S J Johnstone

Summary

Affiliation: University of Wollongong
Country: Australia

Publications

  1. ncbi Event-rate effects in the flanker task: ERPs and task performance in children with and without AD/HD
    Stuart J Johnstone
    School of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Wollongong NSW 2522 Australia Electronic address
    Int J Psychophysiol 87:340-8. 2013
  2. ncbi Ten years on: a follow-up review of ERP research in attention-deficit/hyperactivity disorder
    Stuart J Johnstone
    School of Psychology, University of Wollongong, Wollongong, Australia
    Clin Neurophysiol 124:644-57. 2013
  3. ncbi EEG from a single-channel dry-sensor recording device
    Stuart J Johnstone
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, Wollongong, New South Wales, Australia
    Clin EEG Neurosci 43:112-20. 2012
  4. ncbi Neurocognitive training for children with and without AD/HD
    Stuart J Johnstone
    School of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Atten Defic Hyperact Disord 4:11-23. 2012
  5. ncbi An investigation of the event-related slow-wave potential (0.01-2 HZ) in normal children
    S J Johnstone
    Department of Psychology, University of Wollongong, Australia
    Int J Psychophysiol 32:15-34. 1999
  6. ncbi Behavioural and ERP indices of response inhibition during a Stop-signal task in children with two subtypes of Attention-Deficit Hyperactivity Disorder
    Stuart J Johnstone
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, NSW, Australia
    Int J Psychophysiol 66:37-47. 2007
  7. ncbi Response inhibition and interference control in children with AD/HD: a visual ERP investigation
    Stuart J Johnstone
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, NSW 2522, Australia
    Int J Psychophysiol 72:145-53. 2009
  8. ncbi Dysfunctional response preparation and inhibition during a visual Go/No-go task in children with two subtypes of attention-deficit hyperactivity disorder
    Stuart J Johnstone
    School of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Psychiatry Res 166:223-37. 2009
  9. ncbi Event-related slow-wave activity in two subtypes of attention-deficit/hyperactivity disorder
    Stuart J Johnstone
    Brain and Behaviour Research Institute, University of Wollongong, Wollongong 2522, Australia
    Clin Neurophysiol 114:504-14. 2003
  10. ncbi Varying required effort during interference control in children with AD/HD: task performance and ERPs
    Stuart J Johnstone
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Int J Psychophysiol 76:174-85. 2010

Detail Information

Publications49

  1. ncbi Event-rate effects in the flanker task: ERPs and task performance in children with and without AD/HD
    Stuart J Johnstone
    School of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Wollongong NSW 2522 Australia Electronic address
    Int J Psychophysiol 87:340-8. 2013
    ..Therefore, inattention in children with AD/HD may have its locus in response preparation, as opposed to stimulus processing, but more research is required to validate these conjectures...
  2. ncbi Ten years on: a follow-up review of ERP research in attention-deficit/hyperactivity disorder
    Stuart J Johnstone
    School of Psychology, University of Wollongong, Wollongong, Australia
    Clin Neurophysiol 124:644-57. 2013
    ....
  3. ncbi EEG from a single-channel dry-sensor recording device
    Stuart J Johnstone
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, Wollongong, New South Wales, Australia
    Clin EEG Neurosci 43:112-20. 2012
    ..Overall, the results suggest that, while limited in terms of scalp recording locations, the portable device has potential utility in certain EEG recording situations where ease of use is a priority...
  4. ncbi Neurocognitive training for children with and without AD/HD
    Stuart J Johnstone
    School of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Atten Defic Hyperact Disord 4:11-23. 2012
    ..The passive attention monitoring via EEG had a minor effect on training outcomes. Overall, the results suggest that combined WM/IC training can result in improved behavioural control for children with and without AD/HD...
  5. ncbi An investigation of the event-related slow-wave potential (0.01-2 HZ) in normal children
    S J Johnstone
    Department of Psychology, University of Wollongong, Australia
    Int J Psychophysiol 32:15-34. 1999
    ..The SW-ERP was found to be partly responsible for the differences in component amplitude and morphology between sites observed in the raw ERPs...
