Dresden 2014 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 19: Focus Session: Dynamical Patterns in Neural Systems: From Brain Function to Dysfunction (joint DY/BP)

BP 19.2: Hauptvortrag

Dienstag, 1. April 2014, 10:00–10:30, HÜL 186

Non-standard Interactions in Networks: Synchrony and the Emergence of Neural Activity Patterns — •Marc Timme¹, Sven Jahnke¹, Raoul-Martin Memmesheimer², Wen-Chuang Chou¹, and Christian Tetzlaff¹ — ¹Network Dynamics, MPI for Dynamics and Self-Organization — ²Donders Institute for Neuroscience, University of Nijmegen

Patterns of spatio-temporally distributed neural activity have been experimentally observed in different systems and are intimately related to network function. How spatial and temporal specificity emerge dynamically in neural circuits, however, remains unclear.

Here we demonstrate how non-standard interaction mechanisms such as non-additive coupling and inhibitory feedback co-acting with heterogeneities may generate apparently disordered patterns that yet are precise in space and time and selectively respond to specific inputs only. The results may contribute towards an explanation of sensory processing in olfactory systems and processes involved in memory consolidation.

References: PLoS Comput. Biol. 8:e1002384 (2012); Phys. Rev. X 2:041016 (2012); PLoS Comput. Biol. 9:e1003307 (2013); Chou et al., in prep.