Katherine A Johnson

Summary

Affiliation: Trinity College
Country: Ireland

Publications

  1. ncbi request reprint Response variability in attention deficit hyperactivity disorder: evidence for neuropsychological heterogeneity
    Katherine A Johnson
    Schools of Psychiatry and Genetics and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 45:630-8. 2007
  2. pmc Dissociation in performance of children with ADHD and high-functioning autism on a task of sustained attention
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 45:2234-45. 2007
  3. pmc What would Karl Popper say? Are current psychological theories of ADHD falsifiable?
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Behav Brain Funct 5:15. 2009
  4. doi request reprint fMRI activation during response inhibition and error processing: the role of the DAT1 gene in typically developing adolescents and those diagnosed with ADHD
    Wouter Braet
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 49:1641-50. 2011
  5. doi request reprint Impaired conflict resolution and alerting in children with ADHD: evidence from the Attention Network Task (ANT)
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, University of Dublin, Trinity College Dublin, Ireland
    J Child Psychol Psychiatry 49:1339-47. 2008
  6. doi request reprint Dissociation in response to methylphenidate on response variability in a group of medication naïve children with ADHD
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 46:1532-41. 2008
  7. doi request reprint Absence of the 7-repeat variant of the DRD4 VNTR is associated with drifting sustained attention in children with ADHD but not in controls
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
    Am J Med Genet B Neuropsychiatr Genet 147:927-37. 2008
  8. doi request reprint Functional developmental changes underlying response inhibition and error-detection processes
    Wouter Braet
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 47:3143-51. 2009
  9. doi request reprint Imaging the genetics of executive function
    Ciara M Greene
    Trinity College Institute of Neuroscience, Trinity College Dublin, Ireland
    Biol Psychol 79:30-42. 2008
  10. doi request reprint Sustained attention, attentional selectivity, and attentional capacity across the lifespan
    Laura P McAvinue
    Trinity College Institute of Neuroscience, Lloyd Building, Trinity College Dublin, Dublin 2, Ireland
    Atten Percept Psychophys 74:1570-82. 2012

Detail Information

Publications12

  1. ncbi request reprint Response variability in attention deficit hyperactivity disorder: evidence for neuropsychological heterogeneity
    Katherine A Johnson
    Schools of Psychiatry and Genetics and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 45:630-8. 2007
    ..The consistently poor performance in fast-frequency variability and error rates may be due to difficulties in sustained attention that fluctuate on a trial-to-trial basis...
  2. pmc Dissociation in performance of children with ADHD and high-functioning autism on a task of sustained attention
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 45:2234-45. 2007
    ..These data imply involvement of fronto-parietal attentional networks and sub-cortical arousal systems in the pathology of ADHD and prefrontal cortex dysfunction in children with HFA...
  3. pmc What would Karl Popper say? Are current psychological theories of ADHD falsifiable?
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Behav Brain Funct 5:15. 2009
    ..We conclude that theoreticians should focus, to a greater extent than currently practiced, on developing refutable theories of ADHD...
  4. doi request reprint fMRI activation during response inhibition and error processing: the role of the DAT1 gene in typically developing adolescents and those diagnosed with ADHD
    Wouter Braet
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 49:1641-50. 2011
    ..Finally, the ADHD group displayed decreased activation in parietal and (pre)frontal regions during response inhibition, and in frontal and medial brain regions on error trials...
  5. doi request reprint Impaired conflict resolution and alerting in children with ADHD: evidence from the Attention Network Task (ANT)
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, University of Dublin, Trinity College Dublin, Ireland
    J Child Psychol Psychiatry 49:1339-47. 2008
    ..This theory holds promise for dissociating discrete patterns of cognitive impairment in disorders where attentional deficits may often be subtle, such as in attention deficit hyperactivity disorder (ADHD)...
  6. doi request reprint Dissociation in response to methylphenidate on response variability in a group of medication naïve children with ADHD
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 46:1532-41. 2008
    ..MPH administration may have a specific effect on those performance components that reflect sustained attention and top-down control rather than arousal...
  7. doi request reprint Absence of the 7-repeat variant of the DRD4 VNTR is associated with drifting sustained attention in children with ADHD but not in controls
    Katherine A Johnson
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
    Am J Med Genet B Neuropsychiatr Genet 147:927-37. 2008
    ..Absence of the 7-repeat allele in children with ADHD is associated with a neurocognitive profile of drifting sustained attention that gives rise to variable and inconsistent performance...
  8. doi request reprint Functional developmental changes underlying response inhibition and error-detection processes
    Wouter Braet
    School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
    Neuropsychologia 47:3143-51. 2009
    ..Instead, the neurodevelopmental trajectory of these important executive functions may reveal the basis for the immature executive functioning of the young adolescent...
  9. doi request reprint Imaging the genetics of executive function
    Ciara M Greene
    Trinity College Institute of Neuroscience, Trinity College Dublin, Ireland
    Biol Psychol 79:30-42. 2008
    ..While the findings in the populations studied do not always converge, they all point to the usefulness of neuroimaging techniques such as fMRI as potential endophenotypes for parsing the genetic aetiology of executive function...
  10. doi request reprint Sustained attention, attentional selectivity, and attentional capacity across the lifespan
    Laura P McAvinue
    Trinity College Institute of Neuroscience, Lloyd Building, Trinity College Dublin, Dublin 2, Ireland
    Atten Percept Psychophys 74:1570-82. 2012
    ....
  11. ncbi request reprint Movement-related potentials in high-functioning autism and Asperger's disorder
    Nicole J Rinehart
    Department of Psychological Medicine, Monash Medical Centre, Victoria, Australia
    Dev Med Child Neurol 48:272-7. 2006
    ..The overlap between MRP traces for autism and Parkinson's disease suggests that the neurobiological wiring of motor functioning in autism may bypass the supplementary motor area/primary motor cortex pathway...
  12. ncbi request reprint Effect of an attentional strategy on movement-related potentials recorded from subjects with Huntington's disease
    Katherine A Johnson
    Neuropsychology Research Unit, Department of Psychology, Monash University, Victoria, Australia
    Mov Disord 17:998-1003. 2002
    ..These results are similar to those found previously with Parkinson's disease patients. The strategy may have put the task, which previously might have been under deficient automatic control, under attentional control...