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Left Auditory Cortex Gamma Synchronization and Auditory Hallucination Symptoms in Schizophrenia
(BioMed Central, 2009)
Background: Oscillatory electroencephalogram (EEG) abnormalities may reflect neural circuit dysfunction in neuropsychiatric disorders. Previously we have found positive correlations between the phase synchronization of ...
Deformable organisms for automatic medical image analysis
(Elsevier BV, 2002)
We introduce a new approach to medical image analysis that combines deformable model methodologies with concepts from the field of artificial life. In particular, we propose ‘deformable organisms’, autonomous agents whose ...
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 Recall in Schizophrenia: A Connectionist Model
(American Psychiatric Publishing, 1998)
Objective:The authors examined word recall of patients with schizophrenia by using an experimental paradigm generated from connectionist models of memory.Method:Schizophrenic patients and normal comparison subjects first ...
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., ...
On Diffusion Tensor Estimation
(IEEE, 2006)
In this paper we propose a formal formulation for the estimation of Diffusion Tensors in the space of symmetric positive semidefinite (PSD) tensors. Traditionally, diffusion tensor model estimation has been carried out ...
Genetic contributions to changes of fiber tracts of ventral visual stream in 22q11.2 deletion syndrome
(Springer Science + Business Media, 2013)
Patients with 22q11.2 deletion syndrome (22q11.2DS) represent a population at high risk for
developing schizophrenia, as well as learning disabilities. Deficits in visuo-spatial memory are
thought to underlie some of the ...
Estimation of Extracellular Volume from Regularized Multi-shell Diffusion MRI
(Springer Science + Business Media, 2012)
Diffusion MRI measures micron scale displacement of water molecules, providing unique insight into microstructural tissue architecture. However, current practical image resolution is in the millimeter scale, and thus ...
Fiber geometry in the corpus callosum in schizophrenia: Evidence for transcallosal misconnection
(Elsevier BV, 2011)
Background—Structural abnormalities in the callosal fibers connecting the heteromodal association areas of the prefrontal and temporoparietal cortices bilaterally have been suggested to play a role in the etiology of ...
Maximum Entropy Estimation of Glutamate and Glutamine in MR Spectroscopic Imaging
(Springer Science + Business Media, 2014)
Magnetic resonance spectroscopic imaging (MRSI) is often used to estimate the concentration of several brain metabolites. Abnormalities in these concentrations can indicate specific pathology, which can be quite useful in ...