J Duncan

Summary

Affiliation: University of Cambridge
Country: UK

Publications

  1. pmc The relationship between executive functions and fluid intelligence in Parkinson's disease
    M Roca
    Institute of Cognitive Neurology INECO, Buenos Aires, Argentina
    Psychol Med 42:2445-52. 2012
  2. pmc Executive function and fluid intelligence after frontal lobe lesions
    Maria Roca
    Institute of Cognitive Neurology INECO, Buenos Aires, Argentina
    Brain 133:234-47. 2010
  3. pmc The structure of cognition: attentional episodes in mind and brain
    John Duncan
    MRC Cognition and Brain Sciences Unit, Cambridge, CB2 7EF UK Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, UK Electronic address
    Neuron 80:35-50. 2013
  4. pmc Intelligence and executive functions in frontotemporal dementia
    Maria Roca
    Institute of Cognitive Neurology, Buenos Aires, Argentina
    Neuropsychologia 51:725-30. 2013
  5. pmc Task rules, working memory, and fluid intelligence
    John Duncan
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge, CB2 7EF, UK
    Psychon Bull Rev 19:864-70. 2012
  6. ncbi request reprint Goal neglect and Spearman's g: competing parts of a complex task
    John Duncan
    Medical Research Council Cognition and Brain Sciences Unit, Chaucer Rd, Cambridge CB2 7EF, England
    J Exp Psychol Gen 137:131-48. 2008
  7. ncbi request reprint EPS Mid-Career Award 2004: brain mechanisms of attention
    John Duncan
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Rd, Cambridge, CB2 2EF, UK
    Q J Exp Psychol (Hove) 59:2-27. 2006
  8. ncbi request reprint Frontal lobe function and general intelligence: why it matters
    John Duncan
    Cortex 41:215-7. 2005
  9. ncbi request reprint The multiple-demand (MD) system of the primate brain: mental programs for intelligent behaviour
    John Duncan
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 7EF, UK
    Trends Cogn Sci 14:172-9. 2010
  10. ncbi request reprint A neural basis for general intelligence
    J Duncan
    Medical Research Council Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK
    Science 289:457-60. 2000

