Mariano Sigman

Summary

Affiliation: Universidad de Buenos Aires
Country: Argentina

Publications

  1. pmc Dynamics of the central bottleneck: dual-task and task uncertainty
    Mariano Sigman
    Unité INSERM 562, Cognitive Neuroimaging, Service Hospitalier Frederic Joliot, CEA DRM DSV, Orsay, France
    PLoS Biol 4:e220. 2006
  2. doi request reprint Illusory displacement due to object substitution near the consciousness threshold
    Mariano Sigman
    Laboratory of Integrative Neuroscience, Physics Department, UBA, Buenos Aires, Argentina
    J Vis 8:13.1-10. 2008
  3. doi request reprint Brain mechanisms of serial and parallel processing during dual-task performance
    Mariano Sigman
    Physics Department, Integrative Neuroscience Laboratory, University of Buenos Aires, 1428 Buenos Aires, Argentina
    J Neurosci 28:7585-98. 2008
  4. pmc Neural processing of emotional facial and semantic expressions in euthymic bipolar disorder (BD) and its association with theory of mind (ToM)
    Agustin Ibanez
    Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive Neurology and Institute of Neuroscience, Favaloro University, Buenos Aires, Argentina
    PLoS ONE 7:e46877. 2012
  5. doi request reprint Cortical deficits of emotional face processing in adults with ADHD: its relation to social cognition and executive function
    Agustin Ibanez
    Institute of Cognitive Neurology INECO, Favaloro University, Buenos Aires, Argentina
    Soc Neurosci 6:464-81. 2011
  6. pmc The neural basis of decision-making and reward processing in adults with euthymic bipolar disorder or attention-deficit/hyperactivity disorder (ADHD)
    Agustin Ibanez
    Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive Neurology, Favaloro University, Buenos Aires, Argentina
    PLoS ONE 7:e37306. 2012
  7. pmc The brain's router: a cortical network model of serial processing in the primate brain
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    PLoS Comput Biol 6:e1000765. 2010
  8. doi request reprint State-dependent changes of connectivity patterns and functional brain network topology in autism spectrum disorder
    Pablo Barttfeld
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA, CONICET, Argentina
    Neuropsychologia 50:3653-62. 2012
  9. pmc Delays without mistakes: response time and error distributions in dual-task
    Juan Esteban Kamienkowski
    Integrative Neuroscience Laboratory, Physics Department, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
    PLoS ONE 3:e3196. 2008
  10. doi request reprint Insular networks for emotional processing and social cognition: comparison of two case reports with either cortical or subcortical involvement
    Blas Couto
    Institute of Cognitive Neurology, Favaloro University, Buenos Aires, Argentina
    Cortex 49:1420-34. 2013

