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   choice quality as a function of decision accuracy and search cost  
   
نویسنده rastgoo sisakht reza ,mousavi shabnam ,negarandeh rahimeh ,valizadegan hamid ,noroozian maryam ,tehrani-doost mehdi ,razaghi emran mohammad
منبع iranian journal of psychiatry - 2019 - دوره : 14 - شماره : 3 - صفحه:203 -210
چکیده    Objective: a prominent challenge in modeling choice is specification of the underlying cognitive processes. many cognitive-based models of decision-making draw substantially on algorithmic models of artificial intelligence and thus rely on associated metaphors of this field. in contrast, the current study avoids metaphors and aims at a first-hand identification of the behavioral elements of a process of choice. method: we designed a game in mouselab resembling the real-world procedure of choosing a wife. 17 male subjects were exposed to cost-benefit decision criteria that closely mimic their societal respective conditions. results: the quality of choice index was measured with respect to its sensitivity to the final outcomes as well as process tracing of decisions. the correlation between this index and individual components of process tracing are discussed in detail. the choice quality index can be configured as a function of expected value and utility. in our sample the quality of choice with an average of 75.98% (sd: ±12.67) suggests that subjects obtained close to 76% of their expected gains. conclusion: the quality of choice index, therefore, may be used for comparison of different conditions where the variables of decision-making are altered. the analysis of results also reveals that the cost of incorrect choice is significantly correlated with expected value (0.596, sig = 0.012) but not with utility. this means that when sub-jects face higher costs prior to making a decision, there exists a corresponding higher expectation of gains, i.e., higher expected value.
کلیدواژه cost-benefit calculations ,decision process ,expected value ,mouselab ,quality of choice ,utility
آدرس tehran university of medical sciences, school of advanced technologies in medicine, department of neuroscience and addiction studies, iran, johns hopkins university, johns hopkins carey business school, usa, , iran, behsazan mellat co, iran, tehran university of medical sciences, ruzbeh hospital, division of memory and behavioral neurology, department of psychiatry, iran, tehran university of medical sciences, school of advanced technologies in medicine, school of medicine, research center for cognitive and behavioral studies, department of neuroscience and addiction studies, department of psychiatry, iran, tehran university of medical sciences, roozbeh hospital, school of advanced technologies in medicine, department of psychiatry, department of neuroscience and addiction studies, iran
پست الکترونیکی razaghie@sina.tums.ac.ir
 
     
   
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