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A compatible electrocutaneous display for functional magnetic resonance imaging application

Hartwig, Valentina and Cappelli, Claudia and Vanello, Nicola and Ricciardi, Emiliano and Scilingo, Enzo Pasquale and Giovannetti, Giulio and Santarelli, Maria Filomena and Positano, Vincenzo and Pietrini, Pietro and Landini, Luigi and Bicchi, Antonio A compatible electrocutaneous display for functional magnetic resonance imaging application. In: EMBS Annual International Conference, 30 Aug - 03 Sep 2006, New York ISBN 1-4244-0032-5. (2006)

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In this paper we propose an MR (magnetic resonance) compatible electrocutaneous stimulator able to inject an electric current, variable in amplitude and frequency, into the fingertips in order to elicit tactile skin receptors (mechanoreceptors). The desired goal is to evoke specific tactile sensations selectively stimulating skin receptors by means of an electric current in place of mechanical stimuli. The field of application ranges from functional magnetic resonance imaging (fMRI) tactile studies to augmented reality technology. The device here proposed is designed using safety criteria in order to comply with the threshold of voltage and current permitted by regulations. Moreover, MR safety and compatibility criteria were considered in order to perform experiments inside the MR scanner during an fMRI acquisition for functional brain activation analysis. Psychophysical laboratory tests are performed in order to define the different evoked tactile sensation. After verifying the device MR safety and compatibility on a phantom, a test on a human subject during fMRI acquisition is performed to visualize the brain areas activated by the simulated tactile sensation.

Item Type: Conference or Workshop Item (Paper)
Identification Number: 10.1109/IEMBS.2006.260279
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Research Area: Computer Science and Applications
Depositing User: Users 72 not found.
Date Deposited: 04 May 2016 16:16
Last Modified: 13 Sep 2016 10:10
URI: http://eprints.imtlucca.it/id/eprint/3479

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