Colloquium Talk - Nils Baas (NTNU): Topology of Brain Cells


In my talk I will discuss the use of topological methods in the analysis of neural data. The key idea is to associate a space to the data set and then determine its shape by using persistent homology. In this way we have obtained good state spaces for Head Direction Cells and Grid Cells. Topological decoding shows how neural firing patterns determine behaviour.This is an interesting local to global situation which gives rise to some reflections. Based on very recent experimental results from the Moser-Lab at NTNU we show that the state space of a population of grid cells is a two dimensional torus!


Coffee, tea and biscuits from 14.00

Published Feb. 27, 2020 1:02 PM - Last modified Feb. 27, 2020 1:02 PM