  6. ncbi Behavioural and ERP indices of response inhibition during a Stop-signal task in children with two subtypes of Attention-Deficit Hyperactivity Disorder
    Stuart J Johnstone
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, NSW, Australia
    Int J Psychophysiol 66:37-47. 2007
    ..These data suggest that the apparent atypical inhibitory processing at N2 and P3 may stem, at least in part, from atypical early sensory/alerting processing of all stimuli in children with AD/HDin...
  7. ncbi Response inhibition and interference control in children with AD/HD: a visual ERP investigation
    Stuart J Johnstone
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, NSW 2522, Australia
    Int J Psychophysiol 72:145-53. 2009
    ..These results indicate that Go-Nogo behavioral inhibition and Flanker interference control were not equally impaired in children with AD/HD, and that factors such as effort, arousal and motivation require further investigation...
  8. ncbi Dysfunctional response preparation and inhibition during a visual Go/No-go task in children with two subtypes of attention-deficit hyperactivity disorder
    Stuart J Johnstone
    School of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Psychiatry Res 166:223-37. 2009
    ..In addition to replicating previous AD/HDcom findings, these results indicate that children with AD/HDin differ from controls in response preparation and inhibition during a cued visual Go/Nogo task...
  9. ncbi Event-related slow-wave activity in two subtypes of attention-deficit/hyperactivity disorder
    Stuart J Johnstone
    Brain and Behaviour Research Institute, University of Wollongong, Wollongong 2522, Australia
    Clin Neurophysiol 114:504-14. 2003
    ..This study investigated the influence of event-related slow-wave (SW) (0.01-2 Hz) activity in the group differences seen between children with and without attention-deficit/hyperactivity disorder (AD/HD) of different subtypes...
  10. ncbi Varying required effort during interference control in children with AD/HD: task performance and ERPs
    Stuart J Johnstone
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Int J Psychophysiol 76:174-85. 2010
    ..Taken together these findings suggest the role of other factors such as state regulation as underlying deficits in AD/HD...
  11. ncbi A pilot study of combined working memory and inhibition training for children with AD/HD
    Stuart J Johnstone
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, NSW, Australia
    Atten Defic Hyperact Disord 2:31-42. 2010
    ..Despite limitations, this preliminary work indicates the potential for cognitive training that concurrently targets the interrelated processes of WM and inhibition to be used as a treatment for AD/HD...
  12. ncbi Inhibitory motor control in children with attention-deficit/hyperactivity disorder: event-related potentials in the stop-signal paradigm
    Aneta Dimoska
    Department of Psychology, University of Wollongong, Wollongong, Australia
    Biol Psychiatry 54:1345-54. 2003
    ..Slower inhibitory processing appears to be due to a specific neural deficiency that manifests in the processing of the stop signal as attenuated negativity in the N2 latency range...
  13. ncbi Arousal-state modulation in children with AD/HD
    Nicholas Benikos
    School of Psychology, Brain and Behaviour Research Institute, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Clin Neurophysiol 120:30-40. 2009
    ..To investigate the effect of arousal-state modulation, via manipulation of stimulus event-rate, on response inhibition in children with Attention-Deficit/Hyperactivity disorder (AD/HD) using behavioural and ERP measures...
  14. ncbi Movement-related potentials in the Go/NoGo task: the P3 reflects both cognitive and motor inhibition
    Janette L Smith
    School of Psychology, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia
    Clin Neurophysiol 119:704-14. 2008
    ..The contribution of movement-related potentials (MRPs) to the Go/NoGo N2 and P3 'inhibitory' effects is controversial. This study examined these components in overt and covert response inhibition tasks...
  15. ncbi Topographic distribution and developmental timecourse of auditory event-related potentials in two subtypes of attention-deficit hyperactivity disorder
    S J Johnstone
    Department of Psychology, University of Wollongong, Northfields Avenue, Wollongong NSW 2522, Australia
    Int J Psychophysiol 42:73-94. 2001
    ..The across-region results revealed differing patterns of abnormal component development for each subtype, indicating a qualitative difference in information processing stage deficits in each of these AD/HD subtypes...