Collaborators

Detail Information

Publications45

  1. pmc The relationship between executive functions and fluid intelligence in Parkinson's disease
    M Roca
    Institute of Cognitive Neurology INECO, Buenos Aires, Argentina
    Psychol Med 42:2445-52. 2012
    ..As frontal dysfunction is the most frequent cognitive deficit observed in early Parkinson's disease (PD), the present study aimed to determine the role of fluid intelligence in such deficits...
  2. pmc Executive function and fluid intelligence after frontal lobe lesions
    Maria Roca
    Institute of Cognitive Neurology INECO, Buenos Aires, Argentina
    Brain 133:234-47. 2010
    ..Understanding of frontal lobe deficits may be clarified by separating reduced fluid intelligence, important in most or all tasks, from other more specific impairments and their associated regions of damage...
  3. pmc The structure of cognition: attentional episodes in mind and brain
    John Duncan
    MRC Cognition and Brain Sciences Unit, Cambridge, CB2 7EF UK Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, UK Electronic address
    Neuron 80:35-50. 2013
    ..Like the innate releasing mechanism of ethology, I suggest that construction of the attentional episode provides a core organizational principle for complex, adaptive cognition. ..
  4. pmc Intelligence and executive functions in frontotemporal dementia
    Maria Roca
    Institute of Cognitive Neurology, Buenos Aires, Argentina
    Neuropsychologia 51:725-30. 2013
    ..The results suggest a relatively selective cognitive deficit at mild stages of the disease, followed by more widespread cognitive decline well predicted by g...
  5. pmc Task rules, working memory, and fluid intelligence
    John Duncan
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge, CB2 7EF, UK
    Psychon Bull Rev 19:864-70. 2012
    ..Fluid intelligence is linked closely to the efficiency of constructing such programs, especially when behavior is complex and novel...
  6. ncbi request reprint Goal neglect and Spearman's g: competing parts of a complex task
    John Duncan
    Medical Research Council Cognition and Brain Sciences Unit, Chaucer Rd, Cambridge CB2 7EF, England
    J Exp Psychol Gen 137:131-48. 2008
    ..As this model increases in complexity, different task components compete for representation, and vulnerable components may be lost. Construction of effective task models is closely linked to g...
  7. ncbi request reprint EPS Mid-Career Award 2004: brain mechanisms of attention
    John Duncan
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Rd, Cambridge, CB2 2EF, UK
    Q J Exp Psychol (Hove) 59:2-27. 2006
    ..More generally, I suggest that biased competition is characteristic of many different cognitive domains and brain systems. Coherent "attention" develops as different systems converge to work on related cognitive content...
  8. ncbi request reprint Frontal lobe function and general intelligence: why it matters
    John Duncan
    Cortex 41:215-7. 2005
  9. ncbi request reprint The multiple-demand (MD) system of the primate brain: mental programs for intelligent behaviour
    John Duncan
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 7EF, UK
    Trends Cogn Sci 14:172-9. 2010
    ..Resembling the structured problem-solving of symbolic artificial intelligence, the mental programs of MD cortex appear central to intelligent thought and action...
  10. ncbi request reprint A neural basis for general intelligence
    J Duncan
    Medical Research Council Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK
    Science 289:457-60. 2000
    ..The results suggest that "general intelligence" derives from a specific frontal system important in the control of diverse forms of behavior...
  11. ncbi request reprint Systematic analysis of deficits in visual attention
    J Duncan
    Medical Research Council Cognition and Brain Sciences Unit, Cambridge, United Kingdom
    J Exp Psychol Gen 128:450-78. 1999
    ..The results show how differentiation of attentional impairments can be informed by a theory of normal function...
  12. ncbi request reprint Attentional functions of parietal and frontal cortex
    Polly V Peers
    MRC Cognition and Brain Sciences Unit, Cambridge, UK
    Cereb Cortex 15:1469-84. 2005
    ..We suggest that attentional weights reflect competition between broadly distributed object representations. Parietal and frontal mechanisms work together, both in weighting by location and weighting by task context...
  13. ncbi request reprint Selective representation of task-relevant objects and locations in the monkey prefrontal cortex
    Stefan Everling
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK
    Eur J Neurosci 23:2197-214. 2006
    ..Together, these results suggest a highly programmable system, with responses strongly determined by the rules and requirements of the task performed...
  14. ncbi request reprint Intelligence and the frontal lobe: the organization of goal-directed behavior
    J Duncan
    MRC Applied Psychology Unit, Cambridge, United Kingdom
    Cogn Psychol 30:257-303. 1996
    ..A frontal process of constraint or requirement activation is fundamental to Spearman's g...
  15. ncbi request reprint The role of spatial configuration in tests of working memory explored with functional neuroimaging
    D Bor
    MRC Cognition and Brain Sciences Unit, Cambridge, UK
    Scand J Psychol 42:217-24. 2001
    ....
  16. ncbi request reprint The effects of time-on-task and concurrent cognitive load on normal visuospatial bias
    Christopher M Dodds
    UK Medical Research Council Cognition and Brain Sciences Unit, Cambridge, United Kingdom
    Neuropsychology 22:545-52. 2008
    ..While the secondary tasks influenced overall visual performance, there was no discernable effect on bias...
