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A new statistical method for testing hypotheses of neuropsychological/MRI relationships in schizophrenia: partial least squares analysis
(Elsevier BV, 2002)
We applied partial least squares (PLS) as a novel multivariate statistical technique to examine neuropsychological correlates of magnetic resonance imaging (MRI) measures of brain volumes in a well studied sample of 15 ...
Word priming in schizophrenia: Associational and semantic influences
(Elsevier BV, 2006)
We examined semantic vs. associational influences on word priming in schizophrenia. Tested on three occasions, subjects made speeded lexical decisions to three kinds of prime-word relationships: semantic-only (e.g., ...
Attentional networks and cingulum bundle in chronic schizophrenia?
(Elsevier BV, 2007)
Thirty patients with chronic schizophrenia and 30 age-matched controls performed the Attention Network Test (ANT). A subset of the patient group (n=18) also had available magnetic resonance diffusion tensor imaging (DTI) ...
Semantic disturbance in schizophrenia and its relationship to the cognitive neuroscience of attention
(Elsevier BV, 2001)
We view schizophrenia as producing a failure of attentional modulation that leads to a breakdown in the selective enhancement or inhibition of semantic/lexical representations whose biological substrata are widely distributed ...
Early nicotine withdrawal and transdermal nicotine effects on neurocognitive performance in schizophrenia
(Elsevier BV, 2008)
As cigarette smoking prevalence rates approach 90% in schizophrenia, an important emerging question is the role of nicotine in the disease-related disturbance in cognition. We therefore tested a total of 38 male cigarette ...
Orbitofrontal volume deficit in schizophrenia and thought disorder
(Oxford University Press (OUP), 2008)
Orbitofrontal Cortex (OFC) structural abnormality in schizophrenia has not been well characterized, probably due to marked anatomical variability and lack of consistent definitions. We previously reported OFC sulcogyral ...
Abnormal Neural Synchrony in Schizophrenia
(2003)
Schizophrenia has been conceptualized as a failure of cognitive integration, and abnormalities in neural circuitry (particularly inhibitory interneurons) have been proposed as a basis for this disorder. We used measures ...
Dissociable contributions of MRI volume reductions of superior temporal and fusiform gyri to symptoms and neuropsychology in schizophrenia
(Elsevier BV, 2007)
We sought to identify the functional correlates of reduced magnetic resonance imaging (MRI) volumes of the superior temporal gyrus (STG) and the fusiform gyrus (FG) in patients with chronic schizophrenia. MRI volumes, ...
Neuropsychological disturbance in schizophrenia: A diffusion tensor imaging study.
(American Psychological Association (APA), 2008)
Patients with schizophrenia and healthy control subjects underwent both neuropsychological evaluation and magnetic resonance diffusion tensor imaging, during which the cingulum bundle (CB) and the uncinate fasciculus (UF) ...
Comparing prefrontal gray and white matter contributions to intelligence and decision making in schizophrenia and healthy controls.
(American Psychological Association (APA), 2010)
We examined the relationship between neuropsychological performance and magnetic resonance imaging (MRI) of the orbital frontal cortex (OFC) and diffusion tensor imaging (DTI) of the cingulum bundle (CB) within groups of ...