Pritha Das

Summary

Affiliation: University of Sydney
Country: Australia

Publications

  1. ncbi Pathways for fear perception: modulation of amygdala activity by thalamo-cortical systems
    Pritha Das
    Neuroscience Institute of Schizophrenia and Allied Disorders NISAD, Darlinghurst, NSW, Australia
    Neuroimage 26:141-8. 2005
  2. ncbi Functional disconnections in the direct and indirect amygdala pathways for fear processing in schizophrenia
    Pritha Das
    Neuroscience Institute of Schizophrenia and Allied Disorders, Darlinghurst, NSW 2010, Australia
    Schizophr Res 90:284-94. 2007
  3. ncbi The dynamics of cortico-amygdala and autonomic activity over the experimental time course of fear perception
    Leanne M Williams
    The Brain Dynamics Centre, Westmead Hospital, NSW, 2145, Australia
    Brain Res Cogn Brain Res 21:114-23. 2004
  4. ncbi Fronto-limbic and autonomic disjunctions to negative emotion distinguish schizophrenia subtypes
    Leanne M Williams
    Brain Dynamics Centre, Westmead Hospital, NSW, 2145, Australia
    Psychiatry Res 155:29-44. 2007
  5. ncbi Influence of comorbid depression on fear in posttraumatic stress disorder: an fMRI study
    Andrew H Kemp
    Brain Dynamics Centre, Westmead Hospital and Western Clinical, School University of Sydney, Sydney, NSW, Australia
    Psychiatry Res 155:265-9. 2007
  6. ncbi BOLD, sweat and fears: fMRI and skin conductance distinguish facial fear signals
    Leanne M Williams
    Brain Dynamics Centre, University of Sydney, Westmead Hospital, NSW, 2145, Australia
    Neuroreport 16:49-52. 2005
  7. ncbi Dysregulation of arousal and amygdala-prefrontal systems in paranoid schizophrenia
    Leanne M Williams
    The Brain Dynamics Centre, Westmead Hospital and University of Sydney, NSW, Australia
    Am J Psychiatry 161:480-9. 2004
  8. ncbi Changes in anterior cingulate and amygdala after cognitive behavior therapy of posttraumatic stress disorder
    Kim Felmingham
    Brain Dynamics Centre, Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
    Psychol Sci 18:127-9. 2007
  9. ncbi Mode of functional connectivity in amygdala pathways dissociates level of awareness for signals of fear
    Leanne M Williams
    The Brain Dynamics Centre, Westmead Millenium Institute and University of Sydney, Sydney, New South Wales, 2145, Australia
    J Neurosci 26:9264-71. 2006
  10. ncbi A functional MRI study of Theory of Mind in euthymic bipolar disorder patients
    Gin S Malhi
    Discipline of Psychological Medicine, University of Sydney, CADE Clinic, Department of Academic Psychiatry, Level 5, Building 36, Royal North Shore Hospital, St Leonards, Sydney, NSW 2065, Australia
    Bipolar Disord 10:943-56. 2008

