Variables in P300 recording: task type and electrode position
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | CoDAS |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-17822016000400355 |
Resumo: | ABSTRACT Purpose To analyze the latency and amplitude of P300 responses obtained with electrodes positioned at Cz and Fz and in different tasks of infrequent stimulus identification in normal hearing individuals. Methods Forty adults of both genders participated in the study. Three recordings with three different tasks were obtained for the identification of the infrequent stimulus; simultaneous recordings were obtained from Cz and Fz positions. Results Cz position showed significantly greater amplitudes and lower latencies than Fz. Regarding the three tasks, only “pronouncing the word ’thin’” was different from “raising a finger”, with lowest latencies for the verbal task. Regarding amplitude, significantly higher values were observed for “raising a finger”, followed by “pronouncing the word ‘thin’” and mental counting. Conclusion Cz obtained the best values, highest amplitude and lowest latency. Lowest latencies were obtained for the task of “pronouncing the word ‘thin’” and the highest amplitudes were obtained for “raising a finger”. |
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oai:scielo:S2317-17822016000400355 |
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Variables in P300 recording: task type and electrode positionP300 Evoked PotentialsYoung AdultHearingElectrophysiologyAudiologyABSTRACT Purpose To analyze the latency and amplitude of P300 responses obtained with electrodes positioned at Cz and Fz and in different tasks of infrequent stimulus identification in normal hearing individuals. Methods Forty adults of both genders participated in the study. Three recordings with three different tasks were obtained for the identification of the infrequent stimulus; simultaneous recordings were obtained from Cz and Fz positions. Results Cz position showed significantly greater amplitudes and lower latencies than Fz. Regarding the three tasks, only “pronouncing the word ’thin’” was different from “raising a finger”, with lowest latencies for the verbal task. Regarding amplitude, significantly higher values were observed for “raising a finger”, followed by “pronouncing the word ‘thin’” and mental counting. Conclusion Cz obtained the best values, highest amplitude and lowest latency. Lowest latencies were obtained for the task of “pronouncing the word ‘thin’” and the highest amplitudes were obtained for “raising a finger”.Sociedade Brasileira de Fonoaudiologia2016-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-17822016000400355CoDAS v.28 n.4 2016reponame:CoDASinstname:Sociedade Brasileira de Fonoaudiologia (SBFA)instacron:SBFA10.1590/2317-1782/20162015189info:eu-repo/semantics/openAccessSimões,Humberto de OliveiraFrizzo,Ana Cláudia FigueiredoZanchetta,SthellaHyppolito,Miguel ÂngeloReis,Ana Cláudia Mirândola Barbosaeng2016-09-15T00:00:00Zoai:scielo:S2317-17822016000400355Revistahttps://www.codas.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.phpcodas@editoracubo.com.br||revista@codas.org.br2317-17822317-1782opendoar:2016-09-15T00:00CoDAS - Sociedade Brasileira de Fonoaudiologia (SBFA)false |
dc.title.none.fl_str_mv |
Variables in P300 recording: task type and electrode position |
title |
Variables in P300 recording: task type and electrode position |
spellingShingle |
Variables in P300 recording: task type and electrode position Simões,Humberto de Oliveira P300 Evoked Potentials Young Adult Hearing Electrophysiology Audiology |
title_short |
Variables in P300 recording: task type and electrode position |
title_full |
Variables in P300 recording: task type and electrode position |
title_fullStr |
Variables in P300 recording: task type and electrode position |
title_full_unstemmed |
Variables in P300 recording: task type and electrode position |
title_sort |
Variables in P300 recording: task type and electrode position |
author |
Simões,Humberto de Oliveira |
author_facet |
Simões,Humberto de Oliveira Frizzo,Ana Cláudia Figueiredo Zanchetta,Sthella Hyppolito,Miguel Ângelo Reis,Ana Cláudia Mirândola Barbosa |
author_role |
author |
author2 |
Frizzo,Ana Cláudia Figueiredo Zanchetta,Sthella Hyppolito,Miguel Ângelo Reis,Ana Cláudia Mirândola Barbosa |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Simões,Humberto de Oliveira Frizzo,Ana Cláudia Figueiredo Zanchetta,Sthella Hyppolito,Miguel Ângelo Reis,Ana Cláudia Mirândola Barbosa |
dc.subject.por.fl_str_mv |
P300 Evoked Potentials Young Adult Hearing Electrophysiology Audiology |
topic |
P300 Evoked Potentials Young Adult Hearing Electrophysiology Audiology |
description |
ABSTRACT Purpose To analyze the latency and amplitude of P300 responses obtained with electrodes positioned at Cz and Fz and in different tasks of infrequent stimulus identification in normal hearing individuals. Methods Forty adults of both genders participated in the study. Three recordings with three different tasks were obtained for the identification of the infrequent stimulus; simultaneous recordings were obtained from Cz and Fz positions. Results Cz position showed significantly greater amplitudes and lower latencies than Fz. Regarding the three tasks, only “pronouncing the word ’thin’” was different from “raising a finger”, with lowest latencies for the verbal task. Regarding amplitude, significantly higher values were observed for “raising a finger”, followed by “pronouncing the word ‘thin’” and mental counting. Conclusion Cz obtained the best values, highest amplitude and lowest latency. Lowest latencies were obtained for the task of “pronouncing the word ‘thin’” and the highest amplitudes were obtained for “raising a finger”. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-17822016000400355 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-17822016000400355 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2317-1782/20162015189 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Fonoaudiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Fonoaudiologia |
dc.source.none.fl_str_mv |
CoDAS v.28 n.4 2016 reponame:CoDAS instname:Sociedade Brasileira de Fonoaudiologia (SBFA) instacron:SBFA |
instname_str |
Sociedade Brasileira de Fonoaudiologia (SBFA) |
instacron_str |
SBFA |
institution |
SBFA |
reponame_str |
CoDAS |
collection |
CoDAS |
repository.name.fl_str_mv |
CoDAS - Sociedade Brasileira de Fonoaudiologia (SBFA) |
repository.mail.fl_str_mv |
codas@editoracubo.com.br||revista@codas.org.br |
_version_ |
1752122441162817536 |