender) countries on ten host (borrower) countries in Latin America. ...
    • Bayesian validation of grammar productions for the language of thought 

      Romano, Sergio; Salles, Alejo; Amalric, Marie; Deahene, Stanislas; Sigman, Mariano; Figueira, Santiago (2018-07-10)
      Probabilistic proposals of Language of Thoughts (LoTs) can explain learning across differ- ent domains as statistical inference over a compositionally structured hypothesis space. While frameworks may differ on how a LoT ...
    • Bimbo Bakery case story 

      Universidad Torcuato Di Tella. Escuela de Negocios. Espacio de Negocios Inclusivos (ENI) (Universidad Torcuato Di Tella. Escuela de Negocios. Espacio de Negocios Inclusivos (ENI), 2011)
      Breve historia de la empresa Bimbo.
    • Bridging psychology and mathematics : can the brain understand the brain? 

      Sigman, Mariano (2004-09-14)
      We are told scientists are divided into experimentalists and theoreticians. The dialectic description of the dynamics of science, with one tribe gathering data and collecting evidence and another tribe providing form to ...
    • Business cycle and macroeconomic policy coordination in MERCOSUR 

      González-Rozada, Martín; Fanelli, José (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2003)
      The paper analyzes cyclical comovements in the Mercosur area differentiating idiosyncratic from common shocks. In the Mercosur (or any region for that matter) shocks can be country-specific, affecting only one country or ...
    • Capital inflows and capital outflows: measurement, determinants, consequences 

      Powell, Andrew; Mohapatra, Sanket; Ratha, Dilip (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2002)
      This paper develops new estimates of capital outflows and is the first, to our knowledge, to analyze the determinants, consequences and inter-relationship between inflows and outflows. Given the dynamics and individual ...
    • Choosing in freedom or forced to choose? Introspective blindness to psychological forcing in stage-magic 

      Shalom, Diego E.; Serro, Maximiliano G. de Sousa; Giaconia, Maximiliano; Martínez, Luis M.; Rieznik, Andrés; Sigman, Mariano (2013-03-13)
      We investigated an individual ability to identify whether choices were made freely or forced by external parameters. We capitalized on magical setups where the notion of psychological forcing constitutes a well trodden ...
    • Classifying exchange rate regimes: deeds vs. words 

      Levy Yeyati, Eduardo; Sturzenegger, Federico (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2002)
      Most of the empirical literature on exchange rate regimes uses the IMF de jure classification based on the regime announced by the governments, despite the recognized inconsistencies between reported and actual policies ...
    • Collective behavior in the spatial spreading of obesity 

      Gallos, Lazaros K.; Barttfeld, Pablo; Havlin, Shlomo; Sigman, Mariano; Makse, Hernán A. (2012-06-12)
      Obesity prevalence is increasing in many countries at alarming levels. A difficulty in the conception of policies to reverse these trends is the identification of the drivers behind the obesity epidemics. Here, we implement ...
    • Concentration and foreign penetration in Latin American banking sectors: impact on competition and risk 

      Levy Yeyati, Eduardo (Universidad Torcuato Di Tella. Escuela de Negocios. Centro de Investigaciones en Finanzas (CIF), 2003)
      In recent years, Latin American banking sectors have experienced an accelerated process of concentration and foreign penetration that has prompted diverse views regarding its implications for the competitive behavior of ...
    • Confidence through consensus : a neural mechanism for uncertainty monitoring 

      Paz, Luciano; Insabato, Andrea; Zylberberg, Ariel; Deco, Gustavo; Sigman, Mariano (2016-02-24)
      Models that integrate sensory evidence to a threshold can explain task accuracy, response times and confidence, yet it is still unclear how confidence is encoded in the brain. Classic models assume that confidence is ...