Miruna Szabo

Siemens (Germany)

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Gustavo Deco

Institució Catalana de Recerca i Estudis Avançats

M. Stetter

Weihenstephan-Triesdorf University of Applied Sciences

Rita Almeida

Karolinska Institutet

Marco Loh

University of Oxford

N. Orban Nagy

M. De Mattia

Istituto Superiore di Sanità

Stefano Fusi

Columbia University

Paolo Del Giudice

Istituto Superiore di Sanità

Cooperative Institutions

Pompeu Fabra University

Institució Catalana de Recerca i Estudis Avançats

Istituto Superiore di Sanità

Istituto Nazionale di Fisica Nucleare

Monash University

Max Planck Institute for Human Cognitive and Brain Sciences

Universidad Nacional Autónoma de México

Leipzig University

Australian Psychological Society

University Press of Florida

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Computational Neuroscience for Cognitive Brain Functions

Springer eBooks (2006)

Marco Loh Miruna Szabo Rita Almeida M. Stetter Gustavo Deco

Computational neuroscience

10.1007/1-4020-2865-2_11

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Neurodynamical Competition and Cooperation Mechanisms in Brain Functions

Miruna Szabo

Present-day research develops neurodynamical computational models inspired by the structure and properties of the nervous system in order to understand the underlying principles of cognitive brain functions. This work introduces and systematically analyzes two neurodynamical models that study specific cognitive phenomena as effects of multi-area processing. Along with correctly describing the experimental findings on awake behaving mammals, both models help to extract a number of possible underlying principles, like selective filtering, correlation facilitation and selective tuning. These dynamical features represent fundamental building blocks for large-scale neurodynamical multi-area models of cognitive brain function.

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Learning to Attend: Modeling the Shaping of Selectivity in Infero-temporal Cortex in a Categorization Task

Biological Cybernetics (2006)

Miruna Szabo M. Stetter Gustavo Deco Stefano Fusi Paolo Del Giudice

Temporal cortex

10.1007/s00422-006-0054-z

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Citations (27)

Initial experience of the domestic competition policy in the food economy.

N. Orban Nagy Miruna Szabo

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A neuronal model for the shaping of feature selectivity in IT by visual categorization

Neurocomputing (2004)

Miruna Szabo Rita Almeida Gustavo Deco M. Stetter

Neurophysiology

Stimulus (psychology)

Feature (linguistics)

10.1016/j.neucom.2004.10.007

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Citations (4)

Biased Competition and Cooperation: A Mechanism of Mammalian Visual Recognition?

Springer eBooks (2009)

Gustavo Deco M. Stetter Miruna Szabo

Neocortex

10.1007/978-4-431-73019-4_13

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Computational Neuroscience for Cognitive Brain Functions

Springer eBooks (2007)

Marco Loh Miruna Szabo Rita Almeida M. Stetter Gustavo Deco

Computational neuroscience

Computational model

Systems neuroscience

10.1007/978-1-4020-5811-0_11

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Cooperation and biased competition model can explain attentional filtering in the prefrontal cortex

European Journal of Neuroscience (2004)

Miruna Szabo Rita Almeida Gustavo Deco M. Stetter

Abstract Recent neurophysiological experimental results suggest that the prefrontal cortex plays an important role in filtering out unattended visual inputs. Here we propose a neurodynamical computational model of a part of the prefrontal cortex to account for the neural mechanisms defining this attentional filtering effect. Similar models have been employed to explain experimental results obtained during the performance of attention and working memory tasks. In this previous work the principle of biased competition was shown to successfully account for the experimental data. To model the attentional filtering effect, the biased competition model was extended to enable cooperation between stimulus selective neurons. We show that, in a biological relevant minimal model, competition and cooperation between the neurons are sufficient conditions for reproducing the attentional effect. Furthermore, a characterization of the parameter regime where the cooperation effect is observed is presented. Finally, we also reveal parameter regimes where the network has different modes of operation: selective working memory, attentional filtering, pure competition and noncompetitive amplification.

Neurophysiology

Stimulus (psychology)

10.1111/j.1460-9568.2004.03211.x

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Citations (32)