Detail Information

Publications13

  1. ncbi Pathways for fear perception: modulation of amygdala activity by thalamo-cortical systems
    Pritha Das
    Neuroscience Institute of Schizophrenia and Allied Disorders NISAD, Darlinghurst, NSW, Australia
    Neuroimage 26:141-8. 2005
    ..Breakdowns in these interactions may give rise to affect-related symptoms seen in a range of neuropsychiatric disorders...
  2. ncbi Functional disconnections in the direct and indirect amygdala pathways for fear processing in schizophrenia
    Pritha Das
    Neuroscience Institute of Schizophrenia and Allied Disorders, Darlinghurst, NSW 2010, Australia
    Schizophr Res 90:284-94. 2007
    ..In this study we tested the hypothesis that schizophrenia is characterized by abnormal functional connectivity in the amygdala network underlying fear perception...
  3. ncbi The dynamics of cortico-amygdala and autonomic activity over the experimental time course of fear perception
    Leanne M Williams
    The Brain Dynamics Centre, Westmead Hospital, NSW, 2145, Australia
    Brain Res Cogn Brain Res 21:114-23. 2004
    ..These findings suggest that sustained cortico-amygdala and autonomic responses may serve to prime the emotional content of fear signals, and differentiate them from initial stimulus novelty...
  4. ncbi Fronto-limbic and autonomic disjunctions to negative emotion distinguish schizophrenia subtypes
    Leanne M Williams
    Brain Dynamics Centre, Westmead Hospital, NSW, 2145, Australia
    Psychiatry Res 155:29-44. 2007
    ....
  5. ncbi Influence of comorbid depression on fear in posttraumatic stress disorder: an fMRI study
    Andrew H Kemp
    Brain Dynamics Centre, Westmead Hospital and Western Clinical, School University of Sydney, Sydney, NSW, Australia
    Psychiatry Res 155:265-9. 2007
    ..Amygdala and medial prefrontal activity was reduced in PTSD-depression compared to PTSD-alone samples, highlighting the need to account for comorbidity...
  6. ncbi BOLD, sweat and fears: fMRI and skin conductance distinguish facial fear signals
    Leanne M Williams
    Brain Dynamics Centre, University of Sydney, Westmead Hospital, NSW, 2145, Australia
    Neuroreport 16:49-52. 2005
    ..The findings suggest that fear, anger and disgust perception involves specific interactions in the neural arousal systems for emotion and motivation...
  7. ncbi Dysregulation of arousal and amygdala-prefrontal systems in paranoid schizophrenia
    Leanne M Williams
    The Brain Dynamics Centre, Westmead Hospital and University of Sydney, NSW, Australia
    Am J Psychiatry 161:480-9. 2004
    ..It was predicted that paranoid patients would be distinguished by a disjunction of hyperarousal but reduced amygdala and medial prefrontal activity relative to both healthy comparison subjects and patients with nonparanoid schizophrenia...
  8. ncbi Changes in anterior cingulate and amygdala after cognitive behavior therapy of posttraumatic stress disorder
    Kim Felmingham
    Brain Dynamics Centre, Westmead Millennium Institute, Westmead Hospital, Westmead, New South Wales, Australia
    Psychol Sci 18:127-9. 2007
  9. ncbi Mode of functional connectivity in amygdala pathways dissociates level of awareness for signals of fear
    Leanne M Williams
    The Brain Dynamics Centre, Westmead Millenium Institute and University of Sydney, Sydney, New South Wales, 2145, Australia
    J Neurosci 26:9264-71. 2006
    ....
  10. ncbi A functional MRI study of Theory of Mind in euthymic bipolar disorder patients
    Gin S Malhi
    Discipline of Psychological Medicine, University of Sydney, CADE Clinic, Department of Academic Psychiatry, Level 5, Building 36, Royal North Shore Hospital, St Leonards, Sydney, NSW 2065, Australia
    Bipolar Disord 10:943-56. 2008
    ..To determine the neural responses invoked in Theory of Mind (ToM) in euthymic bipolar patients as compared with healthy subjects...
  11. ncbi A direct brainstem-amygdala-cortical 'alarm' system for subliminal signals of fear
    Belinda J Liddell
    School of Psychology, University of Sydney, NSW 2006, Australia
    Neuroimage 24:235-43. 2005
    ..This network may represent an evolutionary adaptive neural 'alarm' system for rapid alerting to sources of threat, without the need for conscious appraisal...
  12. ncbi Spatiotemporal wavelet resampling for functional neuroimaging data
    Michael Breakspear
    Brain Dynamics Centre, Westmead Hospital and University of Sydney, Sydney, Australia
    Hum Brain Mapp 23:1-25. 2004
    ..The limitations and possible extensions of the proposed technique are discussed...
  13. ncbi The multiscale character of evoked cortical activity
    Michael Breakspear
    The Black Dog Institute, Hospital Rd, Prince of Wales Hospital and The School of Psychiatry, University of New South Wales, Randwick, NSW 2031, Australia
    Neuroimage 30:1230-42. 2006
    ..It also affords a quantitative means of testing hierarchical and multiscale models of cortical activity...