J Christopher Edgar

Summary

Affiliation: University of Illinois
Country: USA

Publications

  1. ncbi Interpreting abnormality: an EEG and MEG study of P50 and the auditory paired-stimulus paradigm
    J C Edgar
    New Mexico VA Healthcare System, Albuquerque, NM, USA
    Biol Psychol 65:1-20. 2003
  2. ncbi Cross-modal generality of the gating deficit
    J Christopher Edgar
    Department of Psychology and Beckman Institute Biomedical Imaging Center, University of Illinois at Urbana Champaign, Urbana, IL 61820, USA
    Psychophysiology 42:318-27. 2005
  3. ncbi Reduced auditory M100 asymmetry in schizophrenia and dyslexia: applying a developmental instability approach to assess atypical brain asymmetry
    J Christopher Edgar
    Department of Psychology and Beckman Institute Biomedical Imaging Center, University of Illinois at Urbana Champaign, Urbana, IL 61820, and Center for Functional Imaging, New Mexico VA Healthcare System, Albuquerque, NM, USA
    Neuropsychologia 44:289-99. 2006
  4. pmc Cognitive abilities and 50- and 100-msec paired-click processes in schizophrenia
    Ashley K Smith
    Center for Functional Brain Imaging, New Mexico VA Health Care System, 1501 San Pedro Drive S E, Albuquerque, NM 87108, USA
    Am J Psychiatry 167:1264-75. 2010
  5. doi Depression and anxious apprehension distinguish frontocingulate cortical activity during top-down attentional control
    Rebecca Levin Silton
    Department of Psychology, University of Illinois at Urbana Champaign, IL, USA
    J Abnorm Psychol 120:272-85. 2011
  6. pmc Superior temporal gyrus spectral abnormalities in schizophrenia
    J Christopher Edgar
    Department of Psychology, Beckman Institute Biomedical Imaging Center, University of Illinois at Urbana Champaign, Urbana, Illinois, USA
    Psychophysiology 45:812-24. 2008
  7. ncbi Lateralization of auditory sensory gating and neuropsychological dysfunction in schizophrenia
    Robert J Thoma
    Psychiatry Service, Department of Radiology, New Mexico VA Health Care System, VAMC 116A, 1501 San Pedro SE, Albuquerque, NM 87108, USA
    Am J Psychiatry 160:1595-605. 2003
  8. doi Time course of processing emotional stimuli as a function of perceived emotional intelligence, anxiety, and depression
    Joscelyn E Fisher
    Department of Psychology, University of Illinois at Urbana Champaign, USA
    Emotion 10:486-97. 2010
  9. ncbi Distinct M50 and M100 auditory gating deficits in schizophrenia
    Faith M Hanlon
    Center for Functional Brain Imaging, New Mexico VA Health Care System, Albuquerque, New Mexico 87108, USA
    Psychophysiology 42:417-27. 2005
  10. ncbi Improved test-retest reliability of 50-ms paired-click auditory gating using magnetoencephalography source modeling
    Brett Y Lu
    Department of Psychiatry, University of New Mexico, Albuquerque, New Mexico, USA
    Psychophysiology 44:86-90. 2007

