Gamma Synchronization Influences Map Formation Time in a Topological Model of Spatial Learning
نویسندگان
چکیده
The mammalian hippocampus plays a crucial role in producing a cognitive map of space-an internalized representation of the animal's environment. We have previously shown that it is possible to model this map formation using a topological framework, in which information about the environment is transmitted through the temporal organization of neuronal spiking activity, particularly those occasions in which the firing of different place cells overlaps. In this paper, we discuss how gamma rhythm, one of the main components of the extracellular electrical field potential affects the efficiency of place cell map formation. Using methods of algebraic topology and the maximal entropy principle, we demonstrate that gamma modulation synchronizes the spiking of dynamical cell assemblies, which enables learning a spatial map at faster timescales.
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1 Department of Physics, Rice University, 6100 Main St. Houston, TX 77005 US 2Department of Mathematics, Tokyo Women’s Christian University, 2-6-1 Zempukuji, Suginami-ku, Tokyo 167-8585, Japan 3Jan and Dan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX 77030, USA 4Department of Computational and Applied Mathematics, Rice University, Houston, TX 77005, USA ∗e-mai...
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