Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use
Individuals who have sustained a mild brain injury (e.g., mild traumatic brain injury or mild cerebrovascular stroke) are at risk to show persistent cognitive symptoms (attention and memory) after the acute postinjury phase. Although studies have shown that those patients perform normally on neurops...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2012/618654 |
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| _version_ | 1832548132329619456 |
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| author | Julie Bolduc-Teasdale Pierre Jolicoeur Michelle McKerral |
| author_facet | Julie Bolduc-Teasdale Pierre Jolicoeur Michelle McKerral |
| author_sort | Julie Bolduc-Teasdale |
| collection | DOAJ |
| description | Individuals who have sustained a mild brain injury (e.g., mild traumatic brain injury or mild cerebrovascular stroke) are at risk to show persistent cognitive symptoms (attention and memory) after the acute postinjury phase. Although studies have shown that those patients perform normally on neuropsychological tests, cognitive symptoms remain present, and there is a need for more precise diagnostic tools. The aim of this study was to develop precise and sensitive markers for the diagnosis of post brain injury deficits in visual and attentional functions which could be easily translated in a clinical setting. Using electrophysiology, we have developed a task that allows the tracking of the processes involved in the deployment of visual spatial attention from early stages of visual treatment (N1, P1, N2, and P2) to higher levels of cognitive processing (no-go N2, P3a, P3b, N2pc, SPCN). This study presents a description of this protocol and its validation in 19 normal participants. Results indicated the statistically significant presence of all ERPs aimed to be elicited by this novel task. This task could allow clinicians to track the recovery of the mechanisms involved in the deployment of visual-attentional processing, contributing to better diagnosis and treatment management for persons who suffer a brain injury. |
| format | Article |
| id | doaj-art-96368e23b2b04f6ead591c268fa72188 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-96368e23b2b04f6ead591c268fa721882025-02-03T06:42:05ZengWileyJournal of Ophthalmology2090-004X2090-00582012-01-01201210.1155/2012/618654618654Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical UseJulie Bolduc-Teasdale0Pierre Jolicoeur1Michelle McKerral2Centre for Interdisciplinary Research in Rehabilitation and Lucie-Bruneau Rehabilitation Centre, 2275 Laurier Avenue East, Montreal, QC, H2H 2N8, CanadaCentre for Research in Neuropsychology and Cognition, University of Montreal, C.P. 6128, Succursale Centre-Ville, Montreal, QC, H3C 3J7, CanadaCentre for Interdisciplinary Research in Rehabilitation and Lucie-Bruneau Rehabilitation Centre, 2275 Laurier Avenue East, Montreal, QC, H2H 2N8, CanadaIndividuals who have sustained a mild brain injury (e.g., mild traumatic brain injury or mild cerebrovascular stroke) are at risk to show persistent cognitive symptoms (attention and memory) after the acute postinjury phase. Although studies have shown that those patients perform normally on neuropsychological tests, cognitive symptoms remain present, and there is a need for more precise diagnostic tools. The aim of this study was to develop precise and sensitive markers for the diagnosis of post brain injury deficits in visual and attentional functions which could be easily translated in a clinical setting. Using electrophysiology, we have developed a task that allows the tracking of the processes involved in the deployment of visual spatial attention from early stages of visual treatment (N1, P1, N2, and P2) to higher levels of cognitive processing (no-go N2, P3a, P3b, N2pc, SPCN). This study presents a description of this protocol and its validation in 19 normal participants. Results indicated the statistically significant presence of all ERPs aimed to be elicited by this novel task. This task could allow clinicians to track the recovery of the mechanisms involved in the deployment of visual-attentional processing, contributing to better diagnosis and treatment management for persons who suffer a brain injury.http://dx.doi.org/10.1155/2012/618654 |
| spellingShingle | Julie Bolduc-Teasdale Pierre Jolicoeur Michelle McKerral Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use Journal of Ophthalmology |
| title | Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use |
| title_full | Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use |
| title_fullStr | Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use |
| title_full_unstemmed | Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use |
| title_short | Multiple Electrophysiological Markers of Visual-Attentional Processing in a Novel Task Directed toward Clinical Use |
| title_sort | multiple electrophysiological markers of visual attentional processing in a novel task directed toward clinical use |
| url | http://dx.doi.org/10.1155/2012/618654 |
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