{"pk":24717,"title":"Assessing model-based and model-free Pavlovian-instrumental transfer using a novel two-stage paradigm","subtitle":null,"abstract":"Computational reinforcement learning models suggest that learning involves both model-free (MF) reward prediction errors and model-based (MB) state prediction errors, observed in instrumental and Pavlovian learning (Daw et al., 2011; Schad et al., 2020). Pavlovian-instrumental transfer (PIT) demonstrates Pavlovian values impacting instrumental responses. Single-lever PIT paradigms, often considered as MF, show correlations with reduced MB instrumental control (Garbusow et al., 2014; Review Cartoni et al., 2016; Sebold et al., 2016). To explore whether single-lever PIT effects are exclusively MF or also MB, we created a novel two-stage paradigm assessing MF and MB control  trial by trial. Computational dual-control model simulations revealed a two-way interaction for MF and a three-way interaction for MB PIT. Thus far, Bayesian sequential analysis using Savage-Dickey density ratios (N=10) suggests the existence of MF (BF=3.93) and MB (BF=1.26) influences on PIT, aligning with Pavlovian learning and emphasizing the role of MB computations in single-lever PIT tasks.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"Psychology; Learning; Bayesian modeling; Computational Modeling"}],"section":"Abstracts","is_remote":true,"remote_url":"https://escholarship.org/uc/item/44t6s85z","frozenauthors":[{"first_name":"Laura Alexandra","middle_name":"","last_name":"Wirth","name_suffix":"","institution":"University of Potsdam","department":""},{"first_name":"Daniel","middle_name":"J.","last_name":"Schad","name_suffix":"","institution":"University of Potsdam","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2024-01-01T19:00:00+01:00","render_galley":{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/24717/galley/20936/download/"},"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/24717/galley/14315/download/"},{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/24717/galley/18167/download/"},{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/24717/galley/20936/download/"}]}