NDLI: Reaching Within a Dynamic Virtual Environment

Content Provider	IEEE Xplore Digital Library
Author	Dvorkin, A.Y. Kenyon, R.V. Keshner, E.A.
Copyright Year	2006
Description	Author affiliation: Sensory Motor Performance Program, Rehabilitation Inst. of Chicago, IL (Dvorkin, A.Y.)
Abstract	Planning and execution of reaching movements requires a series of computational processes that involves the localization of both the target and initial arm position, and the translation of this spatial information into appropriate motor commands that will bring the hand to the target. Voluntary and/or involuntary changes in the spatial relationship between our hand and the space in which we plan to reach may occur at any time. In the current study we investigated the effects of shifting both the central and peripheral visual field on visuomotor control using a virtual visual environment. In two separate experiments, six seated healthy subjects were exposed to either stationary or roll motion of a 3D virtual scene while reaching for a visual target that remained stationary in space or unexpectedly shifted to a second position with different inter-stimulus intervals. Our initial results suggest that both temporal and spatial aspects of the reaching movement were affected by roll of the visual field. Whereas the results indicate that subjects were able to amend their ongoing motion to match the target position with both scene conditions, the presence of peripheral visual field motion produced significantly longer pauses during the reach movement when the target shifted in space. We conclude from this that motion in the peripheral field of view interfered with the ability to simultaneously process two consecutive stimuli. The terminal arm posture also exhibited a drift in the direction opposite to the roll motion suggesting that subjects were compensating for a perceived change in their visual reference frame
Sponsorship	IEEE EMB
Starting Page	182
Ending Page	186
File Size	352290
Page Count	5
File Format	PDF
ISBN	1424402808
DOI	10.1109/IWVR.2006.1707550
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motor drives Virtual environment Layout Central nervous system Electronic mail Probes Space stations Monitoring Testing Centralized control
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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