[koglist] [CEU Cogsci Talks] CogSci CEU Departmental Colloquium: January 22. Wednesday: Christopher Summerfield (Oxford University) - Adaptive gain control during human decision-making

The CEU Department of Cognitive Science cordially invites you to a talk (as part of its Departmental Colloquium series) by Christopher Summerfield Oxford University Date: Wednesday, January 22, 2014 - 17:00 - 18:30 Location: Department of Cognitive Science, CEU, Frankel Leó út 30-34., Room G15 "Adaptive gain control during human decision-making" The gain of neural responding adapts to background levels of stimulation. Adaptive gain control has been extensively studied in sensory systems, but overlooked in decision-theoretic models. Here, we describe evidence for rapid gain control during a categorisation task in which requires observers to average information occurring a rapid stream. The impact that each sample wielded over choices depended on how surprising their associated decision information was, given the statistics of stimulation, with consistent or expected samples carrying more weight. This bias was visible in the encoding of decision information in pupillometric and electroencephalographic signals. We account for these data with a new serial sampling model in which the gain of information processing adapts to ensure that expected information is more diagnostic of behaviour. We're looking forward to see you there (Frankel Leo u. 30-34) ! Cognitive Science Events at CEU: http://cognitivescience.ceu.hu/events _______________________________________________ Subscribe by sending an empty mail to seminars-subscribe(a)cdc.ceu.hu Unsubscribe by sending an empty mail to seminars-unsubscribe(a)cdc.ceu.hu