Dharshan Kumaran

Summary

Affiliation: University College London
Country: UK

Publications

  1. doi request reprint Short-term memory and the human hippocampus
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 28:3837-8. 2008
  2. ncbi request reprint Which computational mechanisms operate in the hippocampus during novelty detection?
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
    Hippocampus 17:735-48. 2007
  3. pmc What representations and computations underpin the contribution of the hippocampus to generalization and inference?
    Dharshan Kumaran
    Institute of Cognitive Neuroscience, University College London London, UK
    Front Hum Neurosci 6:157. 2012
  4. doi request reprint Novelty signals: a window into hippocampal information processing
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Trends Cogn Sci 13:47-54. 2009
  5. pmc Tracking the emergence of conceptual knowledge during human decision making
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Neuron 63:889-901. 2009
  6. pmc Match mismatch processes underlie human hippocampal responses to associative novelty
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 27:8517-24. 2007
  7. pmc Impaired spatial and non-spatial configural learning in patients with hippocampal pathology
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Neuropsychologia 45:2699-711. 2007
  8. pmc An unexpected sequence of events: mismatch detection in the human hippocampus
    Dharshan Kumaran
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, London, United Kingdom
    PLoS Biol 4:e424. 2006
  9. ncbi request reprint The dynamics of hippocampal activation during encoding of overlapping sequences
    Dharshan Kumaran
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, United Kingdom
    Neuron 49:617-29. 2006
  10. ncbi request reprint The human hippocampus: cognitive maps or relational memory?
    Dharshan Kumaran
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 25:7254-9. 2005

