Chan Hong Moon

TL;DR: High-resolution imaging results demonstrate a reliable millimeters-scale orientation signal, likely emerging from irregular spatial arrangements of orientation columns and their supporting vasculature, and fMRI pattern analysis methods are thus likely to be sensitive to signals originating from other irregular columnar structures elsewhere in the brain.

TL;DR: It is shown that cerebral blood volume-weighted fMRI with a blood plasma contrast agent, in combination with continuous temporally encoded stimulation, can map columnar neuronal activity in the cat primary visual cortex with high sensitivity, selectivity, and reproducibility.

TL;DR: The results suggest that, unlike the expectation from deoxyhemoglobin-based optical imaging studies, the highest BOLD signals are localized to the sites of increased neural activity when column-nonselective signals are suppressed.

TL;DR: The authors have developed a fully automated segmentation program for knee cartilage from MR images and the performance of the program based on 50 test cases was highly promising.

TL;DR: The results suggest that the draining effect of pial and intracortical veins in dHb-based imaging techniques, such as blood oxygenation-level dependent (BOLD) functional MRI, is intrinsically unavoidable and reduces its spatial specificity of dHB signal regardless of whether the stimulus-induced blood supply is spatially specific.