Collaborators

Detail Information

Publications42

  1. pmc Dynamics of the central bottleneck: dual-task and task uncertainty
    Mariano Sigman
    Unité INSERM 562, Cognitive Neuroimaging, Service Hospitalier Frederic Joliot, CEA DRM DSV, Orsay, France
    PLoS Biol 4:e220. 2006
    ..On this basis, we propose a hierarchical model of cognitive architecture that provides a synthesis of task-switching and PRP paradigms...
  2. doi request reprint Illusory displacement due to object substitution near the consciousness threshold
    Mariano Sigman
    Laboratory of Integrative Neuroscience, Physics Department, UBA, Buenos Aires, Argentina
    J Vis 8:13.1-10. 2008
    ..Thus, mutual exclusion of surfaces appears as a cause of masking...
  3. doi request reprint Brain mechanisms of serial and parallel processing during dual-task performance
    Mariano Sigman
    Physics Department, Integrative Neuroscience Laboratory, University of Buenos Aires, 1428 Buenos Aires, Argentina
    J Neurosci 28:7585-98. 2008
    ..The results provide physiological evidence for the coexistence of serial and parallel processes within a cognitive task...
  4. pmc Neural processing of emotional facial and semantic expressions in euthymic bipolar disorder (BD) and its association with theory of mind (ToM)
    Agustin Ibanez
    Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive Neurology and Institute of Neuroscience, Favaloro University, Buenos Aires, Argentina
    PLoS ONE 7:e46877. 2012
    ..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 emotional processing...
  5. doi request reprint Cortical deficits of emotional face processing in adults with ADHD: its relation to social cognition and executive function
    Agustin Ibanez
    Institute of Cognitive Neurology INECO, Favaloro University, Buenos Aires, Argentina
    Soc Neurosci 6:464-81. 2011
    ..This is the first report to reveal an adult ADHD-specific impairment in the cortical modulation of emotion for faces and an association between N170 cortical measures and ToM and EF...
  6. pmc The neural basis of decision-making and reward processing in adults with euthymic bipolar disorder or attention-deficit/hyperactivity disorder (ADHD)
    Agustin Ibanez
    Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive Neurology, Favaloro University, Buenos Aires, Argentina
    PLoS ONE 7:e37306. 2012
    ..Nevertheless, no previous report has assessed a decision-making task that includes the examination of the neural correlates of reward and gambling in adults with ADHD and those with BD...
  7. pmc The brain's router: a cortical network model of serial processing in the primate brain
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    PLoS Comput Biol 6:e1000765. 2010
    ....
  8. doi request reprint State-dependent changes of connectivity patterns and functional brain network topology in autism spectrum disorder
    Pablo Barttfeld
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA, CONICET, Argentina
    Neuropsychologia 50:3653-62. 2012
    ..These results pave the path for diagnosis of mental pathologies based on functional brain networks obtained from a library of mental states...
  9. pmc Delays without mistakes: response time and error distributions in dual-task
    Juan Esteban Kamienkowski
    Integrative Neuroscience Laboratory, Physics Department, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
    PLoS ONE 3:e3196. 2008
    ..of each processing stage are affected by interference. Thus, a critical test to this hypothesis is to explore whether the quality of the decision is unaffected by a concurrent task...
  10. doi request reprint Insular networks for emotional processing and social cognition: comparison of two case reports with either cortical or subcortical involvement
    Blas Couto
    Institute of Cognitive Neurology, Favaloro University, Buenos Aires, Argentina
    Cortex 49:1420-34. 2013
    ..These subjects were very rare cases that included a focal IC lesion and a subcortical focal stroke affecting the connections of the IC with frontotemporal areas...
  11. doi request reprint Limits on introspection: distorted subjective time during the dual-task bottleneck
    Guido Corallo
    Integrative Neuroscience Laboratory, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    Psychol Sci 19:1110-7. 2008
    ..These results suggest that introspective estimates of time spent on a task tightly correlate with the period of availability of central processing resources...
  12. doi request reprint The cortical processing of facial emotional expression is associated with social cognition skills and executive functioning: a preliminary study
    Agustín Petroni
    National Scientific and Technical Research Council CONICET, Buenos Aires, Argentina
    Neurosci Lett 505:41-6. 2011
    ..Executive functioning ability also correlated with the cortical discrimination of complex emotional stimuli. Our findings suggest that the cortical processing of facial emotional expression is associated with social cognition skills...
  13. doi request reprint Eye fixations indicate men's preference for female breasts or buttocks
    Bruno Dagnino
    Department of Physics, University of Buenos Aires, Buenos Aires, Argentina
    Arch Sex Behav 41:929-37. 2012
    ..We found that the first and last fixations were systematically directed towards the self-reported preferred trait...
  14. pmc Preliminary evidence about the effects of meditation on interoceptive sensitivity and social cognition
    Margherita Melloni
    Laboratory of Experimental Psychology and Neuroscience LPEN, INECO Institute of Cognitive Neurology and Institute of Neuroscience, Favaloro, Favaloro University, C1078AAI, Buenos Aires, Argentina
