Author
Trinity College DublinORCID 0000-0002-0463-8904Unclaimed ORCID profile · follow to get notified of new preprints
Mutual co-authors in cluster
8 papers
Recent·Most cited
Eike Kofi Buabang, Steph F Suddell, John P Grogan, Alice Cox, Nina St. Martin, Kelly Rose Donegan, Parnian Rafei, Redmond G O’Connell, Claire M. Gillan
This study uses EEG to investigate covert habit activation and control in humans, finding that the lateralized readiness potential tracks habitual responses and frontal midline theta power scales with habit override.
bioRxiv · Nov 12, 2025 · PreprintNeuroscience
John P Grogan, Luc Vermeylen, S.L. Mannion, C. McCabe, Daria Monakhovych, Kobe Desender, Redmond G O’Connell
The paper develops a model showing that choice and confidence reports share a single evidence accumulation process with separate boundaries.
bioRxiv · Jun 5, 2025 · PreprintNeuroscience
John P Grogan, Matthias Raemaekers, Maaike M.H. van Swieten, Alexander L. Green, Martin J. Gillies, Sanjay Manohar
This study shows that muscarinic receptors enhance motivation-related preparatory neural activity in humans, as evidenced by changes in reaction times and vigour during an incentivized task.
eLife · Nov 20, 2024Peer-reviewedNeuroscience
John P Grogan, Wouter Rys, Simon P. Kelly, Redmond G O’Connell
The paper examines how pre- and post-choice neural signals relate to confidence in perceptual decisions, finding that post-choice evidence accumulation continues and is influenced by confidence levels.
Imaging Neuroscience · Jul 19, 2023Peer-reviewedNeuroscience
John P Grogan, Tim Sandhu, M.T. Hu, Sanjay Manohar
This study investigates how dopamine affects two types of motivation in Parkinson's disease patients, finding that dopamine enhances contingent reward motivation but reduces reward-driven vigour.
eLife · Oct 1, 2020Peer-reviewedNeuroscience
Hanna Isotalus, Will J. Carr, George G. Averill, Oliver Radtke, James Selwood, Rachel Williams, Elizabeth Ford, Liz McCullagh, James McErlane, Cian O’Donnell, Claire F. Durant, Ullrich Bartsch, Matthew W. Jones, Carlos Muñoz‐Neira, Alfie R. Wearn, , Elizabeth Jane Coulthard
This study investigates how dopamine affects memory consolidation during sleep, finding that it enhances forgetting of weak memories and increases slow wave sleep duration.
bioRxiv · May 23, 2020 · PreprintNeuroscience
John P Grogan, Lisa E. Knight, Laura Smith, Nerea Irigoras Izagirre, Alexandra Howat, Brogan Elizabeth Knight, Anastasia Bickerton, Hanna Isotalus, Elizabeth Jane Coulthard
This study investigates how Parkinson’s disease and dopamine affect working memory by testing digit span tasks in patients and healthy controls with and without medication.
Psychopharmacology · Oct 12, 2018Peer-reviewedNeuroscience
John P Grogan, Hanna Isotalus, Alexandra Howat, Nerea Irigoras Izagirre, Knight L.E., Elizabeth Jane Coulthard
This study investigates levodopa's effect on choice performance in reinforcement learning, finding no impact on accuracy or expression of reinforced values.
bioRxiv · Oct 4, 2018 · PreprintNeuroscience