cognition functional brain imaging and virtual reality

... Displays and Virtual Reality Systems 2000, 3957:90-101 Konrad J: Enhancement of viewer comfort in stereoscopic viewing: parallax adjustment Proc SPIE Stereoscopic Displays and Virtual Reality ... Figure Pre- and2 post-training data of MVC Pre- and post-training data of MVC White and black graphs show pre-test MVC values for the S&B and S groups during slow (10 deg/s, left) and fast (35 ... no risk of a fall and minimal risk of injury Allowing such patients to stand and/ or walk independ- Page of (page number not for citation purposes) Journal of NeuroEngineering and Rehabilitation...

Ngày tải lên: 19/06/2014, 10:20

... BJ, Feldman AG: Reaching in reality and in virtual reality: A comparison of movement kinematics [abstract] ISEK, Boston 2004 Gowland C, Stratford P, Ward M, Moreland J, Torresin W, Van Hullenaar ... subject's manubrium (Figure 1) The virtual representation of the subject's hand was Figure Experimental set-up Experimental set-up Physical (a) and virtual reality condition (b) Page of (page ... divided in two phases: 1) reaching and grasping the ball and 2) ball transport and release For the first movement phase, temporal and spatial parameters of reaching and grasping were determined Temporal...

Ngày tải lên: 19/06/2014, 10:20

... Zheng, X Zhang, and L.-P Nolte 294 XII Table of Contents Surgical Navigation and Augmented Reality An Augmented Reality & Virtuality Interface for a Puncture Guidance System: Design and Validation ... surface and integrated within the virtual planning and guidance environment Towards a Virtual Cardiac Model Effective image guidance for these surgical procedures is challenging and demands a ... patient and virtual model Integration of registered intra-cardiac and intra-thoracic ultrasound Tracking of tools and modeling them within virtual environment 4.1 Dynamic Cardiac Model Dynamic imaging...

Ngày tải lên: 06/12/2015, 06:51

... O_R and IM_L (RH p < 0.001), O_L and IM_L (RH p = < 0.001) and IM_R and IM_L (RH p < 0.001); analog for Δ[HHb] between-conditions O_R and IM_L (RH p < 0.001), O_L and IM_L (RH p = < 0.001) and ... representing brain: Neural correlates of motor intention and imagery Behav Brain Res 1994, 17:187-245 Rizzolatti G, et al: Premotor cortex and the recognition of motor actions Brain Res Cogn Brain Res ... University of Zurich and ETH Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland 3Molecular Imaging and Functional Pharmacology, Institute for Biomedical Engineering, ETH and University of...

Ngày tải lên: 19/06/2014, 08:20

... Sharifzadeh M: Virtual environments for the assessment of attention and memory processes: The virtual classroom and office In Proceedings of the International Conference on Disability, Virtual Reality ... after traumatic brain injury Arch Phys Med Rehabil 1998, 79:888-892 Grealy MA, Johnson DA, Rushton SK: Improving cognitive function after brain injury: The use of exercise and virtual reality Arch ... Johansson G: Three applications of virtual reality for brain injury rehabilitation of daily tasks In Proceedings of the 4th International Conference on Disability, Virtual Reality & Associated Technology...

Ngày tải lên: 19/06/2014, 08:20

... a functional magnetic resonance imaging scanner they measured pain-related brain activity for each participant during conditions of virtual reality and without virtual reality in an order randomized ... physical and virtual worlds: Interreality uses bio and activity sensors and devices (PDAs, mobile phones, etc) both to track in real time the behavior and the health status of the user and to provide ... actions and their effects are stored in a common representational domain In simpler words, the brain has its own virtual reality system that is used in both action planning and action understanding...

Ngày tải lên: 23/03/2014, 15:20

... within which virtual reality has been developed affects our understanding of it It shapes the way we approach the use of virtual reality as a medium and as a system 8 Virtual Reality and the Built ... using virtual reality as a medium is to better understand the built environment as a product and to gain insight into the processes of its construction and operation Virtual reality systems Virtual ... discuss the use of virtual reality as an image and as a prototype For organizations looking to use virtual reality, the way that different groups of staff interpret and use virtual reality affects...

Ngày tải lên: 29/04/2014, 15:46

... physical world Therefore, to understand the transfer of performance between the virtual and the physical world, stroke patients and controls performed physical and virtual versions of a calibration ... PTM and the study of transfer between physical and virtual tasks two new groups of controls and patients were enrolled 10 control subjects (8 males and females, mean age 28.6 ± 3.6 years) and ... with M = male and F = female, lesion side with L = left and R = right, and type of stroke with I = ischemic and H = hemorrhagic The descriptive statistics show the mean and the standard deviation...

Ngày tải lên: 19/06/2014, 08:20

... for assessing functional cognitive skills in patients with neurological injuries: the virtual street Brain Inj 2005, 19(5):315-22 27 Rose FD, Brooks BM, Rizzo A: Virtual reality in brain damage ... both reliability and ecological validity requirements, is represented by Virtual Reality (VR) technology VR offers both realness and experimental control, providing a high dynamic and interactive ... lesion and neuroimaging findings Scand J of Psychol 2001, 42:225-238 13 Epstein RA, Parker WE, Feiler AM: Where am I now? Distinct roles for parahippocampal and retrosplenial cortices in place recognition...

Ngày tải lên: 19/06/2014, 08:20

... with physical and virtual objects by healthy adults and those with hemiparesis Sveistrup presents current work on motor rehabilitation using virtual environments and virtual reality and, where possible, ... research and rehabilitation Assist Technol 2004, 16:54-62 Sherman W, Craig A: Understanding virtual reality: Interface, application, and design California: Morgan Kaufmann; 2002 Stanney KM: Handbook ... the field of virtual rehabilitation and therapy Presence: Teleoperators and Virtual Environments in press Rizzo AA, Schultheis MT, Kerns K, Mateer C: Analysis of assets for virtual reality applications...

