• Publications
  • Influence
Whole-brain anatomical networks: Does the choice of nodes matter?
We systematically and quantitatively assess the behavior, structure and topological attributes of whole-brain anatomical networks over a wide range of nodal scales, a variety of grey-matter parcellations as well as different diffusion-MRI acquisition protocols. Expand
Altered corticostriatal functional connectivity in obsessive-compulsive disorder.
CONTEXT Neurobiological models of obsessive-compulsive disorder (OCD) emphasize disturbances in the function and connectivity of brain corticostriatal networks, or "loops." Although neuroimagingExpand
Gray matter abnormalities in Major Depressive Disorder: a meta-analysis of voxel based morphometry studies.
BACKGROUND Voxel-based morphometry (VBM) has been widely used to quantify structural brain changes associated with Major Depressive Disorder (MDD). While some consistent findings have been reported,Expand
Regional brain abnormalities associated with long-term heavy cannabis use.
CONTEXT Cannabis is the most widely used illicit drug in the developed world. Despite this, there is a paucity of research examining its long-term effect on the human brain. OBJECTIVE To determineExpand
An evaluation of the efficacy, reliability, and sensitivity of motion correction strategies for resting-state functional MRI
We compare popular retrospective rs‐fMRI denoising methods, such as regression of head motion parameters and mean white matter (WM) and cerebrospinal fluid. Expand
The impact of cannabis use on cognitive functioning in patients with schizophrenia: a meta-analysis of existing findings and new data in a first-episode sample.
Cannabis use is highly prevalent among people with schizophrenia, and coupled with impaired cognition, is thought to heighten the risk of illness onset. However, while heavy cannabis use has beenExpand
Structural brain abnormalities in major depressive disorder: a selective review of recent MRI studies.
BACKGROUND While there is evidence to suggest that major depressive disorder (MDD) is associated with structural brain abnormalities, the precise nature of these abnormalities remains unclear. AIMSExpand
Hemispheric and gender-related differences in the gross morphology of the anterior cingulate/paracingulate cortex in normal volunteers: an MRI morphometric study.
The sulci and gyri found within the anterior cingulate (AC), and across the cerebrum generally, have been found to vary in location and complexity from one individual to the next, making it difficultExpand
Mapping grey matter reductions in schizophrenia: An anatomical likelihood estimation analysis of voxel-based morphometry studies
Voxel-based morphometry (VBM) is a popular tool for mapping neuroanatomical changes in schizophrenia patients. Several recent meta-analyses have identified the brain regions in which patients mostExpand
The emergence of depression in adolescence: Development of the prefrontal cortex and the representation of reward
Adolescent development is accompanied by the emergence of a population-wide increase in vulnerability to depression that is maintained through adulthood. We provide a model for understanding how thisExpand