Detail Information

Publications20

  1. ncbi Interpreting abnormality: an EEG and MEG study of P50 and the auditory paired-stimulus paradigm
    J C Edgar
    New Mexico VA Healthcare System, Albuquerque, NM, USA
    Biol Psychol 65:1-20. 2003
    ..The development and widespread use of EEG/MEG source localization methods will greatly enhance the interpretation and value of EEG/MEG data...
  2. ncbi Cross-modal generality of the gating deficit
    J Christopher Edgar
    Department of Psychology and Beckman Institute Biomedical Imaging Center, University of Illinois at Urbana Champaign, Urbana, IL 61820, USA
    Psychophysiology 42:318-27. 2005
    ..Patients showed abnormal auditory M50 gating but normal somatosensory M20 gating. Results argue against a cross-modal gating deficit in primary somatosensory cortex...
  3. ncbi Reduced auditory M100 asymmetry in schizophrenia and dyslexia: applying a developmental instability approach to assess atypical brain asymmetry
    J Christopher Edgar
    Department of Psychology and Beckman Institute Biomedical Imaging Center, University of Illinois at Urbana Champaign, Urbana, IL 61820, and Center for Functional Imaging, New Mexico VA Healthcare System, Albuquerque, NM, USA
    Neuropsychologia 44:289-99. 2006
    ..Findings suggest that M100 positional asymmetry is not a diagnostically specific feature in several neurodevelopmental conditions. Continued research examining DI and brain asymmetry relationships is warranted...
  4. pmc Cognitive abilities and 50- and 100-msec paired-click processes in schizophrenia
    Ashley K Smith
    Center for Functional Brain Imaging, New Mexico VA Health Care System, 1501 San Pedro Drive S E, Albuquerque, NM 87108, USA
    Am J Psychiatry 167:1264-75. 2010
    ..In addition, the functional implications remain unclear. In the present study, EEG and magnetoencephalography (MEG) were used to examine paired-click measures and cognitive correlates of paired-click activity...
  5. doi Depression and anxious apprehension distinguish frontocingulate cortical activity during top-down attentional control
    Rebecca Levin Silton
    Department of Psychology, University of Illinois at Urbana Champaign, IL, USA
    J Abnorm Psychol 120:272-85. 2011
    ..Results indicate that depression and anxious apprehension modulate temporally and functionally distinct aspects of the frontocingulate network involved in top-down attention control...
  6. pmc Superior temporal gyrus spectral abnormalities in schizophrenia
    J Christopher Edgar
    Department of Psychology, Beckman Institute Biomedical Imaging Center, University of Illinois at Urbana Champaign, Urbana, Illinois, USA
    Psychophysiology 45:812-24. 2008
    ..Compared to controls, patients with schizophrenia showed more low-frequency phase variability, and the decreased 100-ms S1 evoked response observed in patients was best predicted by the STG phase-locking measure...
  7. ncbi Lateralization of auditory sensory gating and neuropsychological dysfunction in schizophrenia
    Robert J Thoma
    Psychiatry Service, Department of Radiology, New Mexico VA Health Care System, VAMC 116A, 1501 San Pedro SE, Albuquerque, NM 87108, USA
    Am J Psychiatry 160:1595-605. 2003
    ....
  8. doi Time course of processing emotional stimuli as a function of perceived emotional intelligence, anxiety, and depression
    Joscelyn E Fisher
    Department of Psychology, University of Illinois at Urbana Champaign, USA
    Emotion 10:486-97. 2010
    ..Depression was not differentially associated with any emotion processing stage indexed by ERPs. Research in this area may lead to the development of therapies that focus on minimization of anxiety to foster successful emotion regulation...
  9. ncbi Distinct M50 and M100 auditory gating deficits in schizophrenia
    Faith M Hanlon
    Center for Functional Brain Imaging, New Mexico VA Health Care System, Albuquerque, New Mexico 87108, USA
    Psychophysiology 42:417-27. 2005
    ..In contrast, a right-hemisphere M100 gating deficit was unrelated to M50 gating in either hemisphere. Investigations of interhemisphere gating relations may clarify group differences in regional connectivity and their role in gating...
  10. ncbi Improved test-retest reliability of 50-ms paired-click auditory gating using magnetoencephalography source modeling
    Brett Y Lu
    Department of Psychiatry, University of New Mexico, Albuquerque, New Mexico, USA
    Psychophysiology 44:86-90. 2007
    ..Paired-click gating ratio reliability can be improved by examining the individual PACs rather than composite scalp-recorded activity...
  11. ncbi Efficacy of olanzapine and risperidone in schizophrenia: a randomized double-blind crossover design
    Jose M Canive
    Psychiatry Service, New Mexico VA Health Care System, Albuquerque, NM 87108, USA
    Psychopharmacol Bull 39:105-16. 2006
    ..Despite the small number of subjects, this study shows the potential of a within-subject design to elucidate differences in efficacy...
  12. pmc Time course of attentional bias in anxiety: emotion and gender specificity
    Sarah M Sass
    Department of Psychology, University of Illinois at Urbana Champaign, Champaign, IL 61820, USA
    Psychophysiology 47:247-59. 2010
    ..Healthy controls showed gender differences at both early and later processing stages. The conjunction of valence, arousal, and gender is critical in the time course of attentional bias...
  13. ncbi Effect of catechol O-methyltransferase val(158)met polymorphism on the p50 gating endophenotype in schizophrenia
    Brett Y Lu
    Department of Psychiatry, University of New Mexico, Albuquerque, New Mexico 87108, USA
    Biol Psychiatry 62:822-5. 2007
    ..The role of prefrontal dopamine on P50 gating was investigated, using catechol-O-methyltransferase (COMT) valine (val)(158)methionine (met) polymorphism as a predictor of prefrontal dopamine activity...
  14. doi The time course of activity in dorsolateral prefrontal cortex and anterior cingulate cortex during top-down attentional control
    Rebecca Levin Silton
    Department of Psychology, University of Illinois at Urbana Champaign, Urbana, IL 61820, USA
    Neuroimage 50:1292-302. 2010
    ..Overall, results were consistent with the temporal course of regional brain function proposed by the cascade-of-control model...
  15. ncbi Time-frequency discriminant analysis of MEG signals
    Moon ho Ringo Ho
    Division of Psychology, School of Humanities and Social Sciences, Nanyang Avenue, Nanyang Technological University, Singapore
    Neuroimage 40:174-86. 2008
    ..The method was then applied to magnetoencephalographic data from a standard paired-click paradigm. Discrimination between individuals with schizophrenia and a healthy comparison group confirmed the utility of the method...
  16. pmc Electrophysiological signatures: magnetoencephalographic studies of the neural correlates of language impairment in autism spectrum disorders
    Timothy P L Roberts
    Department of Radiology, Children s Hospital of Philadelphia, Philadelphia, PA 19104, United States
    Int J Psychophysiol 68:149-60. 2008
    ..These findings offer promise for the comprehensive assessment of developmental neuropsychiatric disorders...
  17. ncbi Comparison of different cortical connectivity estimators for high-resolution EEG recordings
    Laura Astolfi
    Dipartimento Informatica e Sistemistica, Universita La Sapienza, Rome, Italy
    Hum Brain Mapp 28:143-57. 2007
    ....
  18. pmc ECoG gamma activity during a language task: differentiating expressive and receptive speech areas
    Vernon L Towle
    Department of Neurology, MC 2030, The University of Chicago, 5841 S Maryland Avenue, Chicago, IL 60637, USA
    Brain 131:2013-27. 2008
    ....
  19. ncbi A parietal-frontal network studied by somatosensory oddball MEG responses, and its cross-modal consistency
    Ming Xiong Huang
    Department of Radiology, University of California, San Diego, 92103 8756, USA
    Neuroimage 28:99-114. 2005
    ....
  20. ncbi Frequency domain analysis of human subdural recordings
    Vernon L Towle
    Department of Neurology, The University of Chicago, Chicago, Illinois 60637, USA
    J Clin Neurophysiol 24:205-13. 2007
    ....