Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/108323
DC Field | Value | Language |
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dc.contributor.author | Castelhano, J. | - |
dc.contributor.author | Duarte, Isabel C. | - |
dc.contributor.author | Abuhaiba, Sulaiman I. | - |
dc.contributor.author | Rito, Manuel | - |
dc.contributor.author | Sales, Francisco | - |
dc.contributor.author | Castelo-Branco, Miguel | - |
dc.date.accessioned | 2023-08-24T09:40:46Z | - |
dc.date.available | 2023-08-24T09:40:46Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 1932-6203 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/108323 | - |
dc.description.abstract | High-frequency activity (HFA) is believed to subserve a functional role in cognition, but these patterns are often not accessible to scalp EEG recordings. Intracranial studies provide a unique opportunity to link the all-encompassing range of high-frequency patterns with holistic perception. We tested whether the functional topography of HFAs (up to 250Hz) is related to perceptual decision-making. Human intracortical data were recorded (6 subjects; >250channels) during an ambiguous object-recognition task. We found a spatial topography of HFAs reflecting processing anterior dorsal and ventral streams, linked to decision independently of the type of processed object/stimulus category. Three distinct regional fingerprints could be identified, with lower gamma frequency patterns (<45Hz) dominating in the anterior semantic ventral object processing and dorsoventral integrating networks and evolving later, during perceptual decision phases, than early sensory posterior patterns (60-250Hz). This suggests that accurate object recognition/perceptual decision-making is related to distinct spatiotemporal signatures in the low gamma frequency range. | pt |
dc.language.iso | eng | pt |
dc.publisher | Public Library of Science | pt |
dc.relation | CENTRO-07-ST24-FEDER-00205 | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID/NEU/04539/2013/PT | pt |
dc.relation | CENTRO-01-0145-FEDER-000016/BIGDATIMAGE | pt |
dc.relation | SAICTPAC/0010/2015 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject.mesh | Adolescent | pt |
dc.subject.mesh | Adult | pt |
dc.subject.mesh | Cerebral Cortex | pt |
dc.subject.mesh | Electroencephalography | pt |
dc.subject.mesh | Epilepsy | pt |
dc.subject.mesh | Female | pt |
dc.subject.mesh | Humans | pt |
dc.subject.mesh | Male | pt |
dc.subject.mesh | Reaction Time | pt |
dc.subject.mesh | Young Adult | pt |
dc.subject.mesh | Decision Making | pt |
dc.subject.mesh | Visual Perception | pt |
dc.title | Cortical functional topography of high-frequency gamma activity relates to perceptual decision: an Intracranial study | pt |
dc.type | article | - |
degois.publication.firstPage | e0186428 | pt |
degois.publication.issue | 10 | pt |
degois.publication.title | PLoS ONE | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.1371/journal.pone.0186428 | pt |
degois.publication.volume | 12 | pt |
dc.date.embargo | 2017-01-01 | * |
uc.date.periodoEmbargo | 0 | pt |
item.fulltext | Com Texto completo | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.project.grantno | CNC. IBILI | - |
crisitem.project.grantno | BIGDATIMAGE - Da modelação computacional e investigação clínica ao desenvolvimento de plataformas de neuroimagem e big data para descoberta de biomarcadores | - |
crisitem.project.grantno | MEDPERSYS - Synaptic networks and Personalized Medicine Approaches to Understand Neurobehavioural Diseases Across the Lifespan | - |
crisitem.author.researchunit | ICNAS - Institute for Nuclear Sciences Applied to Health | - |
crisitem.author.researchunit | CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research | - |
crisitem.author.researchunit | CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research | - |
crisitem.author.orcid | 0000-0002-8996-1515 | - |
crisitem.author.orcid | 0000-0002-5620-2424 | - |
crisitem.author.orcid | 0000-0003-4364-6373 | - |
Appears in Collections: | I&D CIBIT - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
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Cortical-functional-topography-of-highfrequency-gamma-activity-relates-to-perceptual-decision-An-Intracranial-studyPLoS-ONE.pdf | 6.53 MB | Adobe PDF | View/Open |
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