UJFALUSSY, Balázs

Name: Balázs Ujfalussy
Current Address: MTA KOKI, Lendület Laboratory of Neuronal Signalling
E-mail: balazs.ujfalussy at gmail dot com
Qualification: biologist
Position: research assistant

Studies

Research interests

How does the brain process, represent and store information relevant for making fast and reliable decisions supporting adaptive behavior? How does our brain build models of the environments and use this model to control actions? Animals' ability to update their knowledge about their current position solely by integrating their movements is a particular example of using such models.

To get more insight into the underlying neural computations I build computational models at several levels and study information processing in the mammalian hippocampus. Outstanding questions of my research are: How the brain combines sensory information with internal models to update its current beliefs about the environment? What is the consequence of a local Hebbian plasticity on spatial representation in the hippocampus? How the morphology of the dendritic tree shapes the receptive field of neurons by constraining computations at the single-cell level?

Publications: Peer-reviewed papers

Refereed conference proceedings

  • B. Ujfalussy, P. Erős, Z. Somogyvári and T. Kiss: Episodes in space: A modelling study of hippocampal place representation M. Asada et al (Eds): SAB 2008, LNAI 5040, pp. 123­-136, Springer-Verlag Berlin Heidelberg, 2008.
  • Dollé, L.; Sheynikhovich, D.; Girard, B.; Ujfalussy, B.; Chavarriaga, R. and Guillot, A. Analyzing interactions between cue-guided and place-based navigation with a computational model of action selection: Influence of sensory cues and training. Meyer, J.-A; et al. (Eds.) LNAI - Simulation of Adaptive Behavior 6226, 335-346, Springer-Verlag (2010)

Book chapter

  • P. Érdi, T. Kiss and B. Ujfalussy. Multi-level Models. in Hippocampal Microcircuits., eds.: V. Cutsuridis; B. Graham; S. Cobb; I. Vida. Springer-Verlag (2010)

Unrefereed conference proceedings (Abstracts)

  • B Ujfalussy, T. Kiss and P. Érdi: Does dendritic processing shape spatial representation in the hippocampus? IBRO workshop, Pécs, Hungary (2010)
  • Balázs Ujfalussy, Tamás Kiss and Péter Érdi: Parallel computational subunits in dentate granule cells generate multiple place fields, CNS*2009 Berlin, Germany (2009)
  • Balázs Ujfalussy, Tamás Kiss and Péter Érdi: Independence of the granule cell's dendritic branches leads to multiple place fields in the dentate gyrus, Proceedings of 5th Cosyne, p213, Salt Lake City, Utah, 2008
  • Balázs Ujfalussy, Tamás Kiss, Mihály Hajós and Péter Érdi: Theta synchronization in the medial septum and the role of the recurrent connections, MITT Szeged, 2007.01.26.
  • Balázs Ujfalussy, Tamás Kiss, Mihály Hajós and Péter Érdi: Theta synchronization in the medial septum and the role of the recurrent connections, CNS Edinburgh 2006.06.18.
  • Balázs Ujfalussy, Tamás Kiss and Péter Érdi: Competing Models of Theta Synchronization in the Medial Septum, FENS, Wien, A149.2, 2006.06.11.
  • Ujfalussy Balázs, Orbán Gergõ, Kiss Tamás, William E. Hoffmann, Péter Érdi, Hajós Mihály: Anxiolytics and Septo-hippocamapal Oscillation: Pharmacological and Computational Analysis of Action of GABA-A alpha-1 and alpha-2 Receptor Allosteric Modulators, Ideggyógyászati szemle - Clinical Neuroscience 58(1), 2005

Oral Presentations

  • Workshop on 'Cortical Oscillations: Mechanistic and Computational Aspects’: How do medial septal neurons pace the hippocampal theta rhythm?, CNS 2009, Berlin; organizer: Caroline Geisler, Horacio G. Rotstein
  • PGCN course and workshop on the Hippocampus and Navigation: Clustered plasicity in dentate granule cells leads to multiple place fields, Gulbenkian Institute, Oeiras, Portugal, 2008; organizer: Maté Lengyel and Miguel Remondes
  • Workshop on 'Cortico-Hippocampal dynamics: Navigation and Neuromodulation’: Competing Models of Theta Synchronization in the Medial Septum, Budapest (Hungary) 2006; organizer: Péter Érdi
Born: 17th February, 1982, Budapest, Hungary
Languages: English (intermediate), French (intermediate)
Marital status: married, two children