Effects of task complexity on ERP components in Go/Nogo tasks

Alcohol abuse and ERP components in Go/No-go tasks using alcohol-related stimuli: Impact of alcohol avoidance

“…Our results showed also that low alcohol avoiders exhibited higher P300 amplitude for alcohol-related cues during No-go trials than during Go trials, but no such difference was found in high alcohol avoiders, suggesting lesser reactivity to alcohol cues in higher alcohol avoiders. Such finding (less P300 amplitude reactivity, following by larger N200 amplitude) has previously been associated with a higher task difficulty (Gajewski & Falkenstein, 2013;Benikos et al, 2013), suggesting that inhibiting a response towards alcohol-related cue would be more difficult in high alcohol avoiders than in low avoiders. Higher alcohol avoiders could allocate more attentionnal resources to inhibit the response (i.e., higher N200 amplitude), leading to less reactivity to alcohol-cues as compared to low alcohol avoiders (i.e., no higher P300 amplitude for alcohol related cues).…”

“…While the frontal N200 would reflect a general control process during No-go trials (Nieuwenhuis et al, 2003), there are debates over its possible role in the inhibition of a premature response (e.g., Falkenstein et al, 1999;Lavric et al, 2004), in the conflict monitoring between execution and inhibition of a single response (Nieuwenhuis et al, 2003;Yeung and Cohen, 2006) or in neither of these (Smith et al, 2007). The frontocentral P300 would index the late decision process to inhibit the motor response (Smith et al, 2010;Gajewski & Falkenstein, 2013;Huster et al, 2013).…”

The persistent influence of pediatric concussion on attention and cognitive control during flanker performance

“…Previous evaluations of adults have also observed alterations in N2 latency and amplitude following concussion Moore, Drollette, & et al, 2014). The latency of the fronto-central N2 is thought to reflect aspects of the response selection process associated with the resolution of stimulus-response conflict (Gajewski & Falkenstein, 2012;Gajewski, Stoerig, & Falkenstein, 2008). A concussion history therefore appears to negatively relate to the speed of conflict resolution.…”

Stroop event-related potentials as a bioelectrical correlate of frontal lobe dysfunction in multiple sclerosis

“…The frontal P300 component in go/no-go-like tasks has been associated with an inhibitory mechanism [24]. However, in the present study, the subjects only had to mentally discriminate between congruent and incongruent stimuli; therefore, conflict did not arise at the response level.…”