Electroencephalographic findings in panic disorder
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Trends in Psychiatry and Psychotherapy |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-60892013000400238 |
Resumo: | Some studies have reported the importance of electroencephalography (EEG) as a method for investigating abnormal parameters in psychiatric disorders. Different findings in time and frequency domain analysis with regard to central nervous system arousal during acute panic states have already been obtained. This study aimed to systematically review the EEG findings in panic disorder (PD), discuss them having a currently accepted neuroanatomical hypothesis for this pathology as a basis, and identify limitations in the selected studies. Literature search was conducted in the databases PubMed and ISI Web of Knowledge, using the keywords electroencephalography and panic disorder; 16 articles were selected. Despite the inconsistency of EEG findings in PD, the major conclusions about the absolute power of alpha and beta bands point to a decreased alpha power, while beta power tends to increase. Different asymmetry patterns were found between studies. Coherence studies pointed to a lower degree of inter-hemispheric functional connectivity at the frontal region and intra-hemispheric at the bilateral temporal region. Studies on possible related events showed changes in memory processing in PD patients when exposed to aversive stimuli. It was noticed that most findings reflect the current neurobiological hypothesis of PD, where inhibitory deficits of the prefrontal cortex related to the modulation of amygdala activity, and the subsequent activation of subcortical regions, may be responsible to trigger anxiety responses. We approached some important issues that need to be considered in further researches, especially the use of different methods for analyzing EEG signals. Keywords: Electroencephalography, panic disorder, neurobiology, brain mapping. |
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Electroencephalographic findings in panic disorderElectroencephalographypanic disorderneurobiologybrain mappingSome studies have reported the importance of electroencephalography (EEG) as a method for investigating abnormal parameters in psychiatric disorders. Different findings in time and frequency domain analysis with regard to central nervous system arousal during acute panic states have already been obtained. This study aimed to systematically review the EEG findings in panic disorder (PD), discuss them having a currently accepted neuroanatomical hypothesis for this pathology as a basis, and identify limitations in the selected studies. Literature search was conducted in the databases PubMed and ISI Web of Knowledge, using the keywords electroencephalography and panic disorder; 16 articles were selected. Despite the inconsistency of EEG findings in PD, the major conclusions about the absolute power of alpha and beta bands point to a decreased alpha power, while beta power tends to increase. Different asymmetry patterns were found between studies. Coherence studies pointed to a lower degree of inter-hemispheric functional connectivity at the frontal region and intra-hemispheric at the bilateral temporal region. Studies on possible related events showed changes in memory processing in PD patients when exposed to aversive stimuli. It was noticed that most findings reflect the current neurobiological hypothesis of PD, where inhibitory deficits of the prefrontal cortex related to the modulation of amygdala activity, and the subsequent activation of subcortical regions, may be responsible to trigger anxiety responses. We approached some important issues that need to be considered in further researches, especially the use of different methods for analyzing EEG signals. Keywords: Electroencephalography, panic disorder, neurobiology, brain mapping.Associação de Psiquiatria do Rio Grande do Sul2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-60892013000400238Trends in Psychiatry and Psychotherapy v.35 n.4 2013reponame:Trends in Psychiatry and Psychotherapyinstname:Sociedade de Psiquiatria do Rio Grande do Sulinstacron:APRGS10.1590/2237-6089-2013-0012info:eu-repo/semantics/openAccessCarvalho,Marcele Regine deVelasques,Bruna BrandaoCagy,MauricioMarques,Juliana BittencourtTeixeira,SilmarNardi,Antonio EgidioPiedade,RobertoRibeiro,Pedroeng2013-12-16T00:00:00Zoai:scielo:S2237-60892013000400238Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2237-6089&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.phprevista@aprs.org.br|| rodrigo_grassi@terra.com.br2238-00192237-6089opendoar:2013-12-16T00:00Trends in Psychiatry and Psychotherapy - Sociedade de Psiquiatria do Rio Grande do Sulfalse |
