Search
Now showing items 1-10 of 13
Factors in sensory processing of prosody in schizotypal personality disorder: An fMRI experiment
(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 ...
Local white matter geometry from diffusion tensor gradients
(Elsevier BV, 2010)
We introduce a mathematical framework for computing geometrical properties of white matter fibres directly from diffusion tensor fields. The key idea is to isolate the portion of the gradient of the tensor field corresponding ...
Filtered Multitensor Tractography
(Institute of Electrical & Electronics Engineers (IEEE), 2010)
We describe a technique that uses tractography to drive the local fiber model estimation. Existing techniques use independent estimation at each voxel so there is no running knowledge of confidence in the estimated model ...
A Geometry-Based Particle Filtering Approach to White Matter Tractography
(Springer Science + Business Media, 2010)
We introduce a fibre tractography framework based on a particle filter which estimates a local geometrical model of the underlying white matter tract, formulated as a `streamline flow' using generalized helicoids. The ...
Gray matter volume reduction in rostral middle frontal gyrus in patients with chronic schizophrenia
(Elsevier BV, 2010)
The dorsolateral prefrontal cortex (DLPFC) is a brain region that has figured prominently in studies of schizophrenia and working memory, yet the exact neuroanatomical localization of this brain region remains to be defined. ...
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 ...
Corpus Callosum Abnormalities and Their Association with Psychotic Symptoms in Patients with Schizophrenia
(Elsevier BV, 2010)
Background—Whilst the neuroanatomical underpinnings of the functional brain disconnectivity observed in patients with schizophrenia remain elusive, white matter fiber bundles of the brain are a likely candidate given that ...
A filtered approach to neural tractography using the Watson directional function
(Elsevier BV, 2010)
We propose a technique to simultaneously estimate the local fiber orientations and perform multifiber tractography. Existing techniques estimate the local fiber orientation at each voxel independently so there is no running ...
Anisotropy of transcallosal motor fibres indicates functional impairment in children with periventricular leukomalacia
(Wiley-Blackwell, 2010)
Aim—In children with bilateral spastic cerebral palsy (CP), periventricular leukomalacia (PVL) is commonly identified on magnetic resonance imaging. We characterized this white matter
condition by examining callosal ...
Electrophysiological and diffusion tensor imaging evidence of delayed corollary discharges in patients with schizophrenia
(Cambridge University Press (CUP), 2010)
Patients with schizophrenia (SZ) characteristically exhibit supranormal levels of cortical activity to self-induced sensory stimuli, ostensibly because of abnormalities in the neural signals (corollary discharges, CDs) ...