Event-related potential (original) (raw)
An event-related potential (ERP) is the measured brain response that is the direct result of a specific sensory, cognitive, or motor event. More formally, it is any stereotyped electrophysiological response to a stimulus. The study of the brain in this way provides a noninvasive means of evaluating brain functioning. ERPs are measured by means of electroencephalography (EEG). The magnetoencephalography (MEG) equivalent of ERP is the ERF, or event-related field. Evoked potentials and are subtypes of ERPs.
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| dbo:abstract | Als ereigniskorrelierte Potentiale oder ereignisbezogene Potentiale (EKP, englisch: event-related potentials, ERP) werden Wellenformen im Elektroenzephalogramm (EEG) bezeichnet, die mit einem beobachtbaren Ereignis zusammenhängen. Ein solches Ereignis kann ein Sinnesreiz sein, der auf die Versuchsperson einwirkt, oder eine Bewegung der Versuchsperson. Daher kann man zwischen reiz- und bewegungsbezogenen EKPs unterscheiden. Um den Zusammenhang zwischen Ereignis und Potential zu erkennen, muss das Ereignis viele Male wiederholt werden und das EEG bei jeder Wiederholung mit dem gleichen Zeitbezug zum Ereignis gemessen werden. Ist das Ereignis der immer gleiche Reiz ohne weitere Instruktion an die Testperson, dann haben ihre EKPs nur wahrnehmungsbezogene Komponenten und man spricht von evozierten Potentialen. Man kann jedoch verschiedene Ereignisse verwenden und von diesen nur manche beachten lassen oder auf nur manche reagieren lassen, sodass sich die Verarbeitung dieser Ereignisse in Prozessen der Aufmerksamkeitszuwendung, Entdeckung von Irregularitäten, Bewusstheit der Wahrnehmung, Entscheidung, Erwartung, Bewegungsvorbereitung unterscheiden kann. Mit den EKPs lassen sich neurophysiologische Korrelate dieser kognitiven Prozesse messen. Erforschung von EKPs ist daher Teil der kognitiven Neurowissenschaft. EKPs geben präzise Auskunft darüber, wann Gebiete der Hirnrinde aktiviert werden, aber nur unpräzise darüber, welche Gebiete dies sind. Insofern sind sie komplementär zur funktionellen Kernspintomografie, welche die Aktivierung von Hirnarealen sehr gut räumlich, aber nur unpräzise zeitlich messen kann. Vorteile der EKP-Methodik sind die relativ niedrigen Kosten und die Nicht-Invasivität der Messung, da lediglich Mess-Elektroden an die Kopfhaut geklebt werden. (de) An event-related potential (ERP) is the measured brain response that is the direct result of a specific sensory, cognitive, or motor event. More formally, it is any stereotyped electrophysiological response to a stimulus. The study of the brain in this way provides a noninvasive means of evaluating brain functioning. ERPs are measured by means of electroencephalography (EEG). The magnetoencephalography (MEG) equivalent of ERP is the ERF, or event-related field. Evoked potentials and are subtypes of ERPs. (en) Un potencial relacionado con evento (ERP) es la medida de la respuesta cerebral resultado directo de un evento específico sensorial, cognitivo o motriz. Es decir, es la respuesta electrofisiológica estereotipada a un estímulo. El estudio del cerebro en esta forma provee medios no invasivos de evaluar el funcionamiento del cerebro en pacientes con enfermedades cognitivas. Los ERPs se miden con electroencefalografía (EEG). La magnetoencelografía (MEG) equivalente al ERP es de ERF o campo de evento relacionado. (es) 사건 관련 전위(event-related potential, ERP)는 뇌에서 어떠한 감각적, 인지적 자극이나 등의 사건에 대한 반응으로 나타나는 전위차를 의미한다. 