NDLI: A multisensory illusion with haptic interaction to treat phantom limb pain

Content Provider	IEEE Xplore Digital Library
Author	Farrington, M.W. Gerling, G.J. Kohan, L.R. Johnson, S.L.
Copyright Year	2012
Description	Author affiliation: Pain Management Center, University of Virginia, Charlottesville, USA (Kohan, L.R.) \|\| Systems and Information Engineering, University of Virginia, Charlottesville, USA (Farrington, M.W.; Gerling, G.J.) \|\| Anesthesiology, University of Virginia, Charlottesville, USA (Johnson, S.L.)
Abstract	Phantom limb pain (PLP) is a chronic, intractable condition that affects over 2 million Americans. PLP has been treated by pharmaceuticals, and interventional treatments, as well as psychological strategies including sensory illusions. This work develops a theoretical framework to characterize prior instantiations of sensory illusions. Each instantiation is a particular treatment protocol that consists of three design elements: stimulus modality, volitional movement, and multisensory interaction. Utilizing this framework, we custom-built a haptics-enabled mirror visual feedback (MVF) sensory illusion. The device provides its amputee user with tactile and proprioceptive feedback, specifically the capability to interact with a 1 DOF haptic slider bar. In this way, we sought to incorporate additional sensory modalities into the illusion. In a case study with lower limb amputees (N=3), the realism of the device's seven illusions was evaluated. Preliminary results are that: 1) interaction with the haptic slider bar increased the amputee's sense of presence of the amputated limb, 2) one subject with intractable chronic PLP experienced relief that persisted during use of the device and reported tactile and proprioceptive sensation in the phantom limb, 3) forceful pressure against the slider bar produced asymmetric proprioceptive forces that interrupted the illusion, 4) the specific amputation site affected which illusions were most believable. These preliminary findings indicate that multi-sensory illusions may augment and enhance MVF instantiations, potentially improving the therapeutic value for a wider range of amputation cases.
Starting Page	217
Ending Page	222
File Size	24304194
Page Count	6
File Format	PDF
ISBN	9781467308083
e-ISBN	9781467308090
e-ISBN	9781467308076
DOI	10.1109/HAPTIC.2012.6183794
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-04
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phantoms Prosthetics Pain Mirrors Visualization Tracking Haptic interfaces mirror visual feedback Phantom limb pain augmented reality human information processing multi-sensory
Content Type	Text
Resource Type	Article

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