From: Gyorgyne Finta Sent: Thursday, December 01, 2016 12:09 PM To: Gyorgyne Finta <Szabor(a)ceu.edu> Subject: CogSci CEU Departmental Colloquium: December 7, Wednesday: Balazs Hangya, MTA: Signatures of a Statistical Computation in the Human Sense of Confidence The CEU Department of Cognitive Science cordially invites you to its talk as part of the Departmental Colloquium series by Balazs Hangya, MTA, Institute of Experimental Medicine Date: Wednesday, December 7, 2016 - 17:00-18:30 Host: Mate Lengyel Title: Signatures of a Statistical Computation in the Human Sense of Confidence Abstract: Human confidence judgments are thought to originate from metacognitive processes that provide a subjective assessment about one's beliefs. Alternatively, confidence is framed in mathematics as an objective statistical quantity: the probability that a chosen hypothesis is correct. Despite similar terminology, it remains unclear whether the subjective feeling of confidence is related to the objective, statistical computation of confidence. To address this, we collected confidence reports from humans performing perceptual and knowledge-based psychometric decision tasks. We observed two counterintuitive patterns relating confidence to choice and evidence: apparent overconfidence in choices based on uninformative evidence, and decreasing confidence with increasing evidence strength for erroneous choices. We show that these patterns lawfully arise from statistical confidence, and therefore occur even for perfectly calibrated confidence measures. Furthermore, statistical confidence quantitatively accounted for human confidence in our tasks without necessitating heuristic operations. Accordingly, we suggest that the human feeling of confidence originates from a mental computation of statistical confidence. Location: Department of Cognitive Science, CEU, Oktober 6 street 7, room 101. See more at: https://cognitivescience.ceu.edu/events/2016-12-07/departmental-colloquium-… We are looking forward to see you there! Cognitive Science Events at CEU: http://cognitivescience.ceu.edu/events Györgyné Finta (Réka) Department Coordinator ~~~~~~~~~~~~~~~~~~~~~~~~ Central European University Department of Cognitive Science H-1051 Budapest Oktober 6 utca 7. tel: (36-1) 887-5138 fax: (36-1) 887-5010 http://www.ceu.edu http://cognitivescience.ceu.edu ______________________________________________ Subscribe by sending an empty mail to talks-subscribe(a)cogsci.ceu.edu Unsubscribe by sending an empty mail to talks-unsubscribe(a)cogsci.ceu.edu