# Online Seminar: Statistical mechanics foundation of Weber-Fechner laws

#### Online Seminar: Statistical mechanics foundation of Weber-Fechner laws

- Event time: 11:30am until 12:30pm
- Event date: 21st October 2020
- Speaker: Christian Maes (University of Leuven)
- Location: Online - see email.

### Event details

Even though the phenomenological relations between perception and stimulus have been firmly established, a theoretical argument for Weber's and Fechner's law in terms of relevant models or from statistical physics is largely missing. We present such a discussion in terms of response theory for nonequilibrium systems, where the induced displacement or current, which stands for the perceived stimulus, crucially depends on the change in time-symmetric reactivities. Stationary nonequilibria may indeed generate extra currents by changing the dynamical activity. The argument finishes by understanding how the extra dynamical activity logarithmically encodes the actual stimulus.

### About Statistical Physics and Complexity Group meetings

This is a weekly series of webinars on theoretical aspects of Condensed Matter, Biological, and Statistical Physics. It is open to anyone interested in research in these areas..

Find out more about Statistical Physics and Complexity Group meetings.