Ngày tải lên: 19/06/2014, 10:20

... Further, using functional magnetic resonance imaging (fMRI) scanner they measured pain-related brain activity for each participant during conditions of no virtual reality and during virtual reality ... engagement and flow in the virtual reality, and increased their self-competence and self-efficacy Further, they experienced a sense of control and mastery over the virtual environment and perceived ... Villamira MA: Immersive Virtual Telepresence: Virtual Reality meets mHealth In Cybertherapy: Internet and Virtual Reality as Assessment and Rehabilitation Tools for Clinical Psychology and Neuroscience...

Ngày tải lên: 19/06/2014, 10:20

... virtual environment and the nature and demands of the task to be performed within the virtual environment It is during the interaction process that sensations and perceptions related to the virtual ... M: Virtual environment for the assessment of attention and memory processes: the virtual classroom and office Proceeding of the 4th International Conference on Disability, Virtual Reality and ... between motor and cognitive abilities and performance within virtual environments for patients with stroke Proceedings of the Fifth International Conference on Disability, Virtual Reality and Associated...

Ngày tải lên: 19/06/2014, 10:20

... UE; and 5) voluntary movement control to perform the VR tasks Table includes demographic details for Subjects 102 (severe impairment) and 103 (moderate impairment) Virtual Reality System and ... measure Functional ability was evaluated with the Functional Test of the Hemiparetic UE (FTHUE) [13] where the individual completes progressively more difficult functional tasks and the Box and Block ... position A "virtual hand" corresponds to the location and movement of the paretic hand via a magnetic marker placed either in the palmar surface of a glove or directly onto the dorsum of the hand at...

Ngày tải lên: 19/06/2014, 10:20

... the brain The trigger factors have a short time scale and are related to display devices and video images, and sensory and cognitive systems The accumulation factor has a long time scale and ... voluntary and electrically elicited contractions J Appl Physiol 1990, 69:1810-1820 Kiryu T, Iijima A, Bando T: Relationships between sensory stimuli and autonomic regulation during real and virtual ... with trigger factors and accumulation factor (adapted from [7]) Measurement and Evaluation of Biosignals associated with Presence and Cybersickness Mismatch between the visual and vestibular systems...

Ngày tải lên: 19/06/2014, 10:20

... sensors and computer vision for augmented reality, ” Presence: Teleoperators and Virtual Environments, vol 11, no 5, pp 474–492, 2002 J.-R Wu and M Ouhyoung, “A 3D tracking experiment on latency and ... technology, and real-time applications for virtual reality Currently, he is finishing his Ph.D thesis on “Binaural Technology for Virtual Reality. ” He is a Member of the Audio Engineering Society (AES) and ... van Dam, S K Feiner, and J F Hughes, Computer Graphics, Principles and Practice, Addison Wesley, Reading, Mass, USA, 2nd edition, 1996 R Shumacker, R Brand, M Gilliland, and W Sharp, “Study for...

Ngày tải lên: 22/06/2014, 23:20

... Some Virtual Reality Tools and Resources 21 Moses Okechukwu Onyesolu, Ignatius Ezeani and Obikwelu Raphael Okonkwo Chapter Training of Procedural Tasks Through the Use of Virtual Reality and Direct ... fields: virtual reality tools, virtual reality in education and rehabilitation and ergonomic design The chapters selected for this volume offer new perspectives in terms, tested practices and solutions ... describes and evaluates the current state-of-the-art in the virtual reality field It also presents several applications of Virtual Reality in the field of Immersive and non-Immersive Virtual Environments,...

Ngày tải lên: 27/06/2014, 00:20

... Aigbirhio F, et al.: Imaging of cerebral blood flow and metabolism in brain injury in the ICU Acta Neurochir Suppl 2005, 95:459-464 Azouvi P: Neuroimaging correlates of cognitive and functional outcome ... following stages: stage 1, frontal and temporal white matter; stage 2, lobar white matter and posterior part of corpus callosum; and stage 3, dorsolateral midbrain and pons With outcomes defined ... days) Characteristics Brain swelling Brain swelling Absence of brain swelling Diffuse atrophy and dilatation of the ventricles DWI Hypersignals in the cortex, in the thalamus and in the basal ganglia...

Ngày tải lên: 13/08/2014, 08:20

... cerebral veins and sinous The veins of the brain have no muscular tissue in their thin walls and possess no valves as compared to other types of veins They emerge from the brain and lie in the ... thrombosis Advantages of magnetic resonance imaging are it can survey the blood flow and allow us to see the direct imaging of the venous sinous thrombosis and brain parenchymal injuries 1.3.4 D-dimer ... magnetic resonance imaging in combination with magnetic resonance imaging of vein and/ or routine magnetic imaging in combination with computerized tomography of cerebral vein and/ or cerebral angiography...

Ngày tải lên: 21/10/2014, 21:52

... functions and so on As the brain is very important yet vulnerable, brain disorders warrant utmost care and treatment Magnetic resonance imaging (MRI), often divided into structural MRI and functional ... functions While the functional connectivity of the brain in the early childhood is not clear but very important for our understanding of the normal brain development and functional changes in ... chapters are organized as follows Chapter describes brain anatomy and introduces some background information related to brain imaging and imaging analysis that shall be used in the rest of the...

Ngày tải lên: 09/09/2015, 18:53