Research Topics
Species | Gerhard JochamSummaryAffiliation: University of Oxford Country: UK Publications
| Collaborators |
Detail Information
Publications
A mechanism for value-guided choice based on the excitation-inhibition balance in prefrontal cortexGerhard Jocham
Oxford Centre for Functional MRI of the Brain, University of Oxford, John Radcliffe Hospital, Oxford, UK
Nat Neurosci 15:960-1. 2012..These data provide evidence for a neural competition mechanism in vmPFC that supports value-guided choice...
Dopamine-mediated reinforcement learning signals in the striatum and ventromedial prefrontal cortex underlie value-based choicesGerhard Jocham
Max Planck Institute for Neurological Research, Cognitive Neurology Research Group, D 50931 Cologne, Germany
J Neurosci 31:1606-13. 2011..These findings show that dopamine-dependent mechanisms enhance reinforcement learning signals in the striatum and sharpen representations of associative values in prefrontal cortex that are used to guide reinforcement-based decisions...
Dopamine DRD2 polymorphism alters reversal learning and associated neural activityGerhard Jocham
Cognitive Neurology Research Group, Max Planck Institute for Neurological Research, D 50931 Cologne, Germany
J Neurosci 29:3695-704. 2009..This, in turn, was accompanied by impaired recruitment of the ventral striatum and the right lOFC during reversals, which might explain the behavioral differences between the genetic groups...
Adaptive coding of action values in the human rostral cingulate zoneGerhard Jocham
Cognitive Neurology Research Group, Max Planck Institute for Neurological Research, D 50931 Cologne, Germany
J Neurosci 29:7489-96. 2009..Thus, both the window of trials over which reinforcement information is integrated and adjustment of action values in the RCZ covary with the stochastics of the environment...
How to perfect a chocolate soufflé and other important problemsTimothy E J Behrens
FMRIB Centre, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
Neuron 71:203-5. 2011..A new study reports brain responses consistent with such "hierarchical reinforcement learning."..
Neuropharmacology of performance monitoringGerhard Jocham
Max Planck Institute for Neurological Research, Cognitive Neurology Research Group, Gleueler Strasse 50, D 50931 Cologne, Germany
Neurosci Biobehav Rev 33:48-60. 2009..Here, we review the evidence for neurotransmitter effects on this function in humans. In this light, we critically discuss currently debated models of performance monitoring and potential alternatives...
