Virtual Active Touch Using Randomly Patterned Intracortical Microstimulation
Identifieur interne : 001716 ( Pmc/Curation ); précédent : 001715; suivant : 001717Virtual Active Touch Using Randomly Patterned Intracortical Microstimulation
Auteurs : Joseph E. O Oherty ; Mikhail A. Lebedev ; Zheng Li ; Miguel A. L. NicolelisSource :
- IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society [ 1534-4320 ] ; 2011.
Abstract
Intracortical microstimulation (ICMS) has promise as a means for delivering somatosensory feedback in neuroprosthetic systems. Various tactile sensations could be encoded by temporal, spatial, or spatiotemporal patterns of ICMS. However, the applicability of temporal patterns of ICMS to artificial tactile sensation during active exploration is unknown, as is the minimum discriminable difference between temporally modulated ICMS patterns. We trained rhesus monkeys in an active exploration task in which they discriminated periodic pulse-trains of ICMS (200 Hz bursts at a 10 Hz secondary frequency) from pulse trains with the same average pulse rate, but distorted periodicity (200 Hz bursts at a variable instantaneous secondary frequency). The statistics of the aperiodic pulse trains were drawn from a gamma distribution with mean inter-burst intervals equal to those of the periodic pulse trains. The monkeys distinguished periodic pulse trains from aperiodic pulse trains with coefficients of variation 0.25 or greater. Reconstruction of movement kinematics, extracted from the activity of neuronal populations recorded in the sensorimotor cortex concurrent with the delivery of ICMS feedback, improved when the recording intervals affected by ICMS artifacts were removed from analysis. These results add to the growing evidence that temporally patterned ICMS can be used to simulate a tactile sense for neuroprosthetic devices.
Url:
DOI: 10.1109/TNSRE.2011.2166807
PubMed: 22207642
PubMed Central: 3590844
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<author><name sortKey="Lebedev, Mikhail A" sort="Lebedev, Mikhail A" uniqKey="Lebedev M" first="Mikhail A." last="Lebedev">Mikhail A. Lebedev</name>
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<author><name sortKey="Li, Zheng" sort="Li, Zheng" uniqKey="Li Z" first="Zheng" last="Li">Zheng Li</name>
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<front><div type="abstract" xml:lang="en"><p id="P1">Intracortical microstimulation (ICMS) has promise as a means for delivering somatosensory feedback in neuroprosthetic systems. Various tactile sensations could be encoded by temporal, spatial, or spatiotemporal patterns of ICMS. However, the applicability of temporal patterns of ICMS to artificial tactile sensation during active exploration is unknown, as is the minimum discriminable difference between temporally modulated ICMS patterns. We trained rhesus monkeys in an active exploration task in which they discriminated periodic pulse-trains of ICMS (200 Hz bursts at a 10 Hz secondary frequency) from pulse trains with the same average pulse rate, but distorted periodicity (200 Hz bursts at a variable instantaneous secondary frequency). The statistics of the aperiodic pulse trains were drawn from a gamma distribution with mean inter-burst intervals equal to those of the periodic pulse trains. The monkeys distinguished periodic pulse trains from aperiodic pulse trains with coefficients of variation 0.25 or greater. Reconstruction of movement kinematics, extracted from the activity of neuronal populations recorded in the sensorimotor cortex concurrent with the delivery of ICMS feedback, improved when the recording intervals affected by ICMS artifacts were removed from analysis. These results add to the growing evidence that temporally patterned ICMS can be used to simulate a tactile sense for neuroprosthetic devices.</p>
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<front><journal-meta><journal-id journal-id-type="nlm-journal-id">101097023</journal-id>
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<journal-id journal-id-type="nlm-ta">IEEE Trans Neural Syst Rehabil Eng</journal-id>
<journal-id journal-id-type="iso-abbrev">IEEE Trans Neural Syst Rehabil Eng</journal-id>
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<article-categories><subj-group subj-group-type="heading"><subject>Article</subject>
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<title-group><article-title>Virtual Active Touch Using Randomly Patterned Intracortical Microstimulation</article-title>
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<contrib-group><contrib contrib-type="author"><name><surname>O’Doherty</surname>
<given-names>Joseph E.</given-names>
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<email>joseph.odoherty@duke.edu</email>
<aff id="A1">Department of Neurobiology and the Center for Neuroengineering, Duke University, Durham, NC 27710 USA</aff>
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<contrib contrib-type="author"><name><surname>Lebedev</surname>
<given-names>Mikhail A.</given-names>
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<email>lebedev@neuro.duke.edu</email>
<aff id="A2">Department of Neurobiology and the Center for Neuroengineering, Duke University, Durham, NC 27710 USA</aff>
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<contrib contrib-type="author"><name><surname>Li</surname>
<given-names>Zheng</given-names>
</name>
<email>zheng@cs.duke.edu</email>
<aff id="A3">Department of Neurobiology and the Center for Neuroengineering, Duke University, Durham, NC 27710 USA</aff>
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<contrib contrib-type="author"><name><surname>Nicolelis</surname>
<given-names>Miguel A.L.</given-names>
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<email>nicoleli@neuro.duke.edu</email>
<aff id="A4">Departments of Neurobiology, Biomedical Engineering, Psychology, and the Center for Neuroengineering, Duke University, Durham, NC 27710 USA</aff>
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<pub-date pub-type="nihms-submitted"><day>15</day>
<month>11</month>
<year>2012</year>
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<pub-date pub-type="epub"><day>27</day>
<month>12</month>
<year>2011</year>
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<pub-date pub-type="ppub"><month>1</month>
<year>2012</year>
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<pub-date pub-type="pmc-release"><day>07</day>
<month>3</month>
<year>2013</year>
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<volume>20</volume>
<issue>1</issue>
<fpage>85</fpage>
<lpage>93</lpage>
<abstract><p id="P1">Intracortical microstimulation (ICMS) has promise as a means for delivering somatosensory feedback in neuroprosthetic systems. Various tactile sensations could be encoded by temporal, spatial, or spatiotemporal patterns of ICMS. However, the applicability of temporal patterns of ICMS to artificial tactile sensation during active exploration is unknown, as is the minimum discriminable difference between temporally modulated ICMS patterns. We trained rhesus monkeys in an active exploration task in which they discriminated periodic pulse-trains of ICMS (200 Hz bursts at a 10 Hz secondary frequency) from pulse trains with the same average pulse rate, but distorted periodicity (200 Hz bursts at a variable instantaneous secondary frequency). The statistics of the aperiodic pulse trains were drawn from a gamma distribution with mean inter-burst intervals equal to those of the periodic pulse trains. The monkeys distinguished periodic pulse trains from aperiodic pulse trains with coefficients of variation 0.25 or greater. Reconstruction of movement kinematics, extracted from the activity of neuronal populations recorded in the sensorimotor cortex concurrent with the delivery of ICMS feedback, improved when the recording intervals affected by ICMS artifacts were removed from analysis. These results add to the growing evidence that temporally patterned ICMS can be used to simulate a tactile sense for neuroprosthetic devices.</p>
</abstract>
<kwd-group><title>Index Terms</title>
<kwd>bidirectional interface</kwd>
<kwd>brain-machine interface</kwd>
<kwd>intracortical microstimulation</kwd>
<kwd>neural prosthesis</kwd>
</kwd-group>
<funding-group><award-group><funding-source country="United States">National Institute of Child Health & Human Development : NICHD</funding-source>
<award-id>RC1 HD063390 || HD</award-id>
</award-group>
<award-group><funding-source country="United States">Office of the Director : NIH</funding-source>
<award-id>DP1 OD006798 || OD</award-id>
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