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Computer-simulated virtual reality environments for evaluation of neurobehavioral performance

InactiveUS20050216243A1Increase and decrease difficultyStrong specificityMedical simulationTelemedicineTest performanceNervous system
A virtual reality (VR)-based test battery wherein various neurobehavioral performance skills, including motor skills, sensory-perceptual skills, attention, and decision-making can be measured in human subjects. The invention can be used as a screening method within a virtual environment to provide an overall measure of general brain function relating to behavioral ability. In addition, the invention provides comprehensive VR-based neurobehavioral examinations tailored to individual subjects which can automatically self-adjust during operation in accordance with the specific purpose of the assessment, or for forms of cognitive or physical rehabilitation. According to the invention, patients with neurological and psychiatric dysfunctions can be assessed with physiologic monitoring as well as with anatomical and functional neuroimaging to non-invasively map the functional neuroanatomic correlates of VR-based test performance. In a preferred embodiment, the VR-based neurobehavioral testing system is portable allowing computerized tests to be administered in a desk-top or lap-top configuration, or via the Internet for tele-assessment of human subjects who are physically inaccessible to the test administrator. In a particularly preferred embodiment, the method of the invention is used for vocational assessment and training, wherein individual test scores are combined into a final metric useful for assessing a candidate's qualifications for employment, or certification in a particular skill.
Owner:GRAHAM SIMON +3

Server monitoring virtual points of presence

A server monitoring system monitors the performance of a web site or other Internet server system, as seen by users in multiple geographic access locations, without the need for special monitoring software or hardware within such locations. Automated agents that run at a central data center generate message traffic that is used to access and monitor the server system from the multiple remote locations. The message traffic associated with a particular remote access location is transmitted from the data center to the remote location across a dedicated link, such as an ATM link, and is routed onto the Internet at a corresponding Internet access point. The server response to each request message flows back to the data center across the same link as the corresponding request message. The remote access points thus serve as virtual points of presence for monitoring purposes. Server response times as seen from the remote access locations are determined by measuring the total response times as observed from the data center, and deducting from the total response times the round-trip latencies associated with the corresponding dedicated links. The response times and other performance data generated by the agents are aggregated within a database that is local to the agents. Multiple data centers may be interconnected such that each data center services a particular continent or other region using a respective set of virtual points of presence.
Owner:MICRO FOCUS LLC
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