자극에 대한 정형화된 전기생리학적 반응을 통칭하는 용어로 사용되기도 한다. 사건 관련 전위를 탐구함으로써 뇌의 기능을 으로 탐구할 수 있다. 뇌전도로 측정하는 경우가 대부분이며, 뇌자도를 사용할 경우 전위가 아닌 자기장을 측정하기 때문에 사건 관련 장(event-related field, ERF)이라고 부른다. 는 사건 관련 전위의 특수한 형태이다. 극성과 발생 시간으로 각 전위를 이름짓는다. 예를 들어, 은 자극 후 100ms정도 후에 음전위(negative)로 나타나는 ERP, 은 자극 후 300ms정도 후에 양전위(positive)로 나타나는 ERP를 가리킨다. (ko) Event-related-potentials, of kortweg ERP's, zijn de elektrofysiologische reacties van de hersenen op gebeurtenissen (’events’) in de omgeving. Deze gebeurtenissen kunnen eenvoudige zintuiglijke prikkels zijn, zoals tonen, lichtflitsen of elektrische stimulatie van de huid. Echter, ook motorische gebeurtenissen zoals het indrukken van een knop kunnen ERP's uitlokken. (nl) Un potenziale evento-correlato (sigla ERP dall'inglese event-related potential) è una risposta cerebrale misurabile, che si forma direttamente come risultato di un pensiero oppure di una percezione. In una definizione più formale, è qualsiasi risposta elettrofisiologica a uno stimolo interno oppure esterno. Un'onda che mostra diversi componenti dell'ERP, che includono la e la P300 Gli ERP vengono misurati con l'elettroencefalografia (EEG). Potenziali equivalenti si registrano nella magnetoencefalografia (MEG) dove la controparte degli ERP è la campo evento-correlato ERF (event-related field). (it) 事象関連電位 (じしょうかんれんでんい、英: event-related potential, ERP) とは、思考や認知のまさに結果として、何らかの形で計測された脳の反応である。より正確に言うと、それは内的・外的刺激に対する類型的な電気生理学的反応である。 ERP は脳波によって計測される。脳磁図 (MEG) による同様の概念は event-related field (ERF) と呼ばれる。 (ja) Potenciais relacionados a eventos (PRE) (em inglês: event-related potentials, ERP) é uma análise que permite identificar a atividade cerebral específica quando o individuo é exposto a determinados estímulos (internos ou externos). A atividade é medida por eletroencefalografia (EEG). (pt) Потенциал, связанный с событием (ПСС, ССП, англ. event-related potential — ERP) — измеренный отклик мозга, который является прямым результатом определенного ощущения, когнитивного или события. Более формально, это любой типичный электрофизиологический отклик на стимул. Таким образом, исследование мозга обеспечивают неинвазивные способы оценки функционирования мозга. ПСС измеряются с помощью электроэнцефалографии (ЭЭГ). Магнитоэнцефалографическим (МЭГ) эквивалентом ПСС является МПСС, или (магнитное) поле, связанное с событием (англ. event-related field — ERF). Вызванный потенциал и являются разновидностями ПСС. (ru) |
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| rdfs:comment | An event-related potential (ERP) is the measured brain response that is the direct result of a specific sensory, cognitive, or motor event. More formally, it is any stereotyped electrophysiological response to a stimulus. The study of the brain in this way provides a noninvasive means of evaluating brain functioning. ERPs are measured by means of electroencephalography (EEG). The magnetoencephalography (MEG) equivalent of ERP is the ERF, or event-related field. Evoked potentials and are subtypes of ERPs. (en) Un potencial relacionado con evento (ERP) es la medida de la respuesta cerebral resultado directo de un evento específico sensorial, cognitivo o motriz. Es decir, es la respuesta electrofisiológica estereotipada a un estímulo. El estudio del cerebro en esta forma provee medios no invasivos de evaluar el funcionamiento del cerebro en pacientes con enfermedades cognitivas. Los ERPs se miden con electroencefalografía (EEG). La magnetoencelografía (MEG) equivalente al ERP es de ERF o campo de evento relacionado. (es) 사건 관련 전위(event-related potential, ERP)는 뇌에서 어떠한 감각적, 인지적 자극이나 등의 사건에 대한 반응으로 나타나는 전위차를 의미한다. 