Dear All, The CEU Department of Cognitive Science and the Center for Cognitive Computation (CCC) invites you to the following talk. Speaker: Tarryn Balsdon (École normale supérieure) Title: Online confidence control of decision-making in dynamic sensory environments Abstract: Perceptual decisions come with a feeling of confidence that reflects decision accuracy. Rather than a post-decision reflection, we show separable EEG representations of confidence online, during decision-making. This online confidence could be used to control decision efficiency by guiding how we commit to decisions. In dynamic sensory environments, where the quality of the evidence changes over time, observers could use their confidence to down-weight low-quality sensory evidence or capitalise on high-quality evidence. We formulated an extension of sequential sampling models of decision-making in which confidence is used online to actively moderate the quality and quantity of evidence accumulated for decisions. The benefit of this model is that it can respond to dynamic changes in sensory evidence quality. We highlighted this feature by designing a dynamic sensory environment where evidence quality can be smoothly adapted within the timeframe of a single decision. Our model with confidence control offers a far superior description of human behaviour in this environment. Using multivariate decoding of electroencephalography (EEG), we uncovered EEG correlates of the model’s latent processes, and show stronger EEG-derived confidence control leads to faster, more accurate decisions. These results support a neurobiologically plausible framework featuring confidence as an active control mechanism for driving efficient behaviour. Chair: József Fiser Time: 4 PM, Monday, September 2, 2024 Venue: CEU Budapest Site (1051 Budapest, Nádor u. 15.) N15. room 101. Quantum Zoom: Meeting ID: 996 6407 5377<https://www.google.com/url?q=https://ceu-edu.zoom.us/j/99664075377?… Passcode: 511145 Please, be informed that video/photo recording might take place at the event and the edited version of the video material might be published to communicate or promote CEU PU's activities. Please, find our Privacy Notice here<https://www.ceu.edu/privacy>cy>. Best regards, Ildikó Varga Department Coordinator (Budapest) Department of Cognitive Science [cid:61adf32d-b1ae-48d2-977e-763a227e3fdc] H-1051 Budapest Nádor u. 15. FT room 404. tel: +36-1 327-3000 2941 http://www.ceu.edu<http://www.ceu.edu/> http://cognitivescience.ceu.edu<http://cognitivescience.ceu.edu/> ________________________________ From: Talks &lt;talks-bounces(a)cogsci.ceu.edu&gt; on behalf of Ildiko Zsoka Varga &lt;VargaI(a)ceu.edu&gt; Sent: Monday, August 26, 2024 1:17 PM To: &#39;talks(a)cogsci.ceu.edu (talks(a)cogsci.ceu.edu)&#39; &lt;talks(a)cogsci.ceu.edu&gt; Subject: [CEU Cogsci Talks] Departmental Colloquium - Tarryn Balsdon, Monday, Sept. 2. Budapest Dear All, The CEU Department of Cognitive Science and the Center for Cognitive Computation (CCC) invites you to the following talk. Speaker: Tarryn Balsdon (École normale supérieure) Title: Online confidence control of decision-making in dynamic sensory environments Abstract: Perceptual decisions come with a feeling of confidence that reflects decision accuracy. Rather than a post-decision reflection, we show separable EEG representations of confidence online, during decision-making. This online confidence could be used to control decision efficiency by guiding how we commit to decisions. In dynamic sensory environments, where the quality of the evidence changes over time, observers could use their confidence to down-weight low-quality sensory evidence or capitalise on high-quality evidence. We formulated an extension of sequential sampling models of decision-making in which confidence is used online to actively moderate the quality and quantity of evidence accumulated for decisions. The benefit of this model is that it can respond to dynamic changes in sensory evidence quality. We highlighted this feature by designing a dynamic sensory environment where evidence quality can be smoothly adapted within the timeframe of a single decision. Our model with confidence control offers a far superior description of human behaviour in this environment. Using multivariate decoding of electroencephalography (EEG), we uncovered EEG correlates of the model’s latent processes, and show stronger EEG-derived confidence control leads to faster, more accurate decisions. These results support a neurobiologically plausible framework featuring confidence as an active control mechanism for driving efficient behaviour. Chair: József Fiser Time: 4 PM, Monday, September 2, 2024 Venue: CEU Budapest Site (1051 Budapest, Nádor u. 15.) N15. room 101. Quantum Zoom: Meeting ID: 996 6407 5377<https://www.google.com/url?q=https://ceu-edu.zoom.us/j/99664075377?… Passcode: 511145 Please, be informed that video/photo recording might take place at the event and the edited version of the video material might be published to communicate or promote CEU PU's activities. Please, find our Privacy Notice here<https://www.ceu.edu/privacy>cy>. Best regards, Ildikó Varga Department Coordinator (Budapest) Department of Cognitive Science [cid:58751420-84f1-42ff-9f09-59b22e19da81] H-1051 Budapest Nádor u. 15. FT room 404. tel: +36-1 327-3000 2941 http://www.ceu.edu<http://www.ceu.edu/> http://cognitivescience.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