The investments are promising but won’t fix the primate shortage, experts say.

The effects of a calcium antagonist, nimodipine, were tested on the response of the cerebral circulation to arterial pCO2 and blood pressure changes. The effects of reduced blood flow upon oedema formation and extracellular ion homeostasis under nimodipine preloading were studied. Both open and closed skull primate models were used, with alpha-chloralose anaesthesia. Nimodipine infusion increas...

this study aimed at determining the chronic and acute effect of submaximal pedaling activity along with blood flow restriction on serum bdnf, tnf-α and bdnf/tnf-α ratio in active men. 24 physical education students at kharazmi university volunteered for the study. they were divided into three groups: pedaling with lower extremity vascular occlusion (n=8), pedaling without occlusion (n=8), and c...

We present a biologically-inspired system for real-time, feed-forward object recognition in cluttered scenes. Our system utilizes a vocabulary of very sparse features that are shared between and within different object models. To detect objects in a novel scene, these features are located in the image, and each detected feature votes for all objects that are consistent with its presence. Due to...

The part-based method has been a fast rising framework for object detection. It is attracting more and more attention for its detection precision and partial robustness to the occlusion. However, little research has been focused on the problem of occlusion overlapping of the part regions, which can reduce the performance of the system. This paper proposes a part-based probabilistic model and th...

Perception in the visual cortex and dorsal stream of the primate brain includes important visual competencies, such as: a consistent representation of visual space despite eye movement; egocentric spatial perception; attentional gaze deployment; and, coordinated stereo fixation upon dynamic objects. These competencies have emerged commensurate with observation of the real world, and constitute ...

The basic cognitive architecture of the human brain remains unknown. However, there is evidence for the existence of distinct behavioral control systems shared by humans and nonhumans; and there is further evidence pointing to distinct higher-level problem solving systems shared by humans and other primates. To clarify the nature of these proposed systems and examine how they may interact in th...

The primate vision system exhibits numerous capabilities. Some important basic visual competencies include: 1) a consistent representation of visual space across eye movements; 2) egocentric spatial perception; 3) coordinated stereo fixation upon and pursuit of dynamic objects; and, 4) attentional gaze deployment. We present a synthetic vision system that incorporates these competencies. We hyp...

The collective representation of visual space in high resolution visual pathways was explored by simultaneously measuring the receptive fields of hundreds of ON and OFF midget and parasol ganglion cells in isolated primate retina. As expected, the receptive fields of all four cell types formed regular mosaics uniformly tiling the visual scene. Surprisingly, comparison of all four mosaics reveal...