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Emotional Agents at the Square Lattice

Agnieszka Czaplicka ,  Anna Chmiel ,  Janusz A. Hołyst 

Warsaw University of Technology, Faculty of Physics, Koszykowa 75, Warszawa 00-662, Poland
Warsaw University of Technology, Centre of Excellence for Complex Systems Research, Koszykowa 75, Warszawa 00-662, Poland

Abstract

We introduce and investigate by numerical simulations a number of  models of emotional agents at the square lattice. Our models describe the most general features of emotions such as the spontaneous emotional arousal,  emotional relaxation, and transfers of emotions between different agents.  Group emotions in the considered models are periodically fluctuating between two opposite valency levels and as result the mean value of such group emotions  is zero.  The oscillations amplitude  depends  strongly on  probability ps of the individual spontaneous arousal. For small values of relaxation times  τ we observed a stochastic resonance, i.e. the signal to noise ratio SNR is maximal  for a non-zero ps parameter. The amplitude increases with the probability p of local affective interactions while the mean oscillations period increases with the relaxation time τ and is only weakly dependent on other system parameters.  Presence of emotional antenna can enhance positive or negative emotions and for the optimal transition probability the antenna  can  change agents emotions at longer distances. The stochastic resonance was also observed for the influence of emotions on task execution efficiency.

 

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Presentation: Poster at 5 Ogólnopolskie Sympozjum "Fizyka w Ekonomii i Naukach Społecznych", by Agnieszka Czaplicka
See On-line Journal of 5 Ogólnopolskie Sympozjum "Fizyka w Ekonomii i Naukach Społecznych"

Submitted: 2010-10-13 12:17
Revised:   2010-11-22 10:01