Uncertainty, Precision, Prediction Errors - and their Relevance to Computational Psychiatry

Speaker: Dr Christophe Mathys, University College, London

Abstract: Navigating an uncertain environment requires the continual tracking and prediction of relevant states of the outside world. Perhaps surprisingly, the computations needed to do this can be formalized using only a small number of concepts whose relation to each other follows the same pattern across domains of application. I will introduce these concepts - namely predictions, prediction errors, and precision ratios - and the way they relate to each other. Given their generality, it is plausible that their misalignment might underlie many aspects of psychiatric illness. I will show how such misalignments have been used to explain psychiatric symptoms, and I will briefly introduce some of the neurobiological models involved in these explanations.

Event date: 
Fri, 06/03/2015 - 1:00pm to 2:00pm
Location: 
Black Dog Institute Lecture Theatre
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