• Publications
  • Influence
Whole Brain Segmentation Automated Labeling of Neuroanatomical Structures in the Human Brain
The technique is shown to be comparable in accuracy to manual labeling, and of sufficient sensitivity to robustly detect changes in the volume of noncortical structures that presage the onset of probable Alzheimer's disease. Expand
Automatically parcellating the human cerebral cortex.
A technique for automatically assigning a neuroanatomical label to each location on a cortical surface model based on probabilistic information estimated from a manually labeled training set is presented, comparable in accuracy to manual labeling. Expand
Borders of multiple visual areas in humans revealed by functional magnetic resonance imaging.
Cortical magnification factor curves for striate and extrastriate cortical areas were determined, which showed that human visual areas have a greater emphasis on the center-of-gaze than their counterparts in monkeys. Expand
Calibrated functional MRI: mapping the dynamics of oxidative metabolism.
BOLD signal magnitude is shown to be reduced by 32% from its expected level by the action of oxygen metabolism, indicating clearly that oxidative metabolism is a significant component of the metabolic response of the brain to functionally induced changes in cellular activity. Expand
Object-related activity revealed by functional magnetic resonance imaging in human occipital cortex.
Evidence for an intermediate link in the chain of processing stages leading to object recognition in human visual cortex is reported, which suggests that the enhanced responses to objects were not a manifestation of low-level visual processing. Expand
Building memories: remembering and forgetting of verbal experiences as predicted by brain activity.
Findings provide direct evidence that left prefrontal and temporal regions jointly promote memory formation for verbalizable events. Expand
Top-down facilitation of visual recognition.
  • M. Bar, K. Kassam, +8 authors E. Halgren
  • Psychology, Medicine
  • Proceedings of the National Academy of Sciences…
  • 10 January 2006
The dynamics revealed provide strong support for the proposal of how top-down facilitation of object recognition is initiated, and are used to derive predictions for future research. Expand
Response and Habituation of the Human Amygdala during Visual Processing of Facial Expression
The human amygdala responds preferentially to emotionally valenced faces and rapidly habituates to them and is counterbalanced to happy versus neutral faces, suggesting a possible generalized response to emotions valenced stimuli. Expand
High resolution measurement of cerebral blood flow using intravascular tracer bolus passages. Part I: Mathematical approach and statistical analysis
Comparisons showed that a nonparametric deconvolution technique (singular value decomposition) allows estimation of flow relatively independent of underlying vascular structure and volume even at low signal‐to‐noise ratio associated with pixel‐by‐pixel deconvolved. Expand
Mr contrast due to intravascular magnetic susceptibility perturbations
A novel Monte Carlo model is developed with which the authors quantified the relationship between microscopic tissue parameters, NMR imaging parameters, and susceptibility contrast in vivo and demonstrated that spin echo functional images have greater microvascular sensitivity than gradient echo images, and that the specifics of the volume fraction and concentration dependence of transverse relaxivity change should allow for robust mapping of relative blood volume. Expand