• Dazzled by the mystery of mentalism : the cognitive neuroscience of mental athletes 

      Rieznik, Andrés; Lebedev, Mikhail; Sigman, Mariano (2017-05-31)
      Neural processing bymental athletes (MAs) has received attention fromNeuroscience community, with several publications examining superior memorizers (Maguire et al., 2003; Bor et al., 2008), lighting calculators (Pesenti ...
    • Delays without mistakes : response time and error distributions in dual-task 

      Kamienkowski, Juan Esteban; Sigman, Mariano (2008-09-12)
      Background: When two tasks are presented within a short interval, a delay in the execution of the second task has been systematically observed. Psychological theorizing has argued that while sensory and motor operations ...
    • Disentangling interoception : insights from focal strokes affecting the perception of external and internal milieus 

      Couto, Blas (2015-05-01)
      Interoception is the moment-to-moment sensing of the physiological condition of the body. The multimodal sources of interoception can be classified into two different streams of afferents: an internal pathway of signals ...
    • Diversity of opinions promotes herding in uncertain crowds 

      Navajas, Joaquin; Armand, Oriane; Moran, Rani; Bahrami, Bahador; Deroy, Ophelia (Royal Society Open Science, 2022)
      Classic and recent studies demonstrate how we fall for the ‘tyranny of the majority' and conform to the dominant trend when uncertain. However, in many social interactions outside of the laboratory, there is rarely a clearly ...
    • DUDF: Differentiable Unsigned Distance Fields with Hyperbolic Scaling 

      Fainstein, Miguel; Siless, Viviana; Iarussi, Emmanuel (Universidad Torcuato Di Tella, 2024)
      In recent years, there has been a growing interest in training Neural Networks to approximate Unsigned Distance Fields (UDFs) for representing open surfaces in the context of 3D reconstruction. However, UDFs are ...
    • Dynamics of the central bottleneck : dual-task and task uncertainty 

      Sigman, Mariano; Dehaene, Stanislas (2006-06-27)
      Why is the human brain fundamentally limited when attempting to execute two tasks at the same time or in close succession? Two classical paradigms, psychological refractory period (PRP) and task switching, have independently ...
    • Empathy for others’ suffering and its mediators in mental health professionals 

      Santamaría-García, Hernando; Baez, Sandra; García, Adolfo M.; Flichtentrei, Daniel; Prats, María; Mastandueno, Ricardo; Sigman, Mariano; Matallana, Diana; Cetkovich, Marcelo; Ibáñez, Agustín (2017-07-25)
      Empathy is a complex cognitive and affective process that allows humans to experience concern for others, comprehend their emotions, and eventually help them. In addition to studies with healthy subjects and various ...
    • How do you feel when you can’t feel your body? Interoception, functional connectivity and emotional processing in depersonalization-derealization disorder 

      Sedeño, Lucas; Couto, Blas; Melloni, Margherita; Canales-Johnson, Andrés; Yoris, Adrian; Baez, Sandra; Esteves, Sol; Velasquez, Marcela; Barttfeld, Pablo; Sigman, Mariano; Kichic, Rafael; Chialvo, Dante; Manes, Facundo; Bekinschtein, Tristan A.; Ibáñez, Agustín (2014-06-26)
      Depersonalization-Derealization Disorder (DD) typically manifests as a disruption of body self-awareness. Interoception 2 defined as the cognitive processing of body signals2 has been extensively considered as a key ...
    • Imagetic and affective measures of memory reverberation diverge at sleep onset in association with theta rhythm 

      Sigman, Mariano; Bezerra Mota, Natália; Soares, Ernesto; Altszyler, Edgar; Sánchez-Gendriz, Ignacio; Muto, Vincenzo; Heib, Dominik; Slezak, Diego F.; Copelli, Mauro; Schabus, Manuel; Ribeiro, Sidarta (Elsevier Inc, 2022)
      The ‘day residue’ - the presence of waking memories into dreams - is a century-old concept that remains controver- sial in neuroscience. Even at the psychological level, it remains unclear how waking imagery cedes into ...
    • Interactive Crowdsourcing to Fact-check Politicians 

      Espina Mairal, Santos; Bustos, Florencia; Solovey, Guillermo; Navajas, Joaquin (Journal of Experimental Psychology: Applied, 2023)
      The discourse of political leaders often contains false information that can misguide the public. Fact-checking agencies around the world try to reduce the negative influence of politicians by verifying their words. However, ...
    • Learning normal asymmetry representations for homologous brain structures 

      Bendersky, Mariana; Iarussi, Emmanuel; Deangeli, Duilio; Princich, Juan Pablo; Larrabide, Ignacio; Orlando, José Ignacio (Universidad Torcuato Di Tella, 2023)
      Although normal homologous brain structures are approximately symmetrical by definition, they also have shape differences due to e.g. natural ageing. On the other hand, neurodegenerative conditions induce their own changes ...
    • Neglect in human communication : quantifying the cost of cell-phone interruptions in face to face dialogs 

