The Experts below are selected from a list of 219 Experts worldwide ranked by ideXlab platform
Eric Guedj - One of the best experts on this subject based on the ideXlab platform.
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brain metabolism and related connectivity in patients with acrophobia treated by virtual Reality Therapy an 18 f fdg pet pilot study sensitized by virtual exposure
EJNMMI research, 2018Co-Authors: Antoine Verger, Eric Malbos, Emmanuelle Reynaud, Pierre Mallet, Daniel Mestre, Jean-marie Pergandi, Stephanie Khalfa, Eric GuedjAbstract:The aim of this pilot study is to investigate the impact of virtual Reality exposure Therapy (VRET) on brain metabolism and connectivity. Eighteen patients with acrophobia were assessed by an 18F-FDG PET scan sensitized by virtual exposure before treatment, and nine of them were assessed again after eight sessions of VRET. Statistical Parametric Mapping was used to study the correlations between metabolism and pretherapeutic clinical scores and to compare metabolism before and after VRET (p voxel < 0.005, corrected for cluster volume). Metabolic connectivity was evaluated through interregional correlation analysis. Before Therapy, a positive correlation was found between scores on the behavioural avoidance test and left occipital metabolism (BA17-18). After VRET, patients presented increased metabolism in the left frontal superior gyri and the left precentral gyrus, which showed increased metabolic connectivity with bilateral occipital areas (BA17-18-19), concomitant with clinical recovery. This study highlights the exciting opportunity to use brain PET imaging to investigate metabolism during virtual exposure and reports the involvement of the visual-motor control system in the treatment of acrophobia by VRET.
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Brain metabolism and related connectivity in patients with acrophobia treated by virtual Reality Therapy: an 18F-FDG PET pilot study sensitized by virtual exposure
SpringerOpen, 2018Co-Authors: Antoine Verger, Eric Malbos, Emmanuelle Reynaud, Pierre Mallet, Daniel Mestre, Jean-marie Pergandi, Stephanie Khalfa, Eric GuedjAbstract:Abstract Background The aim of this pilot study is to investigate the impact of virtual Reality exposure Therapy (VRET) on brain metabolism and connectivity. Eighteen patients with acrophobia were assessed by an 18F-FDG PET scan sensitized by virtual exposure before treatment, and nine of them were assessed again after eight sessions of VRET. Statistical Parametric Mapping was used to study the correlations between metabolism and pretherapeutic clinical scores and to compare metabolism before and after VRET (p voxel
Antoine Verger - One of the best experts on this subject based on the ideXlab platform.
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brain metabolism and related connectivity in patients with acrophobia treated by virtual Reality Therapy an 18 f fdg pet pilot study sensitized by virtual exposure
EJNMMI research, 2018Co-Authors: Antoine Verger, Eric Malbos, Emmanuelle Reynaud, Pierre Mallet, Daniel Mestre, Jean-marie Pergandi, Stephanie Khalfa, Eric GuedjAbstract:The aim of this pilot study is to investigate the impact of virtual Reality exposure Therapy (VRET) on brain metabolism and connectivity. Eighteen patients with acrophobia were assessed by an 18F-FDG PET scan sensitized by virtual exposure before treatment, and nine of them were assessed again after eight sessions of VRET. Statistical Parametric Mapping was used to study the correlations between metabolism and pretherapeutic clinical scores and to compare metabolism before and after VRET (p voxel < 0.005, corrected for cluster volume). Metabolic connectivity was evaluated through interregional correlation analysis. Before Therapy, a positive correlation was found between scores on the behavioural avoidance test and left occipital metabolism (BA17-18). After VRET, patients presented increased metabolism in the left frontal superior gyri and the left precentral gyrus, which showed increased metabolic connectivity with bilateral occipital areas (BA17-18-19), concomitant with clinical recovery. This study highlights the exciting opportunity to use brain PET imaging to investigate metabolism during virtual exposure and reports the involvement of the visual-motor control system in the treatment of acrophobia by VRET.
