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The brain structure mismatch between western and eastern people may lead to an inappropriate interpretation of neurocognitive studies. To minimize this interracial misinterpretation, we developed the National Taiwan University Chinese Brain Template (NTU-CBT). 102 (M/F=55/47) healthy Chinese subjects were recruited and received 3T MR brain scans. The template development processes were based on the...
This study explores the electroencephalographic (EEG) correlates of emotions during music listening. Principal component analysis (PCA) is used to correlate EEG features with complex music appreciation. This study also applies machine-learning algorithms to demonstrate the feasibility of classifying EEG dynamics in four subjectively-reported emotional states. The high classification accuracy (81.58plusmn3...
Since different meditation methods may activate different regions in brain. In this study we chose a basic meditation type that just practiced the breath with the phrase that contained nine words, and the first word was matched with inhaling and following the next with exhaling alternately during the meditation period. Blood-oxygenation-level-dependent (BOLD) based fMRI were used to examine the brain...
Here we demonstrate a novel Chinese MRI brain template constructed by our brain template construction software. The difference between the averaged Chinese brain and the widely used MNI template were shown quantitatively. These apparent variations point out the imprecision that might cause using SPM based western brain template on Chinese cognitive science research. This novel Chinese brain template...
This study introduced a localized approach for magnetic resonance microscopy (MRM) of adult zebrafish brain on our 3T MRI system. A micro-fabricated single-channel radiofrequency (RF) receiver coil was designed by using electromagnetic simulation. Using transmit-only and receive-only (TORO) configuration, receive-only surface coil can achieve high signal-to-noise ratio (SNR) at localized brain regions...
Recently developed methods to resolve multiple fiber orientations within a voxel from high angular resolution diffusion imaging (HARDI) are applied to resolve complex neuronal connectivity. In the study, an extension of multiple streamline tractography was proposed to estimate the probabilistic fiber tracking between brain areas. Multi-fiber component in the conjunction of corticospinal tracts, corpus...
Electrophysiological and fMRI recording methods have been used independently to study neural functions. Electrophysiological method has high temporal resolution and fMRI has good spatial views. It would be very helpful if both methods can be utilized on the same animal, preferably simultaneously. However, fMRI use rapidly changing gradient fields and RF pulses, it causes very strong interference in...
Diffusion MRI is a technique that can probe diffusivity of water molecules in brain structure non-invasively and so that it presents complex neuronal orientation by discrete ribbons. In the study, a new tractography algorithm for high angular resolution diffusion imaging was developed to connect the discrete neural orientations and to extract sophisticated neuronal connectivity in human brain. By...
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