Hippocampal disinhibitory circuits: cell types, connectivity and function
After the talk, at 7pm, everyone is welcome to join for a virtual "pub chat" with Prof. Lisa Topolnik. Details on how to join the talk and the informal "pub chat" will be released via our mailing list (info on how to subscribe on https://cortexclub.com)
The concept of a dynamic excitation / inhibition ratio, that can shape information flow in cortical circuits during complex behavioural tasks due to circuit disinhibition, has recently arisen as an important and conserved processing motif. It has been also recognized that, in cortical circuits, a subpopulation of GABAergic cells that express vasoactive intestinal polypeptide (VIP) innervates selectively inhibitory interneurons, providing for circuit disinhibition as a possible outcome, depending on the network state and behavioural context. In this talk, I will highlight the latest discoveries on the dynamic organization of hippocampal disinhibitory circuits with a focus on VIP-expressing interneurons. I will discuss the neuron types that can be involved in disinhibition and their local circuit and long-range synaptic connections. I will also discuss some recent findings on how hippocampal VIP circuits may coordinate spatial learning.
Date: 25 June 2020, 17:30 (Thursday, 9th week, Trinity 2020)
Venue: Online talk - Details on how to join the talk and the virtual "pub chat" will be released via our mailing list (info on how to subscribe on https://cortexclub.com)
Speaker: Prof. Lisa Topolnik (Université Laval)
Organiser: Cortex Club (University of Oxford)
Organiser contact email address: cortex.club@studentclubs.ox.ac.uk
Host: Naroa Ibarra Aizpurua (University of Oxford)
Part of: Cortex Club - Oxford Neuroscience Society
Topics:
Booking required?: Not required
Audience: Public
Editors: Raffaele Sarnataro, Marta Blanco pozo, Ilenia Salaris