Jamshid Ghajar

Summary

Publications

  1. doi request reprint The predictive brain state: timing deficiency in traumatic brain injury?
    Jamshid Ghajar
    Brain Trauma Foundation, New York, New York 10017, USA
    Neurorehabil Neural Repair 22:217-27. 2008
  2. ncbi request reprint Increased oculomotor deficits during target blanking as an indicator of mild traumatic brain injury
    Minah Suh
    Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10021, USA
    Neurosci Lett 410:203-7. 2006
  3. doi request reprint Visual tracking synchronization as a metric for concussion screening
    Jun Maruta
    Brain Trauma Foundation, New York, NY 10007, USA
    J Head Trauma Rehabil 25:293-305. 2010
  4. pmc The generation and validation of white matter connectivity importance maps
    Amy Kuceyeski
    Dept of Radiology, Weill Cornell Medical College, New York, NY 10065, USA
    Neuroimage 58:109-21. 2011
  5. doi request reprint Structural dissociation of attentional control and memory in adults with and without mild traumatic brain injury
    Sumit N Niogi
    Sackler Institute for Developmental Psychobiology, Weill Cornell Medical College, New York, NY, USA
    Brain 131:3209-21. 2008
  6. doi request reprint Effective connectivity of the fronto-parietal network during attentional control
    Liang Wang
    Mount Sinai School of Medicine, New York, NY 10029, USA
    J Cogn Neurosci 22:543-53. 2010
  7. doi request reprint Effect of early nutrition on deaths due to severe traumatic brain injury
    Roger Hartl
    Department of Neurological Surgery, Weill Cornell Medical College, New York, New York 10021, USA
    J Neurosurg 109:50-6. 2008
  8. pmc Dynamic visuomotor synchronization: quantification of predictive timing
    Jun Maruta
    Brain Trauma Foundation, 7 World Trade Center, 250 Greenwich Street, New York, NY 10007, USA
    Behav Res Methods 45:289-300. 2013
  9. ncbi request reprint Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study
    Jin Fan
    Department of Psychiatry, Mount Sinai School of Medicine, New York, New York 10029, USA
    J Neurosci 27:2272-82. 2007
  10. doi request reprint The predictive brain state: asynchrony in disorders of attention?
    Jamshid Ghajar
    Department of Neurological Surgery, Weill Cornell Medical College, New York, NY, USA
    Neuroscientist 15:232-42. 2009

