Voir
http://pirstec.scicog.fr/statique/afficher/contenu_ateliers#atel7
Programme :
June 23rd - 9.30 am – 1 pm.
Institut des Systèmes Complexes d'Île-de-france
57-59 rue Lhomond – F-75005, Paris
Joint event of the « PPF Systèmes Complexes en SHS », EHESS,
and of the « Atelier PIRSTEC de prospective sur l’économie comportementale »
Organization:
Sacha Bourgeois-Gironde (Institut Jean-Nicod, ENS-EHESS) [sbgironde@gmail.com]
Jean-Pierre Nadal (CAMS, EHESS et LPS, ENS) [nadal@lps.ens.fr]
Stefan Scherbaum (Technische Universität Dresden)
Maja Dshemuchadse (Technische Universität Dresden)
Neuroeconomics is a rapidly expanding field at the interfaces of the human sciences. The interdisciplinary nature of this field results in several challenges when attempts are made to solve puzzling questions in human decision making, such as why and how people discount future gains. We argue that an empirical approach based on dynamic systems theory (DST) could inspire and advance the neuroeconomic investigation of decision-making processes in three ways: by enriching the mental model, by extending the empirical tool set, and by facilitating interdisciplinary exchange. The present article addresses the challenges neuroeconomics faces by focusing on intertemporal choice. After a brief introduction of DST and related research, a DST-based conceptual model of decision making is developed and linked to underlying neural principles. On this basis, we outline the application of DST-informed empirical strategies to intertemporal choice. Finally, we discuss the general consequences of and possible objections to the proposed approach to research in intertemporal choice and the field of neuroeconomics.
Olivier Oullier (Laboratoire de Neurobiologie Humaine (UMR 6149), Université de Provence)
Spontaneous social coordination has been extensively described in natural settings but so far very few controlled methodological approaches have been employed that systematically advance investigations into the possible self-organized nature of bond formation and dissolution between humans. We hypothesized that, under certain contexts, spontaneous synchrony -a well-described phenomenon in biological and physical settings- could emerge spontaneously between humans as a result of information exchange. Here, a new way to quantify interpersonal interactions in real time is proposed. In a simple experimental paradigm, pairs of participants facing each other are required to actively produce actions, while provided (or not) with the vision of similar actions being performed by someone else. New indices of interpersonal coordination, inspired by the theoretical framework of coordination dynamics (based on relative phase and frequency overlap between movements of individuals forming a pair) were developed and used. Results revealed that spontaneous phase synchrony (i.e., unintentional in-phase coordinated behavior) between two people emerges as soon as they exchange visual information, even if they are not explicitly instructed to coordinate with each other. Using the same tools, we also quantified the degree to which the behavior of each individual remained influenced by the social encounter even after information exchange had been removed, apparently a kind of "motor social memory". We will also discuss ongoing experiments where dynamics of attention load, emotional responses and decisions in economic games are investigated in light of the degree of spontaneous synchronization between individuals.
Sacha Bourgeois-Gironde (Institut Jean-Nicod)
We will present recent work and epistemological reflections upon the neurobiological hypothesis that provide an explanation of how our brain became able to deal with novel economic stimuli from an evolutionary standpoint.