RT Journal Article SR Electronic T1 Corticostriatal Interactions during Learning, Memory Processing, and Decision Making JF The Journal of Neuroscience JO J. Neurosci. FD Society for Neuroscience SP 12831 OP 12838 DO 10.1523/JNEUROSCI.3177-09.2009 VO 29 IS 41 A1 Cyriel M. A. Pennartz A1 Joshua D. Berke A1 Ann M. Graybiel A1 Rutsuko Ito A1 Carien S. Lansink A1 Matthijs van der Meer A1 A. David Redish A1 Kyle S. Smith A1 Pieter Voorn YR 2009 UL http://www.jneurosci.org/content/29/41/12831.abstract AB This mini-symposium aims to integrate recent insights from anatomy, behavior, and neurophysiology, highlighting the anatomical organization, behavioral significance, and information-processing mechanisms of corticostriatal interactions. In this summary of topics, which is not meant to provide a comprehensive survey, we will first review the anatomy of corticostriatal circuits, comparing different ways by which “loops” of cortical–basal ganglia circuits communicate. Next, we will address the causal importance and systems-neurophysiological mechanisms of corticostriatal interactions for memory, emphasizing the communication between hippocampus and ventral striatum during contextual conditioning. Furthermore, ensemble recording techniques have been applied to compare information processing in the dorsal and ventral striatum to predictions from reinforcement learning theory. We will next discuss how neural activity develops in corticostriatal areas when habits are learned. Finally, we will evaluate the role of GABAergic interneurons in dynamically transforming cortical inputs into striatal output during learning and decision making.