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Brain metabolism and related connectivity in patients with acrophobia treated by virtual Reality Therapy: an 18F-FDG PET pilot study sensitized by virtual exposure
SpringerOpen, 2018Co-Authors: Antoine Verger, Eric Malbos, Emmanuelle Reynaud, Pierre Mallet, Daniel Mestre, Jean-marie Pergandi, Stephanie Khalfa, Eric GuedjAbstract:Abstract Background The aim of this pilot study is to investigate the impact of virtual Reality exposure Therapy (VRET) on brain metabolism and connectivity. Eighteen patients with acrophobia were assessed by an 18F-FDG PET scan sensitized by virtual exposure before treatment, and nine of them were assessed again after eight sessions of VRET. Statistical Parametric Mapping was used to study the correlations between metabolism and pretherapeutic clinical scores and to compare metabolism before and after VRET (p voxel
Maarten G Lansberg - One of the best experts on this subject based on the ideXlab platform.
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home based virtual Reality Therapy for hand recovery after stroke
Pm&r, 2021Co-Authors: Maarten G Lansberg, Catherine Legault, Adam Maclellan, Alay Parikh, Julie Muccini, Michael Mlynash, Stephanie Kemp, Marion S Buckwalter, Kara FlavinAbstract:BACKGROUND Many stroke survivors experience arm and hand weakness, but there are only limited efficacious options for arm Therapy available. OBJECTIVE To assess the feasibility of unsupervised home-based use of a virtual Reality device (Smart Glove) for hand rehabilitation post stroke. DESIGN Prospective single-arm study consisting of a 2-week run-in phase with no device use followed by an 8-week intervention period. SETTING Participants were recruited at the Stanford Neuroscience Outpatient Clinic. PARTICIPANTS Twenty chronic stroke patients with upper extremity impairment. INTERVENTIONS Participants were instructed to use the Smart Glove 50 minutes per day, 5 days per week for 8 weeks. MAIN OUTCOME MEASURES The following outcomes were measured: (1) compliance, (2) patients' impression of the intervention, and (3) efficacy using the upper extremity Fugl-Meyer (UE-FM), the Jebsen-Taylor hand function test (JTHFT), and the Stroke Impact Scale (SIS). RESULTS Of 20 participants, seven (35%) met target compliance of 40 days use, and six (30%) used the device for 20-39 days. Eighty-five percent of participants were satisfied with the Therapy, with 80% reporting improvement in hand function. During the run-in phase there were no improvements in hand function. During the intervention, patients improved by a mean of 26.6 ± 48.8 seconds on the JTHFT (P = .03), by 16.1 ± 15.3 points on the hand-domain of the SIS (P < .01) and there was a trend toward improvement on the UE-FM (2.2 ± 5.5 points, P = .10). CONCLUSIONS Unsupervised use of the Smart Glove in the home environment may improve hand/arm function in subacute/chronic stroke patients. A randomized controlled trial is needed to confirm these results.
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abstract wp205 home based virtual Reality Therapy for hand recovery after stroke
Stroke, 2020Co-Authors: Adam Maclellan, Catherine Legault, Alay Parikh, Michael Mlynash, Stephanie Kemp, Marion S Buckwalter, Kara Flavin, Leonel Lugo, Maarten G LansbergAbstract:Background: Stroke is the leading cause of disability worldwide, with many stroke survivors having persistent upper limb functional impairment. Aside from therapist-directed rehabilitation, few eff...
M.m. North - One of the best experts on this subject based on the ideXlab platform.
