Math Bio Seminar

Rosangela Follmann
Computational and experimental transitions in neuronal states


Transitions are a common phenomenon in nature, from water state transitions to migrating cells during healing process. Transitions are also present in neurological processes, such as in sleep cycles and motor output. In this talk we will discuss a particular type of transition between neuronal patterns characterized by changes in neuronal activity between tonic and bursting. We will present a mathematical neuronal model and explore its rich dynamics, discussing transitions elicited under distinct conditions, and common features that arise. Our simulations have shown that these transitions are mediated by chaos. We will present experimental evidence of such transitions in the motor neurons of the stomatogastric ganglion of the crab, along with the corresponding mathematical model. We will further discuss difficulties encountered distinguishing chaos from stochasticity in experimental settings.

Event Date: 
April 15, 2024 - 3:30pm to 4:30pm
105 MLH
Calendar Category: 
Seminar Category: 
Mathematical Biology