Detail Information

Publications24

  1. doi request reprint Short-term memory and the human hippocampus
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 28:3837-8. 2008
  2. ncbi request reprint Which computational mechanisms operate in the hippocampus during novelty detection?
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom
    Hippocampus 17:735-48. 2007
    ....
  3. pmc What representations and computations underpin the contribution of the hippocampus to generalization and inference?
    Dharshan Kumaran
    Institute of Cognitive Neuroscience, University College London London, UK
    Front Hum Neurosci 6:157. 2012
    ....
  4. doi request reprint Novelty signals: a window into hippocampal information processing
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Trends Cogn Sci 13:47-54. 2009
    ..More generally, we suggest that a renewed emphasis on the information processing qualities of the human hippocampus offers the promise of a long awaited union between theoretical and empirical research across species...
  5. pmc Tracking the emergence of conceptual knowledge during human decision making
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Neuron 63:889-901. 2009
    ..Our study offers neurobiological insights into the remarkable capacity of humans to discover the conceptual structure of related experiences and use this knowledge to solve exacting decision problems...
  6. pmc Match mismatch processes underlie human hippocampal responses to associative novelty
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 27:8517-24. 2007
    ..More generally, the current study also offers insights into how the hippocampus automatically represents the spatiotemporal context of our experiences, a function that may relate to its role in episodic memory...
  7. pmc Impaired spatial and non-spatial configural learning in patients with hippocampal pathology
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Neuropsychologia 45:2699-711. 2007
    ....
  8. pmc An unexpected sequence of events: mismatch detection in the human hippocampus
    Dharshan Kumaran
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, London, United Kingdom
    PLoS Biol 4:e424. 2006
    ..The present study also offers broader insights into the nature of essential computations carried out by the hippocampus, which may also underpin its unique contribution to episodic memory...
  9. ncbi request reprint The dynamics of hippocampal activation during encoding of overlapping sequences
    Dharshan Kumaran
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, United Kingdom
    Neuron 49:617-29. 2006
    ....
  10. ncbi request reprint The human hippocampus: cognitive maps or relational memory?
    Dharshan Kumaran
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 25:7254-9. 2005
    ..Our results both advance our understanding of the nature of the hippocampal contribution to memory and provide insights into how social networks are instantiated at the neural level...
  11. pmc A genetically mediated bias in decision making driven by failure of amygdala control
    Jonathan P Roiser
    Institute of Cognitive Neuroscience, University College London, London WC1N 3AR, UK
    J Neurosci 29:5985-91. 2009
    ..These data suggest that genetically mediated differences in prefrontal-amygdala interactions underpin interindividual differences in economic decision making...
  12. pmc Patients with hippocampal amnesia cannot imagine new experiences
    Demis Hassabis
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, United Kingdom
    Proc Natl Acad Sci U S A 104:1726-31. 2007
    ..Given how closely imagined experiences match episodic memories, the absence of this function mediated by the hippocampus, may also fundamentally affect the ability to vividly re-experience the past...
  13. pmc Double dissociation between hippocampal and parahippocampal responses to object-background context and scene novelty
    Lorelei R Howard
    Research Department of Cognitive, Perceptual, and Brain Sciences, Division of Psychology and Language Sciences, Institute of Behavioural Neuroscience, University College London, London WC1H 0AP, United Kingdom
    J Neurosci 31:5253-61. 2011
    ....
  14. pmc Transitivity performance, relational hierarchy knowledge and awareness: results of an instructional framing manipulation
    Dharshan Kumaran
    Institute of Cognitive Neuroscience, University College London, 17 Queen Square, United Kingdom
    Hippocampus 23:1259-68. 2013
    ..Finally, our study motivates an experimental setting that ensures robust hierarchy learning across participants--therefore facilitating study of the neural mechanisms underlying the learning and representation of linear hierarchies...
  15. pmc Dissociation between dorsal and ventral posterior parietal cortical responses to incidental changes in natural scenes
    Lorelei R Howard
    Institute of Behavioural Neuroscience, Research Department of Cognitive, Perceptual and Brain Sciences, Division of Psychology and Language Sciences, University College London, London, United Kingdom
    PLoS ONE 8:e67988. 2013
    ..While the response of medial temporal lobe regions to topographical stimuli has been intensively studied, much less research has focused on the role of PPC and its functional connectivity with the medial temporal lobe...
  16. pmc Autobiographical memory in semantic dementia: a longitudinal fMRI study
    Eleanor A Maguire
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK
    Neuropsychologia 48:123-36. 2010
    ....
  17. pmc Using imagination to understand the neural basis of episodic memory
    Demis Hassabis
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London WC1N 3BG, United Kingdom
    J Neurosci 27:14365-74. 2007
    ..We suggest that additional brain regions are co-opted into this core network in a task-specific manner to support functions such as episodic memory that may have additional requirements...
  18. pmc The emergence and representation of knowledge about social and nonsocial hierarchies
    Dharshan Kumaran
    Institute of Cognitive Neuroscience, University College London, 17 Queen Square, WC1N 3AR, UK
    Neuron 76:653-66. 2012
    ..Our study implicates the amygdala in the emergence and representation of knowledge about social hierarchies and distinguishes the domain-general contribution of the hippocampus...
  19. pmc Decoding representations of scenes in the medial temporal lobes
    Heidi M Bonnici
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, 12 Queen Square, London, United Kingdom
    Hippocampus 22:1143-53. 2012
    ....
  20. pmc Multi-voxel pattern analysis in human hippocampal subfields
    Heidi M Bonnici
    Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London London, UK
    Front Hum Neurosci 6:290. 2012
    ..We suggest that MVPA in human hippocampal subfields may open up new opportunities to examine how different types of information are represented and processed at this fundamental level...
  21. doi request reprint The hippocampus and dopaminergic midbrain: old couple, new insights
    Dharshan Kumaran
    Wellcome Trust Centre for Neuroimaging, London, UK
    Neuron 60:197-200. 2008
    ..In this issue of Neuron, Shohamy and Wagner reveal how generalizations naturally emerge during associative learning through a partnership between putatively dopaminergic circuitry in the midbrain and the hippocampus...
  22. pmc Schema-driven facilitation of new hierarchy learning in the transitive inference paradigm
    Dharshan Kumaran
    Institute of Cognitive Neuroscience, University College London, London WC1N 3AR, UK
    Learn Mem 20:388-94. 2013
    ....
  23. pmc Frames, biases, and rational decision-making in the human brain
    Benedetto De Martino
    Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, 12 Queen Square, London WC1 3AR, UK
    Science 313:684-7. 2006
    ..This finding highlights the importance of incorporating emotional processes within models of human choice and suggests how the brain may modulate the effect of these biasing influences to approximate rationality...
  24. ncbi request reprint Impairment of specific episodic memory processes by sub-psychotic doses of ketamine: the effects of levels of processing at encoding and of the subsequent retrieval task
    Garry D Honey
    Department of Psychiatry, University of Cambridge, Addenbrooke s Hospital, P O Box 255, Hills Road, Cambridge, CB2 2QQ, UK
    Psychopharmacology (Berl) 181:445-57. 2005
    ..The precise nature of the impact of the N-methyl-D-aspartate antagonist, ketamine, upon human episodic memory, has yet to be elucidated fully...