  17. ncbi request reprint Prefrontal cortical function and anxiety: controlling attention to threat-related stimuli
    Sonia Bishop
    Medical Research Council Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK
    Nat Neurosci 7:184-8. 2004
    ..Our results suggest distinct roles for rostral ACC and lateral PFC in governing the processing of task-irrelevant, threat-related stimuli, and indicate reduced recruitment of this circuitry in anxiety...
  18. ncbi request reprint Target detection by opponent coding in monkey prefrontal cortex
    Makoto Kusunoki
    MRC Cognition and Brain Sciences Unit, Cambridge CB2 7EF, UK
    J Cogn Neurosci 22:751-60. 2010
    ..Task-specific organization into opponent cell groups may be a general feature of prefrontal decision making...
  19. pmc Converging levels of analysis in the cognitive neuroscience of visual attention
    J Duncan
    MRC Cognition and Brain Sciences Unit, Cambridge, UK
    Philos Trans R Soc Lond B Biol Sci 353:1307-17. 1998
    ..Together, the concepts of competition, priming and integration allow a unified theoretical approach to findings from behavioural to single neuron levels...
  20. ncbi request reprint Competitive brain activity in visual attention
    J Duncan
    MRC Applied Psychology Unit, 15 Chaucer Road, Cambridge, CB2 2EF, UK
    Curr Opin Neurobiol 7:255-61. 1997
    ..In many cases, no unitary brain system may be responsible for unitary cognitive events such as attention. Such events may emerge as distinct systems converge to work on common cognitive problems...
  21. ncbi request reprint Objects and attributes in divided attention: surface and boundary systems
    J Duncan
    MRC Applied Psychology Unit, Cambridge, England
    Percept Psychophys 58:1076-84. 1996
    ..A partial exception is color: For reasons that are unclear, color escapes two-object interference except from other, concurrent surface discriminations...
  22. pmc The target selective neural response--similarity, ambiguity, and learning effects
    Adam Hampshire
    MRC Cognition and Brain Sciences Unit, Cambridge, Cambridgeshire, United Kingdom
    PLoS ONE 3:e2520. 2008
    ....
  23. pmc Hierarchical coding for sequential task events in the monkey prefrontal cortex
    Natasha Sigala
    Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, United Kingdom
    Proc Natl Acad Sci U S A 105:11969-74. 2008
    ..By orthogonal coding, the frontal lobe may control transitions between the discrete steps of a mental program; by correlated coding within each step, similar operations may be applied to different stimulus content...
  24. ncbi request reprint Discrete object representation, attention switching, and task difficulty in the parietal lobe
    Rhodri Cusack
    MRC Cognition and Brain Sciences Unit, Cambridge, UK
    J Cogn Neurosci 22:32-47. 2010
    ..A dissociation was also seen between selectivity for object load across tasks in the inferior IPS and feature or object-related memory load in the superior IPS...
  25. ncbi request reprint Attentional modulation of stimulus representation in human fronto-parietal cortex
    RUSSELL THOMPSON
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 7EF, UK
    Neuroimage 48:436-48. 2009
    ..Further comparisons suggested that the differences between attended changes and stimulus repetitions carried information about specific stimulus values, and did not simply reflect a generic response to attended changes...
  26. pmc The role of the right inferior frontal gyrus: inhibition and attentional control
    Adam Hampshire
    Medical Research Council Cognition and Brain Sciences Unit, Cambridge, UK
    Neuroimage 50:1313-9. 2010
    ..Our results reveal that the RIFG is recruited when important cues are detected, regardless of whether that detection is followed by the inhibition of a motor response, the generation of a motor response, or no external response at all...
  27. pmc Fluid intelligence loss linked to restricted regions of damage within frontal and parietal cortex
    Alexandra Woolgar
    Medical Research Council Cognition and Brain Sciences Unit, Cambridge CB2 7EF, United Kingdom
    Proc Natl Acad Sci U S A 107:14899-902. 2010
    ..posterior) cannot show the neural underpinnings of fluid intelligence tests. Instead, deficits reflect the extent of damage to a restricted but complex brain circuit comprising specific regions within both frontal and posterior cortex...
  28. pmc Selective tuning of the right inferior frontal gyrus during target detection
    Adam Hampshire
    Cambridge University, Cambridge, England
    Cogn Affect Behav Neurosci 9:103-12. 2009
    ..These findings support the hypothesis that the right IFG responds selectively to those items that are of the most relevance to the currently intended task schema...
  29. pmc COMT val158met genotype affects recruitment of neural mechanisms supporting fluid intelligence
    Sonia J Bishop
    Behavioural and Clinical Neuroscience Institute, University of Cambridge, Downing Street, Cambridge CB2 3EB, UK
    Cereb Cortex 18:2132-40. 2008
    ..The behavioral effects of val allele load differed inside and outside the scanner, consistent with contextual modulation of the relation between COMT val(158)met genotype and g(f) task performance...
  30. ncbi request reprint Selective tuning of the blood oxygenation level-dependent response during simple target detection dissociates human frontoparietal subregions
    Adam Hampshire
    MRC Cognition and Brain Sciences Unit, Cambridge, Cambridgeshire CB2 7EF, United Kingdom
    J Neurosci 27:6219-23. 2007
    ..The results show different degrees of target selectivity across different regions of the frontoparietal network...
  31. ncbi request reprint Frontoparietal activity with minimal decision and control
    Nicholas Hon
