John P John

Summary

Affiliation: National Institute of Mental Health and Neurosciences
Country: India

Publications

  1. ncbi request reprint Exploration of dimensions of psychopathology in neuroleptic-naïve patients with recent-onset schizophrenia/schizophreniform disorder
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Dharmaram P O, Bangalore 560 029, India
    Psychiatry Res 121:11-20. 2003
  2. doi request reprint Regional brain activation/deactivation during word generation in schizophrenia: fMRI study
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
    Br J Psychiatry 198:213-22. 2011
  3. doi request reprint EEG power spectra differentiate positive and negative subgroups in neuroleptic-naive schizophrenia patients
    John P John
    Department of Psychiatry at NIMH and Neurosciences NIMHANS, Bangalore, India
    J Neuropsychiatry Clin Neurosci 21:160-72. 2009
  4. pmc Corpus callosal area differences and gender dimorphism in neuroleptic-naïve, recent-onset schizophrenia and healthy control subjects
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Bangalore, India
    Schizophr Res 103:11-21. 2008
  5. ncbi request reprint A proposal for MRI-based parcellation of the frontal pole
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, P B No 2900, Dharmaram P O, Hosur Road, Bangalore, Karnataka, 560029, India
    Brain Struct Funct 212:245-53. 2007
  6. ncbi request reprint Inter-rater reliability of manual segmentation of the superior, inferior and middle frontal gyri
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Hosur Road, Bangalore 560 029, Karnataka, India
    Psychiatry Res 148:151-63. 2006
  7. doi request reprint Gender differences in the psychological impact of tsunami
    Biju Viswanath
    Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bangalore, India
    Int J Soc Psychiatry 59:130-6. 2013
  8. doi request reprint Differential relationship of frontal pole and whole brain volumetric measures with age in neuroleptic-naïve schizophrenia and healthy subjects
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Bangalore, India
    Schizophr Res 109:148-58. 2009
  9. pmc A systematic examination of brain volumetric abnormalities in recent-onset schizophrenia using voxel-based, surface-based and region-of-interest-based morphometric analyses
    John P John
    Additional Professor of Psychiatry and Adjunct Faculty of Clinical Neurosciences, Multimodal Brain Image Analysis Laboratory MBIAL, National Institute of Mental Health and Neurosciences NIMHANS, P B No 2900, Dharmaram P O, Hosur Road, Bangalore, 560 029, Karnataka, India
    J Negat Results Biomed 14:11. 2015
  10. doi request reprint Endogenous-cue prospective memory involving incremental updating of working memory: an fMRI study
    Harsha N Halahalli
    Multimodal Brain Image Analysis Laboratory MBIAL, Neurobiology Research Center NRC, Dharmaram P O, Hosur Road, PB No 2900, Bangalore, Karnataka, 560 029, India
    Brain Struct Funct 220:3611-26. 2015

