Imaging the influences of sensory experience on visual system circuit development
Schedule
Monday, May 17, 2021
05:00 UTC
Ed Ruthazer
Dr.
Montreal Neurological Institute-Hospita
Host: Manitoba Neuroscience Network
Recording
Open recording
Event Information
Recording
Available
Host
Manitoba Neuroscience Network
Duration
70 minutes
Abstract
Using a combination of in vivo imaging of neuronal circuit functional and structural dynamics, we have investigated the mechanisms by which patterned neural activity and sensory experience alter connectivity in the developing brain. We have identified, in addition to the long-hypothesized Hebbian structural plasticity mechanisms, a kind of plasticity induced by the absence of correlated firing that we dubbed “Stentian plasticity”. In the talk I will discuss the phenomenology and some mechanistic insights regarding Stentian mechanisms in brain development. Further, I will show how glia may have a key role in circuit remodeling during development. These studies have led us to an appreciation of the importance of neuron-glia interactions in early development and the ability of patterned activity to guide circuit wiring.
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