Tisztelt Kollégák, 2016. december 7-én szerdán du. 5 órakor Hangya Balázs (MTA Kísérleti Orvostudományi Kutatóintézet) előadást tart a CEU Kognitívtudományi Tanszékén "Signatures of a Statistical Computation in the Human Sense of Confidence" címmel. Az előadás helyszíne: Okóber 6-a utca 7, 101-es terem (1. emelet), további részletek a levél alján. Minden érdeklődőt szeretettel várunk. Az előadó néhány publikációja a közelmúltból: Hangya B, Sanders JI, Kepecs A (2016) A mathematical framework for statistical decision confidence. Neural Comput 28:1840-58. Sanders JI, Hangya B, Kepecs A (2016) Signatures of a statistical computation in the human sense of confidence. Neuron 90:499-506. Hangya B, Ranade SP, Lorenc M, Kepecs A (2015) Central cholinergic neurons are rapidly recruited by reinforcement feedback. Cell 162:1155-68. Hangya B, Kepecs A. Vision: how to train visual cortex to predict reward time. Curr Biol 25:R490-2. Hangya B, Pi HJ, Kvitsiani D, Ranade SP, Kepecs A (2014) From circuit motifs to computations: mapping the behavioral repertoire of cortical interneurons. Curr Opin Neurobiol 26:117-24. Pi HJ, Hangya B, Kvitsiani D, Sanders JI, Huang ZJ, Kepecs A (2013) Cortical interneurons that specialize in disinhibitory control. Nature 503:521-4. Kvitsiani D, Ranade S, Hangya B, Taniguchi H, Huang JZ, Kepecs A (2013) Distinct behavioural and network correlates of two interneuron types in prefrontal cortex. Nature 498:363-6. Üdvözlettel, Lengyel Máté -- Computational and Biological Learning Lab Cambridge University Engineering Department Trumpington Street, Cambridge CB2 1PZ, UK tel: +44 (0)1223 748 532, fax: +44 (0)1223 332 662 Department of Cognitive Science Central European University Oktober 6 street 7, Budapest H-1051, Hungary tel: +36 1 887 5142 , fax: +36 1 887 5010 email: m.lengyel(a)eng.cam.ac.uk web: www.eng.cam.ac.uk/~m.lengyel *** The CEU Department of Cognitive Science cordially invites you to a talk (as part of its Departmental Colloquium series) by Balazs Hangya (MTA, Institute of Experimental Medicine) Signatures of a Statistical Computation in the Human Sense of Confidence 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. Date: Wednesday, December 7, 2016 – 17:00-18:30 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-…