GATSBY COMPUTATIONAL NEUROSCIENCE UNIT
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Dynamics and optimality of choice and decision-making

Marius Usher, Rafal Bogacz & James L. McClelland
School of Psychology , Birkbeck , UK

I will review a simple neurocomputational model of choice, and show that it can account for individual difference in how people integrate information for choice. I will then show that non-linearities and lateral-inhibition privide a mechanism that can optimise choice performance, in choice between multiple-alternatives. Finally, I will show how this model can be extended to value-based decisions, accounting for preference-reversals and a number of violations of `normativity'.