    Behav Brain Funct 9:47. 2013
    ..All participants were examined with a battery of different tasks including mood state, executive function and social cognition tests (emotion recognition, empathy and theory of mind)...
  15. pmc Distinct patterns of functional brain connectivity correlate with objective performance and subjective beliefs
    Pablo Barttfeld
    Laboratory of Integrative Neuroscience, Physics Department, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires and Instituto de Física de Buenos Aires, CONICET, Pabellon 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
    Proc Natl Acad Sci U S A 110:11577-82. 2013
    ..These results suggest the existence of functional brain networks indexing objective performance and accuracy of subjective beliefs distinctively expressed in a set of stable mental states. ..
  16. doi request reprint A big-world network in ASD: dynamical connectivity analysis reflects a deficit in long-range connections and an excess of short-range connections
    Pablo Barttfeld
    Integrative Neuroscience Laboratory, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    Neuropsychologia 49:254-63. 2011
    ..Together these results show that delta-band coherence reveal qualitative and quantitative aspects associated with ASD pathology...
  17. doi request reprint The dynamics of sensory buffers: geometric, spatial, and experience-dependent shaping of iconic memory
    Martin Graziano
    Integrative Neuroscience Laboratory, Physics Department, Universidad de Buenos Aires, Argentina
    J Vis 8:9.1-13. 2008
    ..We discuss our results on the context of a model of information access to executive control and how it is affected by learning and attention...
  18. doi request reprint Neurophysiology of perceived confidence
    Martin Graziano
    Laboratory of Integrative Neuroscience, School of Exact and Natural Science, University of Buenos Aires, Argentina
    Conf Proc IEEE Eng Med Biol Soc 2010:2818-21. 2010
    ....
  19. doi request reprint Classical conditioning in the vegetative and minimally conscious state
    Tristan A Bekinschtein
    Institute of Cognitive Neurology, Buenos Aires, Argentina
    Nat Neurosci 12:1343-9. 2009
    ..Our results suggest that individuals with DOCs might have partially preserved conscious processing, which cannot be mediated by explicit reports and is not detected by behavioral assessment...
  20. pmc Parsing a cognitive task: a characterization of the mind's bottleneck
    Mariano Sigman
    Unité INSERM 562, Cognitive Neuroimaging Service Hospitalier Frédéric Joliot, CEA DRM DSV, Orsay Cedex, France
    PLoS Biol 3:e37. 2005
    ..The other stages, mapping the numeral to an internal quantity and executing the motor response, can be carried out in parallel with another task. Changing the duration of these processes has no significant effect on the variance...
  21. ncbi request reprint The neural code for written words: a proposal
    Stanislas Dehaene
    INSERM Unit 562, Cognitive Neuroimaging, Service Hospitalier Frederic Joliot, CEA DRM DSV 4 Place du general Leclerc, 91401 Orsay Cedex, France
    Trends Cogn Sci 9:335-41. 2005
    ..Our proposal can explain why the detection of 'open bigrams' (ordered pairs of letters) constitutes an important stage in visual word recognition...
  22. doi request reprint The human Turing machine: a neural framework for mental programs
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA, CONICET, Pabellon 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
    Trends Cogn Sci 15:293-300. 2011
    ..Productions change the state of sensory and mnemonic neurons and iteration of such cycles provides a basis for mental programs...
  23. pmc Organization of brain networks governed by long-range connections index autistic traits in the general population
    Pablo Barttfeld
    Institute of Cognitive Neurology INECO, Favaloro University, Buenos Aires, Argentina
    J Neurodev Disord 5:16. 2013
    ..We hypothesized that individual differences in autistic traits of typical subjects would involve a long-range connectivity diminution within the delta band...
  24. doi request reprint When order matters: last-come first-served effect in sequential arithmetic operations
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA, CONICET, Pabellon 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
    J Integr Neurosci 11:385-99. 2012
    ..We suggest that streams of stimuli may be chunked in events in which the last stimuli may override previous items from sensory buffers...
  25. doi request reprint Eye gaze reveals a fast, parallel extraction of the syntax of arithmetic formulas
    Elisa Schneider
    Laboratory of Integrative Neuroscience, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    Cognition 125:475-90. 2012
    ..These findings provide strong evidence for a syntactic organization for arithmetic thinking, paving the way for further comparative analysis of differences and coincidences in the instantiation of recursion in language and mathematics...
  26. doi request reprint Decision making during the psychological refractory period
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA, CONICET, Pabellon 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
    Curr Biol 22:1795-9. 2012
    ....
  27. doi request reprint Eye movements blink the attentional blink
    Juan E Kamienkowski
    Laboratory of Integrative Neuroscience, Physics Department, Exact and Natural Science School, University of Buenos Aires, Buenos Aires, Argentina
    J Exp Psychol Hum Percept Perform 38:555-60. 2012
    ..These studies support current views that episodes should have an effect on the AB and provide evidence that eye movements play an important role in the formation of episodes...
