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text: Brain Day, and picture of a brain
Tuesday, April 7, 2026 8:30 am - 9:30 am EDT (GMT -04:00)

Brain Day 2026

Four internationally renowned speakers join us to present lectures from each of the perspectives of neuroscience, computational neuroscience, psychology, and philosophy on the ideas of mind, brain, theories, and models.

This is a free event, and we have a marvellous lineup of speakers. The CTN looks forward to greeting you all on April 7, 2026

Wednesday, April 22, 2026 3:30 pm - 5:59 pm EDT (GMT -04:00)

CTN Seminar Wilten Nicola, DC 1304

On Wednesday, April 22, 3:30 p.m. in DC 1304

Wilten Nicola,  Hotchkiss Brain Institute, U Calgary (https://www.nicolacomputationalneurosciencelab.com/) will speak on

Title:  Subthreshold Asynchronous States and Pattern Generation in Biophysically Detailed Populations of Neurons

Abstract: Learning with spikes is difficult.  Spikes are metabolically costly and difficult to stabilize for computation.  Here, we demonstrate that excitatory/inhibitory asynchronous states can exist without firing spikes through self-sustaining subthreshold voltage fluctuations in networks of biophysically detailed Hodgkin-Huxley neurons.  This novel subthreshold asynchronous state, which we call voltage chaos, can be controlled for useful computation and pattern generation also without firing spikes.  Our work here provides computational evidence for the existence of neural circuits that compute exclusively with subthreshold dynamics.