Research Topics
| Jon S SimonsSummaryAffiliation: University College London Country: UK Publications
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Detail Information
Publications
Failing to get the gist: reduced false recognition of semantic associates in semantic dementiaJon S Simons
Institute of Cognitive Neuroscience, University College London, London, United Kingdom
Neuropsychology 19:353-61. 2005....- Anterior prefrontal cortex and the recollection of contextual informationJon S Simons
Institute of Cognitive Neuroscience, Department of Psychology, University College London, 17 Queen Square, London WC1N 3AR, UK
Neuropsychologia 43:1774-83. 2005..These results suggest different roles for lateral and medial anterior prefrontal cortex in recollection... - Distinct roles for lateral and medial anterior prefrontal cortex in contextual recollectionJon S Simons
Institute of Cognitive Neuroscience and Department of Pyschology, University College London, United Kingdom
J Neurophysiol 94:813-20. 2005..Lateral regions seem to be more involved in the early retrieval specification stages of recollection, with medial regions contributing to later stages (e.g., monitoring and verification)... - Specific- and partial-source memory: effects of agingJon S Simons
Department of Psychology, Harvard University, Cambridge, MA, USA
Psychol Aging 19:689-94. 2004..When the groups were matched on partial-source performance, no disproportionate specific-source impairment was seen. The results suggest that aging does not differentially affect specific- versus partial-source memory... - Prefrontal and medial temporal lobe interactions in long-term memoryJon S Simons
Institute of Cognitive Neuroscience, University College London, Alexandra House, 17 Queen Square, London WC1N 3AR, UK
Nat Rev Neurosci 4:637-48. 2003 - Neural mechanisms of visual object priming: evidence for perceptual and semantic distinctions in fusiform cortexJon S Simons
Department of Psychology, Harvard University, Cambridge, MA 02138, USA
Neuroimage 19:613-26. 2003..The results are consistent with the view that the right fusiform plays a greater role in processing specific visual form information about objects, whereas the left fusiform is also involved in lexical/semantic processing... - Recollection-based memory in frontotemporal dementia: implications for theories of long-term memoryJon S Simons
MRC Cognition and Brain Sciences Unit, Cambridge, UK
Brain 125:2523-36. 2002..These results provide further compelling evidence in favour of the multiple input model of long-term memory and highlight the role of frontal lobe systems in recollection-based memory... 
The Scale of Functional Specialization within Human Prefrontal CortexSam J Gilbert
Institute of Cognitive Neuroscience and Division of Psychology and Language Sciences, University College London, London WC1N 3AR, United Kingdom
J Neurosci 30:1233-7. 2010..Furthermore, these findings suggest that divergent results from previous studies may reflect the recruitment of functionally distinct regions and that "reverse inference" should be undertaken with caution...- Discriminating imagined from perceived information engages brain areas implicated in schizophreniaJon S Simons
Institute of Cognitive Neuroscience and Department of Psychology, University College London, UK
Neuroimage 32:696-703. 2006..These results indicate a possible link between the brain areas implicated in schizophrenia and the regions supporting the ability to discriminate between perceived and imagined information... - Distinct roles for lateral and medial rostral prefrontal cortex in source monitoring of perceived and imagined eventsMartha S Turner
Institute of Cognitive Neuroscience and Department of Psychology, University College London, 17 Queen Square, London WC1N 3AR, UK
Neuropsychologia 46:1442-53. 2008.... - Separable forms of reality monitoring supported by anterior prefrontal cortexJon S Simons
Department of Experimental Psychology, University of Cambridge, Downing Street, Cambridge, UK
J Cogn Neurosci 20:447-57. 2008..The observation of significant correlations between reduced medial anterior prefrontal signal and scores on such measures corroborates these theoretical links... - Performance-related activity in medial rostral prefrontal cortex (area 10) during low-demand tasksSam J Gilbert
Institute of Cognitive Neuroscience, University, College London, London, England
J Exp Psychol Hum Percept Perform 32:45-58. 2006..Thus, at least under certain circumstances, medial rostral PFC appears to support attention toward the external environment, facilitating performance in situations that do not require extensive processing of experimental stimuli... - Functional specialization within rostral prefrontal cortex (area 10): a meta-analysisSam J Gilbert
University College London, UK
J Cogn Neurosci 18:932-48. 2006..These results point to considerable functional segregation within rostral prefrontal cortex... - Comment on "Wandering minds: the default network and stimulus-independent thought"Sam J Gilbert
Institute of Cognitive Neuroscience and Department of Psychology, University College London, London, UK
Science 317:43; author reply 43. 2007..g., watchfulness). Consideration of both possibilities is required to resolve this ambiguity... - Differential components of prospective memory? Evidence from fMRIJon S Simons
Institute of Cognitive Neuroscience and Department of Psychology, University College London, UK