Collaborators

Detail Information

Publications41

  1. doi request reprint The predictive brain state: timing deficiency in traumatic brain injury?
    Jamshid Ghajar
    Brain Trauma Foundation, New York, New York 10017, USA
    Neurorehabil Neural Repair 22:217-27. 2008
    ..This dysfunction may constitute a fundamental defect in TBI as well as other attention disorders, causing working memory deficits, distractibility, a loss of goal-oriented behavior, and decreased awareness...
  2. ncbi request reprint Increased oculomotor deficits during target blanking as an indicator of mild traumatic brain injury
    Minah Suh
    Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10021, USA
    Neurosci Lett 410:203-7. 2006
    ....
  3. doi request reprint Visual tracking synchronization as a metric for concussion screening
    Jun Maruta
    Brain Trauma Foundation, New York, NY 10007, USA
    J Head Trauma Rehabil 25:293-305. 2010
    ..Gaze error variability was also significantly correlated with attention and working memory measures in neurocognitive testing; thus, measurement of visual tracking performance is promising as a fast and practical screening tool for mTBI...
  4. pmc The generation and validation of white matter connectivity importance maps
    Amy Kuceyeski
    Dept of Radiology, Weill Cornell Medical College, New York, NY 10065, USA
    Neuroimage 58:109-21. 2011
    ..These tools could be used by physicians to improve surgical planning, diagnosis, and assessment of disease severity in a variety of pathologies like multiple sclerosis, trauma, and stroke...
  5. doi request reprint Structural dissociation of attentional control and memory in adults with and without mild traumatic brain injury
    Sumit N Niogi
    Sackler Institute for Developmental Psychobiology, Weill Cornell Medical College, New York, NY, USA
    Brain 131:3209-21. 2008
    ..More generally, such findings suggest that diffusion anisotropy measurement can be used as a quantitative biomarker for neurocognitive function and dysfunction...
  6. doi request reprint Effective connectivity of the fronto-parietal network during attentional control
    Liang Wang
    Mount Sinai School of Medicine, New York, NY 10029, USA
    J Cogn Neurosci 22:543-53. 2010
    ..This result suggests that the IPS plays an initiative role in this network in the processing of surprise targets, whereas ACC and DLPFC interact with each other to resolve conflict through attentional modulation implemented via the IPS...
  7. doi request reprint Effect of early nutrition on deaths due to severe traumatic brain injury
    Roger Hartl
    Department of Neurological Surgery, Weill Cornell Medical College, New York, New York 10021, USA
    J Neurosurg 109:50-6. 2008
    ..The effect of timing and quantity of nutrition on death within the first 2 weeks of injury was analyzed in a large prospective database of adult patients with severe TBI in New York State...
  8. pmc Dynamic visuomotor synchronization: quantification of predictive timing
    Jun Maruta
    Brain Trauma Foundation, 7 World Trade Center, 250 Greenwich Street, New York, NY 10007, USA
    Behav Res Methods 45:289-300. 2013
    ..Because predictive timing is an important element of attention functioning, the visual-tracking paradigm and dynamic synchronization indices described here may be useful for attention assessment...
  9. ncbi request reprint Response anticipation and response conflict: an event-related potential and functional magnetic resonance imaging study
    Jin Fan
    Department of Psychiatry, Mount Sinai School of Medicine, New York, New York 10029, USA
    J Neurosci 27:2272-82. 2007
    ....
  10. doi request reprint The predictive brain state: asynchrony in disorders of attention?
    Jamshid Ghajar
    Department of Neurological Surgery, Weill Cornell Medical College, New York, NY, USA
    Neuroscientist 15:232-42. 2009
    ..Dysfunction of this temporal process may constitute a fundamental defect in attention, causing working memory problems, distractibility, and decreased awareness...
  11. doi request reprint Response to intracranial hypertension treatment as a predictor of death in patients with severe traumatic brain injury
    Arash Farahvar
    Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, USA
    J Neurosurg 114:1471-8. 2011
    ..This study utilizes a large prospective database to examine the effect of response to ICP-lowering therapy on risk of death within the first 2 weeks of injury in patients who sustained TBI and are older than 16 years...
