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Overlap of attention and movement-related activity in lateralized event-related brain potentials
In tasks that involve lateralized visuospatial attention and a lateralized motor response, the associated brain electrical potentials, i.e. the attention-related N2pc and the lateralized readiness potential, typically overlap at central scalp sites. The manifestation of the N2pc at central electrode...
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Published in: | Clinical neurophysiology 2001-03, Vol.112 (3), p.477-484 |
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container_title | Clinical neurophysiology |
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creator | OOSTENVELD, R PRAAMSTRA, P STEGEMAN, D. F VAN OOSTEROM, A |
description | In tasks that involve lateralized visuospatial attention and a lateralized motor response, the associated brain electrical potentials, i.e. the attention-related N2pc and the lateralized readiness potential, typically overlap at central scalp sites. The manifestation of the N2pc at central electrode sites is commonly attributed to electric volume conduction effects, assuming the N2pc to be generated in occipito-temporal brain areas. We evaluated this explanation in a simulation study.
Using a forward modeling approach with a realistically shaped volume conduction model, we calculated the range of amplitude ratios between occipital and central electrode sites when a single source is assumed in area V4 or in area TO, at the temporo-occipital convexity.
A comparison of the simulated amplitude ratios with reported data indicates that volume conduction effects from the investigated source origins in the occipito-temporal region are insufficient to explain the experimental data.
We conclude that the anterior spread of the N2pc from its occipito-temporal maximum to central electrode sites is probably due to simultaneous attention-related activity in posterior and central brain areas. |
doi_str_mv | 10.1016/S1388-2457(01)00460-6 |
format | article |
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Using a forward modeling approach with a realistically shaped volume conduction model, we calculated the range of amplitude ratios between occipital and central electrode sites when a single source is assumed in area V4 or in area TO, at the temporo-occipital convexity.
A comparison of the simulated amplitude ratios with reported data indicates that volume conduction effects from the investigated source origins in the occipito-temporal region are insufficient to explain the experimental data.
We conclude that the anterior spread of the N2pc from its occipito-temporal maximum to central electrode sites is probably due to simultaneous attention-related activity in posterior and central brain areas.</description><identifier>ISSN: 1388-2457</identifier><identifier>EISSN: 1872-8952</identifier><identifier>DOI: 10.1016/S1388-2457(01)00460-6</identifier><identifier>PMID: 11222970</identifier><language>eng</language><publisher>Shannon: Elsevier Science</publisher><subject>Attention - physiology ; Behavioral psychophysiology ; Biological and medical sciences ; Electrodes ; Electrophysiology ; Evoked Potentials, Motor - physiology ; Evoked Potentials, Visual - physiology ; Fundamental and applied biological sciences. Psychology ; Humans ; Magnetic Resonance Imaging ; Models, Neurological ; Motor Cortex - physiology ; Movement - physiology ; Psychology. Psychoanalysis. Psychiatry ; Psychology. Psychophysiology ; Psychomotor Performance - physiology ; Space Perception - physiology ; Visual Cortex - physiology</subject><ispartof>Clinical neurophysiology, 2001-03, Vol.112 (3), p.477-484</ispartof><rights>2001 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-39d57a20c2b95a63d718698ff1df33a7bf81202344f0ab71cd887aee90dc5fbe3</citedby><cites>FETCH-LOGICAL-c386t-39d57a20c2b95a63d718698ff1df33a7bf81202344f0ab71cd887aee90dc5fbe3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1081823$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11222970$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>OOSTENVELD, R</creatorcontrib><creatorcontrib>PRAAMSTRA, P</creatorcontrib><creatorcontrib>STEGEMAN, D. F</creatorcontrib><creatorcontrib>VAN OOSTEROM, A</creatorcontrib><title>Overlap of attention and movement-related activity in lateralized event-related brain potentials</title><title>Clinical neurophysiology</title><addtitle>Clin Neurophysiol</addtitle><description>In tasks that involve lateralized visuospatial attention and a lateralized motor response, the associated brain electrical potentials, i.e. the attention-related N2pc and the lateralized readiness potential, typically overlap at central scalp sites. The manifestation of the N2pc at central electrode sites is commonly attributed to electric volume conduction effects, assuming the N2pc to be generated in occipito-temporal brain areas. We evaluated this explanation in a simulation study.
