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dc.contributor.authorOrtiz Alonso, Tomásen_US
dc.contributor.authorSantos, Juan Matíasen_US
dc.contributor.authorOrtiz Terán, Lauraen_US
dc.contributor.authorBorrego Hernández, Mayelinen_US
dc.contributor.authorPoch Broto, Joaquínen_US
dc.contributor.authorde Erausquin, Gabriel Alejandroen_US
dc.date.accessioned2015-09-01T13:28:31Z
dc.date.issued2015en_US
dc.identifier.citationOrtiz Alonso, Tomás, Juan Matías Santos, Laura Ortiz Terán, Mayelin Borrego Hernández, Joaquín Poch Broto, and Gabriel Alejandro de Erausquin. 2015. “Differences in Early Stages of Tactile ERP Temporal Sequence (P100) in Cortical Organization during Passive Tactile Stimulation in Children with Blindness and Controls.” PLoS ONE 10 (7): e0124527. doi:10.1371/journal.pone.0124527. http://dx.doi.org/10.1371/journal.pone.0124527.en
dc.identifier.issn1932-6203en
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:21462483
dc.description.abstractCompared to their seeing counterparts, people with blindness have a greater tactile capacity. Differences in the physiology of object recognition between people with blindness and seeing people have been well documented, but not when tactile stimuli require semantic processing. We used a passive vibrotactile device to focus on the differences in spatial brain processing evaluated with event related potentials (ERP) in children with blindness (n = 12) vs. normally seeing children (n = 12), when learning a simple spatial task (lines with different orientations) or a task involving recognition of letters, to describe the early stages of its temporal sequence (from 80 to 220 msec) and to search for evidence of multi-modal cortical organization. We analysed the P100 of the ERP. Children with blindness showed earlier latencies for cognitive (perceptual) event related potentials, shorter reaction times, and (paradoxically) worse ability to identify the spatial direction of the stimulus. On the other hand, they are equally proficient in recognizing stimuli with semantic content (letters). The last observation is consistent with the role of P100 on somatosensory-based recognition of complex forms. The cortical differences between seeing control and blind groups, during spatial tactile discrimination, are associated with activation in visual pathway (occipital) and task-related association (temporal and frontal) areas. The present results show that early processing of tactile stimulation conveying cross modal information differs in children with blindness or with normal vision.en
dc.language.isoen_USen
dc.publisherPublic Library of Scienceen
dc.relation.isversionofdoi:10.1371/journal.pone.0124527en
dc.relation.hasversionhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC4520520/pdf/en
dash.licenseLAAen_US
dc.titleDifferences in Early Stages of Tactile ERP Temporal Sequence (P100) in Cortical Organization during Passive Tactile Stimulation in Children with Blindness and Controlsen
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden
dc.relation.journalPLoS ONEen
dc.date.available2015-09-01T13:28:31Z
dc.identifier.doi10.1371/journal.pone.0124527*


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