Albert A. Rizzo

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Virtual reality exposure therapy (VRET) is an increasingly common treatment for anxiety and specific phobias. Lacking is a quantitative meta-analysis that enhances understanding of the variability and clinical significance of anxiety reduction outcomes after VRET. Searches of electronic databases yielded 52 studies, and of these, 21 studies (300 subjects)(More)
The Flexible Action and Articulated Skeleton Toolkit (FAAST) is middleware to facilitate integration of full-body control with virtual reality applications and video games using OpenNI-compliant depth sensors (currently the PrimeSensor and the Microsoft Kinect). FAAST incorporates a VRPN server for streaming the user’s skeleton joints over a network, which(More)
Virtual reality (VR) technology offers new opportunities for the development of innovative neuropsychological assessment and rehabilitation tools. VR-based testing and training scenarios that would be difficult, if not impossible, to deliver using conventional neuropsychological methods are now being developed that take advantage of the assets available(More)
VR offers the potential to develop human testing and training environments that allow for the precise control of complex stimulus presentations in which human cognitive and functional performance can be accurately assessed and rehabilitated. However, basic feasibility issues need to be addressed in order for this technology to be reasonably and efficiently(More)
OBJECTIVE To provide exploratory analyses of associations between levels of several sex hormones and cognitive performance in elderly women. BACKGROUND Sex steroid hormones are implicated in the cognitive processes of the adult brain. Comparing cognitive performance across or between conditions associated with different hormone levels, such as phases of(More)
Posttraumatic stress disorder (PTSD) has been estimated to affect up to 18% of returning Operation Iraqi Freedom (OIF) veterans. Soldiers need to maintain constant vigilance to deal with unpredictable threats, and an unprecedented number of soldiers are surviving serious wounds. These risk factors are significant for development of PTSD; therefore, early(More)
Recent research has established the potential for virtual characters to act as virtual standardized patients VP for the assessment and training of novice clinicians. We hypothesize that the responses of a VP simulating Post Traumatic Stress Disorder (PTSD) in an adolescent female could elicit a number of diagnostic mental health specific questions (from(More)
Virtual Reality technology offers new options for the study, assessment, and rehabilitation of cognitive/functional processes. This paper describes the initiation of a research program aimed at developing a virtual “classroom” for the assessment of ADHD. The system uses a head mounted display, head, hand, and leg tracking, and is laptop deliverable. The(More)
Treatment and rehabilitation of the cognitive, psychological, and motor sequelae of central nervous system dysfunction often relies on assessment instruments to inform diagnosis and to track changes in clinical status. Typically, these assessments employ paper-and-pencil psychometrics, hands-on analog/computer tests, and rating of behavior within the(More)
Modern virtual agents require knowledge about their environment, the interaction itself, and their interlocutors’ behavior in order to be able to show appropriate nonverbal behavior as well as to adapt dialog policies accordingly. Recent achievements in the area of automatic behavior recognition and understanding can provide information about the(More)