Comparison of grasping movements made by healthy subjects in a 3-dimensional immersive virtual versus physical environment

Magdalon, Eliane Cristina; Michaelsen, Stella Maris; Quevedo, Antônio Augusto Fasolo; Levin, Mindy F.

doi:10.1016/j.actpsy.2011.05.015

Cited by 71 publications

(84 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This has previously been reported for UL movements made in 2D, [8], [24] but see [5] and 3D-VEs [11], [12]. For example, unencumbered reaching movements in a 2D video-capture VE made by patients with chronic stroke as well as healthy control subjects were slower, shorter, less straight and less accurate compared to those made in a PE [8].…”

Section: A Effect Of the Environment On Reaching And Graspingmentioning

confidence: 49%

“…Full details of the experimental procedure are available elsewhere [12]. Briefly, subjects participated in a single session in which they reached and grasped 3 objects with their hemiparetic arm.…”

Section: B Experimental Proceduresmentioning

confidence: 99%

“…In our previous study, kinematics of grasping done in a 3D-VE and PE were compared in healthy subjects using a glove that enabled finger tracking and haptic feedback about object collision [12]. Similar hand orientation patterns, temporal grasping parameters and joint excursions were used in both environments when grasping three types of virtual and physical objects (can, screwdriver, pen).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Quality of Grasping and the Role of Haptics in a 3-D Immersive Virtual Reality Environment in Individuals With Stroke

Levin

Magdalon

Michaelsen

et al. 2015

IEEE Trans. Neural Syst. Rehabil. Eng.

Self Cite

View full text Add to dashboard Cite

Reaching and grasping parameters with and without haptic feedback were characterized in people with chronic post-stroke behaviors. Twelve (67 ± 10 years) individuals with chronic stroke and arm/hand paresis (Fugl-Meyer Assessment-Arm: ≥ 46/66 pts) participated. Three dimensional (3-D) temporal and spatial kinematics of reaching and grasping movements to three objects (can: cylindrical grasp; screwdriver: power grasp; pen: precision grasp) in a physical environment (PE) with and without additional haptic feedback and a 3-D virtual environment (VE) with haptic feedback were recorded. Participants reached, grasped and transported physical and virtual objects using similar movement strategies in all conditions. Reaches made in VE were less smooth and slower compared to the PE. Arm and trunk kinematics were similar in both environments and glove conditions. For grasping, stroke subjects preserved aperture scaling to object size but used wider hand apertures with longer delays between times to maximal reaching velocity and maximal grasping aperture. Wearing the glove decreased reaching velocity. Our results in a small group of subjects suggest that providing haptic information in the VE did not affect the validity of reaching and grasping movement. Small disparities in movement parameters between environments may be due to differences in perception of object distance in VE. Reach-to-grasp kinematics to smaller objects may be improved by better 3-D rendering. Comparable kinematics between environments and conditions is encouraging for the incorporation of high quality VEs in rehabilitation programs aimed at improving upper limb recovery.

show abstract

Section: A Effect Of the Environment On Reaching And Graspingmentioning

confidence: 49%

Section: B Experimental Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Quality of Grasping and the Role of Haptics in a 3-D Immersive Virtual Reality Environment in Individuals With Stroke

Levin

Magdalon

Michaelsen

et al. 2015

IEEE Trans. Neural Syst. Rehabil. Eng.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Delayed responses or slower movements have been observed in virtual environments (including in studies using HMD) as compared to physical environment in reaching tasks [15][16][17]. A delayed response could lead to larger CoP displacements and faster CoP adjustments in order to maintain balance.…”

Section: Discussionmentioning

confidence: 96%

“…Previous studies have compared virtual environments created by a multitude of virtual reality systems to the physical environment in pointing tasks in healthy adults, in individuals with stroke and in typically-developing children [3,[15][16][17]. Generally, slower and less precise movements were observed in virtual environments in comparison to physical environments.…”

Section: Introductionmentioning

confidence: 96%