Now showing items 21-28 of 28

    • Reduction of Caudate Nucleus Volumes in Neuroleptic-Naïve Female Subjects with Schizotypal Personality Disorder 

      Koo, Min-Seong; Levitt, James Jonathan; McCarley, Robert William; Seidman, Larry Joel; Dickey, Chandlee C.; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Zamani, Payman; Long, Katherine R.; Kim, Sunnie S.; Shenton, Martha Elizabeth (Elsevier BV, 2006)
      Background: The caudate nucleus might contribute to the psychopathological and cognitive deficits observed in schizotypal personality disorder (SPD), a schizophrenia spectrum disorder. Here we focused on female patients, ...
    • Shape abnormalities of caudate nucleus in schizotypal personality disorder 

      Levitt, James Jonathan; Styner, Martin; Niethammer, Marc; Bouix, Sylvain; Koo, Min-Seong; Voglmaier, Martina M.; Dickey, Chandlee C.; Niznikiewicz, Margaret A.; Kikinis, Ron; McCarley, Robert, W.; Shenton, Martha Elizabeth (Elsevier BV, 2009)
      Background: Previously, we reported abnormal volume and global shape in the caudate nucleus in schizotypal personality disorder (SPD). Here, we use a new shape measure which importantly permits local in addition to global ...
    • Shape of caudate nucleus and its cognitive correlates in neuroleptic-naive schizotypal personality disorder 

      Levitt, James Jonathan; Westin, Carl-Fredrik; Nestor, Paul Gerard; Estepar, Raul S.J; Dickey, Chandlee C.; Voglmaier, Martina M.; Seidman, Larry Joel; Kikinis, Ron; Jolesz, Ferenc A.; McCarley, Robert William; Shenton, Martha Elizabeth (Elsevier BV, 2004)
      Background: We measured the shape of the head of the caudate nucleus with a new approach based on magnetic resonance imaging (MRI) in schizotypal personality disorder (SPD) subjects in whom we previously reported decreased ...
    • Smaller Neocortical Gray Matter and Larger Sulcal Cerebrospinal Fluid Volumes in Neuroleptic-Naive Women With Schizotypal Personality Disorder 

      Koo, Min-Seong; Dickey, Chandlee C.; Park, Hae-Jeong; Kubicki, Marek R.; Ji, Na Young; Bouix, Sylvain; Pohl, Kilian M.; Levitt, James Jonathan; Nakamura, Motoaki; Shenton, Martha Elizabeth; McCarley, Robert William (American Medical Association (AMA), 2006)
      Context: Structural brain abnormalities, including larger cerebrospinal fluid (CSF) volumes, have been observed in men diagnosed as having schizotypal personality disorder (SPD). Objectives: To determine whether women ...
    • Thalamo-frontal white matter alterations in chronic schizophrenia 

      Oh, Jungsu S.; Kubicki, Marek R.; Rosenberger, Gudrun; Bouix, Sylvain; Levitt, James Jonathan; McCarley, Robert William; Westin, Carl-Fredrik; Shenton, Martha Elizabeth (Wiley-Blackwell, 2009)
      Diffusion tensor imaging (DTI) and fiber tractography are useful tools for reconstructing white matter tracts (WMT) in the brain. Previous tractography studies have sought to segment reconstructed WMT into anatomical ...
    • A Unifying Approach to Registration, Segmentation, and Intensity Correction 

      Pohl, Kilian M.; Fisher, John; Levitt, James Jonathan; Shenton, Martha Elizabeth; Kikinis, Ron; Grimson, William Eric Leifur; Wells, William Mercer (Springer Science + Business Media, 2005)
      We present a statistical framework that combines the registration of an atlas with the segmentation of magnetic resonance images. We use an Expectation Maximization-based algorithm to find a solution within the model, which ...
    • Volume of cerebellar vermis in monozygotic twins discordant for combat exposure: Lack of relationship to post-traumatic stress disorder 

      Levitt, James Jonathan; Chen, Q. Cece; May, Flavia S.; Gilbertson, Mark; Shenton, Martha Elizabeth; Pitman, roger Keith (Elsevier BV, 2006)
      Several functional neuroimaging studies have implicated the cerebellar vermis in post-traumatic stress disorder (PTSD), but there have been no structural neuroimaging studies of this brain structure in PTSD. We utilized ...
    • White matter tract abnormalities between rostral middle frontal gyrus, inferior frontal gyrus and striatum in first-episode schizophrenia 

      Quan, Meina; Lee, Sang-Hyuk; Kubicki, Marek R.; Kikinis, Zora; Rathi, Yogesh; Seidman, Larry Joel; Mesholam-Gately, Raquelle; Goldstein, Jill M.; McCarley, Robert William; Shenton, Martha Elizabeth; Levitt, James Jonathan (Elsevier BV, 2013)
      Background—Previous studies have shown that frontostriatal networks, especially those involving dorsolateral prefrontal cortex (DLPFC) and ventrolateral prefrontal cortex (VLPFC) mediate cognitive functions some of which ...