dc.title.none.fl_str_mv |
Electroencephalographic findings in panic disorder |
title |
Electroencephalographic findings in panic disorder |
spellingShingle |
Electroencephalographic findings in panic disorder Carvalho,Marcele Regine de Electroencephalography panic disorder neurobiology brain mapping |
title_short |
Electroencephalographic findings in panic disorder |
title_full |
Electroencephalographic findings in panic disorder |
title_fullStr |
Electroencephalographic findings in panic disorder |
title_full_unstemmed |
Electroencephalographic findings in panic disorder |
title_sort |
Electroencephalographic findings in panic disorder |
author |
Carvalho,Marcele Regine de |
author_facet |
Carvalho,Marcele Regine de Velasques,Bruna Brandao Cagy,Mauricio Marques,Juliana Bittencourt Teixeira,Silmar Nardi,Antonio Egidio Piedade,Roberto Ribeiro,Pedro |
author_role |
author |
author2 |
Velasques,Bruna Brandao Cagy,Mauricio Marques,Juliana Bittencourt Teixeira,Silmar Nardi,Antonio Egidio Piedade,Roberto Ribeiro,Pedro |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Carvalho,Marcele Regine de Velasques,Bruna Brandao Cagy,Mauricio Marques,Juliana Bittencourt Teixeira,Silmar Nardi,Antonio Egidio Piedade,Roberto Ribeiro,Pedro |
dc.subject.por.fl_str_mv |
Electroencephalography panic disorder neurobiology brain mapping |
topic |
Electroencephalography panic disorder neurobiology brain mapping |
description |
Some studies have reported the importance of electroencephalography (EEG) as a method for investigating abnormal parameters in psychiatric disorders. Different findings in time and frequency domain analysis with regard to central nervous system arousal during acute panic states have already been obtained. This study aimed to systematically review the EEG findings in panic disorder (PD), discuss them having a currently accepted neuroanatomical hypothesis for this pathology as a basis, and identify limitations in the selected studies. Literature search was conducted in the databases PubMed and ISI Web of Knowledge, using the keywords electroencephalography and panic disorder; 16 articles were selected. Despite the inconsistency of EEG findings in PD, the major conclusions about the absolute power of alpha and beta bands point to a decreased alpha power, while beta power tends to increase. Different asymmetry patterns were found between studies. Coherence studies pointed to a lower degree of inter-hemispheric functional connectivity at the frontal region and intra-hemispheric at the bilateral temporal region. Studies on possible related events showed changes in memory processing in PD patients when exposed to aversive stimuli. It was noticed that most findings reflect the current neurobiological hypothesis of PD, where inhibitory deficits of the prefrontal cortex related to the modulation of amygdala activity, and the subsequent activation of subcortical regions, may be responsible to trigger anxiety responses. We approached some important issues that need to be considered in further researches, especially the use of different methods for analyzing EEG signals. Keywords: Electroencephalography, panic disorder, neurobiology, brain mapping. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-01-01 |
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=S2237-60892013000400238 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2237-60892013000400238 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2237-6089-2013-0012 |
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 |
Associação de Psiquiatria do Rio Grande do Sul |
publisher.none.fl_str_mv |
Associação de Psiquiatria do Rio Grande do Sul |
dc.source.none.fl_str_mv |
Trends in Psychiatry and Psychotherapy v.35 n.4 2013 reponame:Trends in Psychiatry and Psychotherapy instname:Sociedade de Psiquiatria do Rio Grande do Sul instacron:APRGS |
instname_str |
Sociedade de Psiquiatria do Rio Grande do Sul |
instacron_str |
APRGS |
institution |
APRGS |
reponame_str |
Trends in Psychiatry and Psychotherapy |
collection |
Trends in Psychiatry and Psychotherapy |
repository.name.fl_str_mv |
Trends in Psychiatry and Psychotherapy - Sociedade de Psiquiatria do Rio Grande do Sul |
repository.mail.fl_str_mv |
revista@aprs.org.br|| rodrigo_grassi@terra.com.br |
_version_ |
1754209280190316544 |