Assessing criticality in pre-seizure single-neuron activity of human epileptic cortex

no code implementations • 22 Apr 2020 • Annika Hagemann, Jens Wilting, Bita Samimizad, Florian Mormann, Viola Priesemann

Epileptic seizures are characterized by abnormal and excessive neural activity, where cortical network dynamics seem to become unstable.

Tailored ensembles of neural networks optimize sensitivity to stimulus statistics

1 code implementation • 24 May 2019 • Johannes Zierenberg, Jens Wilting, Viola Priesemann, Anna Levina

The dynamic range of stimulus processing in living organisms is much larger than a single neural network can explain.

Disordered Systems and Neural Networks Neurons and Cognition

Description of spreading dynamics by microscopic network models and macroscopic branching processes can differ due to coalescence

1 code implementation • 24 May 2019 • Johannes Zierenberg, Jens Wilting, Viola Priesemann, Anna Levina

Spreading processes are conventionally monitored on a macroscopic level by counting the number of incidences over time.

Neurons and Cognition Disordered Systems and Neural Networks Physics and Society