Using a forward modeling approach with a realistically shaped volume conduction model, we calculated the range of amplitude ratios between occipital and central electrode sites when a single source is assumed in area V4 or in area TO, at the temporo-occipital convexity.
A comparison of the simulated amplitude ratios with reported data indicates that volume conduction effects from the investigated source origins in the occipito-temporal region are insufficient to explain the experimental data.
We conclude that the anterior spread of the N2pc from its occipito-temporal maximum to central electrode sites is probably due to simultaneous attention-related activity in posterior and central brain areas.</description><subject>Attention - physiology</subject><subject>Behavioral psychophysiology</subject><subject>Biological and medical sciences</subject><subject>Electrodes</subject><subject>Electrophysiology</subject><subject>Evoked Potentials, Motor - physiology</subject><subject>Evoked Potentials, Visual - physiology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Magnetic Resonance Imaging</subject><subject>Models, Neurological</subject><subject>Motor Cortex - physiology</subject><subject>Movement - physiology</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychology. 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Psychophysiology</topic><topic>Psychomotor Performance - physiology</topic><topic>Space Perception - physiology</topic><topic>Visual Cortex - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>OOSTENVELD, R</creatorcontrib><creatorcontrib>PRAAMSTRA, P</creatorcontrib><creatorcontrib>STEGEMAN, D. F</creatorcontrib><creatorcontrib>VAN OOSTEROM, A</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical neurophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>OOSTENVELD, R</au><au>PRAAMSTRA, P</au><au>STEGEMAN, D. F</au><au>VAN OOSTEROM, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Overlap of attention and movement-related activity in lateralized event-related brain potentials</atitle><jtitle>Clinical neurophysiology</jtitle><addtitle>Clin Neurophysiol</addtitle><date>2001-03-01</date><risdate>2001</risdate><volume>112</volume><issue>3</issue><spage>477</spage><epage>484</epage><pages>477-484</pages><issn>1388-2457</issn><eissn>1872-8952</eissn><abstract>In tasks that involve lateralized visuospatial attention and a lateralized motor response, the associated brain electrical potentials, i.e. the attention-related N2pc and the lateralized readiness potential, typically overlap at central scalp sites. The manifestation of the N2pc at central electrode sites is commonly attributed to electric volume conduction effects, assuming the N2pc to be generated in occipito-temporal brain areas. We evaluated this explanation in a simulation study.
Using a forward modeling approach with a realistically shaped volume conduction model, we calculated the range of amplitude ratios between occipital and central electrode sites when a single source is assumed in area V4 or in area TO, at the temporo-occipital convexity.
A comparison of the simulated amplitude ratios with reported data indicates that volume conduction effects from the investigated source origins in the occipito-temporal region are insufficient to explain the experimental data.
We conclude that the anterior spread of the N2pc from its occipito-temporal maximum to central electrode sites is probably due to simultaneous attention-related activity in posterior and central brain areas.</abstract><cop>Shannon</cop><pub>Elsevier Science</pub><pmid>11222970</pmid><doi>10.1016/S1388-2457(01)00460-6</doi><tpages>8</tpages></addata></record> |
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subjects | Attention - physiology Behavioral psychophysiology Biological and medical sciences Electrodes Electrophysiology Evoked Potentials, Motor - physiology Evoked Potentials, Visual - physiology Fundamental and applied biological sciences. Psychology Humans Magnetic Resonance Imaging Models, Neurological Motor Cortex - physiology Movement - physiology Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Psychomotor Performance - physiology Space Perception - physiology Visual Cortex - physiology |
title | Overlap of attention and movement-related activity in lateralized event-related brain potentials |
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