  16. ncbi Effects of pre-stimulus processing on subsequent events in a warned Go/NoGo paradigm: response preparation, execution and inhibition
    Janette L Smith
    Department of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Australia
    Int J Psychophysiol 61:121-33. 2006
    ..Together, these data suggest that the inhibitory process may be reflected in the NoGo P3 effect, rather than the NoGo N2 effect...
  17. ncbi Response priming in the Go/NoGo task: the N2 reflects neither inhibition nor conflict
    Janette L Smith
    School of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Wollongong, Australia
    Clin Neurophysiol 118:343-55. 2007
    ..If so, they should be affected by response preparation when the prediction of an informative cue is incorrect...
  18. ncbi Effects of varying stop-signal probability on ERPs in the stop-signal task: do they reflect variations in inhibitory processing or simply novelty effects?
    Aneta Dimoska
    Department of Psychology and the Brain and Behaviour Research Institute, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Biol Psychol 77:324-36. 2008
    ..Together, the present findings indicate that ERP differences between rare and frequent stop-signals did not primarily reflect varying inhibitory requirements, but rather may be confounded by novelty effects...
  19. ncbi The effect of methylphenidate on response inhibition and the event-related potential of children with attention deficit/hyperactivity disorder
    Samantha J Broyd
    Department of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Wollongong 2522, Australia
    Int J Psychophysiol 58:47-58. 2005
    ....
  20. ncbi Methylphenidate effects in attention deficit/hyperactivity disorder: electrodermal and ERP measures during a continuous performance task
    Carlie A Lawrence
    Department of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Wollongong 2522, Australia
    Psychopharmacology (Berl) 183:81-91. 2005
    ..These results, in combination with general differences in electrodermal activity, support a hypo-arousal model of AD/HD, which can explain the action of MPH in these children...
  21. ncbi Neural mechanisms underlying trait impulsivity in non-clinical adults: stop-signal performance and event-related potentials
    Aneta Dimoska
    Brain and Behaviour Research Institute, Department of Psychology, University of Wollongong, Northfields Ave, Wollongong, NSW 2522, Australia
    Prog Neuropsychopharmacol Biol Psychiatry 31:443-54. 2007
    ..These results provide a unique insight into the neural mechanisms underlying trait impulsivity in non-clinical adults...
  22. ncbi Chronic use of cannabis and poor neural efficiency in verbal memory ability
    Robert A Battisti
    School of Psychology, University of Wollongong, Wollongong, Australia
    Psychopharmacology (Berl) 209:319-30. 2010
    ..We sought to examine the impact of chronic cannabis use upon memory-related brain function via examination of the subsequent memory effect (SME) of the event-related potential (ERP)...
  23. ncbi Event-related potentials during an emotional Stroop task
    Susan J Thomas
    Brain and Behaviour Research Institute, School of Psychology, University of Wollongong, Australia
    Int J Psychophysiol 63:221-31. 2007
    ..It is concluded that ERPs are a sensitive measure of processes underlying emotional Stroop performance, which can be used to elucidate attentional biases in healthy and clinical populations...
  24. ncbi Event-related potentials reveal processing differences in honest vs malingered memory performance
    Hilarie P Tardif
    Department of Psychology, University of Wollongong, 2522, Wollongong, Australia
    Int J Psychophysiol 46:147-58. 2002
    ..A discriminant function analysis using reaction time and ERP measures resulted in 82% correct classification of honest and simulated performance, with 79% correct on cross-validation...
  25. ncbi Effects of imipramine hydrochloride on the EEG of children with Attention-Deficit/Hyperactivity Disorder who are non-responsive to stimulants
    Adam R Clarke
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong 2522, Australia
    Int J Psychophysiol 68:186-92. 2008
    ..However, as no change in the EEG was found with imipramine, it is unlikely that the EEG will be useful in evaluating responsivity to this medication...
