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This procedure is uncomfortable, can trigger seizures or nausea, and relies on subjective evaluation. We hypothesize that a method combining vibrotactile stimulation and statistical clustering may provide improved somatosensory mapping.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Seven pediatric candidates for surgical resection underwent a task in which their fingers were independently stimulated using a custom designed finger pad, during electrocorticographic monitoring. A cluster\u2010based statistical analysis was then performed to localize the elicited activity on the recording grids.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mid\u2010Gamma clusters (65\u2013115\u00a0Hz) arose in areas consistent with anatomical predictions as well as clinical findings, with five subjects presenting a somatotopic organization of the fingers. This process allowed us to delineate finger representation even in patients who were sleeping, with strong interictal activity, or when electrical stimulation did not successfully locate eloquent areas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>We suggest that this scheme, relying on the endogenous neural response rather than exogenous electrical activation, could eventually be extended to map other sensory areas and provide a faster and more objective map to better anticipate outcomes of surgical resection.<\/jats:p><\/jats:sec>","DOI":"10.1002\/brb3.369","type":"journal-article","created":{"date-parts":[[2015,9,21]],"date-time":"2015-09-21T10:27:35Z","timestamp":1442831255000},"source":"Crossref","is-referenced-by-count":15,"title":["Delineation of somatosensory finger areas using vibrotactile stimulation, an <scp>EC<\/scp>oG study"],"prefix":"10.1002","volume":"5","author":[{"given":"R\u00e9my","family":"Wahnoun","sequence":"first","affiliation":[{"name":"Barrow Neurological Institute at Phoenix Children's Hospital Children's Neuroscience Research Phoenix Arizona"},{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe Arizona"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michelle","family":"Benson","sequence":"additional","affiliation":[{"name":"Barrow Neurological Institute at Phoenix Children's Hospital Children's Neuroscience Research Phoenix Arizona"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephen","family":"Helms\u2010Tillery","sequence":"additional","affiliation":[{"name":"School of Biological and Health Systems Engineering Arizona State University Tempe Arizona"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"P. 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