Neural correlates of late positivities associated with infrequent visual events and response errors

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Helenius , P , Laasonen , M , Hokkanen , L , Paetau , R & Niemivirta , M 2010 , ' Neural correlates of late positivities associated with infrequent visual events and response errors ' , NeuroImage , vol. 53 , no. 2 , pp. 619-628 . https://doi.org/10.1016/j.neuroimage.2010.06.059

Title: Neural correlates of late positivities associated with infrequent visual events and response errors
Author: Helenius, Paivi; Laasonen, Marja; Hokkanen, Laura; Paetau, Ritva; Niemivirta, Markku
Other contributor: University of Helsinki, Korva-, nenä- ja kurkkutautien klinikka
University of Helsinki, Behavioural Sciences
University of Helsinki, Clinicum
University of Helsinki, Behavioural Sciences





Date: 2010
Language: eng
Number of pages: 10
Belongs to series: NeuroImage
ISSN: 1053-8119
DOI: https://doi.org/10.1016/j.neuroimage.2010.06.059
URI: http://hdl.handle.net/10138/252771
Abstract: The P3 response has been one of the most extensively studied event-related potential (ERP) components. Still, the exact functional role and cortical basis of P3 has remained unsettled. To explore the cortical processes underlying the generation of late positivities, we recorded the activation evoked by frequent Go and infrequent NoGo stimuli and correct versus erroneous responses using combined magnetoencephalography (MEG) and ERP measurements during a visual Go/NoGo task. The stimulus-locked signals in the ERP channels revealed an enhanced negative N2 and a prominent late positive component (LPC) after the complex NoGo stimuli associated with successfully withheld responses. The response-locked ERP signals revealed error-related negativity (ERN) and positivity (Pe) after erroneous responses. The positive LPC and Pe components were coupled with functionally and temporally comparable MEG signals. This MEG activation detected during the positive components was localized bilaterally in the posterior temporal cortex. In the response-locked averages, the temporal activity was enhanced around 200 ms after a commission of an error. In the stimulus-locked averages, the activation was also enhanced after infrequent NoGo stimuli around 500 ms after stimulus onset and delayed about 80 ms for the initially miscategorized NoGo stimuli accompanied by erroneous response. The results suggest that the cortical correlates of Pe are not specifically related to commission of an error, but both the LPC and Pe components, and bilateral temporal cortices, are more generally involved in stimulus-driven attentional processing evoked by unexpected stimuli. The negative ERP components evoked by NoGo stimuli (N2) and erroneous responses (ERN) were found to be associated with partly non-overlapping neural sources.
Subject: 515 Psychology
312 Clinical medicine
ANTERIOR CINGULATE CORTEX
LATE ERP COMPONENTS
RARE TARGET
INTRACEREBRAL POTENTIALS
SOURCE LOCALIZATION
REACTION TASKS
PARIETAL LOBE
HUMAN BRAIN
P300
PERCEPTION
516 Educational sciences
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