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   Process dynamics in delay discounting decisions: An attractor dynamics approach  
   
نویسنده scherbaum s. ,frisch s. ,leiberg s. ,lade s.j. ,goschke t. ,dshemuchadse m.
منبع judgment and decision making - 2016 - دوره : 11 - شماره : 5 - صفحه:472 -495
چکیده    How do people make decisions between an immediate but small reward and a delayed but large one? the outcome of such decisions indicates that people discount rewards by their delay and hence these outcomes are well described by discounting functions. however,to understand irregular decisions and dysfunctional behavior one needs models which describe how the process of making the decision unfolds dynamically over time: how do we reach a decision and how do sequential decisions influence one another? here,we present an attractor model that integrates into and extends discounting functions through a description of the dynamics leading to a final choice outcome within a trial and across trials. to validate this model,we derive qualitative predictions for the intra-trial dynamics of single decisions and for the inter-trial dynamics of sequences of decisions that are unique to this type of model. we test these predictions in four experiments based on a dynamic delay discounting computer game where we study the intra-trial dynamics of single decisions via mouse tracking and the intertrial dynamics of sequences of decisions via sequentially manipulated options. we discuss how integrating decision process dynamics within and across trials can increase our understanding of the processes underlying delay discounting decisions and,hence,complement our knowledge about decision outcomes. © 2016.
کلیدواژه Attractor dynamics; Decision making; Delay discounting; Hysteresis; Mouse tracking; Neural attractor model; Process dynamics
آدرس department of psychology,technische universität dresden,zellescher weg 17,dresden,01062, Germany, department of psychology,technische universität dresden, Germany, department of economics,university of zurich, Switzerland, stockholm resilence centre,stockholm univerisity,sweden,nordita,kth royal institute of technology and stockholm university, Sweden, department of psychology,technische universität dresden, Germany, department of psychology,technische universität dresden, Germany
 
     
   
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