  26. ncbi Age and gender effects in EEG coherence: I. Developmental trends in normal children
    Robert J Barry
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Clin Neurophysiol 115:2252-8. 2004
    ..This study investigated intra-hemispheric and inter-hemispheric EEG coherences as a function of age and gender in normal children...
  27. ncbi Inhibitory processing during the Go/NoGo task: an ERP analysis of children with attention-deficit/hyperactivity disorder
    Janette L Smith
    Department of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Clin Neurophysiol 115:1320-31. 2004
    ..SIGNIFICANCE: The results support the theory that behavioural inhibition is deficient in AD/HD, as children with AD/HD show abnormalities in inhibitory ERP components relating to the effort involved in inhibiting a prepotent response...
  28. ncbi Caffeine effects on resting-state arousal in children
    Robert J Barry
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Int J Psychophysiol 73:355-61. 2009
    ..This may be helpful in determining the role of hypothetical arousal anomalies in syndromes such as attention-deficit/hyperactivity disorder...
  29. ncbi A review of electrophysiology in attention-deficit/hyperactivity disorder: I. Qualitative and quantitative electroencephalography
    Robert J Barry
    Department of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Northfields Avenue, 2522, Wollongong, NSW, Australia
    Clin Neurophysiol 114:171-83. 2003
    ..This article reviews the electroencephalography (EEG) literature in relation to attention-deficit/hyperactivity disorder (AD/HD)...
  30. ncbi A review of electrophysiology in attention-deficit/hyperactivity disorder: II. Event-related potentials
    Robert J Barry
    Department of Psychology and Brain and Behaviour Research Institute, University of Wollongong, Wollongong, NSW, Australia
    Clin Neurophysiol 114:184-98. 2003
    ..This article reviews the event-related potential (ERP) literature in relation to attention-deficit/hyperactivity disorder (AD/HD)...
  31. ncbi Electroencephalogram theta/beta ratio and arousal in attention-deficit/hyperactivity disorder: evidence of independent processes
    Robert J Barry
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, Australia
    Biol Psychiatry 66:398-401. 2009
    ..However, this usage has not been validated. We aimed to directly test the theta/beta ratio as a marker of arousal within this population...
  32. ncbi Preferred EEG brain states at stimulus onset in a fixed interstimulus interval auditory oddball task, and their effects on ERP components
    Robert J Barry
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Wollongong 2522, Australia
    Int J Psychophysiol 47:187-98. 2003
    ....
  33. ncbi EEG differences in children between eyes-closed and eyes-open resting conditions
    Robert J Barry
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong 2522, Australia
    Clin Neurophysiol 120:1806-11. 2009
    ..activation in adults showed that skin conductance levels (SCLs) increased, and global alpha levels decreased, from eyes-closed to eyes-open resting baseline conditions. This study explored whether similar effects occur in children...
  34. ncbi Timing of caffeine's impact on autonomic and central nervous system measures: clarification of arousal effects
    Robert J Barry
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Biol Psychol 77:304-16. 2008
    ..These caffeine results are consistent with our recent electrodermal and EEG studies of arousal, and confirm the potential use of caffeine as a simple means of experimentally modifying arousal levels without task-related confounds...
  35. ncbi EEG coherence adjusted for inter-electrode distance in children with attention-deficit/hyperactivity disorder
    Robert J Barry
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Wollongong 2522, Australia
    Int J Psychophysiol 58:12-20. 2005
    ..Further research using the coherence adjustment procedure appears useful in elucidating the electrophysiological anomalies underlying AD/HD and other disorders...
  36. ncbi Caffeine effects on resting-state arousal
    Robert J Barry
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, NSW, Australia
    Clin Neurophysiol 116:2693-700. 2005
    ....
  37. ncbi Quantitative EEG in low-IQ children with attention-deficit/hyperactivity disorder
    Adam R Clarke
    School of Psychology, Brain and Behaviour Research Institute, University of Wollongong, Northfields Avenue, Wollongong 2522, NSW, Australia
    Clin Neurophysiol 117:1708-14. 2006
    ..This study investigated EEG differences between children with attention-deficit/hyperactivity disorder (AD/HD) and matched control subjects, with either normal or low IQs...
