نتایج جستجو برای: merzbacher
تعداد نتایج: 317 فیلتر نتایج به سال:
OBJECTIVE Recent studies have shown that dorsal premotor cortex (PMd), a cortical area in the dorsomedial grasp pathway, is involved in grasp movements. However, the neural ensemble firing property of PMd during grasp movements and the extent to which it can be used for grasp decoding are still unclear. APPROACH To address these issues, we used multielectrode arrays to record both spike and l...
Two high-PMD long distance routes were characterized and used to test an optical polarization mode dispersion compensator (PMDC) under field conditions. For this trial, 110 km routes with mean PMD values of 25 and 26.5 ps were provisioned with commercial WDM transport equipment and tested for several weeks. The route was comprised of three spans of characterized fiber that followed railroad tra...
Primate electrophysiological and lesion studies indicate a prominent role of the left dorsal premotor cortex (PMd) in action selection based on learned sensorimotor associations. Here we applied transcranial magnetic stimulation (TMS) to human left PMd at low or high intensity while right-handed individuals performed externally paced sequential key presses with their left hand. Movements were c...
Previous studies from our laboratory have documented that the medial hypothalamic defensive system is critically involved in processing actual and contextual predatory threats, and that the dorsal premammillary nucleus (PMd) represents the hypothalamic site most responsive to predatory threats. Anatomical findings suggest that the PMd is in a position to modulate memory processing through a pro...
Of the various types of demyelinating disorder, Pelizaeus-Merzbacher disease (Pelizaeus, 1885; Merzbacher, 1910) is probably the rarest and least understood form. For while its genetic, clinical, and patho-anatomical features have been fairly well delineated, the underlying biochemical disturbance thus far has been only incompletely analysed. Consequently the pathogenesis of the disorder has re...
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