자극에 대한 정형화된 전기생리학적 반응을 통칭하는 용어로 사용되기도 한다. 사건 관련 전위를 탐구함으로써 뇌의 기능을 으로 탐구할 수 있다. 뇌전도로 측정하는 경우가 대부분이며, 뇌자도를 사용할 경우 전위가 아닌 자기장을 측정하기 때문에 사건 관련 장(event-related field, ERF)이라고 부른다. 는 사건 관련 전위의 특수한 형태이다. 극성과 발생 시간으로 각 전위를 이름짓는다. 예를 들어, 은 자극 후 100ms정도 후에 음전위(negative)로 나타나는 ERP, 은 자극 후 300ms정도 후에 양전위(positive)로 나타나는 ERP를 가리킨다. (ko) Event-related-potentials, of kortweg ERP's, zijn de elektrofysiologische reacties van de hersenen op gebeurtenissen (’events’) in de omgeving. Deze gebeurtenissen kunnen eenvoudige zintuiglijke prikkels zijn, zoals tonen, lichtflitsen of elektrische stimulatie van de huid. Echter, ook motorische gebeurtenissen zoals het indrukken van een knop kunnen ERP's uitlokken. (nl) Un potenziale evento-correlato (sigla ERP dall'inglese event-related potential) è una risposta cerebrale misurabile, che si forma direttamente come risultato di un pensiero oppure di una percezione. In una definizione più formale, è qualsiasi risposta elettrofisiologica a uno stimolo interno oppure esterno. Un'onda che mostra diversi componenti dell'ERP, che includono la e la P300 Gli ERP vengono misurati con l'elettroencefalografia (EEG). Potenziali equivalenti si registrano nella magnetoencefalografia (MEG) dove la controparte degli ERP è la campo evento-correlato ERF (event-related field). (it) 事象関連電位 (じしょうかんれんでんい、英: event-related potential, ERP) とは、思考や認知のまさに結果として、何らかの形で計測された脳の反応である。より正確に言うと、それは内的・外的刺激に対する類型的な電気生理学的反応である。 ERP は脳波によって計測される。脳磁図 (MEG) による同様の概念は event-related field (ERF) と呼ばれる。 (ja) Potenciais relacionados a eventos (PRE) (em inglês: event-related potentials, ERP) é uma análise que permite identificar a atividade cerebral específica quando o individuo é exposto a determinados estímulos (internos ou externos). A atividade é medida por eletroencefalografia (EEG). (pt) Als ereigniskorrelierte Potentiale oder ereignisbezogene Potentiale (EKP, englisch: event-related potentials, ERP) werden Wellenformen im Elektroenzephalogramm (EEG) bezeichnet, die mit einem beobachtbaren Ereignis zusammenhängen. Ein solches Ereignis kann ein Sinnesreiz sein, der auf die Versuchsperson einwirkt, oder eine Bewegung der Versuchsperson. Daher kann man zwischen reiz- und bewegungsbezogenen EKPs unterscheiden. Um den Zusammenhang zwischen Ereignis und Potential zu erkennen, muss das Ereignis viele Male wiederholt werden und das EEG bei jeder Wiederholung mit dem gleichen Zeitbezug zum Ereignis gemessen werden. (de) Потенциал, связанный с событием (ПСС, ССП, англ. event-related potential — ERP) — измеренный отклик мозга, который является прямым результатом определенного ощущения, когнитивного или события. Более формально, это любой типичный электрофизиологический отклик на стимул. Таким образом, исследование мозга обеспечивают неинвазивные способы оценки функционирования мозга. (ru) |
| rdfs:label | Ereigniskorrelierte Potentiale (de) Potencial relacionado con evento (es) Event-related potential (en) Potenziale evento-correlato (it) 事象関連電位 (ja) 사건 관련 전위 (ko) Event-related potential (nl) Potenciais de eventos relacionados (pt) Потенциал, связанный с событием (ru) |
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