Update on MRI findings of antipsychotics effect on brain structureAgartz, I
"Increasingly we are finding evidence that exposure to childhood adversity has a negative effect on brain development," says Sheridan. "The implications are wide ranging, not just for institutionalized children but also for children exposed to abuse, abandonment, violence during war,extreme povertyand ...
and progesterone may counteract the benefit of estradiol’s cognitive enhancing effect64,65,66. We note, however, that although most hormone replacement therapy studies suggest that estrogen replacement has a beneficial effect on cognition, literature...
Functional magnetic resonance imaging (fMRI) has become a powerful tool for investigating the working human brain based on the blood oxygenation level dependent (BOLD) effect on the MR signal. However, despite the widespread use of fMRI techniques for mapping brain activation, the basic physiological...
As a key oscillatory activity in the brain, thalamic spindle activities are long believed to support memory consolidation. However, their propagation characteristics and causal actions at systems level remain unclear. Using functional MRI (fMRI) and elec
and along the left cisternal trigeminal nerve into Meckel's cave. These are most consistent with multiple schwannomas. There is stable mass effect on the right cerebellum and brainstem, compression of the fourth ventricle, and prominence of the ventricular system. There is no acute hemorrhage, inf...
MRI Brain Image Segmentation based on Wavelet and FCM Algorithm Image segmentation plays a preliminary and indispensable step in medical image processing. Magnetic resonance (MR) segmentation used for brain tissues extraction white matter (WM), gray matter (GM) and cerebrospinal fluids (CSF). These ...
typically less than 3 cm. Approximately 40% to 60% of these lesions demonstrate calcification. They do not demonstrate mass effect, unless there has been recent hemorrhage. It is important to note that the adjacent brain parenchyma appears nor...
中华医学会放射学分会常务委员兼神经学组组长、北京医学会放射学分会副主任委员、国家卫生健康委脑卒中防治工程委员会神经影像专业委员会主任委员、中国医学影像技术研究会副会长等;《中国医学影像学杂志》主编、《Investigative Radiology》《中...
效果量,英文名为effectsize。假设对两组数据的均数差异进行统计推断,会得到统计值T值和P值,如果P<0.05,那么就说该差异显著。问题是这样的显著性差异在实际中有没有用?统计推断会受样本影响。比如调查男女身高的差异,在重庆收集了一批样本,发现男性身高显著高于女性。那么这种结论能否推广到其它城市?显然不能。统计推...