  12. ncbi request reprint Predictive visual tracking: specificity in mild traumatic brain injury and sleep deprivation
    Jun Maruta
    Brain Trauma Foundation, 7 World Trade Center, 34th Floor, 250 Greenwich Street, New York, NY 10007
    Mil Med 179:619-25. 2014
    ..Results suggest that cognitive impairment associated with mTBI and fatigue may be triaged with the aid of visual tracking measures. ..
  13. doi request reprint Adaptation of visual tracking synchronization after one night of sleep deprivation
    Jianliang Tong
    Brain Trauma Foundation, 7 World Trade Center, 34th Floor, 250 Greenwich Street, New York, NY, 10007, USA
    Exp Brain Res 232:121-31. 2014
    ..Results suggest that acute sleep deprivation induces instability in visuomotor prediction, but there is compensatory visuomotor adaptation. Detection of these visual tracking features may aid in the identification of insufficient sleep...
  14. ncbi request reprint Marked improvement in adherence to traumatic brain injury guidelines in United States trauma centers
    Dale C Hesdorffer
    Gertrude H Sergievsky Center, Columbia University, New York, NY, USA
    J Trauma 63:841-7; discussion 847-8. 2007
    ..We conducted a survey of US trauma centers to evaluate guideline adherence, to examine predictors of adherence, and to compare our results with similar surveys conducted in 1991 and 2000...
  15. ncbi request reprint Deficits in predictive smooth pursuit after mild traumatic brain injury
    Minah Suh
    Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10021, USA
    Neurosci Lett 401:108-13. 2006
    ..This is the first report to our knowledge that TBI patients show impaired predictive SPEM and eye position variability, and that these impairments correlate with cognitive deficits...
  16. pmc Impact of falls on early mortality from severe traumatic brain injury
    Linda M Gerber
    Department of Public Health, Weill Cornell Medical College, New York, USA
    J Trauma Manag Outcomes 3:9. 2009
    ..This multi-center study was conducted to explore the impact of falls on early mortality from severe TBI among the elderly...
  17. ncbi request reprint A quantitative synchronization model for smooth pursuit target tracking
    Henning U Voss
    Citigroup Biomedical Imaging Center, Weill Medical College of Cornell University, 1300 York Avenue, P O Box 234, New York, NY 10021, USA
    Biol Cybern 96:309-22. 2007
    ..The model constitutes an example of synchronization of a complex biological system with perceived sensory signals...
  18. pmc Play, attention, and learning: how do play and timing shape the development of attention and influence classroom learning?
    James H Hedges
    Brain Trauma Foundation, New York, New York 10007, USA
    Ann N Y Acad Sci 1292:1-20. 2013
    ....
  19. pmc Age-specific cerebral perfusion pressure thresholds and survival in children and adolescents with severe traumatic brain injury*
    Baxter B Allen
    1Department of Neurology, Weill Cornell Medical College, New York, NY 2Department of Public Health, Weill Cornell Medical College, New York, NY 3Department of Surgery, Jamaica Hospital Medical Center, New York, NY 4Brain Trauma Foundation, New York, NY 5Department of Neurological Surgery, Weill Cornell Medical College, New York, NY
    Pediatr Crit Care Med 15:62-70. 2014
    ..The purpose of this study is to identify the impact of age-specific cerebral perfusion pressure thresholds on short-term survival among patients with severe traumatic brain injury...
  20. ncbi request reprint Detecting eye movement abnormalities from concussion
    Jun Maruta
    Brain Trauma Foundation, Stanford University School of Medicine, Stanford, Calif, USA
    Prog Neurol Surg 28:226-33. 2014
    ..Analyzing neuromotor functions, specifically oculomotor synchronization, can provide a fast, accurate, and reliable assessment of cognitive functions. © 2014 S. Karger AG, Basel. ..
  21. ncbi request reprint Concussion guidelines step 1: systematic review of prevalent indicators
    Nancy Carney
    Department of Medical Informatics and Clinical Epidemiology and Center for Spoken Language Understanding, Oregon Health and Science University, Portland, Oregon Brain Trauma Foundation, New York, New York Department of Neurosurgery, Stanford University School of Medicine, Stanford, California Department of Emergency Medicine and Departments of Psychiatry and Neurology, Icahn School of Medicine at Mount Sinai, New York, New York Department of Psychology, Portland State University, Portland, Oregon US Army Combat Casualty Care Research Program, US Army Medical Research and Materiel Command, Fort Detrick, Maryland
