Now showing items 1-20 of 26

    • Abnormal pitch mismatch negativity in individuals with schizotypal personality disorder 

      Niznikiewicz, Margaret A.; Spencer, Kevin M.; Dickey, Chandlee C.; Voglmaier, Martina M.; Seidman, Larry Joel; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2009)
      Background: The goal of the study was to examine mismatch negativity (MMN) in schizotypal personality disorder (SPD) individuals. Abnormal MMN has been a consistent finding in chronic schizophrenia and there are also have ...
    • Auditory processing abnormalities in schizotypal personality disorder: An fMRI experiment using tones of deviant pitch and duration 

      Dickey, Chandlee C.; Morocz, Istvan; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Toner, Sarah; Khan, Usman; Dreusicke, Mark; Yoo, Seung-Schik; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2008)
      Background: One of the cardinal features of schizotypal personality disorder (SPD) is language abnormalities. The focus of this study was to determine whether or not there are also processing abnormalities of pure tones ...
    • Clinical, cognitive, and social characteristics of a sample of neuroleptic-naive persons with schizotypal personality disorder 

      Dickey, Chandlee C.; McCarley, Robert William; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Seidman, Larry Joel; Kim, Sunnie; Shenton, Martha Elizabeth (Elsevier BV, 2005)
      Introduction: Schizotypal personality disorder (SPD) shares with schizophrenia many biological features, yet little is known about the clinical characteristics of persons diagnosed with this disorder. This report describes ...
    • A comparative profile analysis of neuropsychological function in men and women with schizotypal personality disorder 

      Voglmaier, Martina M.; Seidman, Larry Joel; Niznikiewicz, Margaret A.; Dickey, Chandlee C.; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2005)
      The purpose of this study was to compare the cognitive profiles of men and women with clinically defined schizotypal personality disorder (SPD). We examined the neuropsychological profile of SPD in 26 right-handed females ...
    • Dichotic listening in schizotypal personality disorder: Evidence for gender and laterality effects 

      Voglmaier, Martina M.; Seidman, Larry Joel; Niznikiewicz, Margaret A.; Madan, Anita; Dickey, Chandlee C.; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2009)
      Verbal dichotic listening performance was examined in 42 right-handed men and women with DSM-IV-defined schizotypal personality disorder (SPD) and 68 right-handed controls. As expected, both male and female control groups ...
    • Electrophysiological Correlates of Language Processing in Schizotypal Personality Disorder 

      Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Shenton, Martha Elizabeth; Seidman, Larry Joel; Dickey, Chandlee C.; Rhoads, Richard; Teh, Enkeat; McCarley, Robert William (American Psychiatric Publishing, 1999)
      Objective: This study examined whether the electrophysiological correlates of language processing found previously to be abnormal in schizophrenia are also abnormal in schizotypal individuals. The authors used the N400 ...
    • Facial emotion recognition and facial affect display in schizotypal personality disorder 

      Dickey, Chandlee C.; Panych, Lawrence Patrick; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Terry, Douglas P.; Murphy, Cara; Zacks, Rayna; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2011)
      Background—Patients with schizophrenia have deficits in facial affect expression and detection that hinder social interactions. The goal of this study was to examine whether or not epidemiologically-related antipsychotic-naïve ...
    • Factors in sensory processing of prosody in schizotypal personality disorder: An fMRI experiment 

      Dickey, Chandlee C.; Morocz, Istvan; Minney, Daniel; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Panych, Lawrence Patrick; Khan, Usman; Zacks, Rayna; Terry, Douglas P.; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2010)
      Introduction—Persons diagnosed with schizophrenia demonstrate deficits in prosody recognition. To examine prosody along the schizophrenia spectrum, antipsychotic-naïve schizotypal personality disorder (SPD) subjects and ...
    • The five-factor model in schizotypal personality disorder 

      Gurrera, Ronald Joseph; Dickey, Chandlee C.; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Shenton, Martha Elizabeth; McCarley, Robert William (Elsevier BV, 2005)
      Studies of the five-factor model of personality in schizotypal personality disorder (SPD) have produced inconsistent results, particularly with respect to openness. In the present study, the NEO-FFI was used to measure ...
    • Fronto–Temporal Disconnectivity in Schizotypal Personality Disorder: A Diffusion Tensor Imaging Study 

      Nakamura, Motoaki; McCarley, Robert William; Kubicki, Marek R.; Dickey, Chandlee C.; Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Seidman, Larry Joel; Maier, Stephan Ernst; Westin, Carl-Fredrik; Kikinis, Ron; Shenton, Martha Elizabeth (Elsevier BV, 2005)
      Background: Using diffusion tensor imaging (DTI), we previously reported abnormalities in two critical white matter tracts in schizophrenia, the uncinate fasciculus (UF) and the cingulum bundle (CB), both related to ...
    • Large CSF Volume Not Attributable to Ventricular Volume in Schizotypal Personality Disorder 