  38. ncbi The auditory-evoked N2 and P3 components in the stop-signal task: indices of inhibition, response-conflict or error-detection?
    Aneta Dimoska
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Brain Cogn 62:98-112. 2006
    ..Together these findings indicate that the successful-stop N2 and P3 reflect functionally distinct aspects of response control that are dependent upon performance strategies, while failed-stop N2 and P3 reflect error-related activity...
  39. ncbi The development of stop-signal and Go/Nogo response inhibition in children aged 7-12 years: performance and event-related potential indices
    Stuart J Johnstone
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, NSW, Australia
    Int J Psychophysiol 63:25-38. 2007
    ....
  40. ncbi Age and gender effects in EEG coherence: II. Boys with attention deficit/hyperactivity disorder
    Robert J Barry
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Northfields Avenue, Wollongong NSW 2522, Australia
    Clin Neurophysiol 116:977-84. 2005
    ..This study investigated intra-hemispheric and inter-hemispheric EEG coherences as a function of age in boys with different subtypes of Attention Deficit/Hyperactivity Disorder (AD/HD), in comparison with a control group of normal boys...
  41. ncbi Coherence in children with Attention-Deficit/Hyperactivity Disorder and excess beta activity in their EEG
    Adam R Clarke
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, Australia
    Clin Neurophysiol 118:1472-9. 2007
    ....
  42. ncbi Event-related potentials in the auditory oddball as a function of EEG alpha phase at stimulus onset
    Robert J Barry
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia
    Clin Neurophysiol 115:2593-601. 2004
    ....
  43. ncbi Caffeine effects on ERPs and performance in an auditory Go/NoGo task
    Robert J Barry
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, NSW, Australia
    Clin Neurophysiol 118:2692-9. 2007
    ..We sought components showing amplitude changes without topography changes, as would be expected of a pure arousal amplification of source activity...
  44. ncbi Effects of stimulant medications on the EEG of girls with Attention-Deficit/Hyperactivity Disorder
    Adam R Clarke
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, Australia
    Clin Neurophysiol 118:2700-8. 2007
    ..This study investigated the effects of stimulant medications on the EEG of girls with AD/HD...
  45. ncbi EEG differences between eyes-closed and eyes-open resting conditions
    Robert J Barry
    Brain and Behaviour Research Institute and School of Psychology, University of Wollongong, Wollongong, NSW, Australia
    Clin Neurophysiol 118:2765-73. 2007
    ..This study aimed to investigate this further in terms of differences in EEG activity between eyes-closed and eyes-open resting conditions...
  46. ncbi Effects of methylphenidate on EEG coherence in attention-deficit/hyperactivity disorder
    Adam R Clarke
    Brain and Behaviour Research Institute and Department of Psychology, University of Wollongong, Wollongong 2522, Australia
    Int J Psychophysiol 58:4-11. 2005
    ..These results suggest the existence of structural as well as functional brain dysfunction in AD/HD...
  47. ncbi Aiding diagnosis of attention-deficit/hyperactivity disorder and its subtypes: discriminant function analysis of event-related potential data
    Janette L Smith
    Brain and Behaviour Research Institute, University of Wollongong, NSW, Australia
    J Child Psychol Psychiatry 44:1067-75. 2003
    ..Suggestions are made to combine ERP measures with other measures of brain function in order to improve classification accuracy, and also to predict drug response in children diagnosed with AD/HD...
  48. ncbi Quantitative EEG analysis in dexamphetamine-responsive adults with attention-deficit/hyperactivity disorder
    Susan M Bresnahan
    Brain and Behaviour Research Institute, and Department of Psychology, University of Wollongong, Wollongong, NSW 2522, Australia
    Psychiatry Res 141:151-9. 2006
    ..These results suggest that changes in brain function of good responders to dexamphetamine, as reflected in the EEG, may underlie the behavioural improvements observed in the clinical setting...
  49. ncbi Electrophysiology in attention-deficit/hyperactivity disorder
    Robert J Barry
    Int J Psychophysiol 58:1-3. 2005