J Christopher Edgar
Affiliation: University of Illinois
- Interpreting abnormality: an EEG and MEG study of P50 and the auditory paired-stimulus paradigmJ 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...
- Cross-modal generality of the gating deficitJ 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...
- Reduced auditory M100 asymmetry in schizophrenia and dyslexia: applying a developmental instability approach to assess atypical brain asymmetryJ 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...
- Cognitive abilities and 50- and 100-msec paired-click processes in schizophreniaAshley 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...
- Depression and anxious apprehension distinguish frontocingulate cortical activity during top-down attentional controlRebecca 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...
- Superior temporal gyrus spectral abnormalities in schizophreniaJ 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...
- Lateralization of auditory sensory gating and neuropsychological dysfunction in schizophreniaRobert 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....
- Time course of processing emotional stimuli as a function of perceived emotional intelligence, anxiety, and depressionJoscelyn 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...
- Distinct M50 and M100 auditory gating deficits in schizophreniaFaith 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...
- Improved test-retest reliability of 50-ms paired-click auditory gating using magnetoencephalography source modelingBrett 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...
- Efficacy of olanzapine and risperidone in schizophrenia: a randomized double-blind crossover designJose 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...
- Time course of attentional bias in anxiety: emotion and gender specificitySarah 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...
- Effect of catechol O-methyltransferase val(158)met polymorphism on the p50 gating endophenotype in schizophreniaBrett 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...
- Frontal slow-wave activity as a predictor of negative symptoms, cognition and functional capacity in schizophreniaYu Han Chen
Yu Han Chen, PhD, The Children s Hospital of Philadelphia and University of Pennsylvania, Department of Radiology, Philadelphia Breannan Stone Howell, MS, New Mexico Raymond G Murphy VA Healthcare System, Psychiatry Research, Albuquerque, and The University of New Mexico School of Medicine, Department of Psychiatry, Albuquerque, New Mexico J Christopher Edgar, PhD, The Children s Hospital of Philadelphia and University of Pennsylvania, Department of Radiology, Philadelphia Mingxiong Huang, PhD, University of California, San Diego, Department of Radiology, and San Diego VA Healthcare System, Department of Radiology, San Diego, California Cassandra Wootton, BS, New Mexico Raymond G Murphy VA Healthcare System, Psychiatry Research, Albuquerque, and The University of New Mexico School of Medicine, Department of Psychiatry, Albuquerque, New Mexico Michael A Hunter, BS, New Mexico Raymond G Murphy VA Healthcare System, Psychiatry Research, Albuquerque, The University of New Mexico School of Medicine, Department of Psychiatry and Department of Psychology, Albuquerque, New Mexico Brett Y Lu, MD, PhD, Marseille
Br J Psychiatry 208:160-7. 2016..ResultsElevated delta and theta activity in right frontal and right temporoparietal regions was observed in the schizophrenia v...
- The time course of activity in dorsolateral prefrontal cortex and anterior cingulate cortex during top-down attentional controlRebecca 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...
- Electrophysiological signatures: magnetoencephalographic studies of the neural correlates of language impairment in autism spectrum disordersTimothy 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...
- Time-frequency discriminant analysis of MEG signalsMoon 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...
- ECoG gamma activity during a language task: differentiating expressive and receptive speech areasVernon L Towle
Department of Neurology, MC 2030, The University of Chicago, 5841 S Maryland Avenue, Chicago, IL 60637, USA
Brain 131:2013-27. 2008....
- Frequency domain analysis of human subdural recordingsVernon L Towle
Department of Neurology, The University of Chicago, Chicago, Illinois 60637, USA
J Clin Neurophysiol 24:205-13. 2007....
- Comparison of different cortical connectivity estimators for high-resolution EEG recordingsLaura Astolfi
Dipartimento Informatica e Sistemistica, Universita La Sapienza, Rome, Italy
Hum Brain Mapp 28:143-57. 2007....
- A parietal-frontal network studied by somatosensory oddball MEG responses, and its cross-modal consistencyMing Xiong Huang
Department of Radiology, University of California, San Diego, 92103 8756, USA
Neuroimage 28:99-114. 2005....