J I Tracy

Summary

Affiliation: Thomas Jefferson University
Country: USA

Publications

  1. ncbi A comparison of 'Early' and 'Late' stage brain activation during brief practice of a simple motor task
    J I Tracy
    Departments of Neurology and Radiology, Thomas Jefferson University, Jefferson Medical College, 111 South 11th Street, Gibbon Bldg Suite 4150, Philadelphia, PA 19107, USA
    Brain Res Cogn Brain Res 10:303-16. 2001
  2. ncbi Anticholinergicity and cognitive processing in chronic schizophrenia
    J I Tracy
    Thomas Jefferson University Jefferson Medical College, Department of Neurology, Gibbon Building, Suite 4150, 111 South 11th Street, Philadelphia, PA 19107, USA
    Biol Psychol 56:1-22. 2001
  3. ncbi A comparison of memory for verbal and non-verbal material in schizophrenia
    J I Tracy
    Department of Radiology and Neurology, Thomas Jefferson University Jefferson Medical College, Gibbon Building, Suite 415, 111 South 11th Street, Philadelphia, PA 19107, USA
    Schizophr Res 50:199-211. 2001
  4. ncbi Test of a potential link between analytic and nonanalytic category learning and automatic, effortful processing
    J I Tracy
    Thomas Jefferson University Jefferson Medical College, 111 South 11th Street, Philadelphia, PA 19107, USA
    Brain Cogn 46:326-41. 2001
  5. ncbi Cerebellar mediation of the complexity of bimanual compared to unimanual movements
    J I Tracy
    Department of Neurology, Jefferson Medical College, Thomas Jefferson University, Philadelphia 19107, USA
    Neurology 57:1862-9. 2001
  6. ncbi Regional brain activation associated with different performance patterns during learning of a complex motor skill
    Joseph Tracy
    Department of Neurology, Thomas Jefferson University Jefferson Medical College, Philadelphia, PA 19107, USA
    Cereb Cortex 13:904-10. 2003
  7. ncbi Differential brain responses when applying criterion attribute versus family resemblance rule learning
    J I Tracy
    Department of Neurology and Radiology, Thomas Jefferson University, Jefferson Medical College, 111 South 11th Street, Gibbon Bldg, Suite 4150, Philadelphia, PA 19107, USA
    Brain Cogn 51:276-86. 2003
  8. ncbi Investigation of alternating and continuous experimental task designs during single finger opposition fMRI: a comparative study
    F B Mohamed
    Department of Radiological Sciences, MCP Hahnemann University School of Medicine, Philadelphia, PA 19129, USA
    J Comput Assist Tomogr 24:935-41. 2000
  9. ncbi The association of mood with quality of life ratings in epilepsy
    J I Tracy
    Department of Neurology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
    Neurology 68:1101-7. 2007
  10. ncbi BOLD fMRI of the visual cortex: quantitative responses measured with a graded stimulus at 1.5 Tesla
    Feroze B Mohamed
    Department of Radiological Sciences, MCP Hahnemann University, Philadelphia, Pennsylvania 19129, USA
    J Magn Reson Imaging 16:128-36. 2002