      Dickey, Chandlee C.; Shenton, Martha Elizabeth; Hirayasu, Yoshio; Fischer, Iris; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Seidman, Larry Joel; Fraone, Stephanie; McCarley, Robert William (American Psychiatric Publishing, 2000)
      Objective: The purpose of this study was to determine whether schizotypal personality disorder, which has the same genetic diathesis as schizophrenia, manifests abnormalities in whole-brain and CSF volumes. Method: Sixteen ...
    • Lateralized P3 deficit in schizotypal personality disorder 

      Niznikiewicz, Margaret A.; Voglmaier, Martina M.; Shenton, Martha Elizabeth; Dickey, Chandlee C.; Seidman, Larry Joel; Teh, EngKeat; Van Rhoads, Richard; McCarley, Robert William (Elsevier BV, 2000)
      Background: Reduced, left-lateralized P3 amplitude has been reported in several studies focusing on electrophysiologic function in schizophrenia. Also, several lines of evidence suggest a similarity between schizophrenia ...
    • MRI abnormalities of the hippocampus and cavum septi pellucidi in females with schizotypal personality disorder 

      Dickey, Chandlee C.; McCarley, Robert William; Xu, Mina L.; Seidman, Larry Joel; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Connor, Erin; Shenton, Martha Elizabeth (Elsevier BV, 2007)
      Objective: This study examined MRI hippocampal volume and cavum septi pellucidi (CSP) in female subjects with schizotypal personality disorder (SPD) and comparison subjects. Method: MRI was performed on 20 SPD and 29 ...
    • MRI Study of Caudate Nucleus Volume and Its Cognitive Correlates in Neuroleptic-Naive Patients With Schizotypal Personality Disorder 

      Levitt, James Jonathan; McCarley, Robert William; Dickey, Chandlee C.; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Seidman, Larry Joel; Hirayasu, Yoshio; Ciszewski, Aleksandra A.; Kikinis, Ron; Jolesz, Ferenc A.; Shenton, Martha Elizabeth (American Psychiatric Publishing, 2002)
      Objective: “Cognitive” circuits anatomically link the frontal lobe to subcortical structures; therefore, pathology in any of the core components of these circuits, such as in the caudate nucleus, may result in neurobehavioral ...
    • A MRI study of fusiform gyrus in schizotypal personality disorder 

      Dickey, Chandlee C.; McCarley, Robert William; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Seidman, Larry Joel; Frumin, Melissa; Toner, Sarah; Demeo, Susan; Shenton, Martha Elizabeth (Elsevier BV, 2003)
      The fusiform gyrus is important for face and object recognition, is abnormal in schizophrenia, but has not been studied in schizotypal personality disorder (SPD). Thin-slice MR images showed no differences, either in right, ...
    • An MRI Study of Superior Temporal Gyrus Volume in Women With Schizotypal Personality Disorder 

      Dickey, Chandlee C.; McCarley, Robert William; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Seidman, Larry Joel; Demeo, Susan; Frumin, Melissa; Shenton, Martha Elizabeth (American Psychiatric Publishing, 2003)
      Objective: An abnormal superior temporal gyrus has figured prominently in schizophrenia research, and left superior temporal gyrus volume has been shown to be smaller in male subjects with schizotypal personality disorder. ...
    • Processing sentence context in women with schizotypal personality disorder: An ERP study 

      Niznikiewicz, Margaret A.; Friedman, Michelle; Shenton, Martha Elizabeth; Voglmaier, Martina M.; Nestor, Paul Gerard; Frumin, Melissa; Seidman, Larry Joel; Sutton, Johnathan; McCarley, Robert William (Wiley-Blackwell, 2004)
      Accumulating evidence suggests that schizophrenic patients do not use context efficiently. Also, studies suggest similarities in clinical and cognitive profiles between schizophrenic and schizotypal personality disorder ...
    • 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, ...
    • Schizotypal personality disorder and MRI abnormalities of temporal lobe gray matter 

      Dickey, Chandlee C.; McCarley, Robert William; Voglmaier, Martina M.; Niznikiewicz, Margaret A.; Seidman, Larry Joel; Hirayasu, Yoshio; Fischer, Iris; Teh, Eng Kaet; Van Rhoads, Richard; Jakab, Marianna; Kikinis, Ron; Jolesz, Ferenc A.; Shenton, Martha Elizabeth (Elsevier BV, 1999)
      Background: Structural MRI data indicate schizophrenics have reduced left-sided temporal lobe gray matter volumes, especially in the superior temporal gyrus (STG) and medial temporal lobe. Our data further suggest a ...
    • Semantic Dysfunction in Women With Schizotypal Personality Disorder 

      Niznikiewicz, Margaret A.; Shenton, Martha Elizabeth; Voglmaier, Martina M.; Nestor, Paul Gerard; Dickey, Chandlee C.; Frumin, Melissa; Seidman, Larry Joel; Allen, Christopher G.; McCarley, Robert William (American Psychiatric Publishing, 2002)
      Objective: This study examined whether early or late processes in semantic networks were abnormal in women with a diagnosis of schizotypal personality disorder. The N400 component of the EEG event-related potentials was ...