Simultaneous desynchronization and synchronization of different alpha responses in the human electroencephalograph:: a neglected paradox?

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000086908300025&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1016/S0304-3940(00)00985-X
Externe Identifier
  • Clarivate Analytics Document Solution ID: 311WF
  • PubMed Identifier: 10771171
ISSN
0304-3940
Ausgabe der Veröffentlichung
1-2
Zeitschrift
NEUROSCIENCE LETTERS
Schlüsselwörter
  • alpha
  • event-related potential
  • event related decrease
  • induced oscillations
  • evoked oscillations
  • induced band power
  • event related band power
Paginierung
97 - 100
Datum der Veröffentlichung
2000
Status
Published
Titel
Simultaneous desynchronization and synchronization of different alpha responses in the human electroencephalograph:: a neglected paradox?
Sub types
  • Article
Ausgabe der Zeitschrift
284

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
DOI
10.1016/s0304-3940(00)00985-x
ISSN
0304-3940
Ausgabe der Veröffentlichung
1-2
Zeitschrift
Neuroscience Letters
Sprache
en
Paginierung
97 - 100
Datum der Veröffentlichung
2000
Status
Published
Herausgeber
Elsevier BV
Herausgeber URL
http://dx.doi.org/10.1016/s0304-3940(00)00985-x
Datum der Datenerfassung
2019
Titel
Simultaneous desynchronization and synchronization of different alpha responses in the human electroencephalograph: a neglected paradox?
Ausgabe der Zeitschrift
284

Datenquelle: Crossref

Abstract
This study aims to resolve a paradox. Experiments measuring alpha band power report an event related decrease (desynchronization) in alpha activity, whereas those measuring evoked alpha report synchronization. During a recognition memory task with human subjects, we measured the evoked (phase locked) and induced (not phase locked) alpha response. The findings reveal that evoked alpha is due to a transient phase locking (at about 100-200 ms poststimulus) of three alpha sub-bands which can be observed only at parieto-occipital sites. In contrast, induced alpha shows a widespread pattern of desynchronization at most recording sites. Thus, opposite alpha responses occur within similar time windows. Evoked alpha synchronization may reflect cortical inhibition which serves to increase the signal to noise ratio for activation processes following immediately later.
Addresses
  • Department of Physiological Psychology, Institute of Psychology, University of Salzburg, Hellbrunnerstrasse 34, A-5020, Salzburg, Austria. wolfgang.klimesch@sbg.ac.at
Autoren
DOI
10.1016/s0304-3940(00)00985-x
eISSN
1872-7972
Externe Identifier
  • PubMed Identifier: 10771171
Open access
false
ISSN
0304-3940
Ausgabe der Veröffentlichung
1-2
Zeitschrift
Neuroscience letters
Schlüsselwörter
  • Cerebral Cortex
  • Humans
  • Alpha Rhythm
  • Cortical Synchronization
  • Memory
  • Reaction Time
  • Evoked Potentials
  • Neural Inhibition
  • Time Factors
  • Adolescent
  • Adult
  • Female
  • Male
Sprache
eng
Medium
Print
Paginierung
97 - 100
Datum der Veröffentlichung
2000
Status
Published
Datum der Datenerfassung
2000
Titel
Simultaneous desynchronization and synchronization of different alpha responses in the human electroencephalograph: a neglected paradox?
Sub types
  • Research Support, Non-U.S. Gov't
  • Journal Article
Ausgabe der Zeitschrift
284

Datenquelle: Europe PubMed Central

Abstract
This study aims to resolve a paradox. Experiments measuring alpha band power report an event related decrease (desynchronization) in alpha activity, whereas those measuring evoked alpha report synchronization. During a recognition memory task with human subjects, we measured the evoked (phase locked) and induced (not phase locked) alpha response. The findings reveal that evoked alpha is due to a transient phase locking (at about 100-200 ms poststimulus) of three alpha sub-bands which can be observed only at parieto-occipital sites. In contrast, induced alpha shows a widespread pattern of desynchronization at most recording sites. Thus, opposite alpha responses occur within similar time windows. Evoked alpha synchronization may reflect cortical inhibition which serves to increase the signal to noise ratio for activation processes following immediately later.
Autoren
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/10771171
DOI
10.1016/s0304-3940(00)00985-x
ISSN
0304-3940
Ausgabe der Veröffentlichung
1-2
Zeitschrift
Neurosci Lett
Schlüsselwörter
  • Adolescent
  • Adult
  • Alpha Rhythm
  • Cerebral Cortex
  • Cortical Synchronization
  • Evoked Potentials
  • Female
  • Humans
  • Male
  • Memory
  • Neural Inhibition
  • Reaction Time
  • Time Factors
Sprache
eng
Country
Ireland
Paginierung
97 - 100
PII
S0304-3940(00)00985-X
Datum der Veröffentlichung
2000
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2000
Titel
Simultaneous desynchronization and synchronization of different alpha responses in the human electroencephalograph: a neglected paradox?
Sub types
  • Journal Article
  • Research Support, Non-U.S. Gov't
Ausgabe der Zeitschrift
284

Datenquelle: PubMed

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