Collaborators

Detail Information

Publications12

  1. ncbi A comparison of 'Early' and 'Late' stage brain activation during brief practice of a simple motor task
    J I Tracy
    Departments of Neurology and Radiology, Thomas Jefferson University, Jefferson Medical College, 111 South 11th Street, Gibbon Bldg Suite 4150, Philadelphia, PA 19107, USA
    Brain Res Cogn Brain Res 10:303-16. 2001
    ..Implications for defining the neurocognitive function of the structures involved, particularly the cerebellum, are discussed...
  2. ncbi Anticholinergicity and cognitive processing in chronic schizophrenia
    J I Tracy
    Thomas Jefferson University Jefferson Medical College, Department of Neurology, Gibbon Building, Suite 4150, 111 South 11th Street, Philadelphia, PA 19107, USA
    Biol Psychol 56:1-22. 2001
    ..Relevant neuroanatomic structures and implications for models of cognitive deficits in schizophrenia are discussed...
  3. ncbi A comparison of memory for verbal and non-verbal material in schizophrenia
    J I Tracy
    Department of Radiology and Neurology, Thomas Jefferson University Jefferson Medical College, Gibbon Building, Suite 415, 111 South 11th Street, Philadelphia, PA 19107, USA
    Schizophr Res 50:199-211. 2001
    ..To the degree verbal and non-verbal memory functions can be lateralized in the brain, these data support the possibility of deficits in both right and left hemisphere declarative memory systems in schizophrenia...
  4. ncbi Test of a potential link between analytic and nonanalytic category learning and automatic, effortful processing
    J I Tracy
    Thomas Jefferson University Jefferson Medical College, 111 South 11th Street, Philadelphia, PA 19107, USA
    Brain Cogn 46:326-41. 2001
    ..The data do not support any simple mapping of analytic and nonanalytic forms of category learning onto the automatic and effortful processing dichotomy and challenge simple models of brain asymmetries for such procedures...
  5. ncbi Cerebellar mediation of the complexity of bimanual compared to unimanual movements
    J I Tracy
    Department of Neurology, Jefferson Medical College, Thomas Jefferson University, Philadelphia 19107, USA
    Neurology 57:1862-9. 2001
    ....
  6. ncbi Regional brain activation associated with different performance patterns during learning of a complex motor skill
    Joseph Tracy
    Department of Neurology, Thomas Jefferson University Jefferson Medical College, Philadelphia, PA 19107, USA
    Cereb Cortex 13:904-10. 2003
    ..While these interpretations are not resolved, the study makes clear that single time-point images of motor skill can be misleading because the brain structures that implement action can change following practice...
  7. ncbi Differential brain responses when applying criterion attribute versus family resemblance rule learning
    J I Tracy
    Department of Neurology and Radiology, Thomas Jefferson University, Jefferson Medical College, 111 South 11th Street, Gibbon Bldg, Suite 4150, Philadelphia, PA 19107, USA
    Brain Cogn 51:276-86. 2003
    ..For instance, anterior temporal structures may help attune visual processing systems to high frequency components to support the learning of criterial, highly predictive rules...
  8. ncbi Investigation of alternating and continuous experimental task designs during single finger opposition fMRI: a comparative study
    F B Mohamed
    Department of Radiological Sciences, MCP Hahnemann University School of Medicine, Philadelphia, PA 19129, USA
    J Comput Assist Tomogr 24:935-41. 2000
    ..The results showed that different patterns of acquisition yield differences in the BOLD signal at field strength of 1.5 T, and that an alternating task design can be considered more optimal than a continuous task design...
  9. ncbi The association of mood with quality of life ratings in epilepsy
    J I Tracy
    Department of Neurology, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
    Neurology 68:1101-7. 2007
    ..To determine the relative contributions of psychological (mood and anxiety), social, and seizure-related variables to quality of life (QOL) scores in epilepsy...
  10. ncbi BOLD fMRI of the visual cortex: quantitative responses measured with a graded stimulus at 1.5 Tesla
    Feroze B Mohamed
    Department of Radiological Sciences, MCP Hahnemann University, Philadelphia, Pennsylvania 19129, USA
    J Magn Reson Imaging 16:128-36. 2002
    ..To measure and quantitatively characterize an activity generated by the neurons of the visual cortex (VC) in response to graded luminous intensity contrast stimuli using a 1.5 Tesla scanner...
  11. ncbi Quantitative functional MR imaging of the visual cortex at 1.5 T as a function of luminance contrast in healthy volunteers and patients with multiple sclerosis
    Scott H Faro
    Department of Radiological Sciences, MCP Hahnemann University, 3300 Henry Ave, Philadelphia, PA 19129, USA
    AJNR Am J Neuroradiol 23:59-65. 2002
    ..5 T in controls. The patients with MS showed a significant decrease in the number of activated voxels and an increase in activation threshold compared with healthy controls...
  12. ncbi The effectiveness of low-frequency stimulation for mapping cortical function
    Andro Zangaladze
    Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA
    Epilepsia 49:481-7. 2008
    ..To establish the efficacy and safety of low-frequency electrical stimulation for cortical brain mapping...