https://nova.newcastle.edu.au/vital/access/manager/Index ${session.getAttribute("locale")} 5 Reliability of triggering inhibitory process is a better predictor of impulsivity than SSRT https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:47713 N = 174) of healthy adolescents and young adults (15–35 years). Using a stop-signal paradigm with a number parity go task, we implemented a novel hierarchical Bayesian model of response inhibition that estimates stop-signal reaction time (SSRT) as a distribution and also accounts for failures to react to the stop-signal (i.e., “trigger failure”), and failure to react to the choice stimulus (i.e., “go failure” or omission errors). In line with previous studies, the model reduced estimates of SSRT by approximately 100 ms compared with traditional non-parametric SSRT estimation techniques. We found significant relationships between behavioural and self-report measures of impulsivity and traditionally estimated SSRT, that did not hold for the model-based SSRT estimates. Instead, behavioural impulsivity measures were correlated with rate of trigger failure. The relationship between trigger failure and impulsivity suggests that the former may index a higher order inhibition process, whereas SSRT may index a more automatic inhibition process. We suggest that the existence of distinct response inhibition processes that may be associated with different levels of cognitive control.]]> Wed 25 Jan 2023 11:37:35 AEDT ]]> Greater activation of the response inhibition network in females compared to males during stop signal task performance https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:37499 Wed 17 Feb 2021 15:31:16 AEDT ]]> The neural basis of stop-signal inhibition in healthy individuals and in schizophrenia patients https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:6881 Wed 11 Apr 2018 13:41:00 AEST ]]> The spatial and temporal dynamics of anticipatory preparation and response inhibition in task-switching https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:9438 Wed 11 Apr 2018 13:03:07 AEST ]]> Cognitive, emotional and behavioural consequences of child abuse in Saudi Arabia https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:31105 Wed 11 Apr 2018 11:29:52 AEST ]]> Response priming in the Go/NoGo task: the N2 reflects neither inhibition nor conflict https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:3793 Go effects were observed, and the P3 but not the N2 showed an Invalid > Valid effect. Conclusions: The P3, rather than the N2, reflects the inhibition of a planned response and/or the conflict between competing responses. Significance: The findings suggest the need for a major review of current interpretations of the N2 and P3 in inhibitory tasks.]]> Wed 11 Apr 2018 09:41:46 AEST ]]> Reconsidering electrophysiological markers of response inhibition in light of trigger failures in the stop-signal task https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:46472 N = 156). The parametric model accounted for both stop-signal reaction time (SSRT) and trigger failure (i.e., failures to initiate the inhibition process). The returned SSRT estimate (SSRTEXG3) was attenuated by ≈65 ms compared to traditional nonparametric SSRT estimates (SSRTint). The amplitude and latency of the N1 and P3 event-related potential components were derived for both stop-success and stop-failure trials and compared to behavioral estimates derived from traditional (SSRTint) and parametric (SSRTEXG3, trigger failure) models. Both the fronto-central N1 and P3 peaked earlier and were larger for stop-success than stop-failure trials. For stop-failure trials only, N1 peak latency correlated with both SSRT estimates as well as trigger failure and temporally coincided with SSRTEXG3, but not SSRTint. In contrast, P3 peak and onset latency were not associated with any behavioral estimates of inhibition for either trial type. While the N1 peaked earlier for stop-success than stop-failure trials, this effect was not found in poor task performers (i.e., high trigger failure/slow SSRT). These findings are consistent with attentional modulation of both the speed and reliability of the inhibition process, but not for poor performers. Together with the absence of any P3 onset latency effect, our findings suggest that attentional mechanisms are important in supporting speeded and reliable inhibition processes required in the stop-signal task.]]> Thu 02 Nov 2023 09:54:53 AEDT ]]> To go or not to go, that is the question: do the N2 and P3 reflect stimulus- or response-related conflict? https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:15889 Sat 24 Mar 2018 08:22:49 AEDT ]]> Win shifting in nectarivorous birds: selective inhibition of the learned win-stay response https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:15656 Sat 24 Mar 2018 08:19:47 AEDT ]]> Stop-signal task difficulty and the right inferior frontal gyrus https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:19086 Sat 24 Mar 2018 08:05:21 AEDT ]]> On the use of event-related potentials to auditory stimuli in the Go/NoGo task https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:17126 Sat 24 Mar 2018 08:02:30 AEDT ]]> Sustained brain activation supporting stop-signal task performance https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:21023 Sat 24 Mar 2018 07:50:35 AEDT ]]> Development of inhibitory processing during the Go/Nogo task a behavioral and event-related potential study of children and adults https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:3775 Sat 24 Mar 2018 07:21:44 AEDT ]]> The development of stop-signal and Go/Nogo response inhibition in children aged 7–12 years: performance and event-related potential indices https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:3766 Sat 24 Mar 2018 07:20:52 AEDT ]]> Stop-signal response inhibition in schizophrenia: behavioural, event-related potential and functional neuroimaging data https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:22566 Sat 24 Mar 2018 07:14:47 AEDT ]]> A Bayesian approach for estimating the probability of trigger failures in the stop-signal paradigm https://nova.newcastle.edu.au/vital/access/manager/Repository/uon:32411 Mon 23 Sep 2019 14:02:23 AEST ]]>