      López-Rosenfeld, Matías; Calero, Cecilia I.; Fernandez Slezak, Diego; Garbulsky, Gerry; Bergman, Mariano; Trevisan, Marcos; Sigman, Mariano (2015-06-03)
      There is a prevailing belief that interruptions using cellular phones during face to face inter- actions may affect severely how people relate and perceive each other. We set out to deter- mine this cost quantitatively ...
    • Neural markers of social and monetary rewards in children with attention-deficit/hyperactivity disorder and autism spectrum disorder 

      González-Gadea, María Luz; Sigman, Mariano; Ratazzi, Alexia; Lavin, Claudio; Rivera Rei, Álvaro; Marino, Julián; Manes, Facundo; Ibáñez, Agustín (2016-07-28)
      Recent theories of decision making propose a shared value-related brain mechanism for encoding monetary and social rewards. We tested this model in children with Attention-Deficit/Hyperactivity Disorder (ADHD), children ...
    • Neural processing of emotional facial and semantic xxpressions in euthymic bipolar disorder (BD) and its association with theory of mind (ToM) 

      Ibañez, Agustín; Urquina, Diego; Petroni, Agustín; Baez, Sandra; Lopez, Vladimir; Nascimento, Micaela do; Herrera, Eduar; Guex, Raphael; Hurtado, Esteban; Blenkmann, Esteban; Beltrachini, Leandro; Gelormini, Carlos; Sigman, Mariano; Lischinsky, Alicia; Torralva, Teresa; Torrente, Fernando; Cetkovich, Marcelo; Manes, Facundo (2012-10-08)
      Background: Adults with bipolar disorder (BD) have cognitive impairments that affect face processing and social cognition. However, it remains unknown whether these deficits in euthymic BD have impaired brain markers of ...
    • NORHA: A NORmal Hippocampal Asymmetry Deviation Index Based on One-Class Novelty Detection and 3D Shape Features 

      Iarussi, Emmanuel; Deangeli, Duilio; Külsgaard, Hernán; Iarussi, Francisco; Braggio, Delfina; Princich, Juan Pablo; Bendersky, Mariana; Larrabide, Ignacio; Orlando, José Ignacio (Brain TopographySpringer, 2023)
      Radiologists routinely analyze hippocampal asymmetries in magnetic resonance (MR) images as a biomarker for neurodegenerative conditions like epilepsy and Alzheimer’s Disease. However, current clinical tools rely on either ...
    • Nudging cooperation in a crowd experiment 

      Niella, Tamara; Stier-Moses, Nicolás; Sigman, Mariano (2016-01-21)
      We examine the hypothesis that driven by a competition heuristic, people don't even reflect or consider whether a cooperation strategy may be better. As a paradigmatic example of this behavior we propose the zero-sum ...
    • Organization of brain networks governed by long-range connections index autistic traits in the general population 

      Barttfeld, Pablo; Amoruso, Lucía; Ais, Joaquín; Cukier, Sebastián; Bavassi, Luz; Tomio, Ailin; Manes, Facundo; Ibañez, Agustín; Sigman, Mariano (2013-06-27)
      Background: The dimensional approach to autism spectrum disorder (ASD) considers ASD as the extreme of a dimension traversing through the entire population. We explored the potential utility of electroencephalography (EEG) ...
    • Parsing a cognitive task : a characterization of the mind’s bottleneck 

      Sigman, Mariano; Dehaene, Stanislas (2005-02-08)
      Parsing a mental operation into components, characterizing the parallel or serial nature of this flow, and understanding what each process ultimately contributes to response time are fundamental questions in cognitive ...
    • Partisanship predicts COVID-19 vaccine brand preference: the case of Argentina 

      Fumagalli, Elena; Krick, Candelaria Belén; Dolmatzian, Marina Belén; del Negro, Julieta Edith; Navajas, Joaquin (Humanities and Social Sciences Communications (Humanit Soc Sci Commun) ISSN 2662-9992 (online), 2023)
      The COVID-19 pandemic underscored the significance of overcoming vaccine adoption resistance and addressing real and perceived barriers for efficient vaccination campaigns. One major problem faced by health systems around ...
    • Partisanship Predicts COVID-19 Vaccine Brand Preference: The Insightful Case of Argentina 

      Fumagalli, Elena; Navajas, Joaquín; Krick, Candelaria B.; Dolmatzian, Marina B.; Del Negro, Julieta (2022)
      The COVID-19 pandemic highlighted the importance of not only diminishing the resistance to vaccine adoption in general, but also to reduce both real and perceived barriers to a swift vaccination campaign. One major problem ...