  28. pmc Choosing in freedom or forced to choose? Introspective blindness to psychological forcing in stage-magic
    Diego E Shalom
    Laboratory of Integrative Neuroscience, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    PLoS ONE 8:e58254. 2013
    ..Pupil dilatation, which is known to tag slow cognitive events related to memory and attention, constitutes an efficient fingerprint to index subjective and objective aspects of choice...
  29. doi request reprint Do not fear your opponent: suboptimal changes of a prevention strategy when facing stronger opponents
    Diego Fernández Slezak
    Computer Science Department, School of Sciences, University of Buenos Aires, Argentina
    J Exp Psychol Gen 141:527-38. 2012
    ....
  30. doi request reprint Looking at Breakout: urgency and predictability direct eye events
    Diego E Shalom
    Laboratory of Integrative Neuroscience, Physics Department, University of Buenos Aires, Buenos Aires, Argentina
    Vision Res 51:1262-72. 2011
    ..These results pave the path to understand the taxonomy of eye-movements on natural configurations in which stimuli and goals switch dynamically in time...
  31. ncbi request reprint Functional segregation of cortical language areas by sentence repetition
    Ghislaine Dehaene-Lambertz
    Unité INSERM 562, Service Hospitalier Frederic Joliot, CEA DRM DSV, Orsay, France gdehaene2shfj cea fr
    Hum Brain Mapp 27:360-71. 2006
    ..The results demonstrate the feasibility of using sentence-level adaptation to probe the functional organization of cortical language areas...
  32. pmc The construction of confidence in a perceptual decision
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA CONICET, Buenos Aires, Argentina Instituto de Ingeniería Biomédica, Facultad de Ingenieria, Universidad de Buenos Aires Buenos Aires, Argentina Department of Vision and Cognition, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences Amsterdam, Netherlands
    Front Integr Neurosci 6:79. 2012
    ..Our findings challenge classical models of subjective confidence-which posit that the difference of evidence in favor of each choice is the seed of the confidence signal...
  33. pmc The tell-tale heart: heart rate fluctuations index objective and subjective events during a game of chess
    María J Leone
    Physics Department, School of Sciences, University of Buenos Aires Buenos Aires, Argentina
    Front Hum Neurosci 6:273. 2012
    ..Our data demonstrate that even if HR constitutes a relatively broad marker integrating a myriad of physiological variables, its dynamic is rich enough to reveal relevant episodes of inner thought...
  34. ncbi request reprint The taste of music
    Bruno Mesz
    Laboratorio de Acústica y Percepción Sonora, Universidad Nacional de Quilmes, 1888, Buenos Aires, Argentina
    Perception 40:209-19. 2011
    ....
  35. pmc Vocal caricatures reveal signatures of speaker identity
    Sabrina Lopez
    Dynamical Systems Lab, IFIBA Physics dept, University of Buenos Aires, Pabellon 1, Ciudad Universitaria, CABA 1428EGA, Argentina
    Sci Rep 3:3407. 2013
    ..We therefore show the way in which acoustic caricatures emphasize identity features at the cost of loosing similarity, which allows drawing an analogy with caricatures in the visual space. ..
  36. pmc Pupil dilation: a fingerprint of temporal selection during the "attentional blink"
    Ariel Zylberberg
    Laboratory of Integrative Neuroscience, Physics Department, FCEyN UBA and IFIBA, CONICET Buenos Aires, Argentina
    Front Psychol 3:316. 2012
    ..Furthermore, given the known relation between the pupil dilation and the activity of the locus coeruleus, our results also support theories that link the serial stage to the action of a specific neuromodulator, norepinephrine...
  37. pmc Neurophysiological bases of exponential sensory decay and top-down memory retrieval: a model
    Ariel Zylberberg
    Physics Department, University of Buenos Aires Buenos Aires, Argentina
    Front Comput Neurosci 3:4. 2009
    ....
  38. pmc Bridging psychology and mathematics: can the brain understand the brain?
    Mariano Sigman
    Cognitive Neuroimaging Research Unit of l Institut National de la Santé et de la recherche Médicale, Orsay, France
    PLoS Biol 2:E297. 2004
  39. pmc The spatial and temporal construction of confidence in the visual scene
    Martin Graziano
    Physics Department, Integrative Neuroscience Laboratory, Universidad de Buenos Aires, Buenos Aires, Argentina
    PLoS ONE 4:e4909. 2009
    ..Our study allowed us to asses quantitatively the temporal and spatial access to an objective response and to subjective reports...
  40. pmc Functional organization of perisylvian activation during presentation of sentences in preverbal infants
    Ghislaine Dehaene-Lambertz
    Institut National de la Sante et de la Recherche Medicale, U562, and Commissariat à l Energie Atomique, 4 Place du General Leclerc, 91400 Orsay, France
    Proc Natl Acad Sci U S A 103:14240-5. 2006
    ..Our results point to a complex, hierarchical organization of the human brain in the first months of life, which may play a crucial role in language acquisition in our species...
  41. pmc Top-down reorganization of activity in the visual pathway after learning a shape identification task
    Mariano Sigman
    The Rockefeller University, New York, New York, USA
    Neuron 46:823-35. 2005
    ....
  42. ncbi request reprint Hierarchical coding of letter strings in the ventral stream: dissecting the inner organization of the visual word-form system
    Fabien Vinckier
    INSERM, U562 Orsay, France
    Neuron 55:143-56. 2007
    ....