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-…