Neuropsychologia 44:1388-97. 2006..Together, the results suggest that whilst cue identification and intention retrieval may be behaviorally separable, they share at least some common neural basis in anterior prefrontal cortex... - Dissociation between memory accuracy and memory confidence following bilateral parietal lesionsJon S Simons
Department of Experimental Psychology, University of Cambridge, Cambridge, UK
Cereb Cortex 20:479-85. 2010.... - Is the parietal lobe necessary for recollection in humans?Jon S Simons
Brain Mapping Unit, University of Cambridge, Cambridge, UK
Neuropsychologia 46:1185-91. 2008..Thus, although the processes subserved by the human parietal lobe appear to be recruited to support memory function, they are not a necessary requirement for accurate remembering to occur... - Feeling-of-knowing in episodic memory: an event-related fMRI studyAnat Maril
Department of Psychology, Harvard University, Cambridge, MA 02138, USA
Neuroimage 18:827-36. 2003..These results provide evidence that the phenomenology of graded recall is represented neurally in frontal and parietal cortices, but that activation at encoding may not precipitate the different levels of recall experience... - Distinct regions of medial rostral prefrontal cortex supporting social and nonsocial functionsSam J Gilbert
Institute of Cognitive Neuroscience, Department of Psychology, University College London, London, UK
Soc Cogn Affect Neurosci 2:217-26. 2007..These results generalized from one task to the other, suggesting a new axis of functional organization within MPFC... - Graded recall success: an event-related fMRI comparison of tip of the tongue and feeling of knowingAnat Maril
Department of Psychology, Harvard University, USA
Neuroimage 24:1130-8. 2005..The results are interpreted in the light of theories of the role of prefrontal cortex in recall and cognitive conflict... - Regional brain activations differ for semantic features but not categoriesAndy C H Lee
MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge, CB2 2EF
Neuroreport 13:1497-501. 2002..These findings support a primarily attribute-based neural organisation of semantic knowledge... - Differential functions of lateral and medial rostral prefrontal cortex (area 10) revealed by brain-behavior associationsSam J Gilbert
Institute of Cognitive Neuroscience and Department of Psychology, University College London, London, UK
Cereb Cortex 16:1783-9. 2006..Medial activations were associated with contrasts where RTs were, if anything, faster in experimental than control conditions. These findings place important constraints on theories of rostral PFC functions... - Time-travelling and mind-travelling: examining individual differences in self-projectionJayne Cullen
University of Cambridge Medical School, Cambridge, UK
Psychiatr Danub 23:S182-6. 2011..The significance of these findings is discussed with respect to the suggestion that memory and theory of mind rely on a common set of processes... - Long-term memory for the terrorist attack of September 11: flashbulb memories, event memories, and the factors that influence their retentionWilliam Hirst
Department of Psychology, New School for Social Research, New York, NY 10011, USA
J Exp Psychol Gen 138:161-76. 2009..The results are discussed in terms of community memory practices... - 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 taskGarry 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 observed effects are compatible with memory deficits seen in schizophrenia and thus provide some support for the ketamine model of the disease... - What is the parietal lobe contribution to human memory?Jon S Simons
Neuropsychologia 46:1739-42. 2008 - Parietal contributions to recollection: electrophysiological evidence from aging and patients with parietal lesionsBrandon A Ally
Center for Translational Cognitive Neuroscience, Geriatric Research Education Clinical Center, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA 01730, USA
Neuropsychologia 46:1800-12. 2008..From these results, the authors speculate that the parietal old/new effect may be the neural correlate of an individual's subjective recollective experience... - fMRI evidence for separable and lateralized prefrontal memory monitoring processesIan G Dobbins
Duke University, USA
J Cogn Neurosci 16:908-20. 2004..These data suggest a role for right PFC in the close monitoring of the familiarity of objects, which becomes critical when contextual recollection is ineffective in satisfying a memory demand... - Memory for the September 11, 2001, terrorist attacks one year later in patients with Alzheimer's disease, patients with mild cognitive impairment, and healthy older adultsAndrew E Budson
Geriatric Research Education Clinical Center, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA 01730, USA
Cortex 43:875-88. 2007..Lastly, although memory distortions were common among all groups, they were greatest in the patients with AD... - Memory and emotions for the september 11, 2001, terrorist attacks in patients with Alzheimer's disease, patients with mild cognitive impairment, and healthy older adultsAndrew E Budson
Division of Cognitive and Behavioral Neurology, Department of Neurology, Brigham and Women s Hospital, Boston, MA 02115, USA
Neuropsychology 18:315-27. 2004..Last, distortions of memory for personal information were frequent for all participants but were more common in patients with AD...