The target article does not consider neural data on primate spatial representations, which we suggest provide grounds for believing that navigational space may be three-dimensional rather than quasi-two-dimensional. Furthermore, we question the authors' interpretation of rat neurophysiological data as indicating that the vertical dimension may be encoded in a neural structure separate from the ...

The use of non-human primates provides an excellent translational model for our understanding of developmental and aging processes in humans(1-6). In addition, the use of non-human primates has recently afforded the opportunity to naturally model complex psychiatric disorders such as alcohol abuse(7). Here we describe a technique for blocking the brain in the coronal plane of the vervet monkey ...

This thesis describes different aspects of occlusion culling algorithms for the efficient rendering of 3D scenes with rasterization hardware. Scene graphs are used as data structures for the scenes to support a wide range of different applications. All presented algorithms permit modifications of the graphs at runtime and therefore the algorithms are suitable for dynamic scenes. The thesis cons...

In order to analyze the functions of the hippocampus in the primate, and to advance the understanding of amnesia, the activity of 994 single hippocampal neurons in the monkey was analyzed during the performance of a task known to be affected by hippocampal damage in which both an object, and its position in space, must be remembered. The serial multiple object-place memory task required a memor...

statement of problem: due to the appearance of palatal height difference in orthodontic patients we decided to carry out this study. purpose: the purpose of this research was to determine palatal height in persons with normal occlusion and different malocclusions (class i, ii div i and iii) and comparing them with each other. materials and methods: in this cross sectional research, 240 subjects...

Image space occlusion culling is an useful approach to reduce the rendering load of large polygonal models. Like most large model techniques, it trades overhead costs with the rendering costs of the possibly occluded geometry. Meanwhile, modern graphics hardware supports occlusion culling. Unfortunately these hardware extensions consume fillrate and latency costs. In this paper, we propose a ne...

recently multiple studies have shown that elevated homocysteine levels may be associated with ophthalmic vascular disease. to investigate the role of high plasma levels of homocysteine in the patients with retinal vein occlusion, 21 patients with retinal vein occlusion (rvo) and 20 age and sex matched controls without rvo were included in this retrospective case–control study. information regar...