Listar Laboratorio de Neurociencia por autor "Sigman, Mariano"
Mostrando ítems 21-39 de 39
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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 ... -
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 ... -
Peer tutoring of computer programming increases exploratory behavior in children
de la Hera, Diego P.; Zanoni, María B.; Sigman, Mariano; Calero, Cecilia (Journal of Experimental Child Psychology, 2022)There is growing interest in teaching computer science and programming skills in schools. Here we investigated the efficacy of peer tutoring, which is known to be a useful educational resource in other domains but never ... -
Preliminary evidence about the effects of meditation on interoceptive sensitivity and social cognition
Melloni, Margherita; Sedeño, Lucas; Couto, Blas; Reynoso, Martín; Gelormini, Carlos; Favaloro, Roberto; Canales-Johnson, Andrés; Sigman, Mariano; Manes, Facundo; Ibáñez, Agustín (2013-12-23)Background: Interoception refers to the conscious perception of body signals. Mindfulness is a meditation practice that encourages individuals to focus on their internal experiences such as bodily sensations, thoughts, ... -
Producing or reproducing reasoning? Socratic dialog is very effective, but only for a few
Goldin, Andrea Paula; Pedroncini, Olivia; Sigman, Mariano (2017-03-23)Successful communication between a teacher and a student is at the core of pedagogy. A well known example of a pedagogical dialog is `Meno', a socratic lesson of geometry in which a student learns (or `discovers') how ... -
Proprioceptive body illusions modulate the visual perception of reaching distance
Petroni, Agustín; Carbajal, M. Julia; Sigman, Mariano (2015-06-25)The neurobiology of reaching has been extensively studied in human and non-human pri- mates. However, the mechanisms that allow a subject to decide—without engaging in explicit action—whether an object is reachable are not ... -
Quantitative pedagogy : a digital two player game to examine communicative competence
López-Rosenfeld, Matías; Carrillo, Facundo; Garbulsky, Gerry; Fernandez Slezak, Diego; Sigman, Mariano (2015-11-10)nner concepts are much richer than the words that describe them. Our general objective is to inquire what are the best procedures to communicate conceptual knowledge. We con- struct a simplified and controlled setup emulating ... -
Serial, parallel and hierarchical decision making in primates
Zylberberg, Ariel; Lorteije, Jeannette AM; Ouellette, Brian G; Zeeuw, Chris I De; Sigman, Mariano; Roelfsema, Pieter (2017-06-26)he study of decision-making has mainly focused on isolated decisions where choices are associated with motor actions. However, problem-solving often involves considering a hierarchy of sub-decisions. In a recent study ... -
Social validation influences individuals’ judgments about ownership
Casiraghi, Leandro; Faigenbaum, Gustavo; Chehtman, Alejandro; Sigman, Mariano (2018-06-30)In all domains, from informal to formal, there are conflicts about property and ownership which resolution demands consideration of alleged claims from more than one party. In this work we asked adults (N = 359) to judge ... -
The language of geometry : fast comprehension of geometrical primitives and rules in human adults and preschoolers
Amalric, Marie; Wang, Liping; Pica, Pierre; Figueira, Santiago; Sigman, Mariano; Dehaene, Stanislas (2017-01-26) -
The neural basis of decision-making and reward processing in adults with euthymic bipolar disorder or attention-deficit/hyperactivity disorder (ADHD)
Ibañez, Agustín; Cetkovich, Marcelo; Petroni, Agustín; Urquina, Hugo; Baez, Sandra; Gonzalez-Gadea, María Luz; Kamienkowski, Juan Esteban; Torralva, Teresa; Torrente, Fernando; Strejilevich, Sergio; Teitelbaum, Julia; Hurtado, Esteban; Guex, Raphael; Melloni, Margherita; Lischinsky, Alicia; Sigman, Mariano; Manes, Facundo (2012-05-18)Background: Attention-deficit/hyperactivity disorder (ADHD) and bipolar disorder (BD) share DSM-IV criteria in adults and cause problems in decision-making. Nevertheless, no previous report has assessed a decision-making ... -
The presence of irrelevant alternatives paradoxically increases confidence in perceptual decisions
Sigman, Mariano; Comay, Nicolás; Della Bella, Gabriel; Lamberti, Pedro; Solovey, Guillermo; Barttfeld, Pablo (Cognition, 2023)Confidence in perceptual decisions is thought to reflect the probability of being correct. According to this view, confidence should be unaffected or minimally reduced by the presence of irrelevant alternatives. To test ... -
The Spatial and Temporal Construction of Confidence in the Visual Scene
Graziano, Martín; Sigman, Mariano (2009-03-17)Human subjects can report many items of a cluttered field a few hundred milliseconds after stimulus presentation. This memory decays rapidly and after a second only 3 or 4 items can be stored in working memory. Here we ... -
Time-order-errors and duration ranges in the episodic Temporal generalization task
Mikulan, Ezequiel P.; Bruzzone, Manuel; Serodio, Manuel; Sigman, Mariano; Bekinschtein, Tristan A.; García, Adolfo M.; Sedeño, Lucas; Ibáñez, Agustín (2007-01-01) -
Working Memory for Spatial Sequences: Developmental and Evolutionary Factors in Encoding Ordinal and Relational Structures
Sigman, Mariano; He Shang; Yanfen Zhen; Shijing Yu; Tenghai Long; Bingqian Zhang; Xinjian Jiang; Junru Li; Wen Fang; Dehane, Stanislas; Liping Wang (Journal of Neuroscience, 2022)Sequence learning is a ubiquitous facet of human and animal cognition. Here, using a common sequence reproduction task, we investigated whether and how the ordinal and relational structures linking consecutive elements ...