    Medical Research Council Cognition and Brain Sciences Unit, Cambridge CB2 2EF, United Kingdom
    J Neurosci 26:9805-9. 2006
    ..Even without behavior to control, these classical "control" regions are active in simple update of attended information...
  32. ncbi request reprint Filtering of neural signals by focused attention in the monkey prefrontal cortex
    Stefan Everling
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK
    Nat Neurosci 5:671-6. 2002
    ..The results show that, in prefrontal cortex, filtering of ignored locations is strong, early and spatially global. Such filtering may be important in blindness to unattended signals--a conspicuous aspect of human selective attention...
  33. ncbi request reprint Encoding strategies dissociate prefrontal activity from working memory demand
    Daniel Bor
    Medical Research Council Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, United Kingdom
    Neuron 37:361-7. 2003
    ..The results show that, even when memory demand decreases, organization of working memory contents into higher level chunks is associated with increased prefrontal activity...
  34. ncbi request reprint Modulation of spatial bias in the dual task paradigm: evidence from patients with unilateral parietal lesions and controls
    Polly V Peers
    MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB 2 2EF, UK
    Neuropsychologia 44:1325-35. 2006
    ..This shift may resemble general rightward shifts that have previously been linked to reduced arousal...
  35. ncbi request reprint State anxiety modulation of the amygdala response to unattended threat-related stimuli
    Sonia J Bishop
    Medical Research Council Cognition and Brain Sciences Unit, Cambridge CB2 2EF, United Kingdom
    J Neurosci 24:10364-8. 2004
    ..These findings suggest that anxiety may interact with attentional focus to determine the magnitude of the amygdala response to threat-related stimuli...
  36. ncbi request reprint Frontal lobe involvement in spatial span: converging studies of normal and impaired function
    Daniel Bor
    Medical Research Council, MRC Cognition and Brain Sciences Unit, 15 Chaucer Road, Cambridge CB2 2EF, UK
    Neuropsychologia 44:229-37. 2006
    ..It is suggested, however, that the patient deficit reflects strategic or goal-based dysfunction, rather than storage limitations...
  37. ncbi request reprint Restricted attentional capacity within but not between sensory modalities
    J Duncan
    MRC Applied Psychology Unit, Cambridge, UK
    Nature 387:808-10. 1997
    ..The results suggest a modality-specific restriction to concurrent attention and awareness; visual attention to one simple target does not restrict concurrent auditory attention to another...
  38. pmc Detection of fixed and variable targets in the monkey prefrontal cortex
    Makoto Kusunoki
    MRC Cognition and Brain Sciences Unit, Cambridge CB27EF, UK
    Cereb Cortex 19:2522-34. 2009
    ..This population similarity was seen despite quite different activity in the 2 tasks for many single cells. At the population level, the results suggest similar prefrontal coding of fixed and short-term behavioral significance...
  39. ncbi request reprint Within-modality and cross-modality attentional blinks in a simple discrimination task
    Grit Hein
    MRC Cognition and Brain Sciences Unit, Cambridge, England
    Percept Psychophys 68:54-61. 2006
    ..We conclude that, under our experimental conditions, restrictions in concurrent target identification are largely modality specific...
  40. ncbi request reprint Effect of template complexity on visual search and dual-task performance
    Patrick A Bourke
    Department of Psychology, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, United Kingdom
    Psychol Sci 16:208-13. 2005
    ..The results show that the dual-task demands of visual search reflect the complexity of the template used in task control, and that this factor can be isolated from other sources of difficulty...
  41. ncbi request reprint Intelligence tests predict brain response to demanding task events
    John Duncan
    Nat Neurosci 6:207-8. 2003
  42. ncbi request reprint Separate and shared sources of dual-task cost in stimulus identification and response selection
    Karen M Arnell
    Department of Psychology, North Dakota State University, Fargo 58105, USA
    Cogn Psychol 44:105-47. 2002
    ..For even such simple tasks as these, T--T2 interference reflects a combination of relatively local and relatively global sources...
  43. ncbi request reprint Nonconvulsive status epilepticus: Epilepsy Research Foundation workshop reports
    Matthew Walker
    Epilepsy Research Foundation, London, United Kingdom
    Epileptic Disord 7:253-96. 2005
    ..Perhaps, most importantly it was agreed that we lacked good clinical data, and the challenge was to design good studies for a condition that is underrecognised and often difficult to diagnose...
  44. ncbi request reprint Objects and events in the attentional blink
    Dianne M Sheppard
    School of Psychology, University of Wales, Bangor, Gwynedd
    Psychol Sci 13:410-5. 2002
    ..An AB is triggered only when a new attended event is defined, either when a long pause creates a new perceived stream (Experiment 4) or when attention shifts from the stream to the letter level (Experiment 3)...
  45. ncbi request reprint Implementation and application of a brain template for multiple volumes of interest
    Alexander Hammers
    Neuroscience Group of the Clinical Sciences Centre, Imperial College, Hammersmith Hospital, London, United Kingdom
    Hum Brain Mapp 15:165-74. 2002
    ..It can be used for different imaging modalities and in different orientations. It is necessary that imaging data for groups compared are acquired in the same orientation...