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CANCELLED - To Be Rescheduled. The subthalamic nucleus and self-control: evidence from neuromodulation
The subthalamic nucleus (STN) is a critical structure underlying self-control. It is implicated in inhibitory processes and its position within the indirect pathway and receiving hyperdirect cortical projections emphasizes its role as a nexus for integration. Clinically, the STN is a target for deep brain stimulation for Parkinson’s disease and obsessive-compulsive disorder (OCD) with preclinical evidence suggesting a role for addictions. Here I will describe a body of research in OCD patients with deep brain stimulation targeting the associative-limbic STN focusing on subtypes of decisional impulsivity. I argue that these disparate findings can be linked through the effect of STN stimulation on decreasing decision thresholds, and on valence and affect. I further elaborate on a novel transcranial magnetic stimulation application using paired associative stimulation demonstrating the capacity to modulate response inhibition via cortical-STN pathways. Together, these findings expand on STN function and self-control and highlight its translational and therapeutic relevance to psychiatric disorders.
Date:
23 January 2018, 9:30
Venue:
Warneford Hospital, Headington OX3 7JX
Venue Details:
Seminar Room, University Department of Psychiatry
Speaker:
Dr Valerie Voon (Senior Research Associate, Department of Psychiatry, University of Cambridge)
Organising department:
Department of Psychiatry
Organiser:
Tracy Lindsey
Part of:
Psychiatry Seminars
Booking required?:
Not required
Audience:
Members of the University only
Editor:
Tracy Lindsey