    Neurosurgery 75:S3-S15. 2014
    ..Currently, there is no evidence-based definition for concussion that is being uniformly applied in clinical and research settings...
  22. ncbi request reprint Direct transport within an organized state trauma system reduces mortality in patients with severe traumatic brain injury
    Roger Hartl
    Department of Neurological Surgery, Weill Medical College of Cornell University, and the Brain Trauma Foundation, New York, New York 10021, USA
    J Trauma 60:1250-6; discussion 1256. 2006
    ..This multi-center study was conducted to explore the effect of prehospital management decisions on early mortality after severe TBI...
  23. pmc A unified science of concussion
    Jun Maruta
    Brain Trauma Foundation, New York, New York 10007, USA
    Ann N Y Acad Sci 1208:58-66. 2010
    ....
  24. pmc Clinical trials in head injury
    Raj K Narayan
    Department of Neurosurgery, Temple University Hospital, Philadelphia, Pennsylvania 19140, USA
    J Neurotrauma 19:503-57. 2002
    ..This paper is an attempt to summarize the key points made at the workshop. It is hoped that these lessons will enhance the planning and design of future efforts in this important field of research...
  25. ncbi request reprint Guidelines for the management of severe traumatic brain injury. IX. Cerebral perfusion thresholds
    Susan L Bratton
    J Neurotrauma 24:S59-64. 2007
  26. ncbi request reprint Guidelines for the management of severe traumatic brain injury. XV. Steroids
    Susan L Bratton
    J Neurotrauma 24:S91-5. 2007
  27. ncbi request reprint Guidelines for the management of severe traumatic brain injury. Introduction
    Nancy A Carney
    J Neurotrauma 24:S1-2. 2007
  28. ncbi request reprint Guidelines for the management of severe traumatic brain injury. II. Hyperosmolar therapy
    Susan L Bratton
    J Neurotrauma 24:S14-20. 2007
  29. ncbi request reprint Guidelines for the management of severe traumatic brain injury. III. Prophylactic hypothermia
    Susan L Bratton
    J Neurotrauma 24:S21-5. 2007
  30. ncbi request reprint Guidelines for the management of severe traumatic brain injury. IV. Infection prophylaxis
    Susan L Bratton
    J Neurotrauma 24:S26-31. 2007
  31. ncbi request reprint Guidelines for the management of severe traumatic brain injury. V. Deep vein thrombosis prophylaxis
    Susan L Bratton
    J Neurotrauma 24:S32-6. 2007
  32. ncbi request reprint Guidelines for the management of severe traumatic brain injury. VI. Indications for intracranial pressure monitoring
    Susan L Bratton
    J Neurotrauma 24:S37-44. 2007
  33. ncbi request reprint Guidelines for the management of severe traumatic brain injury. VII. Intracranial pressure monitoring technology
    Susan L Bratton
    J Neurotrauma 24:S45-54. 2007
  34. ncbi request reprint Guidelines for the management of severe traumatic brain injury. VIII. Intracranial pressure thresholds
    Susan L Bratton
    J Neurotrauma 24:S55-8. 2007
  35. ncbi request reprint Guidelines for the management of severe traumatic brain injury. X. Brain oxygen monitoring and thresholds
    Susan L Bratton
    J Neurotrauma 24:S65-70. 2007
  36. ncbi request reprint Guidelines for the management of severe traumatic brain injury. I. Blood pressure and oxygenation
    Susan L Bratton
    J Neurotrauma 24:S7-13. 2007
  37. ncbi request reprint Guidelines for the management of severe traumatic brain injury. XI. Anesthetics, analgesics, and sedatives
    Susan L Bratton
    J Neurotrauma 24:S71-6. 2007
  38. ncbi request reprint Guidelines for the management of severe traumatic brain injury. XII. Nutrition
    Susan L Bratton
    J Neurotrauma 24:S77-82. 2007
  39. ncbi request reprint Guidelines for the management of severe traumatic brain injury. XIII. Antiseizure prophylaxis
    Susan L Bratton
    J Neurotrauma 24:S83-6. 2007
  40. ncbi request reprint Guidelines for the management of severe traumatic brain injury. XIV. Hyperventilation
    Susan L Bratton
    J Neurotrauma 24:S87-90. 2007
  41. ncbi request reprint Predictors of compliance with the evidence-based guidelines for traumatic brain injury care: a survey of United States trauma centers
    Dale C Hesdorffer
    GH Sergievsky Center, Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
    J Trauma 52:1202-9. 2002
    ..In 1995, evidence-based guidelines for the management of severe traumatic brain injury (TBI) were published and disseminated. Information regarding their implementation is limited...