Collaborators

Detail Information

Publications15

  1. ncbi request reprint Exploration of dimensions of psychopathology in neuroleptic-naïve patients with recent-onset schizophrenia/schizophreniform disorder
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Dharmaram P O, Bangalore 560 029, India
    Psychiatry Res 121:11-20. 2003
    ....
  2. doi request reprint Regional brain activation/deactivation during word generation in schizophrenia: fMRI study
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
    Br J Psychiatry 198:213-22. 2011
    ..Examination of the brain regions that show aberrant activations and/or deactivations during semantic word generation could pave the way for a better understanding of the neurobiology of cognitive dysfunction in schizophrenia...
  3. doi request reprint EEG power spectra differentiate positive and negative subgroups in neuroleptic-naive schizophrenia patients
    John P John
    Department of Psychiatry at NIMH and Neurosciences NIMHANS, Bangalore, India
    J Neuropsychiatry Clin Neurosci 21:160-72. 2009
    ....
  4. pmc Corpus callosal area differences and gender dimorphism in neuroleptic-naïve, recent-onset schizophrenia and healthy control subjects
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Bangalore, India
    Schizophr Res 103:11-21. 2008
    ..Additionally, the finding of females having larger areas of the whole CC and of the anterior and middle sub-regions could reflect a "normal hyperconnection" underlying increased ambilaterality in females...
  5. ncbi request reprint A proposal for MRI-based parcellation of the frontal pole
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, P B No 2900, Dharmaram P O, Hosur Road, Bangalore, Karnataka, 560029, India
    Brain Struct Funct 212:245-53. 2007
    ..Therefore, in the absence of a naturally occurring sulcal boundary, the proposed method for parcellation of the FP can provide unbiased volume estimations for studies of healthy and disordered populations of subjects...
  6. ncbi request reprint Inter-rater reliability of manual segmentation of the superior, inferior and middle frontal gyri
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Hosur Road, Bangalore 560 029, Karnataka, India
    Psychiatry Res 148:151-63. 2006
    ..97, 0.94 and 0.93, respectively. Thus, we describe a reliable method of parcellating the SFG, IFG and MFG, which constitute the DLPFC, a brain region involved in a variety of neuropsychiatric conditions...
  7. doi request reprint Gender differences in the psychological impact of tsunami
    Biju Viswanath
    Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bangalore, India
    Int J Soc Psychiatry 59:130-6. 2013
    ..The aim of this observational study was to explore gender-related differences in psychiatric morbidity during the initial three months following the December 2004 earthquake and tsunami involving the Andaman and Nicobar Islands, India...
  8. doi request reprint Differential relationship of frontal pole and whole brain volumetric measures with age in neuroleptic-naïve schizophrenia and healthy subjects
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences NIMHANS, Bangalore, India
    Schizophr Res 109:148-58. 2009
    ..These findings have implications in understanding the possible role of FP in the pathophysiology of schizophrenia...
  9. pmc A systematic examination of brain volumetric abnormalities in recent-onset schizophrenia using voxel-based, surface-based and region-of-interest-based morphometric analyses
    John P John
    Additional Professor of Psychiatry and Adjunct Faculty of Clinical Neurosciences, Multimodal Brain Image Analysis Laboratory MBIAL, National Institute of Mental Health and Neurosciences NIMHANS, P B No 2900, Dharmaram P O, Hosur Road, Bangalore, 560 029, Karnataka, India
    J Negat Results Biomed 14:11. 2015
    ....
  10. doi request reprint Endogenous-cue prospective memory involving incremental updating of working memory: an fMRI study
    Harsha N Halahalli
    Multimodal Brain Image Analysis Laboratory MBIAL, Neurobiology Research Center NRC, Dharmaram P O, Hosur Road, PB No 2900, Bangalore, Karnataka, 560 029, India
    Brain Struct Funct 220:3611-26. 2015
    ..We describe herein a novel prospective memory paradigm wherein the endogenous cue is generated by incremental updating of working memory, and investigated the hemodynamic correlates of this task...
  11. doi request reprint Apolipoprotein E4 and brain white matter integrity in Alzheimer's disease: tract-based spatial statistics study under 3-Tesla MRI
    Bhavani Shankara Bagepally
    National Institute of Mental Health and Neurosciences, Bangalore, India
    Neurodegener Dis 10:145-8. 2012
    ..Apolipoprotein E4 (ApoE ε4) polymorphism is a known genetic risk factor for Alzheimer's disease (AD)...
  12. doi request reprint A Multimodal Structural and Functional Neuroimaging Study of Amnestic Mild Cognitive Impairment
    Srikala Bharath
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India Geriatric Clinic and Services, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
    Am J Geriatr Psychiatry . 2016
    ..These findings differentiate aMCI from healthy aging and could constitute the earliest demonstrable neuroimaging findings of incipient dementia...
  13. doi request reprint Psychological impact of the tsunami on elderly survivors
    Biju Viswanath
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India
    Am J Geriatr Psychiatry 20:402-7. 2012
    ..The study aimed at comparing the psychiatric morbidity in geriatric versus nongeriatric (NG) adults during the initial 3 months following the December 2004 tsunami involving the Andaman and Nicobar Islands, India...
  14. ncbi request reprint Delusion of test-tube pregnancy in a sexually abused girl
    P N Manoj
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India
    Psychopathology 37:152-4. 2004
    ..The reported case illustrates the importance of contemporary themes in the evolution of psychopathology...
  15. pmc Expanding the schizophrenia phenotype: a composite evaluation of neurodevelopmental markers
    John P John
    Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, Bangalore 560 029, India
    Compr Psychiatry 49:78-86. 2008
    ..Minor physical anomalies and NSSs constitute independent neurodevelopmental markers of schizophrenia and would afford greater predictive validity when used as a composite endophenotype in genetic association studies...