@article{ref1,
title="The pure electrophysiology of stopping",
journal="International journal of psychophysiology",
year="2005",
author="Bekker, Evelijne M. and Kenemans, J. Leon and Hoeksma, Marco R. and Talsma, Durk and Verbaten, Marinus N.",
volume="55",
number="2",
pages="191-198",
abstract="In the stop-signal task, subjects should withhold their response in a choice reaction time task when a stop-signal, usually a tone, is presented. Successful stops have been associated with event-related potentials (ERPs) featuring a larger frontocentral positivity relative to failed stops. The functional interpretation of this stop-P3 has been disputed, because stop-ERPs are distorted by overlap from ERPs elicited by preceding go-stimuli. We effectively removed confounding potentials with the 'adjacent response filter method (ADJAR)'. Confirming an interpretation in terms of response inhibition, the stop-P3 remained and overlap removal resulted in a more anterior distribution. As a new finding, the N1 was larger on trials with successful stops, which suggests that inhibitory performance at least partly depended on the ability to switch attention to the stop-signal. Finally, the parietal P3 tended to peak earlier for successful than for failed stops. This is in line with the Horse Race Model, which states that faster stop-processes have a higher chance of winning the race against the go-process.<p /><p>Language: en</p>",
language="en",
issn="0167-8760",
doi="10.1016/j.ijpsycho.2004.07.005",
url="http://dx.doi.org/10.1016/j.ijpsycho.2004.07.005"
}