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brief virtual Reality Therapy for public speaking anxiety
Cyberpsychology Behavior and Social Networking, 2002Co-Authors: Sandra R Harris, Robert L Kemmerling, M.m. NorthAbstract:The primary goal of this research program was to investigate the effectiveness of virtual Reality Therapy (VRT) in reducing public speaking anxiety of university students. The prevalence and impact of public speaking anxiety as a type of Social Phobia are discussed. Studies of VRT as an emerging treatment for psychological problems are reviewed. In the present study, eight students completed VRT individual treatment and post-testing, and six students in a Wait-List control group completed post-testing. Assessment measures included four selfreport inventories, self-report of Subjective Units of Discomfort during exposure to VRT and physiological measurements of heart rate during speaking tasks. Four weekly individual exposure treatment sessions of approximately 15 min each were conducted by the author serving as therapist. Results on self-report and physiological measures appear to indicate that four virtual Reality treatment sessions were effective in reducing public speaking anxiety in university student...
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Virtual Reality Therapy: an effective treatment for psychological disorders.
Studies in Health Technology and Informatics, 1997Co-Authors: Max North, Sarah North, M.m. North, Joseph Coble, Sarah M North, Joseph R. CobleAbstract:Behavioral Therapy techniques for treating phobias often includes graded exposure of the patient to anxiety-producing stimuli (Systematic Desensitization). However, in utilizing systematic desensitization, research reviews demonstrate that many patients appear to have difficulty imaging the prescribed anxiety-evoking scene. They also express strong aversion to experiencing real situations. This chapter describes the Virtual Reality Therapy (VRT), a new therapeutical approach that can be used to overcome some of the difficulties inherent in the traditional treatment of phobias. VRT, like current imaginal and in vivo modalities, can generate stimuli that could be utilized in desensitization Therapy. Like systematic desensitization Therapy, VRT can provide stimuli for patients who have difficulty in imagining scenes and/or are too phobic to experience real situations. Unlike in vivo systematic desensitization, VRT can be performed within the privacy of a room, thus avoiding public embarrassment and violation of patient confidentiality. VRT can generate stimuli of much greater magnitude than standard in vivo techniques. Since VRT is under patient control, it appears safer than in vivo desensitization and at the same time more realistic than imaginal desensitization. Finally, VRT adds the advantage of greater efficiency and economy in delivering the equivalent of in vivo systematic desensitization within the therapist's office. The chapter also describes how to use virtual Reality in the treatment of specific phobias: fear of flying, fear of heights, fear of being in certain situations (such as a dark barn, an enclosed bridge over a river, and in the presence of an animal [a black cat] in a dark room), and fear of public speaking.
Min Ho Chun - One of the best experts on this subject based on the ideXlab platform.
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combination transcranial direct current stimulation and virtual Reality Therapy for upper extremity training in patients with subacute stroke
Archives of Physical Medicine and Rehabilitation, 2014Co-Authors: Sook Joung Lee, Min Ho ChunAbstract:Abstract Objective To investigate the effects of combination cathodal transcranial direct current stimulation (tDCS) and virtual Reality (VR) Therapy for upper extremity (UE) training in patients with subacute stroke. Design Pilot randomized controlled trial. Patients were randomly assigned to 1 of 3 groups: group A received cathodal tDCS, group B received VR, and group C received combination Therapy (cathodal tDCS was simultaneously applied during VR Therapy). Setting University hospital. Participants Patients (N=59) with impaired unilateral UE motor function after stroke. Intervention Fifteen sessions of treatment over a 3-week period. Main Outcome Measures The Modified Ashworth Scale, manual muscle test (MMT), Manual Function Test (MFT), Fugl-Meyer Scale (FMS), and Box and Block Test were used to assess UE function. To evaluate activities of daily living, the Korean-Modified Barthel Index (K-MBI) was used. All outcomes were measured before and immediately after treatment. Results After treatment, all groups demonstrated significant improvements in MMT, MFT, FMS, and K-MBI scores. The change in MFT and FMS scores was different between the 3 groups. Post hoc analysis revealed that the improvement of MFT and FMS scores in group C was significantly higher than those of the other 2 groups. Conclusions In the present pilot study, the combination of brain stimulation using tDCS and peripheral arm training using VR could facilitate a stronger beneficial effect on UE impairment than using each intervention alone. This combination Therapy might be a helpful method to enhance recovery of the paretic UE in patients with stroke.
