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Science
Dorje C Brody, Professor of Mathematics, University of Surrey

The mathematics of human behaviour: how my new model can spot liars and counter disinformation

Maths can describe how we update our views to make a decision based on the information available. Triff/Shutterstock

Understanding the human mind and behaviour lies at the core of the discipline of psychology. But to characterise how people’s behaviour changes over time, I believe psychology alone is insufficient – and that additional mathematical ideas need to be brought forward.

My new model, published in Frontiers in Psychology, is inspired by the work of the 19th-century American mathematician, Norbert Wiener. At its heart is how we change our perceptions over time when tasked with making a choice from a set of alternatives. Such changes are often generated by limited information, which we analyse before making decisions that determine our behavioural patterns.

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