Error Related Positivity
Contents |
the brain as measured through electroencephalography (EEG) and time-locked to an external event (e.g., presentation of a visual stimulus) or a response (e.g. an error of commission). A robust ERN component is observed after errors are committed error related negativity definition during various choice tasks, even when the participant is not explicitly aware of making
Feedback Related Negativity
the error;[1] however, in the case of unconscious errors the ERN is reduced.[2][3] An ERN is also observed when non-human primates
Which Of The Following Tasks Is Primarily A Measure Of Response Inhibition?
commit errors.[4] Contents 1 History 2 Component characteristics 3 Main paradigms 4 Functional sensitivity 5 Theory/source 6 Feedback error-related negativity 7 Clinical applications 8 Error-related positivity 9 See also 10 References History[edit] The ERN
Correct Response Negativity
was first discovered in 1990 by two independent research teams; Michael Falkenstein, J. Hohnsbein, J. Hoormann, & L. Blanke (1990) at the Institute for Work Physiology and Neurophysiology in Dortmund, Germany (who called it the "Ne"), and W.J. "Bill" Gehring, M.G.H. Coles, D.E. Meyer & E. Donchin (1990) at the University of Michigan, USA.[5] The ERN was observed in response to errors committed by study participants during simple choice pe response response tasks. Component characteristics[edit] The ERN is a sharp negative going signal which begins about the same time an incorrect motor response begins, (response locked event-related potential), and typically peaks from 80-150 milliseconds (ms) after the erroneous response begins (or 40-80 ms after the onset of electromyographic activity).[6][7][8][9][10][2] The ERN is the largest at frontal and central electrode sites.[2] A typical method for determining the average ERN amplitude for an individual involves calculating the peak-to-peak difference in voltage between the average of the most negative peaks 1-150 ms after response onset, and the average amplitude of positive peaks 100-0 ms before response onset.[11] For optimal resolution of the signal, reference electrodes are typically placed behind both ears using either hardware or arithmetically linked mastoid electrodes.[7] Main paradigms[edit] Any paradigm in which mistakes are made during motor responses can be used to measure the ERN. The most important feature of any ERN paradigm is obtaining a sufficient number of errors in the participant's responses. Early experiments identifying the component used a variety of techniques, including word and tone identification, and categorical discrimination (e.g. are the following an animal?).[5][12][13] However, the majority of experimental paradigms that elicit ERN deflections have been a variant on the Eriksen "Flanker",[11][14]
et en dehors de Facebook via les cookies. Pour en savoir plus, notamment sur les moyens de contrôle disponibles, consultez la Politique d’utilisation des cookies.FacebookAdresse e-mail ou mobileMot de passeInformations error related de compte oubliées ?WarningUne erreur s’est produite. Veuillez réessayer plus tard.Français (France)English (US)EspañolTürkçePortuguês (Portugal)العربيةItalianoDeutschहिन्दी中文(简体)日本語InscriptionConnexionMessengerFacebook LiteMobileRetrouver des amisBadgesPersonnesPagesLieuxJeuxLieuxCélébritésGroupesMomentsÀ proposCréer une publicitéCréer une PageDéveloppeursEmploisConfidentialitéCookiesChoisir sa pubConditions d’utilisationAideParamètresHistorique personnel Facebook © 2016